/* ==========================================================================
   OSA ŽILINA – PREMIUM B2B SWISS PRECISION DESIGN SYSTEM (v2/style.css)
   Clean, Professional, Elite Corporate Portal for Siemens/Innomotics Pohony
   ========================================================================== */

/* Typography & Base Variables */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Montserrat:wght@300;400;500;600;700;800;900&display=swap');

:root {
    /* Color Tokens - Swiss Minimalist / High-Contrast B2B */
    --primary-slate: #0F172A;      /* Deep Slate Charcoal */
    --primary-slate-rgb: 15, 23, 42;
    --bg-canvas: #F8FAFC;          /* Clean Alpine White */
    --bg-card: #FFFFFF;            /* Pure Card White */
    --border-color: #E2E8F0;       /* Platinum Grey */
    --brand-color: #194185;      /* Corporate Brand Blue Accent */
    --brand-color-rgb: 25, 65, 133;
    --brand-color-hover: #123062;
    --text-primary: #1E293B;       /* Dark text for maximum B2B reading */
    --text-secondary: #475569;     /* Slate Muted Text */
    --text-muted: #94A3B8;         /* Light label grey */
    
    /* Functional Colors */
    --accent-blue: #0EA5E9;        /* Siemens Sky Blue */
    --accent-green: #10B981;       /* Operational Green */
    --accent-red: #EF4444;         /* Error Red */
    
    /* Typography */
    --font-headings: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions & Shadows */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    
    /* Siemens Logo Filter */
    --siemens-logo-filter: none;
    
    /* Company Logo Filter */
    --logo-filter: none;
}

/* ==========================================================================
   DARK THEME VARIABLES
   ========================================================================== */
[data-theme="dark"] {
    --bg-canvas: #090D16;          /* Deep Carbon Canvas */
    --bg-card: #111827;            /* Matte Charcoal Card */
    --border-color: #1F2937;       /* Dark slate border */
    --text-primary: #F3F4F6;       /* Clean Light Text */
    --text-secondary: #9CA3AF;     /* Soft Muted Grey */
    --text-muted: #6B7280;
    --primary-slate: #030712;
    --primary-slate-rgb: 3, 7, 18;
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.5);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.6);
    
    /* Brand Blue in Dark Mode */
    --brand-color: #2563EB;
    --brand-color-rgb: 37, 99, 235;
    --brand-color-hover: #1D4ED8;
    
    /* Siemens Logo Filter in Dark Mode */
    --siemens-logo-filter: brightness(0) invert(1);
    
    /* Company Logo Filter in Dark Mode */
    --logo-filter: brightness(0) invert(1);
}

/* Base Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-canvas);
    color: var(--text-secondary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.25;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-smooth);
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 30px;
}

section {
    padding: 100px 0;
    position: relative;
}

.section-dark {
    background-color: var(--primary-slate);
    color: rgba(255, 255, 255, 0.85);
}

.section-dark h2, .section-dark h3 {
    color: #FFFFFF;
}

.text-center {
    text-align: center;
}

.section-header {
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.5px;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.section-dark .section-header p {
    color: rgba(255, 255, 255, 0.6);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--border-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-brand {
    background-color: var(--brand-color);
    color: #FFFFFF;
}

.btn-brand:hover {
    background-color: var(--brand-color-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(var(--brand-color-rgb), 0.25);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--brand-color);
    color: var(--brand-color);
}

.btn-outline:hover {
    background-color: var(--brand-color);
    color: #FFFFFF;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--primary-slate);
    color: #FFFFFF;
}

.btn-secondary:hover {
    background-color: #1E293B;
    transform: translateY(-2px);
}

.btn-dark-outline {
    background-color: transparent;
    border-color: rgba(255,255,255,0.25);
    color: #FFFFFF;
}

.btn-dark-outline:hover {
    background-color: #FFFFFF;
    color: var(--primary-slate);
    border-color: #FFFFFF;
    transform: translateY(-2px);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background-color: rgba(var(--brand-color-rgb), 0.1);
    color: var(--brand-color);
    border-left: 3px solid var(--brand-color);
    border-radius: 2px;
    margin-bottom: 15px;
}

.badge-blue {
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--accent-blue);
    border-left-color: var(--accent-blue);
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
#site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 85px;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

#site-header.scrolled {
    height: 75px;
    box-shadow: var(--shadow-md);
    background-color: var(--bg-card);
}

[data-theme="dark"] #site-header {
    background-color: rgba(17, 24, 39, 0.9);
    border-bottom-color: var(--border-color);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo img {
    height: 48px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
    filter: var(--logo-filter);
}

#site-header.scrolled .logo img {
    height: 42px;
}

#main-nav {
    display: flex;
    align-items: center;
}

#main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

#main-nav ul li {
    position: relative;
}

#main-nav ul li a {
    font-family: var(--font-headings);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    padding: 10px 0;
    border-bottom: 2px solid transparent;
}

#main-nav ul li a:hover, 
#main-nav ul li.active > a {
    color: var(--brand-color);
    border-bottom-color: var(--brand-color);
}

/* Dropdown Menu */
.has-dropdown .dropdown {
    position: absolute;
    top: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    width: 250px;
    padding: 15px 0;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown a {
    display: block;
    padding: 10px 25px !important;
    font-size: 0.8rem !important;
    font-weight: 500 !important;
    text-transform: none !important;
    border: none !important;
}

.dropdown a:hover {
    background-color: rgba(var(--brand-color-rgb), 0.05);
    color: var(--brand-color) !important;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle {
    width: 38px;
    height: 38px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.theme-toggle:hover {
    border-color: var(--brand-color);
    color: var(--brand-color);
}

/* Theme switch icons */
.theme-icon-sun { display: none; }
[data-theme="dark"] .theme-icon-sun { display: block; }
[data-theme="dark"] .theme-icon-moon { display: none; }

/* Hamburger Menu button */
.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.nav-mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-smooth);
}

/* ==========================================================================
   SPA PAGES VISIBILITY
   ========================================================================== */
.page-view {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease;
    padding-top: 85px; /* Offset for sticky header */
}

.page-view.active {
    display: block;
    opacity: 1;
}

/* ==========================================================================
   HOME PAGE: HERO SECTION
   ========================================================================== */
#hero {
    min-height: calc(100vh - 85px);
    display: flex;
    align-items: center;
    background: radial-gradient(circle at 80% 20%, rgba(var(--brand-color-rgb), 0.08) 0%, transparent 60%),
                radial-gradient(circle at 10% 80%, rgba(14, 165, 233, 0.08) 0%, transparent 60%),
                var(--bg-card);
    position: relative;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: 3.2rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.hero-text h1 span {
    color: var(--brand-color);
    background: linear-gradient(135deg, var(--brand-color) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 400;
    max-width: 600px;
}

.hero-actions-row {
    display: flex;
    gap: 20px;
    align-items: center;
}

/* Floating Display Visual - Right Side */
.hero-visual {
    position: relative;
    height: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-visual-bg {
    position: absolute;
    width: 450px;
    height: 450px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--brand-color-rgb),0.1) 0%, transparent 70%);
    z-index: 1;
}

.siemens-badge-wrapper {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 14px 20px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 10;
    animation: floating 6s ease-in-out infinite;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: var(--transition-smooth);
}

.siemens-logo-badge {
    height: 18px;
    width: auto;
    object-fit: contain;
    filter: var(--siemens-logo-filter);
    transition: var(--transition-smooth);
}

.siemens-badge-divider {
    width: 100%;
    height: 1px;
    background-color: var(--border-color);
    transition: var(--transition-smooth);
}

.siemens-partner-badge {
    height: 40px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.main-motor-display {
    position: relative;
    z-index: 5;
    width: 85%;
    max-width: 440px;
    object-fit: contain;
    filter: drop-shadow(0 25px 50px rgba(0,0,0,0.15));
    animation: floating-motor 7s ease-in-out infinite;
}

/* Hero Carousel Styling */
.hero-carousel {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 5;
}

.hero-carousel-slides {
    position: relative;
    width: 100%;
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform: scale(0.85) translateY(20px);
}

.hero-carousel-slide.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1) translateY(0);
}

.hero-carousel-caption {
    margin-top: 20px;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease 0.3s, transform 0.4s ease 0.3s;
}

.hero-carousel-slide.active .hero-carousel-caption {
    opacity: 1;
    transform: translateY(0);
}

.hero-carousel-caption span {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 6px 16px;
    border-radius: 30px;
    box-shadow: var(--shadow-sm);
    display: inline-block;
    transition: var(--transition-smooth);
}

/* Light / Dark Mode adaptive caption styling */
[data-theme="dark"] .hero-carousel-caption span {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

.hero-carousel-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 15px;
    z-index: 10;
}

.carousel-control-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1.3rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    line-height: 0;
    padding: 0;
}

.carousel-control-btn:hover {
    background: var(--brand-color);
    border-color: var(--brand-color);
    color: #FFFFFF;
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.hero-carousel-indicators {
    display: flex;
    gap: 8px;
}

.carousel-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.carousel-indicator.active {
    width: 24px;
    border-radius: 4px;
    background: var(--brand-color);
}

/* Interactive Overlay Widget */
.hero-telemetry-badge {
    position: absolute;
    bottom: 20px;
    left: 0;
    background-color: rgba(var(--primary-slate-rgb), 0.95);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-md);
    padding: 18px;
    width: 250px;
    box-shadow: var(--shadow-xl);
    z-index: 10;
    animation: floating-card 8s ease-in-out infinite;
    color: #FFFFFF;
}

.telemetry-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--brand-color);
    letter-spacing: 1px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.telemetry-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-green);
    display: inline-block;
    box-shadow: 0 0 8px var(--accent-green);
}

.telemetry-data {
    font-size: 0.8rem;
    font-weight: 500;
}

.telemetry-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    color: rgba(255,255,255,0.7);
}

.telemetry-row strong {
    color: #FFFFFF;
}

/* Floating Animations */
@keyframes floating {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes floating-motor {
    0% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-18px) scale(1.02); }
    100% { transform: translateY(0px) scale(1); }
}

@keyframes floating-card {
    0% { transform: translateY(0px) translateX(0px); }
    50% { transform: translateY(-8px) translateX(6px); }
    100% { transform: translateY(0px) translateX(0px); }
}

/* ==========================================================================
   BENTO GRID SECTION
   ========================================================================== */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 220px;
    gap: 30px;
    margin-top: 20px;
}

.bento-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 35px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.bento-card:hover {
    transform: translateY(-5px);
    border-color: var(--brand-color);
    box-shadow: var(--shadow-lg);
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--brand-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-smooth);
}

.bento-card:hover::before {
    transform: scaleX(1);
}

.bento-card-icon {
    font-size: 2.2rem;
    color: var(--brand-color);
    margin-bottom: 20px;
}

.bento-card-info h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.bento-card-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Bento card sizing exceptions */
.bento-large-2x {
    grid-column: span 2;
    grid-row: span 2;
    background: linear-gradient(135deg, rgba(var(--brand-color-rgb),0.05) 0%, rgba(14,165,233,0.05) 100%), var(--bg-card);
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 40px;
}

.bento-large-2x .bento-large-content {
    flex: 1.2;
    display: flex;
    flex-direction: column;
    height: 100%;
    justify-content: space-between;
}

.bento-large-2x .bento-large-visual {
    flex: 0.8;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bento-large-2x .bento-large-visual img {
    max-height: 260px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 15px 30px rgba(0,0,0,0.1));
}

.bento-row-span2 {
    grid-row: span 2;
    justify-content: space-between;
}

/* ==========================================================================
   PRODUCTS CATALOGUE & TABS
   ========================================================================== */
.catalog-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
}

.catalog-tab-btn {
    padding: 14px 30px;
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.catalog-tab-btn:hover, 
.catalog-tab-btn.active {
    background-color: var(--primary-slate);
    color: #FFFFFF;
    border-color: var(--primary-slate);
}

[data-theme="dark"] .catalog-tab-btn:hover, 
[data-theme="dark"] .catalog-tab-btn.active {
    background-color: var(--brand-color);
    color: #FFFFFF;
    border-color: var(--brand-color);
}

.catalog-tab-content {
    display: none;
}

.catalog-tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

/* Product Card design */
.product-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--brand-color);
    box-shadow: var(--shadow-lg);
}

.product-card-img-wrap {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    background-color: rgba(var(--primary-slate-rgb), 0.02);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    position: relative;
}

.product-card-img-wrap img {
    max-height: 140px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.product-card:hover .product-card-img-wrap img {
    transform: scale(1.05);
}

.product-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.product-sku {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 15px;
}

.product-specs-list {
    margin-bottom: 25px;
    font-size: 0.85rem;
}

.product-spec-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

[data-theme="dark"] .product-spec-row {
    border-bottom-color: rgba(255,255,255,0.04);
}

.product-spec-row span {
    color: var(--text-secondary);
}

.product-spec-row strong {
    color: var(--text-primary);
    font-weight: 600;
}

.product-price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.product-price-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--text-muted);
}

.product-price {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--brand-color);
    font-family: var(--font-headings);
}

/* ==========================================================================
   MULTI-STEP DYNAMIC MLFB SIEMENS CONFIGURATOR
   ========================================================================== */
.configurator-block {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    margin-top: 50px;
}

.config-header {
    background-color: var(--primary-slate);
    color: #FFFFFF;
    padding: 30px 40px;
    border-bottom: 4px solid var(--brand-color);
}

.config-header h3 {
    color: #FFFFFF;
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.config-header p {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
}

.config-layout {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
}

.config-steps-panel {
    padding: 40px;
    border-right: 1px solid var(--border-color);
}

/* Configurator Step Nav Indicators */
.config-steps-indicator {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.config-step-indicator-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    font-family: var(--font-headings);
    text-transform: uppercase;
}

.config-step-indicator-item.active {
    color: var(--brand-color);
}

.config-step-indicator-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.config-step-indicator-item.active .config-step-indicator-number {
    background-color: var(--brand-color);
    color: #FFFFFF;
}

/* Config steps display */
.config-step-box {
    display: none;
}

.config-step-box.active {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

.config-step-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 25px;
    color: var(--text-primary);
}

/* Options Grid for Configurator Buttons */
.config-options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.config-btn-option {
    padding: 16px;
    background-color: var(--bg-canvas);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    text-align: center;
    transition: var(--transition-smooth);
    color: var(--text-primary);
}

.config-btn-option:hover {
    border-color: var(--brand-color);
    background-color: rgba(var(--brand-color-rgb), 0.02);
}

.config-btn-option.active {
    border-color: var(--brand-color);
    background-color: rgba(var(--brand-color-rgb), 0.08);
    color: var(--brand-color);
    box-shadow: 0 0 10px rgba(var(--brand-color-rgb), 0.05);
}

.config-btn-option.disabled {
    opacity: 0.3;
    pointer-events: none;
}

.config-btn-option small {
    display: block;
    font-weight: 400;
    color: var(--text-muted);
    margin-top: 5px;
}

/* Custom Addon List */
.config-addons-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.config-addon-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background-color: var(--bg-canvas);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.config-addon-row:hover {
    border-color: var(--brand-color);
}

.config-addon-row.active {
    border-color: var(--brand-color);
    background-color: rgba(var(--brand-color-rgb), 0.05);
}

.config-addon-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.config-addon-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.config-addon-row.active .config-addon-checkbox {
    border-color: var(--brand-color);
    background-color: var(--brand-color);
}

.config-addon-checkbox::before {
    content: '✓';
    color: #FFFFFF;
    font-size: 0.75rem;
    font-weight: bold;
    display: none;
}

.config-addon-row.active .config-addon-checkbox::before {
    display: block;
}

.config-addon-label h4 {
    font-size: 0.9rem;
    font-weight: 600;
}

.config-addon-label p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.config-addon-price {
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.config-addon-row.active .config-addon-price {
    color: var(--brand-color);
}

/* Config Navigation Panel */
.config-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 25px;
}

/* Right Receipt / Code Summary Panel */
.config-receipt-panel {
    background-color: rgba(var(--primary-slate-rgb), 0.02);
    padding: 40px;
    display: flex;
    flex-direction: column;
}

[data-theme="dark"] .config-receipt-panel {
    background-color: rgba(0,0,0,0.15);
}

.receipt-title {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    margin-bottom: 25px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.receipt-specs-box {
    margin-bottom: 30px;
}

.receipt-spec-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border-color);
    font-size: 0.85rem;
}

.receipt-spec-item label {
    color: var(--text-secondary);
}

.receipt-spec-item value {
    font-weight: 600;
    color: var(--text-primary);
}

/* Code Panel */
.receipt-code-panel {
    background-color: var(--primary-slate);
    color: #FFFFFF;
    border-radius: var(--border-radius-md);
    padding: 20px;
    margin-bottom: 30px;
    position: relative;
    border-left: 4px solid var(--brand-color);
}

.receipt-code-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 5px;
}

.receipt-code-value {
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 1px;
    word-break: break-all;
}

/* Price block */
.receipt-price-box {
    margin-top: auto;
    border-top: 2px solid var(--border-color);
    padding-top: 20px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.receipt-price-label {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.receipt-price-value {
    font-family: var(--font-headings);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--brand-color);
}

/* ==========================================================================
   ENERGY CALCULATOR / ROI HUB
   ========================================================================== */
.roi-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.roi-grid-container {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
}

.roi-inputs-panel {
    padding: 45px;
    border-right: 1px solid var(--border-color);
}

.roi-inputs-panel h3 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 30px;
    text-transform: uppercase;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 12px 18px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-canvas);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-input:focus {
    border-color: var(--brand-color);
    outline: none;
    background-color: var(--bg-card);
}

.roi-results-panel {
    padding: 45px;
    background-color: rgba(var(--primary-slate-rgb), 0.02);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

[data-theme="dark"] .roi-results-panel {
    background-color: rgba(0,0,0,0.1);
}

.roi-results-panel h3 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 30px;
    text-transform: uppercase;
}

.roi-indicators-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.roi-indicator-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 25px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.roi-indicator-box h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.roi-indicator-value {
    font-family: var(--font-headings);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent-green);
}

.roi-indicator-box.saving-co2 .roi-indicator-value {
    color: var(--accent-blue);
}

.payback-bar-wrapper {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 25px;
    margin-bottom: 30px;
}

.payback-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.payback-bar-outer {
    height: 12px;
    background-color: var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}

.payback-bar-inner {
    height: 100%;
    width: 65%;
    background-color: var(--accent-green);
    border-radius: 6px;
    transition: var(--transition-smooth);
}

/* ==========================================================================
   OPRAVY & SERVIS: VIBRODIAGNOSTIKA SERVICE LEDGER
   ========================================================================== */
.ledger-block {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.ledger-search-header {
    background-color: var(--primary-slate);
    color: #FFFFFF;
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 3px solid var(--brand-color);
}

.ledger-search-header-text h3 {
    color: #FFFFFF;
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.ledger-search-header-text p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

.ledger-search-box {
    display: flex;
    gap: 10px;
    width: 100%;
    max-width: 450px;
}

.ledger-search-input {
    flex: 1;
    padding: 12px 18px;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255,255,255,0.25);
    background-color: rgba(255,255,255,0.08);
    color: #FFFFFF;
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.ledger-search-input:focus {
    border-color: var(--brand-color);
    outline: none;
    background-color: rgba(255,255,255,0.15);
}

/* Ledger Dashboard Content */
.ledger-dashboard {
    padding: 45px;
    display: none;
    animation: fadeIn 0.5s ease-out;
}

.ledger-dashboard.active {
    display: block;
}

.ledger-dash-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 40px;
}

.ledger-dash-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 20px;
    margin-bottom: 30px;
}

.ledger-motor-meta h4 {
    font-size: 1.4rem;
    font-weight: 800;
}

.ledger-motor-meta p {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
}

.ledger-status-tag {
    padding: 6px 14px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Telemetry Gauges */
.ledger-telemetry-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.ledger-gauge-card {
    background-color: var(--bg-canvas);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 25px 20px;
    text-align: center;
}

.ledger-gauge-card label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.ledger-gauge-value {
    font-family: var(--font-headings);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
}

.ledger-gauge-value span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-left: 2px;
}

.ledger-gauge-status {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-top: 8px;
    color: var(--accent-green);
}

/* Custom Interactive Vibration Chart */
.ledger-chart-box {
    background-color: var(--bg-canvas);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 30px;
    margin-bottom: 40px;
}

.chart-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.chart-legend {
    display: flex;
    gap: 15px;
    font-size: 0.75rem;
    font-weight: 600;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.legend-color {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-color.before { background-color: var(--accent-red); }
.legend-color.after { background-color: var(--accent-green); }

.vibration-waves-container {
    height: 180px;
    position: relative;
    overflow: hidden;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
}

/* Diagnostic results */
.ledger-findings {
    background-color: var(--bg-canvas);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 30px;
}

.ledger-findings h5 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.ledger-findings p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.ledger-findings-list {
    list-style: none;
    font-size: 0.85rem;
}

.ledger-findings-list li {
    padding: 8px 0;
    border-bottom: 1px dashed var(--border-color);
    display: flex;
    justify-content: space-between;
}

/* Right sidebar: Repair protocols log */
.ledger-log-panel {
    background-color: rgba(var(--primary-slate-rgb), 0.02);
    padding: 35px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}

.ledger-log-panel h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.ledger-timeline-list {
    position: relative;
    padding-left: 25px;
}

.ledger-timeline-list::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 5px;
    bottom: 5px;
    width: 2px;
    background-color: var(--border-color);
}

.ledger-timeline-item {
    position: relative;
    margin-bottom: 25px;
}

.ledger-timeline-item::before {
    content: '';
    position: absolute;
    left: -25px;
    top: 4px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    border: 2px solid var(--bg-card);
}

.ledger-timeline-item.completed::before {
    background-color: var(--accent-green);
}

.ledger-timeline-date {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
}

.ledger-timeline-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 2px 0 5px;
}

.ledger-timeline-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.technician-signature-box {
    margin-top: 35px;
    border-top: 2px solid var(--border-color);
    padding-top: 25px;
}

.technician-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
}

.technician-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 2px;
}

.technician-stamp {
    font-family: 'Montserrat', sans-serif;
    font-weight: 900;
    font-size: 0.8rem;
    color: rgba(var(--brand-color-rgb), 0.45);
    border: 2px solid rgba(var(--brand-color-rgb), 0.4);
    display: inline-block;
    padding: 6px 12px;
    margin-top: 15px;
    transform: rotate(-3deg);
    border-radius: 4px;
    text-transform: uppercase;
}

/* ==========================================================================
   TECHNICAL LIBRARY
   ========================================================================== */
.library-grid {
    display: grid;
    grid-template-columns: 1.35fr 0.65fr;
    gap: 50px;
    margin-bottom: 50px;
}

.blog-articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.blog-item-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 35px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.blog-item-card:hover {
    transform: translateY(-5px);
    border-color: var(--brand-color);
    box-shadow: var(--shadow-lg);
}

.blog-item-meta {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--brand-color);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.blog-item-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.4;
}

.blog-item-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.blog-read-more {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--brand-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.blog-read-more:hover {
    color: var(--brand-color-hover);
}

/* Single Article Full View Overlay modal */
.article-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.article-modal.active {
    display: flex;
}

.article-modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    position: relative;
    padding: 50px;
}

.article-modal-close {
    position: absolute;
    top: 25px;
    right: 25px;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--text-muted);
    cursor: pointer;
}

.article-modal-close:hover {
    color: var(--brand-color);
}

.article-modal-body h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 25px;
    margin-top: 30px;
}

.article-modal-body h2:first-child {
    margin-top: 0;
}

.article-modal-body p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.article-modal-body ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.article-modal-body li {
    padding: 5px 0;
    font-size: 0.95rem;
}

/* Technical Glossary sidebar */
.glossary-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 35px;
    box-shadow: var(--shadow-sm);
}

.glossary-card h3 {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.glossary-search {
    margin-bottom: 25px;
}

.glossary-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 5px;
}

.glossary-item {
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 12px;
}

.glossary-item:last-child {
    border-bottom: none;
}

.glossary-item-term {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.glossary-item-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ==========================================================================
   ABOUT US SECTION
   ========================================================================== */
.about-split-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text-content h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.about-text-content p {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 25px;
}

.about-text-content ul {
    list-style: none;
    margin-bottom: 35px;
}

.about-text-content ul li {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-text-content ul li::before {
    content: '✓';
    color: var(--brand-color);
    font-weight: bold;
    font-size: 1.1rem;
}

/* Team Grid layout */
.about-team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin: 50px auto 0;
    max-width: 800px;
}

.team-profile-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.team-profile-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.team-profile-avatar-wrap {
    height: 180px;
    background-color: var(--primary-slate);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    font-family: var(--font-headings);
    font-weight: 900;
}

.team-profile-info {
    padding: 25px;
}

.team-profile-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 3px;
}

.team-profile-role {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--brand-color);
    display: block;
    margin-bottom: 12px;
}

.team-profile-desc {
    font-size: 0.8rem;
    line-height: 1.5;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-split-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 60px;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.contact-card-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 30px;
    box-shadow: var(--shadow-sm);
}

.contact-card-box h4 {
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

.contact-detail-row {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.contact-detail-row:last-child {
    margin-bottom: 0;
}

.contact-detail-icon {
    font-size: 1.2rem;
    color: var(--brand-color);
}

.contact-detail-text strong {
    display: block;
    color: var(--text-primary);
}

.contact-detail-text span {
    color: var(--text-secondary);
}

/* Contact form panel */
.contact-form-panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 50px;
    box-shadow: var(--shadow-xl);
}

.contact-form-panel h3 {
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.contact-form-panel p {
    font-size: 0.95rem;
    margin-bottom: 35px;
}

.form-grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
#site-footer {
    background-color: var(--primary-slate);
    color: rgba(255,255,255,0.65);
    padding: 80px 0 40px;
    border-top: 5px solid var(--brand-color);
    font-size: 0.85rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 60px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding-bottom: 50px;
    margin-bottom: 40px;
}

.footer-widget h3 {
    color: #FFFFFF;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 25px;
    font-weight: 700;
}

.footer-widget-logo img {
    height: 48px;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.footer-widget p {
    line-height: 1.6;
}

.footer-links-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links-list a {
    color: rgba(255,255,255,0.65);
    font-weight: 500;
}

.footer-links-list a:hover {
    color: var(--brand-color);
    padding-left: 5px;
}

.footer-contact-details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-contact-row {
    display: flex;
    gap: 12px;
}

.footer-contact-row span {
    color: var(--brand-color);
}

.footer-copyright {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: rgba(255,255,255,0.4);
}

.footer-copyright-links {
    display: flex;
    gap: 20px;
}

.footer-copyright-links a:hover {
    color: #FFFFFF;
}

/* ==========================================================================
   ANIMATIONS & TRANSITIONS
   ========================================================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1200px) {
    .hero-text h1 { font-size: 2.8rem; }
    .about-split-row { gap: 40px; }
}

@media (max-width: 992px) {
    section { padding: 75px 0; }
    
    #main-nav { display: none; } /* Standard Mobile hides standard nav */
    
    .nav-mobile-toggle { display: flex; }
    
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-text p { margin-left: auto; margin-right: auto; }
    
    .hero-actions-row { justify-content: center; }
    
    .hero-visual { height: 460px; }
    
    .bento-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .bento-large-2x {
        grid-column: span 2;
    }
    
    .config-layout {
        grid-template-columns: 1fr;
    }
    
    .config-steps-panel {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .roi-grid-container {
        grid-template-columns: 1fr;
    }
    
    .roi-inputs-panel {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .ledger-dash-grid {
        grid-template-columns: 1fr;
    }
    
    .library-grid {
        grid-template-columns: 1fr;
    }
    
    .about-split-row {
        grid-template-columns: 1fr;
    }
    
    .contact-split-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .container { padding: 0 20px; }
    
    .hero-text h1 { font-size: 2.3rem; }
    
    .bento-grid {
        grid-template-columns: 1fr;
    }
    
    .bento-large-2x {
        grid-column: span 1;
        flex-direction: column;
        height: auto;
        padding: 30px;
    }
    
    .bento-large-2x .bento-large-visual img {
        margin-top: 20px;
        max-height: 200px;
    }
    
    .blog-articles-grid {
        grid-template-columns: 1fr;
    }
    
    .about-team-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid-2col {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-copyright {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

/* ==========================================================================
   PHASE 2 ELABORATED HOMEPAGE STYLES (Credentials, Infographics, Upgrades)
   ========================================================================== */
.credentials-bar {
    background-color: var(--primary-slate);
    color: #FFFFFF;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 25px 0;
    font-family: var(--font-body);
}

.credentials-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}

.credentials-partner-logos {
    display: flex;
    align-items: center;
    gap: 15px;
    background-color: rgba(255, 255, 255, 0.04);
    padding: 10px 20px;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.cred-logo-siemens {
    height: 38px;
    width: auto;
    filter: brightness(0) invert(1);
    transition: var(--transition-smooth);
}

.cred-logo-siemens:hover {
    transform: scale(1.05);
}

.cred-logo-divider {
    width: 1px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.15);
}

.cred-logo-innomotics {
    height: 72px;
    width: auto;
    /* No invert filter – Innomotic.svg renders in its official brand colors (Power Gray + Lime) */
    transition: var(--transition-smooth);
}

.cred-logo-innomotics:hover {
    transform: scale(1.05);
}

.credentials-badge-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cred-icon {
    font-size: 1.5rem;
}

.cred-text {
    display: flex;
    flex-direction: column;
}

.cred-text strong {
    font-size: 0.85rem;
    font-weight: 700;
    color: #FFFFFF;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cred-text span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Hover effects for services and cases */
.service-column-card {
    transition: var(--transition-smooth);
}

.service-column-card:hover {
    transform: translateY(-5px);
    border-color: var(--brand-color) !important;
    box-shadow: var(--shadow-lg) !important;
}

.case-card {
    transition: var(--transition-smooth);
}

.case-card:hover {
    transform: translateY(-5px);
    border-color: var(--brand-color) !important;
    box-shadow: var(--shadow-lg) !important;
}

/* Efficiency Comparison Card */
.efficiency-chart-card {
    background-color: var(--bg-canvas); 
    border: 1px solid var(--border-color); 
    border-radius: var(--border-radius-lg); 
    padding: 40px; 
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
}

.efficiency-chart-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--brand-color);
}

/* Responsive adjustment for new homepage elements */
@media (max-width: 991px) {
    .credentials-flex {
        justify-content: center;
        gap: 25px;
    }
    .grid-2col {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
    }
    .services-columns-grid, .case-studies-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
    .case-card {
        height: auto !important;
    }
}

/* Premium Dropdown Language Selector */
.lang-dropdown {
    position: relative;
    display: inline-block;
}

.lang-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    backdrop-filter: blur(10px);
}

.lang-dropdown-trigger:hover {
    border-color: var(--brand-color);
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.04);
}

.lang-dropdown.active .lang-dropdown-trigger {
    border-color: var(--brand-color);
    color: var(--text-primary);
}

.lang-dropdown.active .chevron-icon {
    transform: rotate(180deg);
}

.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 110px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(20px);
}

.lang-dropdown.active .lang-dropdown-menu {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.lang-dropdown-menu .lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    justify-content: flex-start;
    padding: 8px 12px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.lang-dropdown-menu .lang-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--brand-color);
}

.lang-dropdown-menu .lang-btn.active {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--brand-color);
    font-weight: 700;
    border-color: rgba(37, 99, 235, 0.15);
}

.lang-dropdown svg, .lang-dropdown-menu svg {
    border-radius: 2px;
    flex-shrink: 0;
}