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

/* ==========================================================================
   DESIGN SYSTEM - CSS VARIABLES (SATI GROUP ORANGE BRANDING)
   ========================================================================== */
:root {
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Theme Accents (Shared Brand Orange & Tech Cyan/Green) */
    --color-primary: #ff7e15;
    --color-primary-rgb: 255, 126, 21;
    --color-orange: #ff7e15;
    --color-cyan: #0ea5e9;
    --color-emerald: #10b981;
    --color-navy: #1e3a8a;
    --color-yellow: #f59e0b;
    
    /* Gradients */
    --grad-primary: linear-gradient(135deg, #ff7e15 0%, #ffaa44 100%);
    --grad-dc: linear-gradient(135deg, #ff7e15 0%, #10b981 100%);
    --grad-dark-overlay: linear-gradient(180deg, rgba(11, 15, 25, 0.4) 0%, rgba(11, 15, 25, 0.9) 100%);
    --grad-rainbow: linear-gradient(90deg, #ff7e15, #ffaa44, #10b981, #0ea5e9, #ff7e15);

    /* Animation Timings */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Spacing & Layout */
    --header-height: 80px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
}

/* SLEEK LIGHT THEME (DEFAULT FOR PREMIUM CORPORATE LAYOUT) */
:root, [data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #ffffff;
    --bg-glass-nav: rgba(255, 255, 255, 0.95);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border-color: rgba(15, 23, 42, 0.08);
    --border-hover: rgba(var(--color-primary-rgb), 0.4);
    
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 10px 30px rgba(var(--color-primary-rgb), 0.12);
    --shadow-cooling-glow: 0 10px 30px rgba(16, 185, 129, 0.08);
    
    --glass-blur: blur(12px);
    --color-grid-line: rgba(var(--color-primary-rgb), 0.02);
}

/* SLEEK DARK THEME */
[data-theme="dark"] {
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-card-hover: rgba(20, 30, 48, 0.85);
    --bg-glass-nav: rgba(11, 15, 25, 0.8);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(var(--color-primary-rgb), 0.4);
    
    --shadow-card: 0 12px 40px -12px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 30px rgba(var(--color-primary-rgb), 0.25);
    --shadow-cooling-glow: 0 0 30px rgba(16, 185, 129, 0.2);
    
    --glass-blur: blur(12px);
    --color-grid-line: rgba(255, 255, 255, 0.03);
}

/* ==========================================================================
   BASE STYLES & RESET
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

p {
    color: var(--text-secondary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: #ff8f3d;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

/* Scrollbar customization */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border: 2px solid var(--bg-primary);
    border-radius: var(--border-radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ==========================================================================
   UTILITY CLASSES & DESIGN TOKENS
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-gradient-primary {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.glass-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    gap: 8px;
}

.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}

.btn-primary:hover {
    background: #e56b00;
    box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.5);
    transform: translateY(-2px);
    color: #ffffff;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-secondary);
    transform: translateY(-2px);
}

.btn-outline-orange {
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline-orange:hover {
    background: rgba(var(--color-primary-rgb), 0.1);
    box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.3);
    transform: translateY(-2px);
}

/* ==========================================================================
   NAVIGATION HEADER
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    display: flex;
    align-items: center;
    z-index: 1000;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.02);
    transition: background-color var(--transition-normal), border-bottom var(--transition-normal), height var(--transition-normal);
}

.header.sticky {
    height: 70px;
    background-color: #ffffff;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 22px;
    color: var(--text-primary);
}

.logo svg {
    width: 38px;
    height: 38px;
    filter: drop-shadow(0 0 8px rgba(var(--color-primary-rgb), 0.4));
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-text span {
    font-size: 20px;
    font-weight: 800;
}

.logo-sub {
    font-size: 9px;
    letter-spacing: 1px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-weight: 600;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 14px;
    text-transform: uppercase;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-normal);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Lang Dropdown */
.lang-selector {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.lang-selector:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* Theme Toggle */
.theme-toggle {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.theme-toggle:hover {
    color: var(--color-primary);
    border-color: var(--border-hover);
    transform: scale(1.05);
}

.theme-toggle .sun-icon {
    display: none;
}
.theme-toggle .moon-icon {
    display: block;
}

[data-theme="light"] .theme-toggle .sun-icon {
    display: block;
}
[data-theme="light"] .theme-toggle .moon-icon {
    display: none;
}

.mobile-nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.hamburger-line {
    display: block;
    width: 26px;
    height: 2.5px;
    background-color: var(--text-primary);
    margin: 6px auto;
    transition: all var(--transition-normal);
}

/* ==========================================================================
   HERO SECTION (DARK TECH DATA CENTER VIBE)
   ========================================================================== */
.hero {
    min-height: 100vh;
    padding-top: var(--header-height);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background-image: var(--grad-dark-overlay), url('assets/hero_bg.png');
    background-size: cover;
    background-position: center;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 2;
}

.hero-container {
    position: relative;
    z-index: 10;
    width: 100%;
}

.hero-content {
    max-width: 780px;
    margin-bottom: 50px;
}

.hero-tag {
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 13px;
    color: var(--color-primary);
    margin-bottom: 16px;
    display: inline-block;
}

.hero-title {
    font-size: clamp(34px, 5.5vw, 64px);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 24px;
    line-height: 1.15;
    color: #ffffff;
}

.hero-title span {
    color: var(--color-primary);
}

.hero-desc {
    font-size: 18px;
    margin-bottom: 36px;
    color: #e2e8f0;
    line-height: 1.6;
}

.hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero Pillars Bottom Bar */
.hero-pillars {
    position: relative;
    z-index: 10;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(11, 15, 25, 0.6);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 24px 0;
    margin-top: auto;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.pillar-item {
    display: flex;
    align-items: center;
    gap: 16px;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
    padding-right: 24px;
}

.pillar-item:last-child {
    border-right: none;
    padding-right: 0;
}

.pillar-icon {
    font-size: 24px;
    color: var(--color-primary);
}

.pillar-text h3 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
}

/* ==========================================================================
   DOUBLE SECTION COLUMNS GRID (SOLUTIONS & ESG SIDE-BY-SIDE)
   ========================================================================== */
.double-section {
    padding: 100px 0;
    position: relative;
    background: #ffffff;
}

.double-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 40px;
}

.col-header {
    margin-bottom: 32px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.col-tag {
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 13px;
    color: var(--color-primary);
    margin-bottom: 8px;
    display: block;
}

.col-title {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.col-link {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* 4-Columns Card Grid for Solutions Blocks with Illustrative Images */
.solutions-section {
    padding: 100px 0;
    background: #ffffff;
}

.solutions-blocks-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.solution-block-card {
    display: flex;
    flex-direction: column;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    overflow: hidden;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.solution-block-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.solution-block-img-wrap {
    width: 100%;
    height: 160px;
    overflow: hidden;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
    background: #0f172a;
}

.solution-block-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.solution-block-card:hover .solution-block-img {
    transform: scale(1.05);
}

.solution-block-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex-grow: 1;
    min-height: 280px;
}

.solution-block-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.solution-block-icon {
    font-size: 20px;
    color: var(--color-primary);
}

.solution-block-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.solution-block-summary {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 16px;
}

.solution-block-bullets {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.solution-block-bullet {
    font-size: 12px;
    color: var(--text-secondary);
    position: relative;
    padding-left: 12px;
}

.solution-block-bullet::before {
    content: '';
    position: absolute;
    left: 0;
    top: 7px;
    width: 4px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 50%;
}

.btn-solution-link {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition-fast);
}

.btn-solution-link:hover {
    color: #e04b00;
}

/* ESG columns horizontal representation (Full-Width Row) */
.commitment-section {
    padding: 100px 0;
    background: #f8fafc;
    border-top: 1px solid var(--border-color);
}

.esg-column-box {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.esg-card {
    padding: 24px;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(0, 0, 0, 0.05);
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    transition: all var(--transition-normal);
    position: relative;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.esg-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm);
}

.esg-environmental {
    background: #ffffff;
}
.esg-environmental::before {
    background: var(--color-emerald);
}
.esg-environmental .esg-card-icon {
    color: var(--color-emerald);
}

.esg-social {
    background: #ffffff;
}
.esg-social::before {
    background: var(--color-primary);
}
.esg-social .esg-card-icon {
    color: var(--color-primary);
}

.esg-governance {
    background: #ffffff;
}
.esg-governance::before {
    background: var(--color-cyan);
}
.esg-governance .esg-card-icon {
    color: var(--color-cyan);
}

.esg-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.esg-card-icon {
    font-size: 22px;
}

.esg-card-title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.esg-card-bullets {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    z-index: 2;
}

.esg-bullet {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.esg-bullet::before {
    content: '›';
    font-size: 14px;
    font-weight: bold;
    color: var(--text-muted);
}

.esg-card-graphic {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: auto;
    max-height: 60px;
    pointer-events: none;
    z-index: 1;
    transition: transform var(--transition-normal);
}

.esg-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.esg-card:hover .esg-card-graphic {
    transform: translateY(-4px) scale(1.02);
}

/* ==========================================================================
   IMPACT & FEATURED PROJECTS SECTION (SPLIT SCREEN ROW)
   ========================================================================== */
.impact-projects {
    padding: 100px 0;
    background: #ffffff;
}

.split-row {
    display: grid;
    grid-template-columns: 0.7fr 1.3fr;
    gap: 40px;
}

/* Impact numbers styling matching mockup with warm sand background */
.impact-box {
    display: flex;
    flex-direction: column;
    background: #FAF7F2;
    padding: 30px;
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(var(--color-primary-rgb), 0.04);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 24px;
}

.impact-card {
    padding: 20px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.04);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.01);
    transition: all var(--transition-normal);
}

.impact-card-icon {
    font-size: 20px;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.impact-num {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 28px;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: 4px;
}

.impact-label {
    font-size: 11px;
    color: var(--text-secondary);
}

.impact-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* Featured projects list slider matching mockup horizontally */
.projects-slider-wrap {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.projects-slider-grid {
    display: flex;
    gap: 16px;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.proj-card {
    flex: 0 0 calc(25% - 12px);
    min-width: 170px;
    height: 250px;
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    cursor: pointer;
}

.proj-card-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform var(--transition-slow);
}

.proj-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 30%, rgba(0, 0, 0, 0.8) 100%);
    z-index: 2;
}

.proj-card-content {
    position: absolute;
    bottom: 16px;
    left: 16px;
    right: 16px;
    z-index: 10;
}

.proj-card-tag {
    font-size: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    background: #ffffff;
    padding: 3px 6px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 6px;
}

.proj-card-title {
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 2px;
}

.proj-card-location {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.7);
}

.proj-card:hover .proj-card-bg {
    transform: scale(1.05);
}

/* Slider Controls matching bottom right mockup position */
.slider-nav {
    display: flex;
    gap: 12px;
    margin-top: 16px;
    align-self: flex-end;
}

.slider-nav-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: #ffffff;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.slider-nav-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.05);
}

/* ==========================================================================
   PARTNER BRAND CAROUSEL (LOOP)
   ========================================================================== */
.partners {
    padding: 60px 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.partners-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.partners-tag {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.partners-scroll-box {
    overflow: hidden;
    width: 100%;
}

.partners-track {
    display: flex;
    width: max-content;
    gap: 60px;
    animation: infiniteScroll 25s linear infinite;
}

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.9;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.partner-logo:hover {
    opacity: 1;
    transform: scale(1.05);
}

/* ==========================================================================
   INTERACTIVE SIZING ESTIMATOR (QUOTE BUILDER)
   ========================================================================== */
.calculator {
    padding: 100px 0;
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-top: 50px;
}

.calc-form-container {
    padding: 40px;
}

.calc-group {
    margin-bottom: 32px;
}

.calc-label-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.calc-label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 16px;
}

.calc-value {
    color: var(--color-primary);
    font-weight: 700;
    font-size: 18px;
    font-family: var(--font-heading);
}

.slider-input {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 5px;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.slider-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: 0 0 10px rgba(var(--color-primary-rgb), 0.4);
    transition: transform var(--transition-fast);
}

.slider-input::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.calc-radio-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.calc-radio-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.01);
    transition: all var(--transition-normal);
}

.calc-radio-card i {
    font-size: 24px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.calc-radio-card.active {
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.05);
    box-shadow: var(--shadow-glow);
}

.calc-radio-card.active i {
    color: var(--color-primary);
}

.calc-radio-card h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.calc-radio-card p {
    font-size: 12px;
}

.calc-results-container {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    border-color: var(--color-primary);
}

.calc-results-header h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.calc-results-header p {
    font-size: 14px;
    margin-bottom: 24px;
}

.result-specs {
    background: rgba(0, 0, 0, 0.15);
    border-radius: var(--border-radius-md);
    padding: 24px;
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
}

[data-theme="light"] .result-specs {
    background: rgba(0, 0, 0, 0.02);
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.spec-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.spec-val {
    font-weight: 600;
    font-size: 14px;
}

.result-architecture-box {
    text-align: center;
    border: 1px dashed var(--border-color);
    padding: 30px;
    border-radius: var(--border-radius-md);
}

.result-architecture-box i {
    font-size: 38px;
    color: var(--color-primary);
    margin-bottom: 12px;
    animation: floating 4s infinite ease-in-out;
}

.result-architecture-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 4px;
}

.result-architecture-desc {
    font-size: 13px;
    color: var(--text-muted);
}

/* ==========================================================================
   CONTACT SECTION & LOCATION
   ========================================================================== */
.contact {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 48px;
}

.contact-info-column {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
    background: rgba(var(--color-primary-rgb), 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-card-content h4 {
    font-size: 18px;
    margin-bottom: 4px;
}

.contact-card-content p {
    font-size: 15px;
}

.map-container {
    width: 100%;
    height: 280px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-card);
    background: var(--bg-primary);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    position: relative;
    background-image: linear-gradient(rgba(var(--color-primary-rgb), 0.03) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(var(--color-primary-rgb), 0.03) 1px, transparent 1px);
    background-size: 20px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.map-placeholder svg {
    width: 60px;
    height: 60px;
    color: var(--color-primary);
    filter: drop-shadow(0 0 10px rgba(var(--color-primary-rgb), 0.4));
    animation: floating 3s infinite ease-in-out;
}

.map-placeholder span {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.5px;
}

.contact-form-card {
    padding: 40px;
}

.form-title {
    font-size: 24px;
    margin-bottom: 24px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 14px;
}

.form-control {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 14px 18px;
    color: var(--text-primary);
    font-size: 15px;
    transition: all var(--transition-fast);
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

textarea.form-control {
    resize: none;
    min-height: 120px;
}

.submit-feedback {
    display: none;
    margin-top: 16px;
    padding: 14px 20px;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 500;
    animation: tabFadeIn 0.3s forwards;
}

.submit-feedback.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-emerald);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.submit-feedback.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ==========================================================================
   FOOTER SECTION
   ========================================================================== */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 30px 0;
    font-size: 15px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 22px;
    color: var(--text-primary);
}

.footer-logo svg {
    width: 34px;
    height: 34px;
}

.footer-desc {
    color: var(--text-secondary);
    max-width: 320px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-btn:hover {
    color: #ffffff;
    background: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-links a {
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 14px;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: var(--text-muted);
}

.footer-bottom-links a:hover {
    color: var(--text-primary);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #ffffff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: #e56b00;
    box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.6);
    transform: translateY(-3px);
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes floating {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

@keyframes slowFloat {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes floatGlow {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -20px) scale(1.1); }
    100% { transform: translate(-20px, 40px) scale(0.9); }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(var(--color-primary-rgb), 0.4); }
    50% { box-shadow: 0 0 15px 4px rgba(var(--color-primary-rgb), 0.2); }
}

@keyframes infiniteScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-50% - 30px)); }
}

@keyframes tabFadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 1024px) {
    .double-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .solutions-blocks-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .esg-column-box {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .split-row {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .calculator-wrapper {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .mobile-nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--bg-primary);
        flex-direction: column;
        padding: 40px 24px;
        gap: 24px;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        border-top: 1px solid var(--border-color);
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-menu.open {
        transform: translateX(0);
    }
    
    .nav-actions {
        margin-top: auto;
        width: 100%;
        justify-content: center;
        flex-direction: column;
        gap: 16px;
    }
    
    .theme-toggle {
        width: 100%;
        border-radius: var(--border-radius-sm);
    }
    
    .mobile-nav-toggle.open .hamburger-line:nth-child(1) {
        transform: translateY(8.5px) rotate(45deg);
    }
    
    .mobile-nav-toggle.open .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-nav-toggle.open .hamburger-line:nth-child(3) {
        transform: translateY(-8.5px) rotate(-45deg);
    }
    
    .solutions-blocks-grid {
        grid-template-columns: 1fr;
    }
    .esg-column-box {
        grid-template-columns: 1fr;
    }
    .esg-card-bullets {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .form-group.full-width {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    .pillars-grid {
        grid-template-columns: 1fr;
    }
    .impact-grid {
        grid-template-columns: 1fr;
    }
    .projects-slider-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}