/* ============================================
   SUNGLARE ENERGY - MASTER STYLESHEET v3.0
   Dark/Light Theme + RTL + Multi-Page
   Mobile-First Responsive + SEO Optimized
   ============================================ */

:root {
    --midnight: #020617;
    --deep-galaxy: #1E4D92;
    --electric-cyan: #38BDF8;
    --solar-gold: #F59E0B;
    --cloud-white: #F8FAFC;
    --text-secondary: #94A3B8;
    --glass-border: rgba(56, 189, 248, 0.15);
    --glass-blur: 8px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Outfit', sans-serif;
    --font-secondary: 'Inter', sans-serif;
}

/* --- DARK THEME --- */
.dark-theme {
    --bg-primary: #020617;
    --bg-secondary: #0B1120;
    --bg-card: rgba(2, 6, 23, 0.6);
    --bg-card-hover: rgba(2, 6, 23, 0.8);
    --text-primary: #F8FAFC;
    --text-muted: #94A3B8;
    --border-color: rgba(56, 189, 248, 0.12);
    --nav-bg: rgba(2, 6, 23, 0.85);
    --glass-bg: rgba(2, 6, 23, 0.5);
    --input-bg: rgba(56, 189, 248, 0.04);
    --grid-opacity: 0.03;
}

/* --- LIGHT THEME --- */
.light-theme {
    --bg-primary: #F0F4F8;
    --bg-secondary: #E2E8F0;
    --bg-card: rgba(255, 255, 255, 0.8);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --text-primary: #0F172A;
    --text-muted: #475569;
    --border-color: rgba(30, 77, 146, 0.12);
    --nav-bg: rgba(240, 244, 248, 0.9);
    --glass-bg: rgba(255, 255, 255, 0.6);
    --input-bg: rgba(30, 77, 146, 0.04);
    --grid-opacity: 0.02;
}

.light-theme .nav-logo-text,
.light-theme .footer-logo-text {
    background: linear-gradient(135deg, var(--deep-galaxy), var(--electric-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.light-theme .nav-toggle span {
    background: var(--text-primary);
}

.light-theme .icon-sun {
    display: none;
}

.light-theme .icon-moon {
    display: block;
}

.dark-theme .icon-sun {
    display: block;
}

.dark-theme .icon-moon {
    display: none;
}

.light-theme .hero-video-overlay {
    background: linear-gradient(180deg, rgba(240, 244, 248, 0.6) 0%, rgba(240, 244, 248, 0.8) 50%, rgba(240, 244, 248, 0.98) 100%),
        linear-gradient(135deg, rgba(30, 77, 146, 0.1) 0%, transparent 60%);
}

/* --- Reset --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scrollbar-width: thin;
    scrollbar-color: var(--deep-galaxy) var(--bg-primary);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-secondary);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background 0.4s ease, color 0.4s ease;
}

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--deep-galaxy);
    border-radius: 3px;
}

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

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

/* --- RTL Support --- */
.rtl {
    direction: rtl;
    text-align: right;
}

.rtl .nav-links {
    direction: ltr;
}

.rtl .footer-links-group a:hover {
    padding-left: 0;
    padding-right: 4px;
}

/* --- Preloader --- */
#preloader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s, visibility 0.6s;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.preloader-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 50%;
    animation: preloaderPulse 1.5s ease-in-out infinite;
}

@keyframes preloaderPulse {

    0%,
    100% {
        transform: scale(1);
        filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.3))
    }

    50% {
        transform: scale(1.08);
        filter: drop-shadow(0 0 24px rgba(56, 189, 248, 0.6))
    }
}

.preloader-bar {
    width: 200px;
    height: 3px;
    background: rgba(56, 189, 248, 0.15);
    border-radius: 2px;
    overflow: hidden;
}

.preloader-progress {
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--electric-cyan), var(--solar-gold));
    border-radius: 2px;
    animation: preloaderFill 1.8s ease forwards;
}

@keyframes preloaderFill {
    to {
        width: 100%
    }
}

/* --- Grid BG --- */
.grid-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: var(--grid-opacity);
    background-image: linear-gradient(rgba(56, 189, 248, 0.5) 1px, transparent 1px), linear-gradient(90deg, rgba(56, 189, 248, 0.5) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    to {
        transform: translate(60px, 60px)
    }
}

/* --- Container & Section --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    position: relative;
    z-index: 1;
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-primary);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--electric-cyan);
    background: rgba(56, 189, 248, 0.08);
    padding: 6px 18px;
    border-radius: 100px;
    border: 1px solid rgba(56, 189, 248, 0.15);
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-title.left-align {
    text-align: left;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* --- Navigation --- */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition-base);
    background: transparent;
}

#navbar.scrolled {
    background: var(--nav-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
}

.nav-logo-img {
    height: 52px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-base);
    filter: drop-shadow(0 0 4px rgba(56, 189, 248, 0.15));
}

.nav-logo:hover .nav-logo-img {
    filter: drop-shadow(0 0 12px rgba(56, 189, 248, 0.35));
    transform: scale(1.05);
}

.nav-logo-text {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: 2px;
    background: linear-gradient(135deg, var(--cloud-white), var(--electric-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 6px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(56, 189, 248, 0.08);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 2px;
    background: var(--electric-cyan);
    border-radius: 1px;
}

/* --- Nav Controls --- */
.nav-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-cta {
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--solar-gold), #D97706);
    color: var(--midnight);
    transition: var(--transition-base);
    letter-spacing: 0.5px;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}

/* --- Theme Toggle --- */
.theme-toggle {
    width: 38px;
    height: 38px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transition: var(--transition-base);
}

.theme-toggle:hover {
    border-color: var(--electric-cyan);
    background: rgba(56, 189, 248, 0.08);
}

/* --- Language Switcher --- */
.lang-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    cursor: pointer;
    color: var(--text-primary);
    font-family: var(--font-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition-base);
}

.lang-btn:hover {
    border-color: var(--electric-cyan);
}

#langFlag {
    font-size: 1.1rem;
    line-height: 1;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 160px;
    background: var(--nav-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition-base);
    z-index: 100;
}

.lang-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 8px 14px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-muted);
    font-family: var(--font-secondary);
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    text-align: left;
}

.lang-option:hover {
    background: rgba(56, 189, 248, 0.08);
    color: var(--text-primary);
}

.lang-option.active {
    color: var(--electric-cyan);
    background: rgba(56, 189, 248, 0.06);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px)
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px)
}

/* --- Hero --- */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video-wrapper {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-video-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(2, 6, 23, 0.55) 0%, rgba(2, 6, 23, 0.7) 50%, rgba(2, 6, 23, 0.95) 100%), linear-gradient(135deg, rgba(30, 77, 146, 0.15) 0%, transparent 60%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
    animation: heroFadeIn 1.2s ease 0.5s both;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(40px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    color: var(--electric-cyan);
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.15);
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: 28px;
    backdrop-filter: blur(8px);
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--electric-cyan);
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {

    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.4)
    }

    50% {
        opacity: 0.6;
        box-shadow: 0 0 0 6px rgba(56, 189, 248, 0)
    }
}

.hero-title {
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--cloud-white);
}

.hero-gradient-text {
    background: linear-gradient(135deg, var(--solar-gold), var(--electric-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}

/* --- Page Hero (inner pages) --- */
.page-hero {
    padding: 160px 0 80px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.page-hero .section-title {
    margin-top: 16px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition-base);
    letter-spacing: 0.3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--solar-gold), #D97706);
    color: var(--midnight);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(245, 158, 11, 0.35);
}

.btn-glass {
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.2);
    color: var(--cloud-white);
    backdrop-filter: blur(8px);
}

.btn-glass:hover {
    background: rgba(56, 189, 248, 0.12);
    border-color: var(--electric-cyan);
    transform: translateY(-3px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

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

.btn-outline:hover {
    border-color: var(--electric-cyan);
    color: var(--electric-cyan);
    transform: translateY(-2px);
}

/* --- Hero Stats --- */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    padding: 32px 40px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-number {
    font-family: var(--font-primary);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--cloud-white);
}

.stat-suffix {
    font-family: var(--font-primary);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--electric-cyan);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.hero-stat-divider {
    width: 1px;
    height: 48px;
    background: linear-gradient(180deg, transparent, var(--border-color), transparent);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0.6;
    animation: scrollFloat 2s ease-in-out infinite;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, var(--electric-cyan), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollFloat {

    0%,
    100% {
        transform: translate(-50%, 0)
    }

    50% {
        transform: translate(-50%, 8px)
    }
}

@keyframes scrollPulse {

    0%,
    100% {
        opacity: 0.3
    }

    50% {
        opacity: 1
    }
}

.hero-scroll-indicator span {
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-secondary);
}

/* --- Services --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.service-card {
    position: relative;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    overflow: hidden;
    transition: var(--transition-slow);
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(56, 189, 248, 0.3);
    box-shadow: 0 16px 48px rgba(56, 189, 248, 0.08);
}

.service-card.featured {
    border-color: rgba(245, 158, 11, 0.25);
}

.service-card.featured:hover {
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: 0 16px 48px rgba(245, 158, 11, 0.1);
}

.service-glow {
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.08), transparent 70%);
    pointer-events: none;
    transition: var(--transition-slow);
    opacity: 0;
}

.service-card.featured .service-glow {
    background: radial-gradient(circle, rgba(245, 158, 11, 0.1), transparent 70%);
}

.service-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 100px;
    background: linear-gradient(135deg, var(--solar-gold), #D97706);
    color: var(--midnight);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.12);
    margin-bottom: 24px;
    transition: var(--transition-base);
}

.service-icon svg {
    color: var(--electric-cyan);
}

.service-card:hover .service-icon {
    background: rgba(56, 189, 248, 0.12);
    border-color: rgba(56, 189, 248, 0.25);
    box-shadow: 0 0 24px rgba(56, 189, 248, 0.1);
}

.service-card.featured .service-icon {
    background: rgba(245, 158, 11, 0.06);
    border-color: rgba(245, 158, 11, 0.12);
}

.service-card.featured .service-icon svg {
    color: var(--solar-gold);
}

.service-title {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.service-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-features span {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 100px;
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.1);
    color: var(--electric-cyan);
}

.service-card.featured .service-features span {
    background: rgba(245, 158, 11, 0.06);
    border-color: rgba(245, 158, 11, 0.1);
    color: var(--solar-gold);
}

/* --- Project Filters --- */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 20px;
    border: 1px solid var(--border-color);
    border-radius: 100px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-base);
}

.filter-btn:hover {
    border-color: var(--electric-cyan);
    color: var(--electric-cyan);
}

.filter-btn.active {
    background: var(--electric-cyan);
    color: var(--midnight);
    border-color: var(--electric-cyan);
}

/* --- Projects --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.project-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    transition: var(--transition-slow);
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0);
}

.project-card:not(.visible) {
    transform: translateY(20px);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(56, 189, 248, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.project-image {
    position: relative;
    height: 160px;
    overflow: hidden;
}

.project-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 20px;
    background: linear-gradient(180deg, transparent 40%, rgba(2, 6, 23, 0.7) 100%);
}

.project-capacity {
    font-family: var(--font-primary);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--solar-gold);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.project-info {
    padding: 16px;
}

.project-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.project-location {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.project-location svg {
    color: var(--electric-cyan);
    flex-shrink: 0;
}

.project-year {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 100px;
    background: rgba(56, 189, 248, 0.08);
    color: var(--electric-cyan);
}

.project-title {
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.project-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    /* Truncate long descriptions on mobile */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.project-tags span {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 100px;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.15);
    color: var(--solar-gold);
}

/* --- About --- */
.about-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.about-feature-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.15);
    color: var(--electric-cyan);
}

.about-feature h4 {
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.about-feature p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.about-visual {
    display: flex;
    justify-content: center;
    position: relative;
}

.about-card-stack {
    position: relative;
    width: 320px;
    height: 400px;
}

.about-glass-card {
    position: absolute;
    width: 240px;
    padding: 28px 24px;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    transition: var(--transition-slow);
}

.about-glass-card:hover {
    transform: translateY(-6px) !important;
    box-shadow: 0 16px 48px rgba(56, 189, 248, 0.12);
    border-color: rgba(56, 189, 248, 0.3);
}

.card-1 {
    top: 0;
    left: 0;
    z-index: 3
}

.card-2 {
    top: 100px;
    right: 0;
    z-index: 2
}

.card-3 {
    top: 230px;
    left: 20px;
    z-index: 1
}

.card-icon-circle {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.15);
    color: var(--electric-cyan);
    margin-bottom: 4px;
}

.card-stat {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.card-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --- Contact --- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: flex-start;
}

.contact-desc {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 36px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-item-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.12);
    color: var(--electric-cyan);
}

.contact-item-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-item-value {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-word;
}

/* --- Contact Form --- */
.contact-form-wrapper {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 40px;
}

.form-title {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 28px;
    text-align: center;
    color: var(--text-primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    outline: none;
    transition: var(--transition-fast);
    /* Prevent iOS zoom on focus */
    font-size: 16px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.5;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--electric-cyan);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.08);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* --- Form Success --- */
.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.form-success.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(16px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.form-success-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: rgba(56, 189, 248, 0.08);
    border: 2px solid var(--electric-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--electric-cyan);
}

.form-success h3 {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-success p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* --- Footer --- */
#footer {
    position: relative;
    z-index: 1;
    padding-top: 80px;
    border-top: 1px solid var(--border-color);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--border-color);
}

.footer-logo-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo-img {
    height: 60px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 4px rgba(56, 189, 248, 0.15));
}

.footer-logo-text {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: 2px;
    background: linear-gradient(135deg, var(--cloud-white), var(--electric-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 280px;
}

.footer-links-group h4 {
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--text-primary);
}

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

.footer-links-group li,
.footer-links-group a {
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0 40px;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

.social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.1);
    color: var(--text-muted);
    transition: var(--transition-base);
}

.social-link:hover {
    color: var(--electric-cyan);
    border-color: var(--electric-cyan);
    transform: translateY(-3px);
}

/* --- Center Section Btn --- */
.section-cta-center {
    text-align: center;
    margin-top: 48px;
}

/* --- AOS & Visibility --- */
[data-aos] {
    opacity: 1;
    /* Default to visible */
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, opacity;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
    opacity: 0;
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
    opacity: 0;
}

[data-aos="fade-left"] {
    transform: translateX(30px);
    opacity: 0;
}

[data-aos].aos-animate {
    opacity: 1 !important;
    transform: translate(0, 0) !important;
}

/* Fallback for when JS/Observer fails or is slow */
.no-js [data-aos],
[data-aos].aos-animate {
    opacity: 1 !important;
    transform: translate(0, 0) !important;
}

/* --- Particles --- */
.particle {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    animation: particleFloat linear infinite
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0
    }

    10% {
        opacity: 0.3
    }

    90% {
        opacity: 0.3
    }

    100% {
        transform: translateY(-10vh) scale(1);
        opacity: 0
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* --- Tablet landscape (max 1024px) --- */
@media(max-width: 1024px) {
    .container {
        padding: 0 32px;
    }

    .about-wrapper,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-visual {
        order: -1;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-top {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

/* --- Tablet portrait & mobile (max 768px) --- */
@media(max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .container {
        padding: 0 20px;
    }

    /* --- Navigation Mobile --- */
    /* Always give navbar a solid background on mobile so it doesn't overlap content */
    #navbar {
        background: var(--bg-primary);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-color);
        padding: 10px 0;
    }

    #navbar.scrolled {
        background: var(--bg-primary);
    }

    .nav-logo-img {
        height: 36px;
    }

    .nav-logo-text {
        font-size: 0.9rem;
        letter-spacing: 1px;
    }

    /* Show hamburger menu */
    .nav-toggle {
        display: flex;
    }

    /* Hide CTA on mobile nav */
    .nav-cta {
        display: none;
    }

    /* Mobile nav overlay - fully opaque solid background */
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 8px;
        z-index: 999;
        padding: 100px 40px 60px;
        overflow-y: auto;
    }

    .nav-links.show {
        display: flex;
    }

    .nav-links li {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .nav-links .nav-link {
        font-size: 1.15rem;
        color: var(--text-primary);
        width: 100%;
        text-align: center;
        padding: 14px 20px;
        border-radius: var(--radius-sm);
        display: block;
        border: 1px solid transparent;
        transition: var(--transition-fast);
    }

    .nav-links .nav-link:hover,
    .nav-links .nav-link.active {
        background: rgba(56, 189, 248, 0.08);
        border-color: var(--border-color);
    }

    .nav-links .nav-link.active::after {
        display: none;
    }

    /* Nav controls reorder for mobile */
    .nav-controls {
        gap: 8px;
    }

    .lang-btn span:not(#langFlag) {
        display: none;
    }

    .lang-btn {
        padding: 6px 10px;
    }

    /* Dropdown chevron arrow also hidden when lang label is hidden */
    .lang-btn svg {
        display: none;
    }

    /* --- Hero Mobile --- */
    #hero {
        min-height: 100vh;
        min-height: 100dvh;
        display: block;
        /* Robust block layout */
        padding-top: 0;
        padding-bottom: 40px;
    }

    .hero-content {
        padding: 0 20px;
        padding-top: 140px;
        /* Reliable header clearance */
        margin-top: 0;
        text-align: center;
    }

    .hero-title {
        font-size: 1.75rem;
        margin-bottom: 16px;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 0.9rem;
        margin-bottom: 24px;
        line-height: 1.6;
    }

    .hero-badge {
        font-size: 0.7rem;
        padding: 6px 14px;
        margin-bottom: 20px;
    }

    .hero-actions {
        margin-bottom: 32px;
        gap: 12px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
        padding: 20px 16px;
        width: 100%;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .stat-suffix {
        font-size: 1rem;
    }

    .hero-stat-divider {
        width: 40px;
        height: 1px;
        background: var(--border-color);
        margin: 0 auto;
        display: block;
    }

    .hero-scroll-indicator {
        display: none;
    }

    /* --- Page Hero Mobile --- */
    .page-hero {
        padding: 100px 0 40px;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .section-title {
        font-size: 1.75rem;
        margin-bottom: 12px;
    }

    .section-desc {
        font-size: 0.95rem;
        line-height: 1.6;
    }

    .section-tag {
        font-size: 0.7rem;
        padding: 5px 14px;
        letter-spacing: 2px;
        margin-bottom: 16px;
    }

    /* --- Grids Mobile --- */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* --- Contact Form Mobile --- */
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .contact-form-wrapper {
        padding: 28px 20px;
        border-radius: var(--radius-lg);
    }

    /* --- Footer Mobile --- */
    .footer-top {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 32px;
    }

    .footer-logo-row {
        justify-content: center;
    }

    .footer-desc {
        margin: 0 auto;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        padding: 20px 0 32px;
    }

    .footer-socials {
        justify-content: center;
    }

    #footer {
        padding-top: 50px;
    }

    /* --- Filter Bar Mobile --- */
    .filter-bar {
        gap: 6px;
        margin-bottom: 32px;
    }

    .filter-btn {
        font-size: 0.78rem;
        padding: 6px 14px;
    }

    /* --- About page mobile --- */
    .about-card-stack {
        width: 280px;
        height: 340px;
        margin: 0 auto;
    }

    .about-glass-card {
        width: 200px;
        padding: 20px 16px;
    }

    .section-title.left-align {
        text-align: center;
    }

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

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

/* --- Small mobile (max 480px) --- */
@media(max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .section-desc {
        font-size: 0.85rem;
    }

    .hero-content {
        padding: 0 12px;
        padding-top: 130px;
    }

    .hero-title {
        font-size: 1.4rem;
        font-weight: 800;
        line-height: 1.2;
    }

    .hero-gradient-text {
        display: inline;
    }

    .hero-subtitle {
        font-size: 0.85rem;
        margin-bottom: 20px;
    }

    .hero-badge {
        font-size: 0.65rem;
        padding: 5px 12px;
        margin-bottom: 16px;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 12px 20px;
        font-size: 0.85rem;
    }

    .hero-stats {
        padding: 16px 12px;
        border-radius: var(--radius-md);
        gap: 12px;
    }

    .stat-number {
        font-size: 1.3rem;
    }

    .stat-suffix {
        font-size: 0.9rem;
    }

    .stat-label {
        font-size: 0.68rem;
    }

    .about-card-stack {
        width: 100%;
        max-width: 260px;
        height: 300px;
        margin: 0 auto;
    }

    .about-glass-card {
        width: 170px;
        padding: 12px;
    }

    .card-2 {
        top: 70px;
    }

    .card-3 {
        top: 160px;
    }

    .card-icon-circle {
        width: 44px;
        height: 44px;
    }

    .card-stat {
        font-size: 1.2rem;
    }

    .card-label {
        font-size: 0.72rem;
    }

    .service-card {
        padding: 24px 16px;
    }

    .page-hero {
        padding: 90px 0 30px;
    }

    .contact-form-wrapper {
        padding: 24px 16px;
    }

    .nav-container {
        padding: 0 12px;
    }

    .nav-logo-img {
        height: 32px;
    }

    .nav-logo-text {
        font-size: 0.8rem;
    }

    /* Fix about features alignment on very small screens */
    .about-feature {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .project-image {
        height: 140px;
    }
}

/* --- Touch device optimizations --- */
@media (hover: none) and (pointer: coarse) {
    .service-card:hover {
        transform: none;
    }

    .project-card:hover {
        transform: none;
        box-shadow: none;
    }

    .btn-primary:hover {
        transform: none;
    }

    .btn-glass:hover {
        transform: none;
    }

    .btn-outline:hover {
        transform: none;
    }

    .nav-cta:hover {
        transform: none;
    }

    .social-link:hover {
        transform: none;
    }

    .about-glass-card:hover {
        transform: none !important;
    }
}

/* --- Print styles --- */
@media print {

    .grid-bg,
    .particle,
    #preloader,
    .nav-toggle,
    .hero-scroll-indicator,
    .hero-video-wrapper {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }
}