/* ==========================================
   AeroKlima 2026 - CSS Design System & Layout
   ========================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --bg-dark: #070913;
    --bg-card: rgba(15, 18, 36, 0.4);
    --bg-card-hover: rgba(22, 27, 54, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 242, 254, 0.3);
    
    /* Primary brand colors */
    --accent-cyan: #00f2fe;
    --accent-blue: #4facfe;
    --accent-purple: #7f00ff;
    --accent-green: #00ff87;
    
    /* Text colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Gradients */
    --grad-primary: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-cyan) 100%);
    --grad-purple: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-blue) 100%);
    --grad-green: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --grad-text: linear-gradient(135deg, #ffffff 30%, #a5f3fc 100%);
    --grad-accent-text: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
    
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* UI properties */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
    
    /* Shadows */
    --shadow-glow: 0 0 30px rgba(0, 242, 254, 0.15);
    --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-dark);
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Background Ambient Glows */
.ambient-glow-1 {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    top: -100px;
    right: -200px;
    z-index: -1;
    pointer-events: none;
}

.ambient-glow-2 {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(127, 0, 255, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
    top: 600px;
    left: -200px;
    z-index: -1;
    pointer-events: none;
}

.ambient-glow-3 {
    position: absolute;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
    bottom: 200px;
    right: -100px;
    z-index: -1;
    pointer-events: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-dark);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* Common Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
}

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

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

.accent-gradient-text {
    background: var(--grad-accent-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================
   Buttons & Interactive Elements
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
    border: none;
}

.btn-primary {
    background: var(--grad-primary);
    color: #000;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.2);
}

.btn-primary:hover {
    box-shadow: 0 6px 25px rgba(0, 242, 254, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ==========================================
   Header / Navigation
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    background: rgba(7, 9, 19, 0.6);
    backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
}

.header-scrolled {
    background: rgba(7, 9, 19, 0.85);
    border-bottom-color: rgba(0, 242, 254, 0.15);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo i {
    color: var(--accent-cyan);
    font-size: 1.8rem;
    animation: rotateWind 6s linear infinite;
}

@keyframes rotateWind {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
    padding: 6px 0;
}

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

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

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    padding: 160px 0 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.badge {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-cyan);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.badge span {
    width: 8px;
    height: 8px;
    background-color: var(--accent-cyan);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px var(--accent-cyan);
    animation: pulseGlow 1.5s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 800;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-top: 10px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.stat-item h3 {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
    margin-top: 4px;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    transition: var(--transition-smooth);
}

.hero-image-wrapper:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.hero-image-wrapper:hover .hero-image {
    transform: scale(1.05);
}

.hero-glass-overlay {
    position: absolute;
    bottom: 24px;
    left: 24px;
    right: 24px;
    padding: 20px;
    background: rgba(15, 18, 36, 0.6);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 16px;
}

.hero-overlay-icon {
    width: 48px;
    height: 48px;
    background: var(--grad-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    flex-shrink: 0;
}

.hero-overlay-text h4 {
    font-size: 1rem;
    font-weight: 600;
}

.hero-overlay-text p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ==========================================
   Services Section
   ========================================== */
.services {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.section-header .badge {
    align-self: center;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--grad-primary);
    opacity: 0;
    transition: var(--transition-smooth);
}

.service-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-8px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 242, 254, 0.05);
    border: 1px solid rgba(0, 242, 254, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    font-size: 1.5rem;
    transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
    background: var(--grad-primary);
    color: #000;
    border-color: transparent;
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
}

.service-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.service-info h3 {
    font-size: 1.35rem;
    font-weight: 700;
}

.service-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.service-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: auto;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.service-features i {
    color: var(--accent-green);
    font-size: 0.95rem;
}

/* ==========================================
   Interactive Climate Calculator
   ========================================== */
.calculator-section {
    padding: 100px 0;
    position: relative;
}

.calculator-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 50px;
    backdrop-filter: blur(16px);
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    box-shadow: var(--shadow-card);
}

.calculator-form {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.calc-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.calc-label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calc-value {
    color: var(--accent-cyan);
    font-weight: 700;
    font-size: 1.1rem;
}

/* Custom range input */
.range-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    transition: var(--transition-fast);
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-cyan);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
    transition: var(--transition-fast);
}

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

/* Radio Cards styling */
.radio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.radio-card {
    position: relative;
}

.radio-card input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-btn-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: center;
    transition: var(--transition-smooth);
    font-weight: 500;
    font-size: 0.85rem;
}

.radio-btn-label i {
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.radio-card input:checked + .radio-btn-label {
    background: rgba(0, 242, 254, 0.06);
    border-color: var(--accent-cyan);
    color: var(--text-primary);
}

.radio-card input:checked + .radio-btn-label i {
    color: var(--accent-cyan);
    transform: scale(1.1);
}

.radio-btn-label:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Calculator Result Panel */
.calculator-result-panel {
    background: rgba(7, 9, 19, 0.5);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.calculator-result-panel::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
    top: -50px;
    right: -50px;
    z-index: 0;
}

.result-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.result-heading {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-value-container {
    display: flex;
    flex-direction: column;
}

.result-btu {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--accent-cyan);
    text-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
}

.result-watts {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.result-details-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 24px 0;
}

.result-detail-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
}

.result-detail-item span:first-child {
    color: var(--text-secondary);
}

.result-detail-item span:last-child {
    font-weight: 600;
}

.calculator-cta-btn {
    margin-top: 20px;
    width: 100%;
}

/* ==========================================
   Booking & Consultation Form
   ========================================== */
.booking-section {
    padding: 100px 0;
    position: relative;
}

.about-grid,
.booking-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.booking-text {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.booking-benefits {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.benefit-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 255, 135, 0.08);
    border: 1px solid rgba(0, 255, 135, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-green);
    flex-shrink: 0;
}

.benefit-content h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.benefit-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.booking-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow-card);
    position: relative;
}

.form-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
}

.booking-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-control {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-smooth);
}

.form-control:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
    background: rgba(255, 255, 255, 0.05);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 18px;
    padding-right: 45px;
}

.booking-btn {
    margin-top: 10px;
    width: 100%;
}

/* Success Overlay */
.booking-success-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0d1124;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    z-index: 10;
}

.booking-success-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.success-icon-wrapper {
    width: 80px;
    height: 80px;
    background: rgba(0, 255, 135, 0.1);
    border: 2px dashed var(--accent-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-green);
    font-size: 2.2rem;
    margin-bottom: 24px;
    position: relative;
    animation: rotateDashed 20s linear infinite;
}

.success-icon-wrapper i {
    animation: popCheck 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
    animation-delay: 0.3s;
}

@keyframes rotateDashed {
    100% { transform: rotate(360deg); }
}

@keyframes popCheck {
    0% { transform: scale(0); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.success-title {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.success-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 30px;
}

/* ==========================================
   Testimonials Section
   ========================================== */
.testimonials {
    padding: 100px 0;
    position: relative;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: var(--transition-smooth);
}

.testimonial-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    border-color: rgba(0, 242, 254, 0.15);
}

.stars {
    color: #fbbf24;
    display: flex;
    gap: 4px;
    font-size: 0.9rem;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.7;
}

.testimonial-user {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: auto;
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--grad-purple);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.user-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

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

/* ==========================================
   FAQ Section (Accordion)
   ========================================== */
.faq-section {
    padding: 100px 0;
    position: relative;
}

.faq-wrapper {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.faq-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    text-align: left;
    cursor: pointer;
    outline: none;
}

.faq-icon-wrapper {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.faq-item.active {
    border-color: var(--border-glow);
    background: var(--bg-card-hover);
}

.faq-item.active .faq-icon-wrapper {
    background: var(--grad-primary);
    color: #000;
    transform: rotate(45deg);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
}

.faq-item.active .faq-content {
    max-height: 1000px; /* Large enough default */
    transition: max-height 0.5s cubic-bezier(0.86, 0, 0.07, 1);
}

.faq-body {
    padding: 0 24px 24px 24px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    padding-top: 16px;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background: #03040a;
    border-top: 1px solid var(--border-color);
    padding: 80px 0 30px 0;
    position: relative;
    overflow: hidden;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 50px;
    margin-bottom: 60px;
}

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

.footer-brand .logo {
    font-size: 1.6rem;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.social-icon:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    background: rgba(0, 242, 254, 0.05);
    transform: translateY(-2px);
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
    font-family: var(--font-heading);
}

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

.footer-link a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.footer-link a:hover {
    color: var(--accent-cyan);
    padding-left: 4px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.contact-item i {
    color: var(--accent-cyan);
    margin-top: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.footer-bottom-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

/* ==========================================
   Blog & Knowledge Base Section
   ========================================== */
.blog-section {
    padding: 100px 0;
    position: relative;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 20px;
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.blog-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    border-color: rgba(0, 242, 254, 0.15);
}

.blog-image-wrapper {
    width: 100%;
    height: 240px;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.blog-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

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

.blog-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex-grow: 1;
}

.blog-meta {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.blog-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.blog-meta span i {
    width: 14px;
    height: 14px;
    color: var(--accent-cyan);
}

.blog-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.blog-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.blog-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-cyan);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.95rem;
    margin-top: auto;
    transition: var(--transition-fast);
}

.blog-btn:hover {
    color: #00f2fe;
    gap: 12px;
}

/* ==========================================
   Responsive Styles
   ========================================== */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        width: 100%;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .calculator-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-grid,
    .booking-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: #070913;
        flex-direction: column;
        padding: 50px 24px;
        gap: 30px;
        transition: var(--transition-smooth);
        border-top: 1px solid var(--border-color);
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .radio-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .booking-section,
    .services,
    .calculator-section,
    .testimonials,
    .faq-section,
    .blog-section {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 2.0rem;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        gap: 10px;
        margin-top: 30px;
        padding-top: 30px;
    }
    
    .stat-item h3 {
        font-size: 1.8rem;
    }
    
    .booking-card,
    .calculator-card {
        padding: 24px 16px;
    }
    
    .form-title {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }
    
    .faq-question {
        padding: 16px 20px;
        font-size: 1.0rem;
    }
    
    .faq-answer-inner {
        padding: 0 20px 16px 20px;
    }
}