/* 
 * style.css - Primary Stylesheet for SaribSoft Landing Page
 * Designed with an elite, corporate-tech visual system (Stripe / Vercel style).
 * Supports Light Theme (Default) and Dark Theme via CSS Variables.
 */

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

:root {
    /* ELITE LIGHT THEME (Default out-of-the-box) */
    --bg-primary: #f8fafc;       /* Pure Slate White */
    --bg-secondary: #ffffff;     /* Solid White */
    --accent-blue: #2563eb;      /* Corporate Royal Blue */
    --accent-indigo: #4f46e5;    /* Deep Tech Indigo */
    --accent-sky: #0ea5e9;       /* Bright Sky Blue */
    
    --text-primary: #0f172a;     /* Deep Slate Navy */
    --text-secondary: #475569;   /* Slate Gray */
    --text-muted: #64748b;       /* Muted Slate */
    
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(15, 23, 42, 0.06);
    --glass-border-hover: rgba(37, 99, 235, 0.25);
    --glass-glow: 0 8px 30px rgba(0, 0, 0, 0.02);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

body.dark-theme, body:not(.light-theme) {
    /* ELITE DARK THEME (Obsidian Sky style) */
    --bg-primary: #030712;       /* Deep Sky Obsidian */
    --bg-secondary: #0b0f19;     /* Deep Slate Navy */
    --accent-blue: #3b82f6;      /* Bright Royal Blue */
    --accent-indigo: #6366f1;    /* Bright Indigo */
    --accent-sky: #06b6d4;       /* Neon Cyan/Teal */
    
    --text-primary: #f8fafc;     /* Bright Slate White */
    --text-secondary: #94a3b8;   /* Light Slate Gray */
    --text-muted: #64748b;       /* Muted Slate */
    
    --glass-bg: rgba(11, 15, 25, 0.65);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-border-hover: rgba(59, 130, 246, 0.3);
    --glass-glow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   Base & Resets
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--glass-border-hover);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

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

/* ==========================================================================
   Background Canvas
   ========================================================================== */
#three-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    pointer-events: auto;
}

.canvas-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(248, 250, 252, 0.3) 0%, rgba(248, 250, 252, 0.9) 100%);
    z-index: -1;
    pointer-events: none;
}

body.dark-theme .canvas-overlay, body:not(.light-theme) .canvas-overlay {
    background: radial-gradient(circle at 50% 50%, rgba(3, 7, 18, 0.3) 0%, rgba(3, 7, 18, 0.9) 100%);
}

/* ==========================================================================
   Common Utilities
   ========================================================================== */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: var(--glass-glow);
    transition: var(--transition-smooth);
}

.glass-panel:hover {
    border-color: var(--glass-border-hover);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.03);
}

body.dark-theme .glass-panel:hover, body:not(.light-theme) .glass-panel:hover {
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.08);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    border-radius: 12px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    outline: none;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-indigo) 100%);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(79, 70, 229, 0.15);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.3);
    filter: brightness(1.05);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: var(--bg-primary);
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.gradient-text {
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-blue) 70%, var(--accent-indigo) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.dark-theme .gradient-text, body:not(.light-theme) .gradient-text {
    background: linear-gradient(135deg, #ffffff 40%, var(--accent-blue) 80%, var(--accent-sky) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 15px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-header h2 {
    font-size: 3rem;
    margin-top: 10px;
    margin-bottom: 20px;
    font-weight: 800;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto;
}

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

/* ==========================================================================
   Animated 3D Visual Assets
   ========================================================================== */
.img-3d-floating {
    width: 100%;
    max-width: 440px;
    border-radius: 24px;
    box-shadow: 0 15px 35px rgba(15, 23, 42, 0.08);
    animation: float3D 6s ease-in-out infinite;
    border: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
}

body.dark-theme .img-3d-floating, body:not(.light-theme) .img-3d-floating {
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4);
}

@keyframes float3D {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

/* ==========================================================================
   Theme Switch Toggle Button
   ========================================================================== */
.theme-toggle-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10000;
    transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
    border-color: var(--accent-blue);
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.15);
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    padding: 16px 0;
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.05);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.01);
}

body.dark-theme .navbar.scrolled, body:not(.light-theme) .navbar.scrolled {
    background: rgba(3, 7, 18, 0.85);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.logo span {
    color: var(--accent-blue);
}

.logo-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: var(--accent-indigo);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-indigo);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 35px;
    align-items: center;
}

.nav-links a {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: var(--transition-fast);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    min-height: 100svh;
    position: relative;
    display: block;
    overflow-x: hidden;
}

.carousel-container {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    align-items: start;
}

.carousel-slide {
    grid-area: 1 / 1;
    width: 100%;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease, transform 0.5s ease;
    transform: scale(0.96);
    padding: 140px 0 80px;
    pointer-events: none;
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
    z-index: 2;
    pointer-events: auto;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-content h1 {
    font-size: 4.2rem;
    line-height: 1.1;
    word-wrap: break-word;
    overflow-wrap: break-word;
    margin-bottom: 25px;
    font-weight: 800;
    opacity: 0;
    transform: translateY(20px);
}

.hero-content p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    line-height: 1.7;
    opacity: 0;
    transform: translateY(20px);
}

.hero-actions {
    display: flex;
    gap: 20px;
    opacity: 0;
    transform: translateY(20px);
}

/* Slide active reveal triggers */
.carousel-slide.active .hero-content h1 {
    animation: slideUpFade 0.6s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.carousel-slide.active .hero-content p {
    animation: slideUpFade 0.6s cubic-bezier(0.25, 1, 0.5, 1) 0.15s forwards;
}

.carousel-slide.active .hero-actions {
    animation: slideUpFade 0.6s cubic-bezier(0.25, 1, 0.5, 1) 0.3s forwards;
}

.carousel-slide.active .img-3d-floating {
    animation: float3D 6s ease-in-out infinite, fadeIn 0.8s ease-out forwards;
}

@keyframes slideUpFade {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-glow-sphere {
    position: absolute;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, rgba(79, 70, 229, 0.03) 50%, rgba(0,0,0,0) 70%);
    filter: blur(25px);
}

body.dark-theme .hero-glow-sphere, body:not(.light-theme) .hero-glow-sphere {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(99, 102, 241, 0.05) 50%, rgba(0,0,0,0) 70%);
}

/* Carousel controls (dots and arrows) */
.carousel-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(15, 23, 42, 0.1);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

body.dark-theme .indicator-dot, body:not(.light-theme) .indicator-dot {
    background: rgba(255, 255, 255, 0.15);
}

.indicator-dot.active {
    background: var(--accent-blue);
    transform: scale(1.3);
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    transition: var(--transition-fast);
}

.carousel-nav:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
    transform: translateY(-50%) scale(1.05);
}

.carousel-nav.prev { left: 40px; }
.carousel-nav.next { right: 40px; }

/* ==========================================================================
   Services Section
   ========================================================================== */
.services {
    padding: 120px 0;
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.service-card {
    padding: 50px 35px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-icon-box {
    width: 55px;
    height: 55px;
    border-radius: 12px;
    background: rgba(37, 99, 235, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--accent-blue);
    margin-bottom: 30px;
    transition: var(--transition-fast);
}

body.dark-theme .service-icon-box, body:not(.light-theme) .service-icon-box {
    background: rgba(59, 130, 246, 0.08);
}

.service-card:hover .service-icon-box {
    background: var(--accent-blue);
    color: #ffffff;
    transform: scale(1.05);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 30px;
}

.service-explore-link {
    margin-top: auto;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent-blue);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.service-explore-link:hover {
    gap: 10px;
}

/* ==========================================================================
   Service Dynamic Pricing Plans & Grid (On service.php)
   ========================================================================== */
.plans-section {
    padding: 80px 0 120px;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
    align-items: stretch;
}

.plan-card {
    padding: 55px 40px;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}

.plan-card.popular {
    border-color: var(--accent-blue);
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.08);
}

body.dark-theme .plan-card.popular, body:not(.light-theme) .plan-card.popular {
    box-shadow: 0 10px 40px rgba(59, 130, 246, 0.12);
}

.popular-badge {
    position: absolute;
    top: 25px;
    right: 30px;
    background: var(--accent-blue);
    color: #ffffff;
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.plan-header h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.plan-price {
    font-family: var(--font-heading);
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: 30px;
}

.plan-features-list {
    list-style: none;
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex-grow: 1;
}

.plan-features-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.plan-features-list li i {
    color: var(--accent-blue);
    margin-top: 5px;
    font-size: 0.9rem;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about {
    padding: 120px 0;
    position: relative;
}

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

.about-content h2 {
    font-size: 2.8rem;
    margin-top: 10px;
    margin-bottom: 25px;
    word-wrap: break-word;
    font-weight: 800;
}

.about-content p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 40px;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat-item {
    padding: 25px;
    text-align: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--accent-blue);
    margin-bottom: 5px;
    display: block;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.about-visual {
    position: relative;
    border-radius: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact {
    padding: 120px 0;
    position: relative;
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 40px;
}

.contact-info {
    padding: 45px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 35px;
    margin: 45px 0;
}

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

.contact-icon {
    font-size: 1.25rem;
    color: var(--accent-blue);
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(37, 99, 235, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-text h4 {
    font-size: 1rem;
    margin-bottom: 4px;
    color: var(--text-primary);
}

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

.social-links {
    display: flex;
    gap: 16px;
}

.social-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
}

.social-icon:hover {
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.03);
    transform: translateY(-2px);
}

.contact-form {
    padding: 50px 45px;
}

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

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

.form-group label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-input {
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 14px 18px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
}

.form-input:focus {
    border-color: var(--accent-blue);
    background: var(--bg-secondary);
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.05);
}

textarea.form-input {
    min-height: 140px;
    resize: vertical;
}

.form-status {
    margin-top: 15px;
    font-size: 0.95rem;
    display: none;
}

.form-status.success {
    color: #10b981;
    display: block;
}

.form-status.error {
    color: #ef4444;
    display: block;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    padding: 70px 0 35px;
    position: relative;
}

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

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 320px;
    line-height: 1.7;
}

.footer-links h4, .footer-newsletter h4 {
    font-size: 1.1rem;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-primary);
    font-weight: 700;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.footer-newsletter p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
}

.newsletter-form .form-input {
    flex-grow: 1;
    border-radius: 10px;
    padding: 12px 18px;
}

.newsletter-form .btn {
    padding: 12px 25px;
    border-radius: 10px;
}

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

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero {
        min-height: 100svh;
    }

    .carousel-slide {
        padding-top: 140px;
        padding-bottom: 100px;
        align-items: flex-start;
    }

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
        margin-bottom: 20px;
    }
    
    .img-3d-floating {
        max-width: 280px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-visual {
        max-width: 440px;
        margin: 0 auto;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-newsletter {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
        line-height: 1.2;
    }
    
    .navbar {
        padding: 18px 0;
    }
    
    .nav-links {
        display: none;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-secondary);
        padding: 30px;
        border-bottom: 1px solid var(--glass-border);
        gap: 20px;
        z-index: 999;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 35px 25px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-newsletter {
        grid-column: span 1;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

/* ==========================================================================
   Checkout Modal & Cart System
   ========================================================================== */
.checkout-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.checkout-modal.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.checkout-modal-content {
    width: 90%;
    max-width: 600px;
    padding: 45px;
    position: relative;
    transform: scale(0.95) translateY(10px);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    max-height: 90vh;
    overflow-y: auto;
}

.checkout-modal.active .checkout-modal-content {
    transform: scale(1) translateY(0);
}

.checkout-close-btn {
    position: absolute;
    top: 25px;
    right: 30px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition-fast);
}

.checkout-close-btn:hover {
    color: var(--text-primary);
    transform: rotate(90deg);
}

.checkout-header {
    margin-bottom: 30px;
}

.checkout-subtitle {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    color: var(--accent-blue);
    display: block;
    margin-bottom: 5px;
}

.checkout-plan-summary {
    background: rgba(37, 99, 235, 0.03);
    border: 1px dashed var(--glass-border-hover);
    border-radius: 16px;
    padding: 20px 25px;
    margin-bottom: 30px;
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    align-items: center;
    gap: 20px;
}

body.dark-theme .checkout-plan-summary {
    background: rgba(59, 130, 246, 0.05);
}

.checkout-summary-details {
    display: flex;
    flex-direction: column;
}

.summary-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.summary-value {
    font-size: 1rem;
    color: var(--text-primary);
    margin-top: 4px;
}

.checkout-summary-price {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-blue);
}

body.dark-theme .checkout-summary-price {
    color: var(--accent-sky);
}

@media (max-width: 576px) {
    .checkout-plan-summary {
        grid-template-columns: 1fr;
        gap: 12px;
        text-align: center;
    }
    .checkout-summary-price {
        font-size: 1.5rem;
    }
    .checkout-modal-content {
        padding: 30px 20px;
    }
}

/* =========================================
   NEWS TICKER
   ========================================= */
.news-ticker {
    width: 100%;
    background-color: var(--ticker-bg, #ff0044);
    color: var(--ticker-color, #ffffff);
    padding: 8px 0;
    overflow: hidden;
    white-space: nowrap;
    position: absolute;
    bottom: 0;
    left: 0;
    transform: translateY(100%);
    z-index: 99;
}

.ticker-content {
    display: inline-block;
    padding-left: 100%;
    animation: tickerScroll var(--ticker-speed, 15s) linear infinite;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
}

.ticker-content span {
    display: inline-block;
    padding-right: 50px;
}

@keyframes tickerScroll {
    0% {
        transform: translate3d(0, 0, 0);
    }
    100% {
        transform: translate3d(-100%, 0, 0);
    }
}