/* File Location: /assets/css/landing.css */

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

:root {
    /* Premium Dark Theme Colors */
    --bg-main: #050816;
    --bg-secondary: #0B1120;
    --card-bg: #0f172a;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --accent: #38bdf8;
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.08);
    --font-inter: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* --- Base Styles --- */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-inter) !important;
    color: var(--text-main) !important;
    background-color: var(--bg-main) !important;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-main);
}

.py-100 {
    padding-top: 100px;
    padding-bottom: 100px;
}

.bg-secondary-dark {
    background-color: var(--bg-secondary);
}

.shadow-premium {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.gradient-text {
    background: linear-gradient(90deg, var(--accent), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* --- Premium Navigation --- */
.navbar-custom {
    background-color: transparent;
    padding: 24px 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1030;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.navbar-custom.scrolled {
    background-color: rgba(5, 8, 22, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-main) !important;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.02em;
}

.nav-link-custom {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    margin: 0 16px;
    transition: color 0.3s ease;
    text-decoration: none;
}

.nav-link-custom:hover {
    color: var(--accent);
}

/* --- Buttons & Interactions --- */
.btn-gradient {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #FFFFFF !important;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    padding: 12px 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-gradient:hover {
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.5);
    transform: translateY(-2px);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-main) !important;
    font-weight: 600;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: all 0.3s ease;
    text-decoration: none;
    padding: 12px 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

.ripple-btn {
    position: relative;
    overflow: hidden;
}

/* --- Hero Section --- */
.hero-section {
    position: relative;
    min-height: 100vh;
    background-color: var(--bg-main);
    background-image: url('https://images.unsplash.com/photo-1518605368461-1e1e1115b9c0?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(5,8,22,0.95) 0%, rgba(5,8,22,0.7) 100%);
    z-index: 1;
}

.z-index-2 {
    z-index: 2;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 90%;
}

.rating-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.875rem;
    backdrop-filter: blur(8px);
}

.stat-number {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.floating-img {
    animation: float 6s ease-in-out infinite;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* --- Features Section --- */
.section-title {
    font-size: 2.5rem;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.feature-card-premium {
    background: var(--card-bg);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.4s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.feature-card-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.feature-card-premium:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.15);
}

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

.feature-icon-wrapper {
    width: 54px;
    height: 54px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
    border: 1px solid rgba(56, 189, 248, 0.2);
}

.feature-title {
    font-size: 1.15rem;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.feature-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0;
}

/* --- Pricing Section --- */
.pricing-card-premium {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 48px 32px;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all 0.4s ease;
    position: relative;
}

.pricing-card-premium:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.15);
}

.pricing-card-premium.popular-plan {
    border: 2px solid var(--accent);
    background: linear-gradient(180deg, rgba(15,23,42,1) 0%, rgba(5,8,22,1) 100%);
    box-shadow: 0 10px 40px rgba(56, 189, 248, 0.15);
}

.popular-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(90deg, var(--primary), var(--accent));
    color: #FFFFFF;
    padding: 6px 20px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
    white-space: nowrap;
}

.pricing-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
    margin-bottom: 24px;
    text-align: center;
}

.pricing-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.pricing-price .currency {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-muted);
}

.pricing-price .amount {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
    color: var(--text-main);
}

.pricing-price .duration {
    font-size: 1rem;
    color: var(--text-muted);
}

.pricing-features {
    padding: 0;
    list-style: none;
    flex-grow: 1;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--text-main);
    font-size: 1rem;
}

.pricing-features li i {
    margin-top: 4px;
}

.text-accent { color: var(--accent); }

/* --- App Screenshots Carousel --- */
.mockup-carousel .carousel-indicators {
    bottom: -50px;
}

.mockup-carousel .carousel-indicators button {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    border: none;
    margin: 0 6px;
    transition: all 0.3s ease;
}

.mockup-carousel .carousel-indicators button.active {
    background-color: var(--accent);
    transform: scale(1.3);
}

/* --- Download Section Glow --- */
.glow-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
    z-index: 1;
    pointer-events: none;
}

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

/* --- Testimonials --- */
.testimonial-card {
    background: var(--card-bg);
    padding: 48px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    max-width: 800px;
    margin: 0 auto;
}

/* --- FAQ Accordion --- */
.custom-accordion .accordion-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    margin-bottom: 16px;
    border-radius: 12px;
    overflow: hidden;
}

.custom-accordion .accordion-button {
    background: var(--card-bg);
    color: var(--text-main);
    font-weight: 600;
    box-shadow: none;
    padding: 24px;
    font-size: 1.1rem;
}

.custom-accordion .accordion-button:not(.collapsed) {
    color: var(--accent);
    background: rgba(37, 99, 235, 0.05);
}

.custom-accordion .accordion-button::after {
    filter: invert(1);
}

.custom-accordion .accordion-button:not(.collapsed)::after {
    filter: invert(0.6) sepia(1) saturate(5) hue-rotate(175deg);
}

.custom-accordion .accordion-body {
    color: var(--text-muted);
    padding: 0 24px 24px 24px;
    font-size: 1rem;
    line-height: 1.8;
}

/* --- Contact Section --- */
.contact-card {
    display: block;
    background: var(--card-bg);
    padding: 40px 32px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.contact-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(15, 23, 42, 0.8);
}

.contact-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 20px auto;
}

/* --- Footer --- */
.footer-section {
    background-color: #03050C;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text-main);
}

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

.footer-heading {
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 24px;
    color: var(--text-main);
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
}

.footer-link:hover {
    color: var(--accent);
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-decoration: none;
}

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

/* --- Scroll Reveal Animations --- */
.reveal-fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade-up.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-zoom {
    opacity: 0;
    transform: scale(0.95);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-zoom.active {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delays for grids */
.row > div:nth-child(2) .reveal-fade-up { transition-delay: 100ms; }
.row > div:nth-child(3) .reveal-fade-up { transition-delay: 200ms; }
.row > div:nth-child(4) .reveal-fade-up { transition-delay: 300ms; }

/* --- Responsive Adjustments --- */
@media (max-width: 992px) {
    .hero-title { font-size: 3rem; }
    .hero-section { align-items: flex-start; padding-top: 120px; text-align: center; }
    .hero-text-col { margin-bottom: 40px; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
}

@media (max-width: 768px) {
    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1.05rem; }
    .section-title { font-size: 2rem; }
    .pricing-price .amount { font-size: 2.75rem; }
    .testimonial-card { padding: 32px 20px; }
    .py-100 { padding-top: 70px; padding-bottom: 70px; }
    .navbar-custom { background-color: rgba(5, 8, 22, 0.95); padding: 16px 0; }
}