/* =======================================================
   FAS SaaS - Premium Landing Page Styles
   Colors: Ink, Indigo, Mist, Silver, Slate
======================================================= */
@import url('https://fonts.googleapis.com/css2?family=Alexandria:wght@300;400;600;700;800&family=Outfit:wght@400;600;800&display=swap');

:root {
    --c-ink: #0A0A0A;
    --c-indigo: #4F6EF7;
    --c-indigo-dark: #3754d1;
    --c-mist: #A5B4FC;
    --c-silver: #F5F5F7;
    --c-slate: #6B7280;
    
    --bg-main: var(--c-ink);
    --text-main: #FFFFFF;
    --text-muted: var(--c-mist);
    
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-glow: rgba(79, 110, 247, 0.15);
    
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Alexandria', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background Effects */
.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79, 110, 247, 0.15) 0%, rgba(10, 10, 10, 0) 70%);
    border-radius: 50%;
    top: -200px;
    left: -200px;
    z-index: -1;
    pointer-events: none;
}
.bg-glow-2 {
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(165, 180, 252, 0.08) 0%, rgba(10, 10, 10, 0) 70%);
    border-radius: 50%;
    top: 40%;
    right: -300px;
    z-index: -1;
    pointer-events: none;
}

/* Typography */
h1, h2, h3, h4 {
    line-height: 1.2;
    font-weight: 800;
}
.text-gradient {
    background: linear-gradient(135deg, #FFFFFF 0%, var(--c-mist) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.text-indigo { color: var(--c-indigo); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 100px;
    font-weight: 700;
    font-family: 'Alexandria', sans-serif;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1.05rem;
}
.btn-primary {
    background: var(--c-indigo);
    color: #FFF;
    box-shadow: 0 8px 24px rgba(79, 110, 247, 0.3);
}
.btn-primary:hover {
    background: var(--c-indigo-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(79, 110, 247, 0.4);
}
.btn-secondary {
    background: var(--glass-bg);
    color: #FFF;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--c-mist);
    transform: translateY(-2px);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 20px 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    padding: 12px 5%;
}
.nav-brand {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: #FFF;
    text-decoration: none;
    letter-spacing: 1px;
}
.nav-brand span {
    color: var(--c-indigo);
}
.nav-links {
    display: flex;
    gap: 32px;
}
.nav-links a {
    color: var(--c-silver);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}
.nav-links a:hover {
    color: var(--c-mist);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 5% 60px;
    position: relative;
}
.hero-content {
    max-width: 900px;
    z-index: 10;
}
.badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(79, 110, 247, 0.1);
    border: 1px solid rgba(79, 110, 247, 0.2);
    border-radius: 100px;
    color: var(--c-mist);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 1px;
}
.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 24px;
    letter-spacing: -1px;
}
.hero p {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--c-slate);
    margin-bottom: 40px;
    max-width: 700px;
    margin-inline: auto;
}
.hero-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Features - Bento Grid */
.section {
    padding: 100px 5%;
}
.section-header {
    text-align: center;
    margin-bottom: 60px;
}
.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}
.section-header p {
    color: var(--c-slate);
    font-size: 1.1rem;
}
.bento-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: 300px;
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}
.bento-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    transition: var(--transition);
}
.bento-card:hover {
    border-color: var(--c-indigo);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.bento-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, rgba(10,10,10,0) 0%, rgba(10,10,10,0.8) 100%);
    z-index: 1;
}
.bento-card-content {
    position: relative;
    z-index: 2;
}
.bento-card h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: #FFF;
}
.bento-card p {
    color: var(--c-mist);
    font-size: 0.95rem;
}
/* Grid Spans */
.feat-1 { grid-column: span 8; background: url('https://images.unsplash.com/photo-1555396273-367ea4eb4db5?q=80&w=1000&auto=format&fit=crop') center/cover; }
.feat-2 { grid-column: span 4; background: url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?q=80&w=1000&auto=format&fit=crop') center/cover; }
.feat-3 { grid-column: span 4; background: url('https://images.unsplash.com/photo-1517248135467-4c7edcad34c4?q=80&w=1000&auto=format&fit=crop') center/cover; }
.feat-4 { grid-column: span 8; background: url('https://images.unsplash.com/photo-1460925895917-afdab827c52f?q=80&w=1000&auto=format&fit=crop') center/cover; }

@media (max-width: 900px) {
    .feat-1, .feat-2, .feat-3, .feat-4 { grid-column: span 12; }
}

/* Pricing */
.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}
.toggle-switch {
    width: 60px;
    height: 32px;
    background: var(--c-indigo);
    border-radius: 100px;
    position: relative;
    cursor: pointer;
    transition: var(--transition);
}
.toggle-switch::after {
    content: '';
    position: absolute;
    top: 4px; left: 4px;
    width: 24px; height: 24px;
    background: #FFF;
    border-radius: 50%;
    transition: var(--transition);
}
.toggle-switch.yearly::after {
    left: 32px;
}

.pricing-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    max-width: 1300px;
    margin: 0 auto;
}
.pricing-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    flex: 1;
    min-width: 260px;
    max-width: 300px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}
.pricing-card:hover {
    border-color: var(--c-mist);
    transform: translateY(-10px);
}
.pricing-card.popular {
    border-color: var(--c-indigo);
    background: rgba(79, 110, 247, 0.05);
    transform: scale(1.05);
}
.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-10px);
}
.popular-badge {
    position: absolute;
    top: -14px; left: 50%;
    transform: translateX(-50%);
    background: var(--c-indigo);
    color: #FFF;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
}
.pricing-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}
.price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--c-mist);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}
.price span {
    font-size: 1rem;
    color: var(--c-slate);
    font-weight: 600;
}
.setup-fee {
    font-size: 0.85rem;
    color: var(--c-slate);
    margin-bottom: 24px;
    display: block;
}
.pricing-features {
    list-style: none;
    text-align: right;
    margin-bottom: 32px;
}
.pricing-features li {
    margin-bottom: 12px;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--c-silver);
}
.pricing-features li::before {
    content: '✓';
    color: var(--c-indigo);
    font-weight: 800;
}

/* Infrastructure */
.infra-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
    opacity: 0.6;
    margin-top: 40px;
}
.infra-logos img {
    height: 35px;
    filter: grayscale(1) brightness(2);
    transition: var(--transition);
}
.infra-logos img:hover {
    filter: grayscale(0) brightness(1);
    opacity: 1;
}

/* Footer */
.footer {
    border-top: 1px solid var(--glass-border);
    padding: 60px 5% 40px;
    text-align: center;
}
.footer-logo {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 16px;
}
.footer-logo span { color: var(--c-indigo); }
.footer p {
    color: var(--c-slate);
    margin-bottom: 32px;
}
.dev-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 100px;
    margin-top: 40px;
}
.dev-badge img {
    width: 40px; height: 40px;
    border-radius: 50%;
}
.dev-info {
    text-align: right;
}
.dev-info strong {
    display: block;
    font-size: 0.95rem;
    color: var(--c-mist);
}
.dev-info span {
    font-size: 0.75rem;
    color: var(--c-slate);
}

/* Login Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
.modal {
    background: var(--bg-main);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 400px;
    padding: 32px;
    box-shadow: 0 24px 48px rgba(0,0,0,0.5);
    transform: translateY(20px);
    transition: var(--transition);
}
.modal-overlay.active .modal {
    transform: translateY(0);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}
.close-btn {
    background: none;
    border: none;
    color: var(--c-slate);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}
.close-btn:hover { color: #FFF; }
.modal-input {
    width: 100%;
    padding: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: #FFF;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
    text-align: right;
}
.modal-input:focus {
    border-color: var(--c-indigo);
    background: rgba(255,255,255,0.05);
}

@media (max-width: 900px) {
    .feat-1, .feat-2, .feat-3, .feat-4 { grid-column: span 12; }
    .bento-grid { grid-auto-rows: 250px; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .pricing-card.popular { transform: none; }
    .pricing-card.popular:hover { transform: translateY(-5px); }
    
    .section { padding: 60px 5%; }
    .section-header { margin-bottom: 40px; }
    .section-header h2 { font-size: 2rem; }
    
    .hero { padding: 100px 5% 40px; }
    .hero-btns { flex-direction: column; width: 100%; }
    .hero-btns .btn { width: 100%; }
    
    .pricing-grid { gap: 16px; }
    .pricing-card { padding: 30px 20px; min-width: 100%; }
    
    .footer { padding: 40px 5% 20px; }
    .dev-badge { flex-direction: column; text-align: center; justify-content: center; width: 100%; }
    .dev-info { text-align: center; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 2.2rem; }
    .nav-brand { font-size: 1.5rem; }
}