/* --- 1. DESIGN SYSTEM --- */
:root {
    --bg: #ffffff;
    --text-main: #0f172a;
    --text-sub: #64748b;
    --accent: #0055FF;
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;
    --border: #e2e8f0;
    --surface: #f8fafc;
    --input-bg: #f8fafc;
    --font-head: 'Manrope', sans-serif;
    --font-body: 'Inter', sans-serif;
    --ease-out: cubic-bezier(0.215, 0.61, 0.355, 1);
    --ease-hover: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* --- 2. BASE & RESET --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-head);
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.15;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

p {
    color: var(--text-sub);
    margin-bottom: 1.5rem;
    max-width: 650px;
    font-size: 1.05rem;
}

/* Status Messages */
.status-message {
    margin-top: 24px;
    padding: 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    display: none;
}

.status-message.success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #dcfce7;
    display: block;
}

.status-message.error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fee2e2;
    display: block;
}

.label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #94a3b8;
    margin-bottom: 1rem;
    display: block;
}

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

/* --- 3. ANIMATION UTILITIES --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.delay-100 {
    transition-delay: 0.1s;
}

.delay-200 {
    transition-delay: 0.2s;
}

.delay-300 {
    transition-delay: 0.3s;
}

/* --- 4. LAYOUT --- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
    border-bottom: 1px solid var(--border);
}

.no-border {
    border-bottom: none;
}

.bg-gray {
    background: var(--surface);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

/* --- COMPONENTS & FOOTER --- */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 70px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(12px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: 0.3s;
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-family: var(--font-head);
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--text-main);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    line-height: 1;
}

.logo img {
    height: 32px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-sub);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 8px;
    background: var(--text-main);
    color: white;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s var(--ease-hover);
    border: 1px solid var(--text-main);
    font-size: 0.95rem;
    cursor: pointer;
}

.btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(0, 85, 255, 0.3);
}

.check-list li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    font-size: 0.95rem;
}

.check-list li svg {
    width: 18px;
    height: 18px;
    color: var(--accent);
    margin-right: 12px;
    flex-shrink: 0;
}

.footer-large {
    padding: 100px 0 60px;
    background: #fff;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

.footer-about {
    font-size: 1rem;
    color: var(--text-sub);
    max-width: 320px;
    margin-top: 24px;
}

.footer-col h4 {
    font-size: 0.85rem;
    color: var(--text-sub);
    text-transform: uppercase;
    margin-bottom: 24px;
    letter-spacing: 0.1em;
}

.footer-link {
    display: block;
    color: var(--text-main);
    text-decoration: none;
    margin-bottom: 16px;
    font-weight: 500;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-sub);
    font-size: 0.9rem;
}

@media (max-width: 900px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .nav-links {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}