*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --yellow:   #FFD700;
    --teal:     #1A7A6E;
    --dark:     #1C1C1E;
    --white:    #FFFFFF;
    --gray-100: #F5F5F5;
    --gray-400: #9E9E9E;
    --gray-600: #666666;
}

body {
    font-family: Arial, sans-serif;
    font-size: 15px;
    color: var(--dark);
    background: var(--white);
}

a {
    color: inherit;
    text-decoration: none;
}


nav {
    background: var(--dark);
    padding: 0 32px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--yellow);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
    padding: 6px 12px;
    border-radius: 6px;
    transition: color 0.15s;
}

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

.btn-sm {
    background: var(--yellow);
    color: var(--dark);
    font-weight: 700;
    font-size: 0.85rem;
    padding: 7px 16px;
    border-radius: 6px;
    transition: opacity 0.15s;
}

.btn-sm:hover { opacity: 0.85; }

/* ── Hero ─────────────────────────────────── */
.hero {
    background: var(--yellow);
    padding: 64px 32px;
    display: flex;
    align-items: center;
    gap: 48px;
    max-width: 1100px;
    margin: 0 auto;
}

.hero-left { flex: 1; }

.hero-left h1 {
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 14px;
    color: var(--dark);
}

.hero-left p {
    font-size: 0.95rem;
    color: rgba(28,28,30,0.65);
    line-height: 1.6;
    margin-bottom: 28px;
    max-width: 420px;
}

.hero-stats {
    display: flex;
    gap: 24px;
    margin-bottom: 28px;
}

.stat-num {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--dark);
    display: block;
    line-height: 1;
}

.stat-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: rgba(28,28,30,0.5);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
    display: block;
}

.hero-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--dark);
    color: var(--yellow);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 11px 24px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: opacity 0.15s;
}

.btn-primary:hover { opacity: 0.85; }

.btn-secondary {
    background: rgba(255,255,255,0.7);
    color: var(--dark);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 11px 24px;
    border-radius: 8px;
    border: 1px solid rgba(0,0,0,0.12);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.15s;
}

.btn-secondary:hover { background: rgba(255,255,255,0.9); }

/* ── Auth Card ────────────────────────────── */
.hero-right { flex: 0 0 320px; }

.auth-card {
    background: var(--dark);
    border-radius: 16px;
    padding: 28px 24px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.18);
}

.auth-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}

.auth-card > p {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.45);
    margin-bottom: 20px;
    line-height: 1.5;
}

.auth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: opacity 0.15s;
    margin-bottom: 10px;
}

.auth-btn:last-of-type { margin-bottom: 0; }
.auth-btn:hover { opacity: 0.85; }

.auth-btn-login {
    background: var(--yellow);
    color: var(--dark);
}

.auth-btn-register {
    background: rgba(255,255,255,0.08);
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.12);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 10px 0;
}

.auth-divider-line {
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,0.1);
}

.auth-divider span {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.3);
    font-weight: 700;
}

/* ── Sections ─────────────────────────────── */
.section-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 64px 32px;
}

.section-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 10px;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.section-header p {
    font-size: 0.9rem;
    color: var(--gray-600);
    max-width: 420px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ── Features ─────────────────────────────── */
.features-section {
    background: var(--gray-100);
}

.section-tag.tag-teal {
    background: #EAF5F3;
    color: var(--teal);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.feature-card {
    background: var(--white);
    border: 1px solid #E8E8E8;
    border-radius: 12px;
    padding: 22px 20px;
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: var(--dark);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}

.feature-card h4 {
    font-size: 0.92rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.feature-card p {
    font-size: 0.82rem;
    color: var(--gray-600);
    line-height: 1.55;
}

/* ── How It Works ─────────────────────────── */
.how-section {
    background: var(--dark);
}

.how-section .section-tag.tag-yellow {
    background: rgba(255,215,0,0.12);
    color: var(--yellow);
}

.how-section .section-header h2 { color: var(--white); }
.how-section .section-header p  { color: rgba(255,255,255,0.45); }

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.step-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 24px 20px;
    text-align: center;
}

.step-number {
    font-size: 2.4rem;
    font-weight: 800;
    color: rgba(255,215,0,0.18);
    line-height: 1;
    margin-bottom: 8px;
}

.step-badge {
    display: inline-block;
    background: var(--yellow);
    color: var(--dark);
    font-size: 0.65rem;
    font-weight: 900;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.step-card h4 {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 6px;
}

.step-card p {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
    line-height: 1.55;
}

/* ── CTA ──────────────────────────────────── */
.cta-section {
    background: var(--yellow);
    text-align: center;
}

.cta-section h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.cta-section p {
    font-size: 0.9rem;
    color: rgba(28,28,30,0.6);
    margin-bottom: 24px;
}

.cta-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ── Footer ───────────────────────────────── */
footer {
    background: var(--dark);
    padding: 24px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-brand {
    font-weight: 700;
    font-size: 1rem;
    color: var(--yellow);
    letter-spacing: 1px;
}

.footer-copy {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.3);
}

/* ── Responsive ───────────────────────────── */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        padding: 40px 20px;
    }

    .hero-right { width: 100%; flex: none; }
    .hero-left h1 { font-size: 1.8rem; }

    nav { padding: 0 16px; }
    nav .nav-link { display: none; }

    .section-inner { padding: 48px 20px; }
    footer { padding: 20px 16px; }
}