/* ============================================
   DESIGN SYSTEM - SharpWebP
   Shared foundation for marketing + app pages
   ============================================ */

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

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
:root {
    --green: #00D68F;
    --green-dim: #00D68F33;
    --purple: #7B61FF;
    --purple-dim: #7B61FF33;
    --bg-deep: #08080F;
    --bg-card: #111119;
    --bg-card-hover: #16161F;
    --bg-elevated: #1A1A24;
    --border: #1E1E2A;
    --border-light: #2A2A3A;
    --text-primary: #F0F0F5;
    --text-secondary: #9494A8;
    --text-muted: #5E5E72;
    --gradient: linear-gradient(135deg, var(--green), var(--purple));
    --gradient-reverse: linear-gradient(135deg, var(--purple), var(--green));
    --gradient-subtle: linear-gradient(135deg, var(--green-dim), var(--purple-dim));
    --font-display: 'Syne', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-glow: 0 0 60px rgba(0, 214, 143, 0.08), 0 0 120px rgba(123, 97, 255, 0.05);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
    border-bottom: 1px solid transparent;
}

.nav.scrolled {
    background: rgba(8, 8, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom-color: var(--border);
}

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

.nav__logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav__logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--bg-deep);
    font-weight: 800;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav__link {
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.nav__link:hover, .nav__link.active { color: var(--text-primary); }

.nav__cta {
    padding: 10px 24px;
    background: var(--gradient);
    color: var(--bg-deep);
    font-weight: 600;
    font-size: 0.925rem;
    border-radius: 100px;
    transition: opacity 0.2s, transform 0.2s;
}

.nav__cta:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.nav__right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav__mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.nav__mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

/* Plan Badge (nav user plan indicator) */
.plan-badge {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--green-dim);
    color: var(--green);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   NAV RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .nav__links { display: none; }
    .nav__mobile-toggle { display: flex; }

    .nav__links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(8, 8, 15, 0.95);
        backdrop-filter: blur(20px);
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }
}