:root {
    color-scheme: dark;
    --bg-base: #05060f;
    --bg-panel: rgba(15, 17, 32, 0.85);
    --bg-card: #101220;
    --bg-card-soft: rgba(255, 255, 255, 0.02);
    --border-soft: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.12);
    --text-primary: #f4f6ff;
    --text-muted: #9ca8c9;
    --brand-primary: #7c9bff;
    --brand-secondary: #42e3ff;
    --accent: #ff7cd8;
    --success: #63f5b0;
    --danger: #f87171;
    --shadow-soft: 0 20px 60px rgba(3, 6, 25, 0.55);
    --radius-lg: 24px;
    --radius-md: 16px;
    font-family: 'Inter', 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* {
    box-sizing: border-box;
}

body,
.app-shell-body {
    min-height: 100vh;
    margin: 0;
    background-color: var(--bg-base);
    background-image: radial-gradient(circle at 20% 20%, rgba(66, 227, 255, 0.18), transparent 45%), radial-gradient(circle at 80% 0%, rgba(255, 124, 216, 0.12), transparent 40%), radial-gradient(circle at 10% 80%, rgba(124, 155, 255, 0.25), transparent 45%);
    color: var(--text-primary);
    font-family: 'Inter', 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
}

.app-bg-glow {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(circle at 25% 20%, rgba(124, 155, 255, 0.45), transparent 45%), radial-gradient(circle at 80% 10%, rgba(66, 227, 255, 0.35), transparent 35%);
    filter: blur(80px);
    opacity: 0.45;
    z-index: 0;
}

.app-shell-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: saturate(180%) blur(22px);
    border-bottom: 1px solid var(--border-soft);
    background: linear-gradient(115deg, rgba(5, 6, 15, 0.95), rgba(7, 11, 32, 0.9));
    box-shadow: var(--shadow-soft);
}

.app-chrome {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
}

.brand-mark {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: inherit;
}

.brand-glyph {
    width: 48px;
    height: 48px;
    border-radius: 18px;
    border: 1px solid var(--border-soft);
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, rgba(66, 227, 255, 0.25), rgba(124, 155, 255, 0.15));
    box-shadow: 0 12px 35px rgba(10, 12, 38, 0.45);
    font-size: 1.4rem;
    color: var(--brand-secondary);
}

.brand-glyph-sm {
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
}

.brand-title {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-size: 1.25rem;
    letter-spacing: 0.05em;
}

.brand-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.25em;
    text-transform: uppercase;
}

.primary-nav {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.nav-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.nav-chip:hover,
.nav-chip:focus-visible {
    color: var(--text-primary);
    border-color: var(--border-strong);
    background: rgba(124, 155, 255, 0.08);
}

.auth-cluster {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
    flex-wrap: wrap;
}

.user-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.85rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 999px;
    border: 1px solid var(--border-soft);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.btn-glass {
    border-radius: 999px;
    border: 1px solid var(--border-soft);
    padding: 0.55rem 1.4rem;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    font-weight: 600;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-glass:hover,
.btn-glass:focus-visible {
    transform: translateY(-2px);
    border-color: var(--brand-secondary);
    box-shadow: 0 12px 30px rgba(15, 19, 45, 0.45);
}

.btn-gradient {
    border-radius: 999px;
    border: none;
    padding: 0.6rem 1.8rem;
    font-weight: 600;
    background: linear-gradient(120deg, var(--brand-secondary), var(--brand-primary), var(--accent));
    color: #05060f;
    box-shadow: 0 12px 40px rgba(66, 227, 255, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 50px rgba(66, 227, 255, 0.45);
    color: #05060f;
}

.app-shell-main {
    position: relative;
    z-index: 1;
    padding-top: 2.5rem;
}

.app-shell-main main {
    background: var(--bg-panel);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-soft);
}

.app-shell-footer {
    margin-top: 3rem;
    padding: 2.5rem 0 2rem;
    border-top: 1px solid var(--border-soft);
    background: rgba(5, 6, 15, 0.8);
    backdrop-filter: blur(18px);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.footer-link {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.35rem 0;
    transition: color 0.2s ease;
}

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

.footer-meta {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    justify-content: center;
    width: 100%;
}

.footer-meta .dot {
    width: 4px;
    height: 4px;
    border-radius: 999px;
    background: var(--text-muted);
    display: inline-flex;
}

a,
button {
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.card,
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

.glass-card {
    background: var(--bg-card-soft);
    backdrop-filter: blur(22px);
}

::selection {
    background: rgba(124, 155, 255, 0.4);
    color: var(--text-primary);
}

@media (max-width: 992px) {
    .app-chrome {
        flex-direction: column;
        align-items: flex-start;
    }

    .auth-cluster {
        margin-left: 0;
        width: 100%;
        justify-content: flex-start;
    }

    .primary-nav {
        width: 100%;
    }
}

@media (max-width: 768px) {
    body,
    .app-shell-body {
        font-size: 0.95rem;
    }

    .app-chrome {
        padding: 0.75rem 1.25rem;
        gap: 0.75rem;
    }

    .brand-glyph {
        width: 40px;
        height: 40px;
        border-radius: 14px;
        font-size: 1.1rem;
    }

    .brand-title {
        font-size: 1rem;
    }

    .brand-subtitle {
        font-size: 0.65rem;
        letter-spacing: 0.18em;
    }

    .nav-chip {
        font-size: 0.85rem;
        padding: 0.4rem 0.75rem;
    }

    .btn-glass,
    .btn-gradient {
        padding: 0.5rem 1.1rem;
        font-size: 0.85rem;
    }

    .app-shell-main main {
        padding: 1.5rem;
        border-radius: 18px;
    }

    .footer-grid {
        gap: 1rem;
    }
}

@media (max-width: 576px) {
    .primary-nav {
        flex-direction: column;
        align-items: stretch;
    }

    .auth-cluster {
        flex-direction: column;
        align-items: stretch;
    }

    .app-shell-main {
        padding-top: 1.25rem;
    }

    .app-shell-main main {
        padding: 1.25rem;
    }

    .app-shell-footer {
        padding: 1.5rem 0;
    }

    .footer-meta {
        flex-direction: column;
        gap: 0.35rem;
    }
}