/* ═══════════════════════════════════════════════════════════
   Eduverso Run Tracker — Layout
   Mobile-First | Sidebar Desktop | Bottom Nav Mobile
   ═══════════════════════════════════════════════════════════ */

/* ── App Shell ───────────────────────────────────────────── */
.app {
    display: flex;
    min-height: 100dvh;
}

.app-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
    width: 100%;
}

/* ── Top Header (Mobile) ────────────────────────────────── */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-subtle);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.header-logo__icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-cyan);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--text-on-accent);
    font-weight: var(--weight-bold);
}

.header-logo__text {
    font-size: var(--text-md);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
}

.header-logo__text span {
    background: var(--gradient-cyan);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.header-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--bg-elevated);
    border: 2px solid var(--border-default);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: var(--weight-bold);
    color: var(--cyan);
    cursor: pointer;
    transition: border-color var(--duration-fast);
}

.header-avatar:hover {
    border-color: var(--cyan);
}

/* ── Sidebar (Desktop) ──────────────────────────────────── */
.sidebar {
    display: none;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-subtle);
    flex-shrink: 0;
    flex-direction: column;
    padding: var(--space-6) 0;
    position: sticky;
    top: 0;
    height: 100dvh;
    overflow-y: auto;
}

.sidebar-logo {
    padding: 0 var(--space-6) var(--space-6);
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: var(--space-4);
}

.sidebar-logo h1 {
    font-size: var(--text-lg);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.sidebar-logo h1 .logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-cyan);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.sidebar-nav {
    flex: 1;
    padding: 0 var(--space-3);
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    transition: all var(--duration-fast) var(--ease-out);
    margin-bottom: var(--space-1);
}

.sidebar-nav a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.sidebar-nav a.active {
    background: var(--cyan-glow);
    color: var(--cyan);
    font-weight: var(--weight-semibold);
}

.sidebar-nav a .nav-icon {
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

.sidebar-section-title {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: var(--space-4) var(--space-4) var(--space-2);
    margin-top: var(--space-2);
}

.sidebar-footer {
    padding: var(--space-4) var(--space-4);
    border-top: 1px solid var(--border-subtle);
    margin-top: auto;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--duration-fast);
}

.sidebar-user:hover {
    background: rgba(255, 255, 255, 0.05);
}

.sidebar-user__avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--gradient-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--weight-bold);
    font-size: var(--text-sm);
    color: var(--text-on-accent);
}

.sidebar-user__info {
    flex: 1;
    min-width: 0;
}

.sidebar-user__name {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--text-primary);
}

.sidebar-user__email {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

/* ── Bottom Navigation (Mobile) ─────────────────────────── */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: var(--z-sticky);
    padding-bottom: env(safe-area-inset-bottom, 0);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.bottom-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--space-2) var(--space-3);
    color: var(--text-tertiary);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    transition: color var(--duration-fast);
    text-decoration: none;
    min-width: 56px;
    position: relative;
}

.bottom-nav a .nav-icon {
    font-size: 1.35rem;
    transition: transform var(--duration-fast) var(--ease-spring);
}

.bottom-nav a:hover,
.bottom-nav a.active {
    color: var(--cyan);
}

.bottom-nav a.active .nav-icon {
    transform: scale(1.15);
}

.bottom-nav a.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 2px;
    background: var(--cyan);
    border-radius: 0 0 2px 2px;
}

/* ── Bottom Nav FAB (Fenix Style) ────────────────────────── */
.bottom-nav__center {
    position: relative;
    width: 60px;
    height: 100%;
}

.btn-fab {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: var(--gradient-cyan);
    border: none;
    color: var(--text-on-accent);
    font-size: 2rem;
    font-weight: var(--weight-light);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 242, 255, 0.4);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-spring);
    z-index: 2;
}

.btn-fab:active {
    transform: translateX(-50%) scale(0.9) translateY(2px);
    box-shadow: 0 2px 8px rgba(0, 242, 255, 0.3);
}

.btn-fab span {
    margin-bottom: 4px;
}

/* ── Main Content Area ───────────────────────────────────── */
.main {
    flex: 1;
    padding: var(--space-4);
    padding-bottom: calc(var(--bottom-nav-height) + var(--space-6));
    max-width: var(--max-content);
    margin: 0 auto;
    width: 100%;
}

.page-header {
    margin-bottom: var(--space-6);
}

.page-header h2 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-1);
}

.page-header p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* ── Bento Grid ──────────────────────────────────────────── */
.bento-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

/* ── Evolution Page Styles ───────────────────────────────── */
.evolution-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

.evolution-card.full-width {
    grid-column: 1 / -1;
}

.efficiency-metric {
    font-size: 3rem;
    font-weight: var(--weight-bold);
    color: var(--primary);
    line-height: 1;
    margin-top: var(--space-2);
}

@media (min-width: 768px) {
    .evolution-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .evolution-card.full-width {
        grid-column: span 3;
    }
}

/* ── Auth Layout ─────────────────────────────────────────── */
.auth-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100dvh;
    padding: var(--space-6);
    background: var(--bg-primary);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-header .logo {
    width: 56px;
    height: 56px;
    background: var(--gradient-cyan);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    font-size: 1.5rem;
}

.auth-header h1 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.auth-header p {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--cyan);
    font-weight: var(--weight-semibold);
}

/* ── Desktop Breakpoint (768px+) ─────────────────────────── */
@media (min-width: 768px) {
    .header {
        display: none;
    }

    .sidebar {
        display: flex;
    }

    .bottom-nav {
        display: none;
    }

    .main {
        padding: var(--space-8);
        padding-bottom: var(--space-8);
    }

    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bento-grid .card--wide {
        grid-column: span 2;
    }
}

/* ── Large Desktop (1024px+) ─────────────────────────────── */
@media (min-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .bento-grid .card--wide {
        grid-column: span 2;
    }

    .bento-grid .card--full {
        grid-column: span 3;
    }
}

/* ── Extra Large (1400px+) ───────────────────────────────── */
@media (min-width: 1400px) {
    .bento-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .bento-grid .card--wide {
        grid-column: span 2;
    }

    .bento-grid .card--full {
        grid-column: span 4;
    }
}

/* Settings Page */
.settings-container {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--space-4);
}

.btn-outline-danger {
    background: transparent;
    border: 1px solid var(--error);
    color: var(--error);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: var(--weight-semibold);
    transition: all var(--duration-fast);
}

.btn-outline-danger:hover {
    background: var(--error);
    color: white;
}