/* ============================================================
   layout.css — navbar, page container, grids, tab panels,
   login shell, and the responsive ladder.
   Load after base.css.
   ============================================================ */

/* ---------- Navbar ----------
   Sticky, solid surface with a hairline border. Deliberately
   no backdrop blur — the blur is reserved for the modal. */

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: var(--space-4);
    min-height: var(--navbar-height);
    padding: 9px 20px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-navbar);
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex: 0 0 auto;
}

/* Accepts an emoji or an inline <svg>; both size off --logo-size. */
.brand-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: var(--logo-size);
    line-height: 1;
}

.brand-logo svg {
    width: var(--logo-size);
    height: var(--logo-size);
}

.brand h1 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-lg);
    font-weight: var(--font-weight-medium);
    letter-spacing: var(--tracking-tight);
    white-space: nowrap;
}

.brand-badge {
    display: inline-flex;
    padding: 2px 7px;
    border-radius: var(--radius-pill);
    background: var(--info-tint);
    color: var(--accent-strong);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    vertical-align: middle;
}

.brand-badge:empty { display: none; }

/* ---------- Tabs (segmented control) ---------- */

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 3px;
    width: fit-content;
    flex: 0 1 auto;
    min-width: 0;
    border-radius: var(--radius-lg);
    background: var(--sunken);
}

.nav-btn {
    padding: var(--space-2) var(--space-4);
    border: 0;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--muted);
    font-size: var(--text-base);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: background var(--motion), color var(--motion);
}

.nav-btn:hover {
    background: var(--accent-tint);
    color: var(--ink);
}

.nav-btn.active {
    background: var(--accent);
    color: var(--on-accent);
}

/* ---------- Navbar right side ----------
   `margin-left: auto` here is the layout hinge: everything
   after .nav-note is right-aligned because of it. If you drop
   .nav-note, move the auto margin onto whatever comes next. */

.nav-note {
    margin-left: auto;
    color: var(--quiet);
    font-size: var(--text-label);
    font-weight: 400;
    white-space: nowrap;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-left: var(--space-1);
    padding-left: var(--space-3);
    border-left: 1px solid var(--border);
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.user-name {
    color: var(--muted);
    font-size: var(--text-base);
    font-weight: var(--font-weight-medium);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ---------- Container ---------- */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-6) var(--space-6) var(--space-7);
}

/* ---------- Tab panels ---------- */

.tab-content { display: none; }
.tab-content.active { display: block; animation: pageIn 180ms ease both; }

@keyframes pageIn {
    from { opacity: 0; transform: translateY(3px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---------- Grids ---------- */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.stats-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.charts-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    margin-bottom: 14px;
}

.charts-row.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.full-width {
    grid-column: 1 / -1;
    margin-bottom: 14px;
}

/* ---------- Login shell ----------
   Folded in from Horizon's per-page <style> block so the
   tokens live in exactly one place. */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
}

.login-logo {
    font-size: 40px;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.login-logo svg {
    width: 40px;
    height: 40px;
}

.login-card h1 {
    font-size: 22px;
    font-weight: var(--font-weight-medium);
    color: var(--ink);
    margin-bottom: var(--space-1);
}

.login-card .subtitle {
    color: var(--muted);
    font-size: var(--text-md);
    margin-bottom: 28px;
}

.google-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    color: var(--ink);
    font-size: 15px;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: box-shadow var(--motion), border-color var(--motion);
    text-decoration: none;
}

.google-btn:hover {
    border-color: var(--accent);
    box-shadow: 0 2px 8px var(--accent-tint-strong);
}

.google-btn svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.login-card .alert { margin-top: var(--space-5); }

.login-footer {
    margin-top: var(--space-6);
    color: var(--quiet);
    font-size: var(--text-label);
}

/* ---------- Responsive ladder ---------- */

@media (max-width: 1180px) {
    .navbar { gap: var(--space-2); padding-inline: 14px; }
    .brand { gap: 7px; }
    .brand-logo { font-size: 21px; }
    .brand h1 { font-size: 16px; gap: 5px; }
    .brand-badge { padding-inline: 5px; font-size: 9px; }
    .nav-btn { padding-inline: 9px; }
    .user-menu { gap: 6px; padding-left: var(--space-2); }
    .user-avatar { display: none !important; }
}

@media (max-width: 980px) {
    .nav-note { display: none; }
    .nav-links { margin-left: auto; }
    .user-name { max-width: 90px; }

    .stats-grid,
    .stats-grid.two,
    .charts-row,
    .charts-row.two-col { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
    .navbar {
        flex-wrap: wrap;
        gap: var(--space-3);
        padding: var(--space-3) var(--space-4);
    }

    .brand { width: auto; }

    /* Tab strip drops to its own full-width scrollable row. */
    .nav-links {
        order: 5;
        width: 100%;
        margin-left: 0;
        overflow-x: auto;
        scrollbar-width: thin;
    }

    .user-menu { margin-left: auto; }
    .user-name { display: none; }
    .container { padding: var(--space-5) var(--space-4) 30px; }
}