/* ==========================================================================
   Placemetry Fire Risk — Shared Stylesheet
   Styles common across all pages (login, history, report, admin, etc.)
   ========================================================================== */


/* --------------------------------------------------------------------------
   1. CSS Variables
   -------------------------------------------------------------------------- */

:root {
    --brand: #1a1a2e;
    --brand-accent: #455eb6;
    --green: #27ae60;
    --amber: #f39c12;
    --orange: #e67e22;
    --red: #e74c3c;
    --severe: #8e44ad;
    --bg: #f6f3f0;
    --card-bg: #fff;
    --border: #e5e7eb;
    --text: #1a1a2e;
    --text-secondary: #555;
    --text-muted: #888;
}


/* --------------------------------------------------------------------------
   2. Reset + Body
   -------------------------------------------------------------------------- */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}


/* --------------------------------------------------------------------------
   3. Top Navigation
   -------------------------------------------------------------------------- */

.top-nav {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--brand);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.15s;
}

.nav-links a:hover { color: var(--brand); }
.nav-links a.active { color: var(--brand); font-weight: 700; }

.nav-sep { color: var(--border); font-size: 0.9rem; }
.nav-user { color: var(--text-secondary); font-size: 0.85rem; }

.nav-links .signout { color: var(--text-muted); font-size: 0.85rem; }
.nav-links .signout:hover { color: var(--red); }


/* --------------------------------------------------------------------------
   4. Main Content Area
   -------------------------------------------------------------------------- */

.page-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1.5rem;
}


/* --------------------------------------------------------------------------
   5. Card
   -------------------------------------------------------------------------- */

.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
}


/* --------------------------------------------------------------------------
   6. Buttons
   -------------------------------------------------------------------------- */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--brand-accent);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: background 0.2s;
}

.btn:hover { background: #3a4f9a; }
.btn:disabled { background: #ccc; cursor: not-allowed; }

.btn-block { display: block; width: 100%; }

.btn-secondary {
    background: transparent;
    color: var(--brand-accent);
    border: 1px solid var(--brand-accent);
}

.btn-secondary:hover { background: #f0f2ff; }


/* --------------------------------------------------------------------------
   7. Tables
   -------------------------------------------------------------------------- */

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }

th {
    text-align: left;
    padding: 0.6rem 0.75rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border);
}

td {
    padding: 0.75rem;
    border-bottom: 1px solid #f0f1f3;
    vertical-align: middle;
}

tr:hover td { background: #fafbfc; }

/* Sortable table headers */
th[data-col] {
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

th[data-col]:hover { color: var(--text); }

.sort-arrow {
    display: inline-block;
    margin-left: 3px;
    font-size: 0.65rem;
    color: #bbb;
    transition: color 0.15s;
}

th.sorted .sort-arrow { color: var(--brand-accent); }


/* --------------------------------------------------------------------------
   8. Score Badge
   -------------------------------------------------------------------------- */

.score-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.85rem;
    color: #fff;
    min-width: 40px;
    text-align: center;
}


/* --------------------------------------------------------------------------
   9. Utility Classes
   -------------------------------------------------------------------------- */

.date-cell { font-size: 0.82rem; color: var(--text-muted); white-space: nowrap; }
.num-cell { text-align: center; font-weight: 500; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }

.empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}


/* --------------------------------------------------------------------------
   10. Footer
   -------------------------------------------------------------------------- */

.site-footer {
    text-align: center;
    color: #aaa;
    font-size: 0.8rem;
    padding: 2rem 1rem;
}


/* --------------------------------------------------------------------------
   11. Flash Messages
   -------------------------------------------------------------------------- */

.flash {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.flash-error { background: #fde8e8; color: var(--red); }
.flash-success { background: #e8f8e8; color: var(--green); }
.flash-warning { background: #fef3e2; color: var(--orange); }
.flash-info { background: #e8f0fe; color: var(--brand-accent); }


/* --------------------------------------------------------------------------
   12. Invite Dropdown
   -------------------------------------------------------------------------- */

.invite-trigger { position: relative; }

.invite-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 300px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    padding: 1.25rem;
    z-index: 200;
    text-align: left;
}

.invite-dropdown.open { display: block; }

.invite-dropdown input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    outline: none;
}

.invite-dropdown input:focus { border-color: var(--brand-accent); }

.invite-dropdown .btn { width: 100%; padding: 0.55rem; font-size: 0.9rem; margin-top: 0; }


/* --------------------------------------------------------------------------
   13. Responsive Base Breakpoints
   -------------------------------------------------------------------------- */

@media (max-width: 768px) {
    .nav-inner { height: 48px; }
    .nav-brand { font-size: 1.1rem; }
    .nav-links { gap: 0.75rem; }
    .nav-links a { font-size: 0.82rem; }
    .page-content { padding: 1.5rem 1rem; }
}

@media (max-width: 480px) {
    .nav-links .nav-user { display: none; }
    .nav-links { gap: 0.5rem; }
}