/* =============================================================================
   Fuse Meetings — Styles
   =============================================================================
   Visual language deliberately mirrors the door tablet:
   - Fuse blue (#1F4E79) as the primary brand colour
   - Same status colours (FREE green, IN USE red, ENDING SOON amber)
   - Clean typography, lots of whitespace, no decoration for decoration's sake
   ============================================================================= */

/* ---------- Reset & base ---------- */

*, *::before, *::after { box-sizing: border-box; }

:root {
    --brand-primary: #1F4E79;       /* Fuse blue (overridable per building) */
    --brand-primary-dark: #163A5C;
    --brand-text: #1A2332;
    --brand-muted: #6B7280;
    --brand-bg: #F6F7F9;
    --brand-card: #FFFFFF;
    --brand-border: #E4E7EB;

    --state-free-bg: #2D7A3D;
    --state-free-fg: #FFFFFF;
    --state-in-use-bg: #C92128;
    --state-in-use-fg: #FFFFFF;
    --state-ending-bg: #D68910;
    --state-ending-fg: #FFFFFF;
    --state-starting-bg: #5B2D8A;
    --state-starting-fg: #FFFFFF;

    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
}

html { font-size: 16px; }

body {
    margin: 0;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--brand-text);
    background: var(--brand-bg);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ---------- Header ---------- */

.site-header {
    background: var(--brand-primary);
    color: #fff;
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.brand-mark { font-size: 1.4rem; }
.brand-mark-divider { font-size: 1.4rem; opacity: 0.6; }
.brand-product { font-size: 1.4rem; font-weight: 400; opacity: 0.95; }

.building-name {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* ---------- Main layout ---------- */

.site-main {
    padding: 2.5rem 0 4rem;
    min-height: calc(100vh - 200px);
}

.building-intro {
    margin-bottom: 2.5rem;
}

.building-intro h1 {
    font-size: 2.25rem;
    margin: 0 0 0.5rem;
    color: var(--brand-primary);
    letter-spacing: -0.025em;
}

.lead {
    font-size: 1.05rem;
    color: var(--brand-muted);
    max-width: 640px;
    margin: 0;
}

.section-heading {
    font-size: 1.25rem;
    color: var(--brand-text);
    margin: 0 0 1.25rem;
    letter-spacing: -0.01em;
}

/* ---------- Rooms grid ---------- */

.rooms-section {
    margin-bottom: 3rem;
}

.room-grid {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.room-card {
    background: var(--brand-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.15s ease;
    display: flex;
    flex-direction: column;
}

.room-card:hover {
    box-shadow: var(--shadow-md);
}

.room-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.room-name {
    margin: 0;
    font-size: 1.2rem;
    color: var(--brand-text);
    letter-spacing: -0.01em;
}

/* State pill — same colours as the door tablet */

.state-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    white-space: nowrap;
}

.state-pill-free {
    background: var(--state-free-bg);
    color: var(--state-free-fg);
}

.state-pill-in_use {
    background: var(--state-in-use-bg);
    color: var(--state-in-use-fg);
}

.state-pill-ending_soon {
    background: var(--state-ending-bg);
    color: var(--state-ending-fg);
}

.state-pill-starting_soon {
    background: var(--state-starting-bg);
    color: var(--state-starting-fg);
}

.room-meta {
    margin: 0 0 0.5rem;
    font-size: 0.875rem;
    color: var(--brand-muted);
}

.room-description {
    margin: 0 0 1rem;
    color: var(--brand-text);
    font-size: 0.95rem;
}

.room-state-detail {
    margin-top: auto;
    padding-top: 1rem;
    color: var(--brand-muted);
    font-size: 0.875rem;
}

.room-state-detail p {
    margin: 0;
}

.room-actions {
    margin-top: 1.25rem;
}

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.05s ease;
    text-decoration: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--brand-primary);
    color: #fff;
}

.btn-primary:hover:not(:disabled) {
    background: var(--brand-primary-dark);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(1px);
}

.btn-disabled,
.btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* ---------- Empty state ---------- */

.empty {
    background: var(--brand-card);
    border: 1px dashed var(--brand-border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    color: var(--brand-muted);
}

/* ---------- Next steps section ---------- */

.next-steps {
    margin-top: 3rem;
    padding: 1.5rem;
    background: var(--brand-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius);
}

.next-steps p {
    color: var(--brand-muted);
    margin: 0;
}

/* ---------- Flash messages ---------- */

.flash {
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    border-left: 4px solid;
    font-size: 0.95rem;
}

.flash-info { background: #E0F2FE; border-color: #0284C7; color: #075985; }
.flash-success { background: #DCFCE7; border-color: #16A34A; color: #14532D; }
.flash-error { background: #FEE2E2; border-color: #DC2626; color: #7F1D1D; }
.flash-warning { background: #FEF3C7; border-color: #D97706; color: #78350F; }

/* ---------- Footer ---------- */

.site-footer {
    background: var(--brand-text);
    color: rgba(255, 255, 255, 0.85);
    padding: 1.5rem 0;
    font-size: 0.875rem;
}

.site-footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-building strong { color: #fff; }

.footer-address {
    color: rgba(255, 255, 255, 0.6);
}

.footer-brand {
    color: rgba(255, 255, 255, 0.6);
}

/* ---------- Error pages ---------- */

.error-page {
    text-align: center;
    padding: 4rem 1rem;
}

.error-page h1 {
    font-size: 3.5rem;
    color: var(--brand-primary);
    margin: 0 0 0.5rem;
    letter-spacing: -0.025em;
}

.error-page p {
    color: var(--brand-muted);
    font-size: 1.05rem;
    margin: 0 auto;
    max-width: 480px;
}

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

@media (max-width: 640px) {
    .site-header .container,
    .site-footer .container {
        flex-direction: column;
        align-items: flex-start;
    }

    .building-intro h1 {
        font-size: 1.75rem;
    }

    .room-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- Auth UI (login form, check-email, error) ---------- */

.auth-card {
    max-width: 480px;
    margin: 2rem auto;
    background: var(--brand-card);
    border: 1px solid var(--brand-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
}

.auth-heading {
    margin: 0 0 0.5rem;
    font-size: 1.625rem;
    color: var(--brand-primary);
    letter-spacing: -0.02em;
}

.auth-lead {
    margin: 0 0 1.25rem;
    color: var(--brand-text);
    line-height: 1.55;
}

.auth-form {
    margin: 1.5rem 0 1rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--brand-text);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--brand-border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--brand-text);
    margin-bottom: 1rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(31, 78, 121, 0.15);
}

.btn-full {
    width: 100%;
    padding: 0.85rem 1.25rem;
    font-size: 1rem;
}

.auth-help {
    margin-top: 1.5rem;
    color: var(--brand-muted);
    font-size: 0.9rem;
    text-align: center;
}

.auth-help a {
    color: var(--brand-primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-help a:hover {
    text-decoration: underline;
}

.auth-help-block {
    background: var(--brand-bg);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
}

.auth-help-block h3 {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
    color: var(--brand-text);
}

.auth-help-block ul {
    margin: 0;
    padding-left: 1.25rem;
    color: var(--brand-muted);
    font-size: 0.9rem;
}

.auth-help-block li {
    margin-bottom: 0.25rem;
}

.auth-list {
    color: var(--brand-text);
    padding-left: 1.25rem;
    margin: 1rem 0 1.5rem;
}

.auth-list li {
    margin-bottom: 0.5rem;
}

/* ---------- Signed-in indicator in header ---------- */

.header-right {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.signed-in-as {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
}

.signed-in-as strong {
    color: #fff;
}

.signed-in-logout {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: underline;
    margin-left: 0.25rem;
}

.signed-in-logout:hover {
    color: #fff;
}

.lead-link {
    color: var(--brand-primary);
    text-decoration: underline;
    font-weight: 500;
}

.lead-link:hover {
    color: var(--brand-primary-dark);
}