/*
 * File:        /wwwroot/css/sf-layout.css
 * Layer:       TIER 2 — LAYOUT
 * Description: Structural grid, spacing, and page-zone rules.
 *              No decorative color — uses semantic tokens only.
 *              Responsive breakpoints aligned with Bootstrap 5.3:
 *              xs <576, sm ≥576, md ≥768, lg ≥992, xl ≥1200, xxl ≥1400
 *
 * Load order:  1. sf-base.css
 *              2. sf-tokens.css
 *              3. sf-layout.css  ← THIS FILE
 *              4. sf-components.css
 *              5. sf-theme-*.css
 */

/* ═══════════════════════════════════════════════════════════════════════════
   L1 · PAGE SCAFFOLD
═══════════════════════════════════════════════════════════════════════════ */

/* Ensure footer always stays at bottom regardless of content length */
.sf-page-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.sf-page-wrapper > main {
    flex: 1;
}

/* ═══════════════════════════════════════════════════════════════════════════
   L2 · CONTAINER OVERRIDES
   Harmonize with Bootstrap's container system; add project-specific widths.
═══════════════════════════════════════════════════════════════════════════ */
.container,
.container-fluid,
.container-xl,
.container-xxl {
    /* Handled by Bootstrap — do NOT duplicate width/margin here */
    /* Override only padding to match design spec */
    --bs-gutter-x: 1.5rem;
}

/* Narrow reading container for forms, login, confirmations */
.sf-container-narrow {
    max-width: 520px;
    margin-inline: auto;
    padding-inline: 1rem;
}

/* Medium container for detail pages, booking */
.sf-container-md {
    max-width: 860px;
    margin-inline: auto;
    padding-inline: 1rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   L3 · SECTION SPACING
═══════════════════════════════════════════════════════════════════════════ */
.sf-section {
    padding-block: 4rem;
}

.sf-section-sm {
    padding-block: 2.5rem;
}

.sf-section-alt {
    background-color: var(--sf-bg-surface);
}

.sf-section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.sf-section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    display: flex;
    align-items: center;
    gap: .75rem;
    margin: 0;
}

@media (max-width: 480px) {
    .sf-section {
        padding-block: 2.5rem;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   L4 · NAVBAR LAYOUT
═══════════════════════════════════════════════════════════════════════════ */
.sf-navbar {
    padding: .75rem 0;
    z-index: 1030;
}

.sf-brand {
    display: flex;
    align-items: center;
}

/* ═══════════════════════════════════════════════════════════════════════════
   L5 · HERO LAYOUT
═══════════════════════════════════════════════════════════════════════════ */
.sf-hero {
    position: relative;
    min-height: clamp(420px, 55vw, 640px);
    display: flex;
    align-items: center;
    background: url('/images/movie_theatre_background.png') center / cover no-repeat;
    overflow: hidden;
}

.sf-hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--sf-bg-hero-overlay);
}

.sf-hero-content {
    position: relative;
    z-index: 1;
    max-width: 580px;
    padding: 3rem 1rem;
}

@media (max-width: 768px) {
    .sf-hero {
        min-height: 380px;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   L6 · CARD GRID
═══════════════════════════════════════════════════════════════════════════ */
.sf-movie-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
}

.sf-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   L7 · PAGE HEADER ZONE
═══════════════════════════════════════════════════════════════════════════ */
.sf-page-header {
    background: var(--sf-bg-surface);
    border-bottom: 1px solid var(--sf-border-color);
    padding: 2.5rem 0 2rem;
}

.sf-page-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin: 0;
}

.sf-page-subtitle {
    color: var(--sf-text-muted);
    margin: .5rem 0 0;
    font-size: 1.05rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   L8 · FOOTER LAYOUT
═══════════════════════════════════════════════════════════════════════════ */
.sf-footer {
    padding: 3.5rem 0 2rem;
    margin-top: auto;
}

/* ═══════════════════════════════════════════════════════════════════════════
   L9 · BOOKING / CART SPLIT LAYOUT
═══════════════════════════════════════════════════════════════════════════ */
.sf-order-summary {
    position: sticky;
    top: 90px;
}

@media (max-width: 768px) {
    .sf-order-summary {
        position: static;
    }

    .sf-cart-item {
        flex-direction: column;
    }

    .sf-cart-item-controls {
        margin-left: 0;
        width: 100%;
        justify-content: space-between;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   L10 · SEAT GRID LAYOUT — SVG SEAT SYSTEM
   Seats render as inline SVG cinema-chair icons. Size is fluid via CSS
   custom property --sf-seat-size, which collapses on smaller screens.
   Row labels sit on both sides of each row for quick row identification.
   Size increased 50% from original (46px → 69px desktop base).
═══════════════════════════════════════════════════════════════════════════ */

/* Desktop seat size — 50% larger than previous 46px */
:root { --sf-seat-size: 46px; }

.sf-seat-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    width: auto;           /* ← theater layout width: reduce to shrink, increase to expand */
    max-width: 100%;       /* ← caps absolute growth on very wide screens */
    margin-inline: auto;  /* ← keeps grid centered within the column */
    overflow-x: auto;
    padding-bottom: 4px;
}

.sf-seat-row {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

/* The SVG seat tile — available and selected states (button) */
.sf-seat-tile {
    position: relative;
    width: var(--sf-seat-size) !important;
    height: var(--sf-seat-size) !important;
    min-width: var(--sf-seat-size) !important;
    min-height: var(--sf-seat-size) !important;
    flex: 0 0 var(--sf-seat-size) !important;
    cursor: pointer;
    border: none;
    background: transparent;
    padding: 0;
    border-radius: 0;
    transition: transform 0.15s ease, filter 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sf-seat-tile svg {
    width: 75%;
    height: 75%;
    pointer-events: none;
}

/* Seat label inside each tile (rendered by JS as an absolute span) */
.sf-seat-tile-label {
    position: absolute;
    bottom: 52%;          /* ← label height: higher = further up the seat back; lower = toward cushion */
    left: 50%;
    transform: translateX(-50%);
    font-size: clamp(11px, calc(var(--sf-seat-size) * 0.22), 17px);
    font-weight: 700;
    color: var(--sf-seat-text-available, var(--sf-text-muted));
    pointer-events: none;
    line-height: 1;
    white-space: nowrap;
    letter-spacing: .02em;
    font-family: var(--sf-font-body);
    user-select: none;
}

.sf-seat-tile:not(.sf-seat-ghost):not([disabled]):hover {
    transform: translateY(-3px);
    filter: brightness(1.2);
}

.sf-seat-tile:focus-visible {
    outline: 2px solid var(--sf-color-focus-ring);
    outline-offset: 2px;
    border-radius: 3px;
}

/* Reserved tile — visible non-interactive span with orange corner-bracket icon.
   Orange signals "temporarily held mid-checkout" — urgent but not permanent.
   Distinct from sold red which signals "permanently gone". */
.sf-seat-reserved-tile {
    position: relative;
    width: var(--sf-seat-size) !important;
    height: var(--sf-seat-size) !important;
    min-width: var(--sf-seat-size) !important;
    min-height: var(--sf-seat-size) !important;
    flex: 0 0 var(--sf-seat-size) !important;
    cursor: not-allowed;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(217,119,6,.10);
    border-radius: 10px;
}

.sf-seat-reserved-tile svg {
    width: 92%;
    height: 92%;
    pointer-events: none;
}

/* Sold / Blocked tile — visible non-interactive span with high-contrast red X icon.
   Red (#C8102E) signals "permanently gone" — stronger than reserved orange which
   signals "temporarily held". Mirrors reserved tile sizing exactly. */
.sf-seat-sold-tile {
    position: relative;
    width: var(--sf-seat-size) !important;
    height: var(--sf-seat-size) !important;
    min-width: var(--sf-seat-size) !important;
    min-height: var(--sf-seat-size) !important;
    flex: 0 0 var(--sf-seat-size) !important;
    cursor: not-allowed;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(200,16,46,.10);
    border-radius: 10px;
}

.sf-seat-sold-tile svg {
    width: 88%;
    height: 88%;
    pointer-events: none;
}

/* Gap / aisle — invisible but takes up space */
.sf-seat-gap {
    width: var(--sf-seat-size) !important;
    height: var(--sf-seat-size) !important;
    min-width: var(--sf-seat-size) !important;
    min-height: var(--sf-seat-size) !important;
    flex: 0 0 var(--sf-seat-size) !important;
    pointer-events: none;
    background: transparent;
    visibility: hidden;
}

/* Ghost (sold/blocked/inactive) — invisible placeholder */
.sf-seat-ghost {
    width: var(--sf-seat-size) !important;
    height: var(--sf-seat-size) !important;
    min-width: var(--sf-seat-size) !important;
    min-height: var(--sf-seat-size) !important;
    flex: 0 0 var(--sf-seat-size) !important;
    pointer-events: none;
    visibility: hidden;
    background: transparent;
    border: none;
}

/* Old .sf-seat kept for backward compat / legend fallback only */
.sf-seat {
    width: 18px;
    height: 16px;
    border-radius: 3px 3px 0 0;
    cursor: default;
    flex-shrink: 0;
}

/* ── Row labels ──────────────────────────────────────────────────────────── */
.sf-seat-row-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--sf-text-muted);
    flex-shrink: 0;
    letter-spacing: .05em;
    font-family: var(--sf-font-body);
}

/* ── Legend swatch ───────────────────────────────────────────────────────── */
.sf-legend-swatch {
    display: inline-flex;
    vertical-align: middle;
    width: 40px;
    height: 40px;
    margin-right: 8px;
    flex-shrink: 0;
}

.sf-legend-swatch svg {
    width: 100%;
    height: 100%;
}

/* ── Responsive seat sizing — scaled proportionally from new 69px base ───── */
@media (max-width: 991px) {
    :root { --sf-seat-size: 71px; }
}

@media (max-width: 768px) {
    :root { --sf-seat-size: 60px; }
    .sf-seat-row-label { font-size: .65rem; }
}

@media (max-width: 480px) {
    :root { --sf-seat-size: 48px; }
    .sf-seat-row { gap: 4px; }
    .sf-seat-tile-label { font-size: 7px; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   L11 · CASCADE FILTER BAR (Genre → Title dropdowns)
═══════════════════════════════════════════════════════════════════════════ */
.sf-cascade-bar {
    align-items: flex-end;
    gap: .6rem;
    border-radius: var(--sf-radius-lg);
    padding: .85rem 1.1rem;
}

.sf-cascade-wrap {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    flex: 1;
    min-width: 160px;
}

@media (max-width: 576px) {
    .sf-cascade-bar {
        flex-direction: column;
    }

    .sf-cascade-arrow {
        transform: rotate(90deg);
        align-self: center;
        padding-bottom: 0;
    }

    .sf-cascade-btn {
        width: 100%;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   L12 · ADMIN DASHBOARD LAYOUT
═══════════════════════════════════════════════════════════════════════════ */
.sf-admin-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: calc(100vh - 60px);
}

.sf-admin-sidebar {
    border-right: 1px solid var(--sf-border-color);
    padding: 1.5rem 0;
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
    overflow-y: auto;
}

.sf-admin-main {
    padding: 2rem;
    overflow-x: auto;
}

@media (max-width: 992px) {
    .sf-admin-layout {
        grid-template-columns: 1fr;
    }

    .sf-admin-sidebar {
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--sf-border-color);
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   L13 · UTILITY LAYOUT HELPERS
═══════════════════════════════════════════════════════════════════════════ */
.sf-divider {
    height: 1px;
    background: var(--sf-border-color);
    border: none;
    margin: 1.5rem 0;
}

.sf-summary-divider {
    height: 1px;
    background: var(--sf-border-color);
    margin: .5rem 0;
}