/* film-styles.css
   Film Photography gallery: a drugstore photo envelope.
   Cream paper and white prints, with red and yellow for fun. */

:root {
    --film-bg: #fbf3e4;        /* page background, envelope cream */
    --film-surface: #ffffff;   /* cards: white prints */
    --film-line: #eadfcb;      /* hairlines and borders */
    --film-text: #2b2420;      /* body text, warm near-black */
    --film-muted: #6b5d50;     /* captions and metadata */
    --film-accent: #c0392b;    /* frame numbers, links, focus/hover rings */
    --film-yellow: #f5b700;    /* decoration only (sprocket strip); too light for text */
    --film-mat: #ffffff;       /* the print border around thumbnails */

    /* the lightbox stays dark so photos pop */
    --lightbox-text: #f3ede2;
    --lightbox-muted: #c2b8a8;
    --lightbox-accent: #f5b700;

    --font-serif: "DM Serif Display", Georgia, serif;
    --font-sans: "DM Sans", system-ui, sans-serif;
    --font-mono: "Space Mono", "Courier New", monospace;

    --page-width: 1100px;
}

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

body {
    margin: 0;
    background: var(--film-bg);
    color: var(--film-text);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: var(--film-accent);
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--film-accent);
    outline-offset: 3px;
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -3rem;
    padding: 0.5rem 1rem;
    background: var(--film-surface);
    color: var(--film-accent);
    z-index: 10;
}

.skip-link:focus {
    top: 1rem;
}

.film-page {
    max-width: var(--page-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Top navigation */
.film-nav {
    border-bottom: 1px solid var(--film-line);
}

.film-nav ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.25rem 1.5rem;
    max-width: var(--page-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    list-style: none;
}

.film-nav a {
    display: inline-block;
    padding: 0.4rem 0.2rem;
    color: var(--film-text);
    text-decoration: none;
    border-bottom: 2px solid transparent;
}

.film-nav a:hover {
    color: var(--film-accent);
}

.film-nav a[aria-current="page"] {
    color: var(--film-accent);
    border-bottom-color: var(--film-accent);
}

/* Header */
.film-header {
    padding: 3.5rem 0 2rem;
    text-align: center;
}

.film-header h1 {
    margin: 0;
    font-family: var(--font-serif);
    font-size: clamp(2.4rem, 7vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: 0.01em;
}

.film-subtitle {
    margin: 0.75rem 0 0;
    color: var(--film-muted);
    font-size: 1.1rem;
}

.back-link {
    display: inline-block;
    margin-bottom: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

/* Sprocket-hole strip used as a divider */
.sprocket {
    height: 18px;
    margin: 0 0 2.5rem;
    background:
        radial-gradient(circle, var(--film-bg) 3.5px, transparent 4px) 0 50% / 22px 18px repeat-x,
        var(--film-yellow);
    border-radius: 3px;
}

/* Sections */
.film-section {
    margin-bottom: 3rem;
}

.film-section h2 {
    margin: 0 0 1.25rem;
    font-family: var(--font-serif);
    font-size: 1.9rem;
    font-weight: 400;
}

.film-intro {
    max-width: 42rem;
    margin: 0 auto 3rem;
    font-size: 1.05rem;
}

.film-intro p {
    margin: 0;
}

.roll-note {
    max-width: 42rem;
    margin: 0 0 2rem;
}

/* Rolls sidebar beside the Favorites gallery */
.film-layout {
    display: grid;
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
}

.film-favorites {
    grid-column: 2;
    grid-row: 1;
}

/* Stays in view while the gallery scrolls; scrolls itself if taller than the window */
.film-rolls {
    grid-column: 1;
    grid-row: 1;
    position: sticky;
    top: 1.5rem;
    max-height: calc(100vh - 3rem);
    overflow-y: auto;
    padding: 4px;               /* room for the hover/focus ring inside the scroll box */
    margin: -4px;
}

.film-rolls h2 {
    margin-bottom: 0.75rem;
}

.film-rolls .roll-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.5rem;
}

/* Compact sidebar tile: badge on the roll-number line */
.film-rolls .roll-tile {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.1rem 0.5rem;
    padding: 0.6rem 1rem;
}

.film-rolls .roll-number {
    grid-area: 1 / 1;
}

.film-rolls .roll-badge {
    grid-area: 1 / 2;
    align-self: center;
    margin-top: 0;
    font-size: 0.7rem;
}

.film-rolls .roll-stock,
.film-rolls .roll-meta {
    grid-column: 1 / -1;
}

.film-rolls .roll-stock {
    font-size: 1.15rem;
}

/* Small mono labels: frame numbers, roll numbers, metadata */
.frame-label,
.roll-number,
.photo-caption,
.roll-meta,
.roll-badge {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
}

.frame-label,
.roll-number {
    color: var(--film-accent);
}

.frame-label a {
    color: inherit;
}

/* Roll menu */
.roll-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.roll-tile {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    height: 100%;
    padding: 1.1rem 1.25rem;
    background: var(--film-surface);
    border: 1px solid var(--film-line);
    border-radius: 4px;
    color: var(--film-text);
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

a.roll-tile[href]:hover,
a.roll-tile[href]:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 0 0 2px var(--film-accent);
    outline: none;
}

.roll-stock {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    line-height: 1.2;
}

.roll-meta {
    color: var(--film-muted);
}

.roll-badge {
    align-self: flex-start;
    margin-top: 0.5rem;
    padding: 0.1rem 0.5rem;
    border: 1px solid var(--film-line);
    border-radius: 999px;
    color: var(--film-muted);
}

/* Placeholder roll (no page yet): muted, no hover lift */
.roll-tile.is-disabled {
    cursor: default;
}

.roll-tile.is-disabled .roll-number,
.roll-tile.is-disabled .roll-stock {
    color: var(--film-muted);
}

/* Photo grid (favorites and roll pages) */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.25rem;
}

.photo-card {
    margin: 0;
    padding: 0.75rem 0.75rem 1rem;
    background: var(--film-surface);
    border: 1px solid var(--film-line);
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(43, 36, 32, 0.08);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.photo-card:hover,
.photo-card:focus-within {
    transform: translateY(-3px);
    box-shadow: 0 0 0 2px var(--film-accent);
}

.photo-link {
    display: block;
    padding: 4px;               /* thin print mat */
    background: var(--film-mat);
    border: 1px solid var(--film-line);
}

.photo-link:focus-visible {
    outline-offset: 4px;
}

.photo-link img {
    width: 100%;
    height: auto;
    aspect-ratio: 3 / 4;        /* half-frame shots are portrait */
    object-fit: cover;
    background: var(--film-bg);
}

/* A photo shot in landscape orientation */
.photo-card.landscape {
    grid-column: span 2;
}

.photo-card.landscape .photo-link img {
    aspect-ratio: 4 / 3;
}

/* A square crop */
.photo-card.square .photo-link img {
    aspect-ratio: 1 / 1;
}

.photo-card figcaption {
    padding-top: 0.6rem;
}

.photo-card .frame-label {
    display: block;
}

.photo-title {
    margin: 0.2rem 0 0;
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1.25;
}

.photo-caption {
    margin: 0.3rem 0 0;
    color: var(--film-muted);
}

.photo-note {
    margin: 0.4rem 0 0;
    font-size: 0.92rem;
}

/* Lightbox (built by js/film-gallery.js) */
.lightbox {
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    height: 100dvh;
    max-height: 100dvh;
    margin: 0;
    padding: 0;
    border: none;
    background: rgba(15, 14, 13, 0.96);
    color: var(--lightbox-text);
}

.lightbox::backdrop {
    background: rgba(15, 14, 13, 0.85);
}

html.lightbox-open {
    overflow: hidden;
}

.lightbox-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    height: 100%;
    padding: 3.5rem 4.5rem 1.5rem;
    overflow: hidden;
}

.lightbox-image {
    max-width: 92vw;
    max-height: 78vh;
    width: auto;
    height: auto;
    flex-shrink: 0;             /* the caption gives way, never the photo */
    object-fit: contain;
    padding: 4px;
    background: var(--film-mat);
    transition: opacity 0.2s;
}

.lightbox.is-loading .lightbox-image {
    opacity: 0.4;
}

.lightbox-details {
    flex: 0 1 auto;
    width: min(36rem, 92vw);
    min-height: 0;
    max-height: 22vh;
    overflow-y: auto;
    text-align: center;
}

.lightbox-details .photo-title {
    font-size: 1.3rem;
}

.lightbox-details .frame-label {
    color: var(--lightbox-accent);
}

.lightbox-details .photo-caption {
    color: var(--lightbox-muted);
}

.lightbox-details > :empty {
    display: none;
}

/* Wide, short windows: caption beside the photo so it never pushes it off screen */
@media (min-width: 900px) and (min-aspect-ratio: 4/3), (min-width: 600px) and (min-aspect-ratio: 3/2) {
    .lightbox-stage {
        flex-direction: row;
        gap: 2rem;
        padding: 2rem 5rem;
    }

    .lightbox-image {
        max-width: calc(92vw - 22rem);
        max-height: 86vh;
    }

    .lightbox-details {
        width: 18rem;
        max-height: 86vh;
        text-align: left;
    }
}

.lightbox-button {
    position: absolute;
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    padding: 0;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 50%;
    color: var(--lightbox-accent);
    font-family: var(--font-sans);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
}

.lightbox button:focus-visible {
    outline-color: var(--lightbox-accent);
}

.lightbox-button:hover {
    border-color: var(--lightbox-accent);
}

.lightbox-close {
    top: 0.75rem;
    right: 0.75rem;
    font-size: 2.4rem;
}

.lightbox-prev,
.lightbox-next {
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-prev {
    left: 0.75rem;
}

.lightbox-next {
    right: 0.75rem;
}

.lightbox-button[hidden] {
    display: none;
}

/* Footer */
.film-footer {
    margin-top: 2rem;
    padding: 2rem 0 2.5rem;
    border-top: 1px solid var(--film-line);
    color: var(--film-muted);
    font-size: 0.9rem;
    text-align: center;
}

.film-footer p {
    margin: 0.3rem 0;
}

/* Narrower screens: Rolls above Favorites instead of beside them */
@media (max-width: 900px) {
    .film-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: 0;
    }

    /* Page order: Favorites, then Rolls below */
    .film-favorites,
    .film-rolls {
        grid-column: auto;
        grid-row: auto;
    }

    .film-rolls {
        position: static;
        max-height: none;
        overflow: visible;
    }

    .film-rolls h2 {
        margin-bottom: 1.25rem;
    }

    .film-rolls .roll-grid {
        gap: 1rem;
    }

    .film-rolls .roll-tile {
        display: flex;
        padding: 1.1rem 1.25rem;
    }

    .film-rolls .roll-badge {
        align-self: flex-start;
        margin-top: 0.5rem;
        font-size: 0.78rem;
    }

    .film-rolls .roll-stock {
        font-size: 1.35rem;
    }

    .film-rolls .roll-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
}

/* Tablet: two across */
@media (max-width: 768px) {
    .film-page,
    .film-nav ul {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .film-header {
        padding-top: 2.5rem;
    }

    .roll-grid,
    .photo-grid,
    .film-rolls .roll-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .lightbox-stage {
        padding: 3.5rem 1rem 1rem;
    }

    .lightbox-image {
        max-height: 64vh;
    }

    .lightbox-prev,
    .lightbox-next {
        top: auto;
        bottom: 0.75rem;
        transform: none;
    }
}

/* Phone: one column */
@media (max-width: 480px) {
    .roll-grid,
    .photo-grid,
    .film-rolls .roll-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .photo-card.landscape {
        grid-column: auto;
    }

    .film-nav ul {
        gap: 0 1rem;
        font-size: 0.95rem;
    }

    .lightbox-stage {
        padding-bottom: 4.5rem;     /* room for the arrows at the bottom */
    }
}

@media (prefers-reduced-motion: reduce) {
    .roll-tile,
    .photo-card,
    .lightbox-image {
        transition: none;
    }

    a.roll-tile[href]:hover,
    a.roll-tile[href]:focus-visible,
    .photo-card:hover,
    .photo-card:focus-within {
        transform: none;
    }
}