/* =====================================================
   OIP Gallery — Stylesheet
   Brand: Ordo Igneus Phoenix
   Palette: Crimson #C41E1E · Amber #E07B20 · White #FAFAFA
   ===================================================== */

/* ── Variables ──────────────────────────────────────── */
:root {
    --crimson:      #C41E1E;
    --crimson-dark: #9B1515;
    --amber:        #E07B20;
    --amber-light:  #f5a24a;
    --bg:           #FAFAFA;
    --surface:      #FFFFFF;
    --text:         #1A1A1A;
    --muted:        #666666;
    --border:       #E0E0E0;
    --card-shadow:  0 2px 12px rgba(196, 30, 30, 0.10);
    --card-shadow-h:0 8px 24px rgba(196, 30, 30, 0.20);
    --radius:       8px;
    --header-h:     64px;
    --transition:   0.2s ease;
}

/* ── Reset ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

a { color: var(--crimson); }
a:hover { text-decoration: underline; }

code {
    font-family: monospace;
    background: #f0f0f0;
    padding: 0.1em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
}

/* ── Site Header ────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 200;
    height: var(--header-h);
    background: var(--surface);
    border-bottom: 3px solid var(--crimson);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    gap: 1rem;
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    flex-shrink: 0;
}
.site-logo img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
}
.logo-fallback { font-size: 1.8rem; line-height: 1; }
.site-logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--crimson);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

/* Nav */
.site-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
}
.site-nav a {
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    font-size: 0.95rem;
    padding-bottom: 2px;
    border-bottom: 2px solid transparent;
    transition: color var(--transition), border-color var(--transition);
}
.site-nav a:hover,
.site-nav a.active {
    color: var(--crimson);
    border-bottom-color: var(--crimson);
    text-decoration: none;
}

/* Favourites badge */
.fav-badge { display: inline-flex; align-items: center; gap: 0.35rem; }
.fav-badge .count {
    background: var(--crimson);
    color: #fff;
    border-radius: 10px;
    padding: 1px 7px;
    font-size: 0.72rem;
    font-weight: 700;
    min-width: 20px;
    text-align: center;
    display: none;
}
.fav-badge .count.visible { display: inline-block; }

/* Logout button */
.btn-logout {
    background: transparent;
    border: 2px solid var(--crimson);
    color: var(--crimson) !important;
    padding: 0.3rem 0.9rem;
    border-radius: 5px;
    font-weight: 700;
    font-size: 0.88rem;
    cursor: pointer;
    text-decoration: none !important;
    transition: background var(--transition), color var(--transition);
    border-bottom: 2px solid var(--crimson) !important;
}
.btn-logout:hover {
    background: var(--crimson);
    color: #fff !important;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.6rem;
    color: var(--text);
    cursor: pointer;
    line-height: 1;
    padding: 0.2rem;
}

/* ── Main content wrapper ───────────────────────────── */
.main-content {
    max-width: 1320px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* ── Page headings ──────────────────────────────────── */
.page-title {
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--crimson);
    margin-bottom: 0.3rem;
}
.page-subtitle {
    color: var(--muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

/* Toolbar row (title + action button) */
.page-toolbar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.5rem;
}
.page-toolbar .page-subtitle { margin-bottom: 0; }

/* ── Breadcrumb ─────────────────────────────────────── */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    color: var(--muted);
}
.breadcrumb a { color: var(--crimson); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { color: var(--border); }

/* ── How-to guide ───────────────────────────────────── */
.how-to-guide {
    margin-top: 2.5rem;
    background: #FEF6EC;
    border: 2px solid #E8B87A;
    border-left: 5px solid var(--amber);
    border-radius: var(--radius);
    padding: 1rem 1.25rem 1.1rem;
    max-width: 720px;
    box-shadow: 0 2px 10px rgba(224, 123, 32, 0.15);
}

.how-to-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    font-weight: 700;
    color: #7A4A10;
    margin-bottom: 0.7rem;
}


.how-to-body {
    font-size: 0.88rem;
    color: #8B5E30;
    line-height: 1.9;
}

.how-to-body strong { color: #5C3A0E; }
.how-to-body a      { color: var(--amber); }
.how-to-body a:hover{ color: #b85e10; }

.heart-inline { color: var(--amber); }

/* ── Album grid ─────────────────────────────────────── */
.album-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 1.5rem;
}

.album-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    text-decoration: none;
    color: inherit;
    display: block;
    transition: transform var(--transition), box-shadow var(--transition);
}
.album-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-h);
    text-decoration: none;
}

.album-card-cover {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: #eee;
}
.album-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.35s ease;
}
.album-card:hover .album-card-cover img { transform: scale(1.06); }

.album-card-info {
    padding: 0.75rem 1rem 0.85rem;
    border-top: 1px solid var(--border);
}
.album-card-name {
    font-weight: 700;
    font-size: 0.98rem;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.album-card-count { font-size: 0.83rem; color: var(--muted); margin-top: 0.15rem; }

/* ── Photo grid ─────────────────────────────────────── */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
    gap: 0.75rem;
}

.photo-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 6px;
    background: #e8e8e8;
    cursor: pointer;
    outline: none;
}
.photo-item:focus-visible { box-shadow: 0 0 0 3px var(--amber); }

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease, opacity 0.3s;
    opacity: 0;
}
.photo-item img.loaded { opacity: 1; }
.photo-item:hover img { transform: scale(1.05); }

/* Favourite button on thumbnail */
.fav-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    background: rgba(255, 255, 255, 0.88);
    border: none;
    border-radius: 50%;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0;
    transition: opacity var(--transition), transform var(--transition);
    backdrop-filter: blur(4px);
}
.photo-item:hover .fav-btn,
.fav-btn.active { opacity: 1; }

.fav-btn .heart { color: #bbb; transition: color var(--transition), transform 0.15s; }
.fav-btn.active .heart { color: var(--amber); }
.fav-btn:hover .heart { transform: scale(1.25); }

/* ── Lightbox ───────────────────────────────────────── */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(13, 13, 13, 0.93);
    z-index: 500;
    align-items: center;
    justify-content: center;
}
.lightbox.open { display: flex; }

.lightbox-inner {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 95vw;
}

.lightbox-inner > img {
    max-width: 88vw;
    max-height: 78vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 8px 48px rgba(0, 0, 0, 0.7);
    display: block;
}

.lightbox-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    color: #fff;
    width: 100%;
    justify-content: center;
}

.lightbox-meta { text-align: center; }
.lightbox-counter { font-size: 0.9rem; color: rgba(255,255,255,0.85); }
.lightbox-filename { font-size: 0.8rem; color: rgba(255,255,255,0.5); margin-top: 0.2rem; }

.lightbox-btn {
    background: rgba(255, 255, 255, 0.12);
    border: none;
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
    flex-shrink: 0;
}
.lightbox-btn:hover { background: rgba(255, 255, 255, 0.28); }
.lightbox-btn.fav .heart { color: rgba(255,255,255,0.6); font-style: normal; }
.lightbox-btn.fav.active { background: var(--amber); }
.lightbox-btn.fav.active .heart { color: #fff; }

.lightbox-close {
    position: absolute;
    top: -2.8rem;
    right: 0;
    background: none;
    border: none;
    color: rgba(255,255,255,0.75);
    font-size: 2.2rem;
    line-height: 1;
    cursor: pointer;
    transition: color var(--transition);
}
.lightbox-close:hover { color: #fff; }

.lightbox-arrow {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.10);
    border: none;
    color: #fff;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
    z-index: 510;
}
.lightbox-arrow:hover { background: rgba(255,255,255,0.25); }
.lightbox-arrow.prev { left: 1.25rem; }
.lightbox-arrow.next { right: 1.25rem; }

/* ── Login page ─────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    position: relative;
    overflow: hidden;
}

/* Flame side-glow */
.login-page::before,
.login-page::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 220px;
    pointer-events: none;
}
.login-page::before {
    left: 0;
    background: linear-gradient(to right,
        rgba(224, 123, 32, 0.38) 0%,
        rgba(196, 30, 30, 0.18) 55%,
        transparent 100%);
}
.login-page::after {
    right: 0;
    background: linear-gradient(to left,
        rgba(224, 123, 32, 0.38) 0%,
        rgba(196, 30, 30, 0.18) 55%,
        transparent 100%);
}

.login-card {
    position: relative;
    z-index: 1;
    background: var(--surface);
    border-radius: 12px;
    padding: 2.5rem 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.13);
    text-align: center;
}

.login-logo {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.1rem;
    display: block;
}

.login-logo-placeholder {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: #1a1a1a;
    margin: 0 auto 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.login-title {
    font-size: 1.45rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--crimson);
    margin-bottom: 0.3rem;
}
.login-subtitle {
    color: var(--muted);
    font-size: 0.92rem;
    margin-bottom: 2rem;
}

.login-form .form-group { margin-bottom: 1.25rem; text-align: left; }

.login-form label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.login-form input {
    width: 100%;
    padding: 0.65rem 0.9rem;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text);
    background: #fff;
    transition: border-color var(--transition);
}
.login-form input:focus { outline: none; border-color: var(--crimson); }

.login-error {
    background: #fff3f3;
    border: 1px solid #f5c6c6;
    color: var(--crimson-dark);
    padding: 0.7rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
}

/* ── Buttons ────────────────────────────────────────── */
.btn-primary {
    width: 100%;
    background: var(--crimson);
    color: #fff;
    border: none;
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--transition);
    margin-top: 0.25rem;
}
.btn-primary:hover { background: var(--crimson-dark); }

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--crimson);
    color: #fff;
    border: none;
    padding: 0.6rem 1.4rem;
    border-radius: 6px;
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition), opacity var(--transition);
    white-space: nowrap;
}
.btn-download:hover { background: var(--crimson-dark); text-decoration: none; color: #fff; }
.btn-download:disabled { opacity: 0.45; cursor: default; pointer-events: none; }

/* ── Empty state ────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--muted);
}
.empty-state .icon { font-size: 3rem; margin-bottom: 1rem; display: block; }
.empty-state h3 { font-size: 1.2rem; color: var(--text); margin-bottom: 0.5rem; }
.empty-state p { font-size: 0.95rem; }

/* ── Footer ─────────────────────────────────────────── */
.site-footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 1.4rem 1.5rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
    margin-top: 3rem;
}
.site-footer a { color: var(--crimson); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-logo {
    height: 22px;
    border-radius: 50%;
    vertical-align: middle;
    margin-right: 0.4rem;
    margin-top: -2px;
}

/* ── Responsive ─────────────────────────────────────── */
/* Touch devices: always show fav button with amber heart */
@media (hover: none), (max-width: 860px) {
    .fav-btn {
        opacity: 1;
    }
    .fav-btn .heart {
        color: var(--amber);
    }
}

@media (max-width: 860px) {
    .site-header { padding: 0 1.25rem; }

    .nav-toggle { display: block; }

    .site-header nav { position: relative; }
    .site-nav {
        display: none;
        position: absolute;
        top: calc(var(--header-h) / 2 + 12px);
        right: 0;
        background: var(--surface);
        flex-direction: column;
        align-items: flex-start;
        padding: 0.75rem 1.25rem 1rem;
        min-width: 200px;
        border-radius: 0 0 var(--radius) var(--radius);
        box-shadow: 0 6px 20px rgba(0,0,0,0.12);
        border-top: 2px solid var(--crimson);
        gap: 0.75rem;
        z-index: 300;
    }
    .site-nav.open { display: flex; }

    .album-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    .photo-grid  { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
    .page-title  { font-size: 1.5rem; }

    .lightbox-arrow.prev { left: 0.3rem; }
    .lightbox-arrow.next { right: 0.3rem; }
    .lightbox-inner > img { max-width: 96vw; max-height: 70vh; }
}

@media (max-width: 480px) {
    .main-content { padding: 1.25rem 1rem; }
    .album-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
    .photo-grid  { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
    .login-card  { padding: 2rem 1.25rem; margin: 0.75rem; }
    .login-page::before, .login-page::after { width: 80px; }
}