:root {
    --bg: #f4f2ee;
    --fg: #1a1a1a;
    --muted: #888;
    --border: #ddd8cf;
    --gold: #c9a84c;
    --gold-light: #e8d08a;
    --red: #b91c1c;
    --spectra: #6a3bbf;
    --font-serif: 'Georgia', 'Times New Roman', serif;
    --font-sans: 'Helvetica Neue', Arial, sans-serif;
}

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

body {
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    padding-top: 5.5rem;
}

header h1, #global-header-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: normal;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--muted);
    display: inline-block;
}

header h1 em, #header-main-title {
    font-style: normal;
    color: var(--fg);
}

#global-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(244, 242, 238, 0.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 1.5rem;
    text-align: center;
}

.back-link {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    font-size: 0.9rem;
    font-family: var(--font-sans);
    transition: color .15s;
}

.back-link:hover {
    color: var(--fg);
}

.header-extra-links {
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 1.25rem;
    align-items: center;
}

.header-btn {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding: .5rem 0;
    font-size: .68rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--muted) !important;
    font-family: var(--font-sans);
    font-weight: 500;
    transition: color .15s;
    cursor: pointer;
}

.header-btn:hover {
    color: var(--fg) !important;
}

.header-btn.coffee {
    color: var(--gold) !important;
}

.header-btn.coffee:hover {
    color: #b09038 !important;
}

/* Pack Opener Platform Sections */
.pack-section {
    text-align: center;
    margin-bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pack-row {
    display: inline-flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 0.5rem;
}

.pack-wrapper {
    width: 150px;
    height: 224px;
    cursor: grab;
    position: relative;
    touch-action: none;
}

.pack {
    width: 100%;
    height: 100%;
    border-radius: 6px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    transition: transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.pack-tearing {
    animation: tearOut .75s forwards cubic-bezier(0.25, 1, 0.5, 1);
}

@keyframes tearOut {
    0% { transform: scale(1) rotate(0deg); opacity: 1; filter: blur(0); }
    40% { transform: scale(0.96) translateY(-8px) rotate(-2deg); opacity: 0.9; }
    100% { transform: scale(0.7) translateY(40px) rotate(-5deg); opacity: 0; filter: blur(4px); }
}

.pack-counter {
    display: grid;
    grid-template-columns: auto auto;
    gap: .3rem .8rem;
    text-align: left;
    border-left: 1px solid var(--border);
    padding-left: 2rem;
}

.counter-num {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    line-height: 1;
    color: var(--fg);
    grid-row: span 2;
}

.counter-num--session { color: var(--muted); }
.counter-label { font-size: .62rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); align-self: center; }

.pack-action-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 1.5rem;
    width: 100%;
}

.open-btn {
    background: var(--fg);
    color: var(--bg);
    border: none;
    padding: .65rem 2.25rem;
    font-size: .78rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: 3px;
    transition: background .15s, transform .10s;
    font-family: var(--font-sans);
    margin-bottom: 1rem;
}

.open-btn:hover:not(:disabled) { 
    background: #333;
    transform: translateY(-1px);
    box-shadow: none;
}
.open-btn:disabled { opacity: 0.5; cursor: default; transform: none; }

.pack-instructions { font-size: .68rem; color: var(--muted); line-height: 1.5; }

/* Grid Systems & Card Slots */
.section-divider {
    font-size: .65rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted);
    display: flex; align-items: center; gap: .75rem; margin-bottom: 2rem; opacity: 0; transition: opacity .3s;
}
.section-divider.visible { opacity: 1; }
.section-divider::after, .section-divider::before { content: ""; flex: 1; height: 1px; background: var(--border); }

.cards-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

@media(max-width: 480px) {
    .cards-row { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
}

.card-slot { text-align: center; }
.card {
    position: relative; aspect-ratio: 2.5/3.5; background: #eee; border-radius: 6px;
    overflow: hidden; border: 1px solid var(--border); opacity: 0; transform: translateY(12px);
    transition: transform .4s cubic-bezier(0.18, 0.89, 0.32, 1.15), opacity .4s, box-shadow .2s;
    cursor: pointer;
}
.card.revealed { opacity: 1; transform: translateY(0); }
.card img { width: 100%; height: 100%; object-fit: cover; }
.card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.15); }

.flip-hint { font-size: .58rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-top: .5rem; }

/* Dashboard Card Setup Elements */
.category-block { margin-bottom: 3rem; }
.category-label { font-size: 1.1rem; font-family: var(--font-serif); font-weight: normal; color: var(--fg); margin-bottom: .4rem; }
.category-sub { font-size: .65rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.25rem; display: flex; align-items: center; gap: .75rem; }
.category-sub::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.sets-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1.25rem; }

.set-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; color: inherit; display: block; transition: border-color .15s, box-shadow .15s, transform .15s; cursor: pointer; }
.set-card:hover { border-color: var(--gold); box-shadow: 0 6px 24px rgba(0, 0, 0, .1); transform: translateY(-3px); }

/* Option 2: Vertical Pack Alignment Rules */
.set-cover { 
    height: 160px; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    position: relative; 
    overflow: hidden; 
    background: #111; 
}
.set-cover img { 
    width: 100%; 
    height: 100%; 
    object-fit: contain; 
    padding: 4px 0;
}

.set-body { padding: .85rem 1rem 1rem; border-top: 1px solid var(--border); }
.set-name { font-family: var(--font-serif); font-size: 1rem; font-weight: normal; margin-bottom: .2rem; line-height: 1.3; }
.set-meta { font-size: .68rem; color: var(--muted); letter-spacing: .05em; margin-bottom: .65rem; }
.set-progress-track { height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; margin-bottom: .35rem; }
.set-progress-bar { height: 100%; background: var(--gold); border-radius: 2px; transition: width .4s ease; }
.set-progress-label { font-size: .6rem; color: var(--muted); letter-spacing: .06em; }

/* Checklist Progress and Grid Interfaces */
.collection-header { display: flex; justify-content: space-between; align-items: flex-end; padding-bottom: .6rem; border-bottom: 1px solid var(--border); margin-bottom: 1.25rem; }
.collection-title { font-family: var(--font-serif); font-size: 1.1rem; font-weight: normal; }
.collection-sub { font-size: .68rem; color: var(--muted); margin-top: .15rem; }
.collection-count { font-size: .75rem; font-family: var(--font-serif); color: var(--fg); }

.collection-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(68px, 1fr)); gap: .5rem; margin-bottom: 3rem; }
.col-slot { aspect-ratio: 2.5/3.5; background: #fff; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; cursor: default; }
.col-slot.no-image { padding: .25rem; }
.col-slot.filled { cursor: pointer; border-color: #aaa; }
.col-slot img { width: 100%; height: 100%; object-fit: cover; }
.col-num { font-size: .65rem; font-weight: 600; color: var(--muted); margin-bottom: .1rem; }
.col-name { font-size: .48rem; color: #aaa; line-height: 1.2; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Lightbox Modal Canvas Frame */
#lightbox { position: fixed; inset: 0; background: rgba(244,242,238,0.98); z-index: 2000; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity .2s; }
#lightbox.open { opacity: 1; pointer-events: auto; }
#lightbox img { max-height: 80vh; max-width: 42vw; border-radius: 8px; box-shadow: 0 20px 50px rgba(0,0,0,0.25); object-fit: contain; }
#lightbox-close { position: absolute; top: 2rem; right: 2rem; background: none; border: none; font-size: 2.5rem; color: var(--muted); cursor: pointer; }
#lightbox-close:hover { color: var(--fg); }

/* Rarity Separator Rails */
.mtg-row, .spectra-row { margin-bottom: 1.5rem; padding: 0; background: none; border: none; }
.mtg-row-label, .spectra-label { font-size: .65rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 0.75rem; display: flex; align-items: center; gap: .5rem; font-weight: 600; }
.mtg-row-label .pip, .spectra-label .pip { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.mtg-row-label.rare { color: #b08d24; }
.mtg-row-label.rare .pip { background: #b08d24; }
.mtg-row-label.uncommon { color: #6e7987; }
.mtg-row-label.uncommon .pip { background: #6e7987; }
.mtg-row-label.common { color: #888; }
.mtg-row-label.common .pip { background: #888; }

/* About and Platform Info Modals Overlay */
.about-modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.6); backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center; z-index: 2000; opacity: 0; pointer-events: none; transition: opacity 0.2s ease; }
.about-modal-overlay.open { opacity: 1; pointer-events: auto; }
.about-modal-content { background: #fff; padding: 2rem; border-radius: 12px; max-width: 500px; width: 90%; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25); position: relative; transform: translateY(20px); transition: transform 0.2s ease; }
.about-modal-overlay.open .about-modal-content { transform: translateY(0); }
.about-modal-close { position: absolute; top: 1rem; right: 1.25rem; background: none; border: none; font-size: 1.75rem; cursor: pointer; color: var(--muted); line-height: 1; }
.about-modal-close:hover { color: var(--fg); }
.about-modal-content h3 { margin-top: 0; font-family: var(--font-serif); font-size: 1.5rem; font-weight: normal; margin-bottom: 1rem; }
.about-modal-content p { font-size: 0.95rem; line-height: 1.6; color: #444; margin-bottom: 1rem; }
.set-meta-about-trigger { text-decoration: none; color: var(--gold); font-weight: normal; cursor: pointer; }
.set-meta-about-trigger:hover { text-decoration: underline; color: #b09038; }
.spectra-row { margin-bottom: 2rem; background: rgba(0,0,0,0.02); padding: 1.25rem; border-radius: 8px; border: 1px dashed var(--border); }
.spectra-label { font-size: .65rem; letter-spacing: .12em; text-transform: uppercase; color: var(--spectra); margin-bottom: 1rem; display: flex; align-items: center; gap: .5rem; font-weight: 500; }
.spectra-label .pip { width: 6px; height: 6px; background: var(--spectra); border-radius: 50%; display: inline-block; }