/* =====================================================
   Wall of Achievement v2 — Full Premium CSS
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wt@400;700;900&family=Inter:wght@300;400;600&display=swap');

/* ---- Root Belt Colors ---- */
:root {
    --belt-white:  #f5f5f5;
    --belt-yellow: #f5c400;
    --belt-green:  #1aad5e;
    --belt-blue:   #1a6fad;
    --belt-red:    #b52820;
    --belt-black:  #111111;

    /* Shared */
    --transition-smooth: cubic-bezier(0.19, 1, 0.22, 1);
    --panel-transition: 0.65s var(--transition-smooth);
    --card-transition: 0.4s ease;
}

/* =====================================================
   TIER 1 — BELT PORTAL
   ===================================================== */

.belt-portal {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    display: flex;
    overflow: hidden;
    background: #000;
    transition: transform 0.7s var(--transition-smooth), opacity 0.5s ease;
}

/* Individual Panel */
.belt-panel {
    flex: 1;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    transition: flex var(--panel-transition), box-shadow 0.4s ease;
    border-right: 1px solid rgba(255,255,255,0.06);
    user-select: none;
}

.belt-panel:last-child { border-right: none; }

/* Dobok fabric texture overlay */
.belt-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='6' height='6' viewBox='0 0 6 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.06' fill-rule='evenodd'%3E%3Cpath d='M5 0h1L0 6V5zM6 5v1H5z'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

/* Vignette at bottom */
.belt-panel::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 40%;
    background: linear-gradient(to top, rgba(0,0,0,0.5), transparent);
    pointer-events: none;
    z-index: 1;
}

/* Hover — expand + glow */
.belt-panel:hover {
    flex: 2.2;
    z-index: 10;
}

/* Panel gradients */
.panel-white  { background: linear-gradient(160deg, #e8e8e8 0%, #c0c0c0 100%); }
.panel-yellow { background: linear-gradient(160deg, #ffde00 0%, #e6a800 100%); }
.panel-green  { background: linear-gradient(160deg, #22c36e 0%, #12784a 100%); }
.panel-blue   { background: linear-gradient(160deg, #2a8fd4 0%, #12527a 100%); }
.panel-red    { background: linear-gradient(160deg, #d63b30 0%, #7a1a14 100%); }
.panel-black  { background: linear-gradient(160deg, #2a2a2a 0%, #050505 100%); }

/* Glow on hover */
.panel-white:hover  { box-shadow: inset 0 0 80px rgba(255,255,255,0.18), 0 0 40px rgba(255,255,255,0.15); }
.panel-yellow:hover { box-shadow: inset 0 0 80px rgba(255,204,0,0.20),  0 0 40px rgba(255,204,0,0.25); }
.panel-green:hover  { box-shadow: inset 0 0 80px rgba(34,195,110,0.20), 0 0 40px rgba(34,195,110,0.25); }
.panel-blue:hover   { box-shadow: inset 0 0 80px rgba(42,143,212,0.20), 0 0 40px rgba(42,143,212,0.25); }
.panel-red:hover    { box-shadow: inset 0 0 80px rgba(214,59,48,0.22),  0 0 40px rgba(214,59,48,0.28); }
.panel-black:hover  { box-shadow: inset 0 0 80px rgba(255,255,255,0.05),0 0 40px rgba(255,255,255,0.08); }

/* ---- Belt Icon ---- */
.belt-icon-wrapper {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    transform: translateY(8px);
    transition: transform var(--panel-transition);
}

.belt-panel:hover .belt-icon-wrapper {
    transform: translateY(0);
}

.belt-knot {
    width: 80px;
    height: 28px;
    border-radius: 4px;
    margin-bottom: -4px;
    transition: width var(--panel-transition), box-shadow 0.4s;
    position: relative;
}
.belt-knot::before, .belt-knot::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 2px;
}
/* The crossed knot lines */
.belt-knot::before { width: 8px; height: 100%; background: rgba(0,0,0,0.15); }
.belt-knot::after  { width: 100%; height: 8px; background: rgba(0,0,0,0.15); }

.belt-strap {
    width: 120px;
    height: 18px;
    border-radius: 3px;
    opacity: 0.92;
    transition: width var(--panel-transition), box-shadow 0.4s;
}

.belt-panel:hover .belt-knot  { width: 88px;  }
.belt-panel:hover .belt-strap { width: 140px; }

/* Belt colors for knot/strap */
.panel-white  .belt-knot,
.panel-white  .belt-strap  { background: #ddd; box-shadow: 0 2px 12px rgba(0,0,0,0.2); }
.panel-yellow .belt-knot,
.panel-yellow .belt-strap  { background: #ffde00; box-shadow: 0 2px 18px rgba(255,200,0,0.5); }
.panel-green  .belt-knot,
.panel-green  .belt-strap  { background: #1aad5e; box-shadow: 0 2px 18px rgba(26,173,94,0.5); }
.panel-blue   .belt-knot,
.panel-blue   .belt-strap  { background: #1a6fad; box-shadow: 0 2px 18px rgba(26,111,173,0.5); }
.panel-red    .belt-knot,
.panel-red    .belt-strap  { background: #c0392b; box-shadow: 0 2px 18px rgba(192,57,43,0.5); }
.panel-black  .belt-knot,
.panel-black  .belt-strap  { background: #222; box-shadow: 0 2px 18px rgba(255,255,255,0.12); }

.panel-black .belt-knot::before,
.panel-black .belt-knot::after { background: rgba(255,255,255,0.1); }
.panel-white .belt-knot::before,
.panel-white .belt-knot::after { background: rgba(0,0,0,0.2); }

/* Belt glow on hover */
.panel-yellow:hover .belt-strap { box-shadow: 0 0 30px rgba(255,200,0,0.8); }
.panel-green:hover  .belt-strap { box-shadow: 0 0 30px rgba(26,173,94,0.8); }
.panel-blue:hover   .belt-strap { box-shadow: 0 0 30px rgba(26,111,173,0.8); }
.panel-red:hover    .belt-strap { box-shadow: 0 0 30px rgba(192,57,43,0.8); }
.panel-black:hover  .belt-strap { box-shadow: 0 0 30px rgba(255,255,255,0.3); }

/* ---- Rank Label ---- */
.rank-label {
    position: relative;
    z-index: 2;
    margin-top: 1.6rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.rank-name {
    font-family: 'Montserrat', sans-serif;
    font-weight: 900;
    font-size: 0.65rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.55);
    transition: all var(--panel-transition);
    white-space: nowrap;
}

.panel-white .rank-name { color: rgba(0,0,0,0.45); }

.panel-arrow {
    font-size: 0.9rem;
    opacity: 0;
    transform: translateY(-6px);
    transition: all 0.4s ease 0.1s;
    color: rgba(255,255,255,0.7);
}
.panel-white .panel-arrow { color: rgba(0,0,0,0.5); }

.belt-panel:hover .rank-name {
    color: rgba(255,255,255,0.95);
    letter-spacing: 6px;
    font-size: 0.75rem;
}
.panel-white:hover .rank-name { color: rgba(0,0,0,0.85); }

.belt-panel:hover .panel-arrow {
    opacity: 1;
    transform: translateY(0);
}

/* ---- Narrow label on non-hover (vertical writing) ---- */
.belt-panel .panel-rank-vertical {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 0.6rem;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.3);
    margin-top: 2rem;
    z-index: 2;
    position: relative;
    transition: opacity 0.3s;
}
.panel-white .panel-rank-vertical { color: rgba(0,0,0,0.25); }
.belt-panel:hover .panel-rank-vertical { opacity: 0; }

/* =====================================================
   TIER 2 — STUDENT GALLERY
   ===================================================== */

.gallery-section {
    display: none;
    background: #0a0a0a;
    min-height: 100vh;
}

.gallery-top-bar {
    background: #000;
    padding: 1.5rem 0;
    border-bottom: 1px solid #111;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.gallery-top-bar-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Back button */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: #fff;
    padding: 10px 20px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.85rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
    flex-shrink: 0;
    text-decoration: none;
}
.back-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.25);
    transform: translateX(-3px);
}

.belt-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    border-radius: 30px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.gallery-hero {
    padding: 80px 0 50px;
    max-width: 1400px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

.gallery-hero h2 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 900;
    font-size: clamp(2rem, 5vw, 3.5rem);
    text-transform: uppercase;
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 1rem;
}

.gallery-hero p {
    font-size: 1rem;
    color: #666;
    max-width: 500px;
    line-height: 1.7;
}

/* ---- Masonry Grid ---- */
.masonry-grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 6rem;
    columns: 3 300px;
    column-gap: 24px;
}

@media (max-width: 900px)  { .masonry-grid { columns: 2; } }
@media (max-width: 580px)  { .masonry-grid { columns: 1; } }

/* ---- Story Card ---- */
.story-card {
    break-inside: avoid;
    margin-bottom: 24px;
    background: #141414;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.06);
    cursor: pointer;
    position: relative;
    transition: transform var(--card-transition),
                box-shadow var(--card-transition),
                border-color var(--card-transition);
    animation: cardFadeIn 0.5s ease both;
}

.story-card:hover {
    transform: translateY(-10px) scale(1.01);
    border-color: var(--card-accent, rgba(255,255,255,0.15));
    box-shadow: 0 24px 60px rgba(0,0,0,0.6),
                0 0 0 1px var(--card-accent, transparent);
}

/* Top accent line */
.story-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--card-accent, transparent);
    opacity: 0.8;
    z-index: 2;
    transition: opacity 0.3s;
}
.story-card:hover::before { opacity: 1; }

/* ---- Card Media ---- */
.card-media {
    width: 100%;
    position: relative;
    overflow: hidden;
    background: #1a1a1a;
}

.card-media img,
.card-media video {
    width: 100%;
    aspect-ratio: 3 / 4;
    display: block;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.story-card:hover .card-media img,
.story-card:hover .card-media video {
    transform: scale(1.04);
}

/* ---- Card Body ---- */
.card-content {
    padding: 1.4rem 1.4rem 1.6rem;
}

.card-profile {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.profile-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--card-accent, rgba(255,255,255,0.2));
    flex-shrink: 0;
}

.student-identity h4 {
    margin: 0 0 2px;
    font-size: 0.95rem;
    font-weight: 700;
    color: #eee;
}

.student-identity .rank-pill {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--card-accent, #888);
    background: rgba(255,255,255,0.04);
    padding: 2px 8px;
    border-radius: 20px;
    border: 1px solid var(--card-accent, transparent);
    opacity: 0.8;
}

.achievement-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    margin: 0 0 0.6rem;
    line-height: 1.3;
}

.story-snippet {
    font-size: 0.88rem;
    color: #777;
    line-height: 1.65;
    margin: 0;

    /* Reveal on hover - clamp to 2 lines normally */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: all 0.4s ease;
    max-height: 2.8em;
}

.story-card:hover .story-snippet {
    -webkit-line-clamp: unset;
    max-height: 200px;
    color: #aaa;
}

/* ---- Empty / Loading States ---- */
.gallery-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem;
    gap: 1rem;
    color: #333;
    font-family: 'Inter', sans-serif;
}

.gallery-state .state-icon {
    font-size: 3rem;
    opacity: 0.3;
}

.gallery-state p {
    font-size: 1rem;
    color: #444;
}

/* ---- Spinner ---- */
@keyframes spin {
    to { transform: rotate(360deg); }
}
.fa-spin { animation: spin 1s linear infinite; }

/* ---- Card Stagger Animation ---- */
@keyframes cardFadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

.story-card:nth-child(1)  { animation-delay: 0.05s; }
.story-card:nth-child(2)  { animation-delay: 0.10s; }
.story-card:nth-child(3)  { animation-delay: 0.15s; }
.story-card:nth-child(4)  { animation-delay: 0.20s; }
.story-card:nth-child(5)  { animation-delay: 0.25s; }
.story-card:nth-child(6)  { animation-delay: 0.30s; }
.story-card:nth-child(7)  { animation-delay: 0.35s; }
.story-card:nth-child(8)  { animation-delay: 0.40s; }
.story-card:nth-child(9)  { animation-delay: 0.45s; }
.story-card:nth-child(n+10) { animation-delay: 0.50s; }

/* ---- Portal Exit Animation ---- */
.belt-portal.is-exiting {
    transform: translateY(-100%);
    opacity: 0;
}

/* ---- Gallery Entry ---- */
.gallery-section.is-visible {
    animation: galleryIn 0.6s ease forwards;
}

@keyframes galleryIn {
    from { opacity: 0; transform: translateY(40px); }
    to   { opacity: 1; transform: translateY(0); }
}