/* ==========================================================
   IMS DIA — Shared styles
   Palette and type taken from the supplied portfolio designs:
   black header, cream hero panels, blue (#2C2CE0) accent,
   clean sans-serif type.
   ========================================================== */

:root {
    --color-black: #111111;
    --color-cream: #F6F4E9;
    --color-blue: #2C2CE0;
    --color-blue-dark: #2222B8;
    --color-text: #1A1A1A;
    --color-muted: #6B6B63;
    --color-border: #E3E0D0;
    --color-white: #FFFFFF;
    --color-danger: #C0392B;
    --color-danger-bg: #FCEEEC;
    --color-success: #1E7A3C;
    --color-success-bg: #EAF6EE;
    --color-pending-bg: #FFF6E0;
    --color-pending: #A66B00;

    --font-sans: 'Helvetica Neue', Arial, -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 6px;
    --max-width: 1180px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

/* ---------- Header ---------- */
.site-header {
    background: var(--color-black);
    padding: 18px 0;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-white);
}

.brand-mark {
    font-size: 30px;
    font-weight: 700;
    font-style: italic;
    letter-spacing: -1px;
}

.brand-text {
    font-size: 11px;
    line-height: 1.3;
    color: #D8D8D8;
}

.brand-text strong {
    display: block;
    color: var(--color-white);
    font-size: 12px;
    letter-spacing: 0.5px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-outline-light {
    background: transparent;
    border-color: rgba(255,255,255,0.5);
    color: var(--color-white);
}
.btn-outline-light:hover { border-color: var(--color-white); }

.btn-primary {
    background: var(--color-blue);
    color: var(--color-white);
}
.btn-primary:hover { background: var(--color-blue-dark); }

.btn-outline-primary {
    background: transparent;
    border-color: var(--color-blue);
    color: var(--color-blue);
}
.btn-outline-primary:hover { background: var(--color-blue); color: var(--color-white); }

.btn-block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-sm { padding: 6px 14px; font-size: 13px; }

/* ---------- Hero / cream panel ---------- */
.hero-panel {
    background: var(--color-cream);
    padding: 48px 0;
}

/* ---------- Auth pages (register/login) ---------- */
.auth-wrap {
    min-height: calc(100vh - 66px);
    background: var(--color-cream);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 16px;
}

.auth-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 40px;
    width: 100%;
    max-width: 560px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.05);
}

.auth-card.auth-card-wide { max-width: 720px; }

.auth-eyebrow {
    font-size: 13px;
    color: var(--color-muted);
    margin: 0 0 4px;
}

.auth-title {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 28px;
    color: var(--color-black);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.form-group { margin-bottom: 18px; }
.form-grid .form-group { margin-bottom: 0; }

.form-group.full { grid-column: 1 / -1; }

label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-text);
}

input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: var(--font-sans);
    background: var(--color-white);
    color: var(--color-text);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 3px rgba(44,44,224,0.12);
}

textarea { resize: vertical; min-height: 90px; }

.field-error {
    color: var(--color-danger);
    font-size: 12.5px;
    margin-top: 5px;
}

input.has-error, textarea.has-error, select.has-error {
    border-color: var(--color-danger);
}

.file-input-wrap {
    border: 1px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 14px;
    font-size: 13px;
    color: var(--color-muted);
}

.alert {
    padding: 13px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 22px;
}

.alert-error {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border: 1px solid #F2CFC8;
}

.alert-success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid #C9E9D3;
}

.alert-pending {
    background: var(--color-pending-bg);
    color: var(--color-pending);
    border: 1px solid #F0E0B0;
}

.auth-footer-link {
    text-align: center;
    margin-top: 22px;
    font-size: 14px;
    color: var(--color-muted);
}

.auth-footer-link a {
    color: var(--color-blue);
    font-weight: 600;
}

/* ---------- Dashboard ---------- */
.dashboard-wrap { background: #FAFAF6; min-height: calc(100vh - 66px); padding: 40px 0 64px; }

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.dashboard-welcome h1 {
    font-size: 24px;
    margin: 0 0 4px;
}
.dashboard-welcome p { margin: 0; color: var(--color-muted); font-size: 14px; }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 36px;
}

.stat-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 22px;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--color-muted);
    margin-bottom: 8px;
}

.stat-card .stat-value {
    font-size: 30px;
    font-weight: 700;
}

.stat-card.stat-total .stat-value { color: var(--color-black); }
.stat-card.stat-pending .stat-value { color: var(--color-pending); }
.stat-card.stat-approved .stat-value { color: var(--color-success); }
.stat-card.stat-rejected .stat-value { color: var(--color-danger); }

.panel {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 26px;
    margin-bottom: 28px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}

.panel-header h2 { font-size: 17px; margin: 0; }

.profile-row {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.profile-avatar {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--color-cream);
    border: 1px solid var(--color-border);
    flex-shrink: 0;
}

.badge {
    display: inline-block;
    padding: 4px 11px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.badge-pending { background: var(--color-pending-bg); color: var(--color-pending); }
.badge-approved { background: var(--color-success-bg); color: var(--color-success); }
.badge-rejected { background: var(--color-danger-bg); color: var(--color-danger); }

.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--color-muted);
}
.empty-state p { margin: 0 0 16px; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-blue);
    color: var(--color-white);
    padding: 28px 0;
    margin-top: 40px;
}
.site-footer .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
}
.site-footer a { opacity: 0.85; }
.site-footer a:hover { opacity: 1; text-decoration: underline; }
.footer-links a { margin-right: 14px; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand .brand-mark { font-size: 22px; }
.footer-brand .brand-text { color: rgba(255,255,255,0.85); }
.footer-brand .brand-text strong { color: var(--color-white); }

/* ==========================================================
   Public Portfolio Pages
   (category landing grid / category masonry / student portfolio)
   ========================================================== */

/* ---- Category landing grid ("DIAian's Portfolio") ---- */
.portfolio-hero {
    text-align: center;
    padding: 64px 20px 40px;
}
.portfolio-hero .eyebrow {
    color: var(--color-blue);
    font-size: 22px;
    font-weight: 600;
    margin: 0;
}
.portfolio-hero h1 {
    color: var(--color-blue);
    font-size: 56px;
    font-weight: 800;
    letter-spacing: 1px;
    margin: 4px 0 0;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    padding: 0 32px 64px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.category-card {
    border-left: 3px solid var(--cat-color, var(--color-blue));
    padding-left: 20px;
}

.category-card h2 {
    font-size: 26px;
    font-weight: 500;
    color: var(--cat-color, var(--color-blue));
    margin: 0 0 18px;
    line-height: 1.2;
}

.category-card .category-image-wrap {
    position: relative;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    border-radius: 2px;
}

.category-card .category-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.category-card .category-arrow {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 52px;
    height: 52px;
    background: var(--cat-color, var(--color-blue));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.category-card a { display: block; }

/* ---- Category detail (masonry) page ---- */
.category-detail-layout {
    display: flex;
    align-items: flex-start;
}

.category-detail-sidebar {
    background: var(--color-cream);
    width: 340px;
    flex-shrink: 0;
    min-height: 480px;
    padding: 56px 40px;
    position: sticky;
    top: 0;
}

.category-detail-sidebar .eyebrow {
    font-size: 15px;
    color: var(--color-text);
    margin: 0 0 4px;
}
.category-detail-sidebar h1 {
    font-size: 34px;
    font-weight: 800;
    margin: 0 0 28px;
    line-height: 1.15;
}

.masonry-content {
    flex: 1;
    padding: 40px;
    column-count: 3;
    column-gap: 20px;
}

.public-pagination {
    column-span: all;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    break-inside: avoid;
}
.public-pagination-info { font-size: 13.5px; color: var(--color-muted); }

.masonry-item {
    break-inside: avoid;
    margin-bottom: 20px;
    position: relative;
    border-radius: 4px;
    overflow: hidden;
}
.masonry-item img { width: 100%; display: block; }

.media-owner-card {
    position: absolute;
    left: 12px;
    bottom: 12px;
    background: rgba(255,255,255,0.95);
    border-radius: 6px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    text-decoration: none;
    color: var(--color-text);
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.15s ease, transform 0.15s ease;
}
.masonry-item:hover .media-owner-card { opacity: 1; transform: translateY(0); }

.media-owner-card img {
    width: 34px; height: 34px; border-radius: 50%; object-fit: cover;
}
.media-owner-card strong { display:block; font-size: 13px; line-height:1.2; }
.media-owner-card span { font-size: 11.5px; color: var(--color-muted); }

/* ---- Student portfolio page ---- */
.portfolio-header {
    background: var(--color-cream);
    padding: 48px 0;
}
.portfolio-header .container {
    display: grid;
    grid-template-columns: auto 1fr 1fr auto;
    gap: 32px;
    align-items: center;
}
.portfolio-avatar {
    width: 110px; height: 110px; border-radius: 50%;
    object-fit: cover; border: 1px solid var(--color-border);
}
.portfolio-header h1 { font-size: 26px; margin: 0 0 4px; }
.portfolio-header .meta { color: var(--color-muted); font-size: 14px; margin: 0; }
.portfolio-header .bio-text { font-size: 14px; line-height: 1.6; margin: 0; }
.portfolio-header .philosophy-note {
    font-size: 13px; color: var(--color-muted); margin: 0 0 14px;
}

.gallery-section { padding: 40px 0 0; }
.gallery-section h3 {
    font-size: 17px; font-weight: 600; margin: 0 0 14px;
    padding: 0 32px; max-width: var(--max-width); margin-left: auto; margin-right: auto;
}
.gallery-row {
    display: flex; gap: 16px;
    padding: 0 32px 40px;
    max-width: var(--max-width); margin: 0 auto;
    flex-wrap: wrap;
}
.gallery-row .gallery-tile {
    position: relative; flex: 1 1 260px; min-width: 260px;
    aspect-ratio: 16/10; border-radius: 4px; overflow: hidden;
    background: #eee;
}
.gallery-row .gallery-tile img,
.gallery-row .gallery-tile video { width:100%; height:100%; object-fit: cover; }
.gallery-row.single .gallery-tile { flex-basis: 100%; }

.media-count-badge {
    position: absolute; right: 10px; bottom: 10px;
    background: var(--color-blue); color: #fff;
    font-size: 13px; font-weight: 600;
    padding: 4px 10px; border-radius: 4px;
}

.gallery-tile.video-tile video { pointer-events: none; background: #000; }
.gallery-tile.video-tile .video-play-overlay {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 64px; height: 64px;
    background: rgba(0,0,0,0.55);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    padding-left: 4px; /* optically center the triangle */
}
.gallery-tile.video-tile:hover .video-play-overlay { background: rgba(0,0,0,0.75); }

.portfolio-empty { text-align:center; padding: 60px 20px; color: var(--color-muted); }

/* ---------- Project create/edit form ---------- */
.image-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    margin-top: 14px;
}
.image-preview-tile {
    position: relative;
    aspect-ratio: 1;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: var(--color-cream);
}
.image-preview-tile img,
.image-preview-tile video {
    width: 100%; height: 100%; object-fit: cover;
}
.image-preview-remove {
    position: absolute;
    top: 6px; right: 6px;
    width: 24px; height: 24px;
    border-radius: 50%;
    background: rgba(0,0,0,0.65);
    color: #fff;
    border: none;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}
.image-preview-remove:hover { background: rgba(192,57,43,0.9); }

.image-preview-star {
    position: absolute;
    top: 6px; left: 6px;
    width: 26px; height: 26px;
    border-radius: 50%;
    background: rgba(0,0,0,0.55);
    color: rgba(255,255,255,0.85);
    border: none;
    font-size: 15px;
    line-height: 1;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}
.image-preview-star:hover { background: rgba(0,0,0,0.75); color: #fff; }
.image-preview-tile.is-featured {
    outline: 3px solid var(--color-blue);
    outline-offset: 2px;
}
.image-preview-tile.is-featured .image-preview-star {
    background: var(--color-blue);
    color: #fff;
}
.featured-badge {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: var(--color-blue);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    text-align: center;
    padding: 4px 0;
}
.featured-hint {
    font-size: 12px;
    color: var(--color-muted);
    margin-top: 8px;
}

.upload-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    font-size: 13.5px;
    color: var(--color-blue);
    font-weight: 600;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

.upload-hint { font-size: 12.5px; color: var(--color-muted); margin-top: 6px; }

/* Admin-panel-only styles (.admin-nav, .data-table, .filter-tabs,
   etc.) live in /admin/css/admin.css, loaded only by pages under
   /admin/ — not needed by the rest of the site. */

/* ---------- All Students directory grid ---------- */
.students-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 28px;
    padding: 0 32px 64px;
    max-width: var(--max-width);
    margin: 0 auto;
}
.student-card { display: block; }
.student-card .student-card-image-wrap {
    position: relative;
    aspect-ratio: 3/4;
    border-radius: 6px;
    overflow: hidden;
    background: var(--color-cream);
}
.student-card .student-card-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.student-card .student-card-avatar {
    position: absolute;
    left: 12px; bottom: 12px;
    width: 40px; height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}
.student-card .student-card-info { padding: 12px 2px 0; }
.student-card .student-card-name { font-size: 15px; font-weight: 600; color: var(--color-text); margin: 0 0 2px; }
.student-card .student-card-meta { font-size: 12.5px; color: var(--color-muted); margin: 0; }

/* ---------- Lightbox (project image slider) ---------- */
.gallery-tile { cursor: pointer; }
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10,10,10,0.94);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.lightbox-overlay.hidden { display: none; }
.lightbox-image-wrap {
    max-width: 88vw;
    max-height: 84vh;
}
.lightbox-image-wrap img {
    max-width: 88vw;
    max-height: 84vh;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    border-radius: 4px;
}
.lightbox-close {
    position: absolute;
    top: 18px; right: 24px;
    color: #fff;
    font-size: 32px;
    line-height: 1;
    cursor: pointer;
    background: none;
    border: none;
    opacity: 0.85;
}
.lightbox-close:hover { opacity: 1; }
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.12);
    border: none;
    color: #fff;
    font-size: 20px;
    width: 46px; height: 46px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.25); }
.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }
.lightbox-counter {
    position: absolute;
    bottom: 22px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 13.5px;
    background: rgba(255,255,255,0.12);
    padding: 6px 16px;
    border-radius: 20px;
}
@media (max-width: 600px) {
    .lightbox-nav { width: 38px; height: 38px; font-size: 16px; }
    .lightbox-prev { left: 6px; }
    .lightbox-next { right: 6px; }
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
    .form-grid { grid-template-columns: 1fr; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .profile-row { flex-direction: column; align-items: center; text-align: center; }
    .auth-card { padding: 26px; }

    .category-grid { grid-template-columns: 1fr; gap: 32px; }
    .portfolio-hero h1 { font-size: 36px; }

    .category-detail-layout { flex-direction: column; }
    .category-detail-sidebar { width: 100%; position: static; padding: 32px 24px; min-height: auto; }
    .masonry-content { column-count: 1; padding: 24px; }

    .portfolio-header .container { grid-template-columns: 1fr; text-align: center; }
    .portfolio-avatar { margin: 0 auto; }
}