/* ==========================================
   PAGES.CSS
   Scope: Proof of Work & Moments — shared styles
          Tabs · Proof grid/cards · Photo grid
          Moments grid · Lightbox · Filter buttons
   ========================================== */

/* ==========================================
   PROOF FILTER BAR
   ========================================== */
.proof-filter-bar {
    padding: 5rem 5% 2rem;
    text-align: center;
}

.proof-filter-bar__title {
    font-size: clamp(2.2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 1.5rem;
    display: block;
    transition: color var(--transition-theme);
}

body.light .proof-filter-bar__title { color: var(--text-primary-light); }
body.dark  .proof-filter-bar__title { color: var(--text-primary-dark); }


/* ==========================================
   TAB NAVIGATION
   ========================================== */
.proof-tabs {
    display: flex;
    gap: 0.6rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.proof-tab {
    padding: 0.55rem 1.3rem;
    border-radius: var(--radius-pill);
    border: none;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-base);
    transition: all var(--transition-base);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

body.light .proof-tab {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-secondary-light);
    border: 1px solid var(--border-light);
}

body.dark .proof-tab {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary-dark);
    border: 1px solid var(--border-dark);
}

.proof-tab--active,
.proof-tab:hover {
    background: rgba(0, 0, 0, 0.82) !important;
    color: #f0f0f0 !important;
    border-color: transparent !important;
    transform: translateY(-2px);
}
.proof-tab:active { transform: scale(0.95); }

body.dark .proof-tab--active,
body.dark .proof-tab:hover {
    background: rgba(255, 255, 255, 0.88) !important;
    color: #0a0a0a !important;
}

/* Tab fade-in animation */
.proof-section {
    animation: tabFadeIn 0.3s ease;
    padding-top: 0 !important;
}

@keyframes tabFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================
   PROOF CARDS GRID
   ========================================== */
.proof-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 2rem;
    max-width: 760px;
    margin: 0 auto;
}

.proof-card {
    padding: 0;
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.proof-card:hover { transform: translateY(-6px); }

body.light .proof-card:hover { box-shadow: var(--shadow-hover-light); }
body.dark  .proof-card:hover { box-shadow: var(--shadow-hover-dark); }

/* Featured card — spans full width, horizontal layout */
.proof-card--featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 2fr 3fr;
    position: relative;
}
.proof-card--featured::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #7c3aed);
    border-radius: 12px 12px 0 0;
}
.proof-card--featured .proof-card__img {
    height: 100%;
    min-height: 240px;
}
.proof-card--featured .proof-card__body {
    padding: 2rem 2.2rem;
    justify-content: center;
}
.proof-card--featured .proof-card__title {
    font-size: 1.15rem;
}

/* Card image */
.proof-card__img {
    position: relative;
    height: 210px;
    overflow: hidden;
    transition: background var(--transition-theme), border-color var(--transition-theme);
}

/* Subtle bezel/frame around the screenshot — reads like a mockup, not a raw crop */
body.light .proof-card__img { border-bottom: 1px solid rgba(0, 0, 0, 0.07); }
body.dark  .proof-card__img { border-bottom: 1px solid rgba(255, 255, 255, 0.08); }

body.light .proof-card__img { background: rgba(0, 0, 0, 0.04); }
body.dark  .proof-card__img { background: rgba(255, 255, 255, 0.04); }

.proof-card__img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.4s ease;
    display: block;
}

.proof-card:hover .proof-card__img img { transform: scale(1.04); }

.proof-card__img--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
}

.proof-card__img--placeholder::after {
    content: '';
    font-size: 2.5rem;
    opacity: 0.2;
}

/* Click hint — icon in bottom-right corner */
.proof-card__click-hint {
    position: absolute;
    bottom: 10px; right: 10px;
    width: 30px; height: 30px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.75rem;
    opacity: 0;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    pointer-events: none;
    background: rgba(0, 0, 0, 0.55);
    color: white;
}

.proof-card:hover .proof-card__click-hint {
    opacity: 1;
    transform: scale(1.1);
}

/* Badge — glass monochromatic */
.proof-card__badge {
    position: absolute;
    top: 8px; right: 8px;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    letter-spacing: 0.2px;
}

body.light .proof-card__badge {
    background: rgba(255, 255, 255, 0.75);
    color: var(--text-primary-light);
    border: 1px solid rgba(0, 0, 0, 0.10);
}

body.dark .proof-card__badge {
    background: rgba(0, 0, 0, 0.65);
    color: var(--text-primary-dark);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

/* Remove old colored badge variants — all use glass now */
.proof-card__badge--gold,
.proof-card__badge--purple,
.proof-card__badge--blue,
.proof-card__badge--green {
    background: inherit;
    color: inherit;
}

/* Certifications — compact timeline row instead of image-first card.
   Keeps .proof-card class (and all data-* attrs) so the existing modal
   click handler in proof/index.html keeps working unchanged — this is
   purely a CSS layout override via a modifier class. */
.proof-card--timeline {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1.1rem;
    padding: 1rem 1.4rem;
}
.proof-card--timeline .proof-card__img {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    border-radius: var(--radius-md);
    order: 2;
}
.proof-card--timeline .proof-card__badge,
.proof-card--timeline .proof-card__click-hint {
    display: none;
}
.proof-card--timeline .proof-card__body {
    flex: 1;
    padding: 0;
    order: 1;
    flex-direction: row;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.5rem 0.9rem;
}
.proof-card--timeline .proof-card__date {
    flex-shrink: 0;
    width: 92px;
}
.proof-card--timeline .proof-card__title { font-size: 0.92rem; }
.proof-card--timeline .proof-card__issuer { font-size: 0.8rem; }
.proof-card--timeline .proof-card__desc,
.proof-card--timeline .skill-tags {
    display: none; /* still in the DOM for the modal, just hidden from the compact row */
}
@media (max-width: 560px) {
    .proof-card--timeline { flex-wrap: wrap; }
    .proof-card--timeline .proof-card__date { width: auto; }
}

/* Card body */
.proof-card__body {
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.proof-card__date {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    transition: color var(--transition-theme);
}

body.light .proof-card__date { color: var(--text-muted-light); }
body.dark  .proof-card__date { color: var(--text-muted-dark); }

.proof-card__title {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.3;
    transition: color var(--transition-theme);
}

body.light .proof-card__title { color: var(--text-primary-light); }
body.dark  .proof-card__title { color: var(--text-primary-dark); }

.proof-card__issuer {
    font-size: 0.82rem;
    font-weight: 600;
    transition: color var(--transition-theme);
}

body.light .proof-card__issuer { color: var(--text-secondary-light); }
body.dark  .proof-card__issuer { color: var(--text-secondary-dark); }

.proof-card__desc {
    font-size: 0.82rem;
    line-height: 1.6;
    margin-top: 0.2rem;
    transition: color var(--transition-theme);
}

body.light .proof-card__desc { color: var(--text-secondary-light); }
body.dark  .proof-card__desc { color: var(--text-secondary-dark); }

.proof-card__tag {
    align-self: flex-start;
    margin-top: 0.4rem;
    font-size: 0.72rem;
}

/* Exam attempt badge */
.proof-card__attempt {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.7rem;
    border-radius: var(--radius-pill);
    margin-top: 0.4rem;
    width: fit-content;
    transition: background var(--transition-theme), border-color var(--transition-theme), color var(--transition-theme);
}

body.light .proof-card__attempt {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-light);
    color: var(--text-secondary-light);
}

body.dark .proof-card__attempt {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-dark);
    color: var(--text-secondary-dark);
}

/* ==========================================
   CERT MODAL
   ========================================== */
.cert-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.88);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.cert-modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

.cert-modal {
    position: relative;
    width: 100%;
    max-width: 960px;
    max-height: 95vh;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: scale(0.93) translateY(18px);
    transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    flex-direction: column;
}

.cert-modal-overlay.open .cert-modal { transform: scale(1) translateY(0); }

body.light .cert-modal { background: #ffffff; box-shadow: 0 32px 80px rgba(0,0,0,0.20); }
body.dark  .cert-modal { background: #111111; box-shadow: 0 32px 80px rgba(0,0,0,0.75); }

.cert-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.4rem;
    flex-shrink: 0;
    border-bottom: 1px solid;
}

body.light .cert-modal__header { border-color: var(--border-light); }
body.dark  .cert-modal__header { border-color: var(--border-dark); }

.cert-modal__title {
    font-size: 0.92rem;
    font-weight: 700;
    flex: 1;
    margin-right: 1rem;
    transition: color var(--transition-theme);
}

body.light .cert-modal__title { color: var(--text-primary-light); }
body.dark  .cert-modal__title { color: var(--text-primary-dark); }

.cert-modal__counter {
    font-size: 0.78rem;
    font-weight: 600;
    flex-shrink: 0;
    margin-right: 0.8rem;
    transition: color var(--transition-theme);
}

body.light .cert-modal__counter { color: var(--text-muted-light); }
body.dark  .cert-modal__counter { color: var(--text-muted-dark); }

.cert-modal__close {
    width: 30px; height: 30px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    font-family: var(--font-base);
}

body.light .cert-modal__close {
    background: rgba(0,0,0,0.06);
    color: var(--text-primary-light);
}

body.dark .cert-modal__close {
    background: rgba(255,255,255,0.08);
    color: var(--text-primary-dark);
}

.cert-modal__close:hover {
    background: rgba(0,0,0,0.14);
}

body.dark .cert-modal__close:hover {
    background: rgba(255,255,255,0.16);
}

.cert-modal__viewer {
    position: relative;
    flex: 1;
    overflow: auto;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.light .cert-modal__viewer { background: #f2f2f0; }
body.dark  .cert-modal__viewer { background: #1a1a1a; }

.cert-modal__img {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    display: block;
    transition: opacity 0.25s ease;
    padding: 0.5rem;
    cursor: zoom-in;
}

.cert-modal__img.fading { opacity: 0; }

.cert-modal__img.zoomed {
    max-height: none;
    max-width: none;
    width: 100%;
    cursor: zoom-out;
    object-fit: cover;
}

.cert-modal__placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    padding: 3rem;
    text-align: center;
}

.cert-modal__placeholder-icon { font-size: 3.5rem; opacity: 0.15; }

.cert-modal__placeholder-text { font-size: 0.88rem; }

body.light .cert-modal__placeholder-text { color: var(--text-muted-light); }
body.dark  .cert-modal__placeholder-text { color: var(--text-muted-dark); }

.cert-modal__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 38px; height: 38px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 2;
}

body.light .cert-modal__nav {
    background: rgba(255,255,255,0.90);
    color: var(--text-primary-light);
    box-shadow: 0 2px 10px rgba(0,0,0,0.12);
}

body.dark .cert-modal__nav {
    background: rgba(20,20,20,0.90);
    color: var(--text-primary-dark);
    box-shadow: 0 2px 10px rgba(0,0,0,0.45);
}

.cert-modal__nav:hover {
    background: rgba(0,0,0,0.85);
    color: white;
}

body.dark .cert-modal__nav:hover {
    background: rgba(255,255,255,0.90);
    color: #0a0a0a;
}

.cert-modal__nav--prev { left: 0.8rem; }
.cert-modal__nav--next { right: 0.8rem; }

.cert-modal__nav:disabled { opacity: 0.2; cursor: not-allowed; }
.cert-modal__nav:disabled:hover { background: inherit; color: inherit; }

.cert-modal__dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 0.7rem 1rem;
    flex-shrink: 0;
}

.cert-modal__dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: all var(--transition-base);
}

body.light .cert-modal__dot { background: rgba(0,0,0,0.18); }
body.dark  .cert-modal__dot { background: rgba(255,255,255,0.18); }

.cert-modal__dot.active {
    width: 18px;
    border-radius: 3px;
}

body.light .cert-modal__dot.active { background: rgba(0,0,0,0.65); }
body.dark  .cert-modal__dot.active { background: rgba(255,255,255,0.65); }

.cert-modal__footer {
    display: flex;
    gap: 0.8rem;
    padding: 0.8rem 1.4rem 1.2rem;
    flex-wrap: wrap;
    flex-shrink: 0;
    border-top: 1px solid;
    align-items: center;
}

body.light .cert-modal__footer { border-color: var(--border-light); }
body.dark  .cert-modal__footer { border-color: var(--border-dark); }

.cert-modal__btn {
    flex: 1;
    min-width: 120px;
    padding: 0.55rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.80rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    font-family: var(--font-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    color: white;
}

/* Modal buttons — keep brand colors */
.cert-modal__btn--primary {
    background: rgba(0,0,0,0.82);
    color: #f0f0f0;
}

body.dark .cert-modal__btn--primary {
    background: rgba(255,255,255,0.88);
    color: #0a0a0a;
}

.cert-modal__btn--primary:hover { opacity: 0.88; transform: translateY(-1px); }

.cert-modal__btn--ghost {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-primary-light) !important;
}

body.dark .cert-modal__btn--ghost {
    border-color: var(--border-dark);
    color: var(--text-primary-dark) !important;
}

.cert-modal__btn--ghost:hover {
    background: rgba(0,0,0,0.06);
}

body.dark .cert-modal__btn--ghost:hover {
    background: rgba(255,255,255,0.07);
}

/* Keep brand colors for platform buttons */
.cert-modal__btn--youtube { background: #cc0000; }
.cert-modal__btn--youtube:hover { background: #e60000; transform: translateY(-1px); }

.cert-modal__btn--github { background: #24292e; }
.cert-modal__btn--github:hover { background: #333; transform: translateY(-1px); }

.cert-modal__btn--instagram {
    background: linear-gradient(45deg, #f09433, #dc2743, #bc1888);
}
.cert-modal__btn--instagram:hover { opacity: 0.88; transform: translateY(-1px); }

/* Copy credential ID */
.cert-modal__copy-id {
    flex: 0 0 auto;
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    font-family: var(--font-base);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    white-space: nowrap;
}

body.light .cert-modal__copy-id {
    background: rgba(0,0,0,0.05);
    border: 1px solid var(--border-light);
    color: var(--text-secondary-light);
}

body.dark .cert-modal__copy-id {
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-dark);
    color: var(--text-secondary-dark);
}

.cert-modal__copy-id:hover {
    background: rgba(0,0,0,0.10);
}

body.dark .cert-modal__copy-id:hover {
    background: rgba(255,255,255,0.12);
}

.cert-modal__copy-id.copied {
    background: rgba(0,0,0,0.08);
    color: var(--text-primary-light);
}

body.dark .cert-modal__copy-id.copied {
    background: rgba(255,255,255,0.12);
    color: var(--text-primary-dark);
}

/* ==========================================
   PROJECT LINKS
   ========================================== */
.project-links {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.78rem;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-pill);
    text-decoration: none;
    font-weight: 700;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    font-family: var(--font-base);
    color: white;
}

.project-link--github  { background: #24292e; }
.project-link--youtube { background: #cc0000; }
.project-link--instagram { background: linear-gradient(45deg, #f09433, #dc2743, #bc1888); }

.project-link--primary {
    background: rgba(0,0,0,0.78);
    color: #f0f0f0;
}

body.dark .project-link--primary {
    background: rgba(255,255,255,0.82);
    color: #0a0a0a;
}

.project-link--ghost {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-primary-light) !important;
}

body.dark .project-link--ghost {
    border-color: var(--border-dark);
    color: var(--text-primary-dark) !important;
}

.project-link:hover { transform: translateY(-2px); opacity: 0.88; }

/* ==========================================
   PHOTO GRID (Proof photography tab)
   ========================================== */
.proof-photo-desc {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 0.88rem;
    transition: color var(--transition-theme);
}

body.light .proof-photo-desc { color: var(--text-secondary-light); }
body.dark  .proof-photo-desc { color: var(--text-secondary-dark); }

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.photo-item {
    position: relative;
    overflow: hidden;
    padding: 0;
    aspect-ratio: 4/3;
    cursor: pointer;
    border-radius: var(--radius-md);
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
    display: block;
}

.photo-item:hover img { transform: scale(1.06); }

.photo-item--placeholder {
    background: rgba(0,0,0,0.04);
    display: flex;
    align-items: center;
    justify-content: center;
}

body.dark .photo-item--placeholder { background: rgba(255,255,255,0.04); }

.photo-item--placeholder::after {
    content: '';
    font-size: 2.5rem;
    opacity: 0.2;
}

.photo-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(0,0,0,0.68));
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.photo-item:hover .photo-overlay { transform: translateY(0); }

.photo-caption {
    color: white;
    font-size: 0.82rem;
    margin: 0;
}

/* ==========================================
   MOMENTS — FILTER BUTTONS
   ========================================== */
.moments-filters {
    display: flex;
    gap: 0.6rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.moments-filter {
    padding: 0.5rem 1.1rem;
    border-radius: var(--radius-pill);
    border: none;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-base);
    transition: all var(--transition-base);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

body.light .moments-filter {
    background: rgba(0,0,0,0.05);
    color: var(--text-secondary-light);
    border: 1px solid var(--border-light);
}

body.dark .moments-filter {
    background: rgba(255,255,255,0.06);
    color: var(--text-secondary-dark);
    border: 1px solid var(--border-dark);
}

.moments-filter--active,
.moments-filter:hover {
    background: rgba(0,0,0,0.82) !important;
    color: #f0f0f0 !important;
    border-color: transparent !important;
}

body.dark .moments-filter--active,
body.dark .moments-filter:hover {
    background: rgba(255,255,255,0.88) !important;
    color: #0a0a0a !important;
}

/* ==========================================
   MOMENTS GRID
   ========================================== */
.moments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

@media (min-width: 1024px) {
    .moments-grid { grid-template-columns: repeat(4, 1fr); }
}

@keyframes momentIn { from { opacity: 0; } to { opacity: 1; } }

.moment-item {
    position: relative;
    overflow: hidden;
    padding: 0;
    aspect-ratio: 4/3;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: transform var(--transition-base);
    animation: momentIn 0.5s ease both;
}

.moment-item:hover { transform: scale(1.015); }

.moment-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.moment-item:hover img { transform: scale(1.06); }

.moment-item--placeholder {
    background: rgba(0,0,0,0.04);
}

body.dark .moment-item--placeholder { background: rgba(255,255,255,0.04); }

.moment-item--placeholder::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5rem;
    opacity: 0.2;
}

.moment-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(0,0,0,0.72));
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.moment-item:hover .moment-overlay { transform: translateY(0); }

.moment-tag {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 8px;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    background: rgba(255,255,255,0.18);
    color: white;
    backdrop-filter: blur(6px);
}

.moment-caption {
    color: white;
    font-size: 0.80rem;
    margin: 0;
    line-height: 1.4;
}

/* ==========================================
   LIGHTBOX
   ========================================== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox--open { display: flex; }

.lightbox__img {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.lightbox__caption {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 0.88rem;
    opacity: 0.7;
}

.lightbox__close {
    position: absolute;
    top: 1.5rem; right: 1.5rem;
    background: rgba(255,255,255,0.12);
    border: none;
    color: white;
    width: 38px; height: 38px;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.lightbox__close:hover { background: rgba(255,255,255,0.25); }

.lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.12);
    border: none;
    color: white;
    width: 46px; height: 46px;
    border-radius: 50%;
    font-size: 1.6rem;
    cursor: pointer;
    transition: background var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox__nav--prev { left: 1.5rem; }
.lightbox__nav--next { right: 1.5rem; }
.lightbox__nav:hover { background: rgba(255,255,255,0.25); }

/* ==========================================
   ACTIVE NAV LINK
   ========================================== */
.nav-links a.active {
    color: var(--text-primary-light) !important;
}

body.dark .nav-links a.active {
    color: var(--text-primary-dark) !important;
}

/* ==========================================
   SKELETON LOADING
   ========================================== */
@keyframes shimmer {
    0%   { background-position: -600px 0; }
    100% { background-position:  600px 0; }
}

.skeleton {
    border-radius: 12px;
    overflow: hidden;
    background: var(--glass-bg-light);
}
body.dark .skeleton { background: var(--glass-bg-dark); }

.skeleton-line {
    height: 12px;
    border-radius: 6px;
    margin-bottom: 10px;
    background: linear-gradient(90deg, rgba(0,0,0,0.06) 25%, rgba(0,0,0,0.10) 50%, rgba(0,0,0,0.06) 75%);
    background-size: 600px 100%;
    animation: shimmer 1.4s infinite linear;
}
body.dark .skeleton-line {
    background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.10) 50%, rgba(255,255,255,0.05) 75%);
    background-size: 600px 100%;
    animation: shimmer 1.4s infinite linear;
}
.skeleton-line--short  { width: 40%; }
.skeleton-line--medium { width: 65%; }
.skeleton-line--full   { width: 100%; }

.skeleton-img {
    width: 100%;
    height: 160px;
    border-radius: 8px;
    margin-bottom: 12px;
    background: linear-gradient(90deg, rgba(0,0,0,0.06) 25%, rgba(0,0,0,0.10) 50%, rgba(0,0,0,0.06) 75%);
    background-size: 600px 100%;
    animation: shimmer 1.4s infinite linear;
}
body.dark .skeleton-img {
    background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.10) 50%, rgba(255,255,255,0.05) 75%);
    background-size: 600px 100%;
    animation: shimmer 1.4s infinite linear;
}

/* Moments grid skeleton — fills the real 4/3 photo tile shape (no caption block) */
.moment-item.skeleton {
    background: linear-gradient(90deg, rgba(0,0,0,0.06) 25%, rgba(0,0,0,0.10) 50%, rgba(0,0,0,0.06) 75%);
    background-size: 600px 100%;
    animation: shimmer 1.4s infinite linear;
}
body.dark .moment-item.skeleton {
    background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.10) 50%, rgba(255,255,255,0.05) 75%);
    background-size: 600px 100%;
    animation: shimmer 1.4s infinite linear;
}

.skeleton-avatar {
    width: 40px; height: 40px;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.06) 25%, rgba(0,0,0,0.10) 50%, rgba(0,0,0,0.06) 75%);
    background-size: 600px 100%;
    animation: shimmer 1.4s infinite linear;
}
body.dark .skeleton-avatar {
    background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.10) 50%, rgba(255,255,255,0.05) 75%);
    background-size: 600px 100%;
    animation: shimmer 1.4s infinite linear;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
    .proof-filter-bar__title { font-size: 2.2rem; }
    .proof-filter-bar { padding: 4rem 5% 2rem; }
    .proof-grid,
    .photo-grid,
    .moments-grid { grid-template-columns: 1fr; }

    .proof-card--featured {
        grid-template-columns: 1fr;
    }
    .proof-card--featured .proof-card__img {
        height: 210px;
        min-height: unset;
    }
    .lightbox__nav--prev { left: 0.5rem; }
    .lightbox__nav--next { right: 0.5rem; }
    .cert-modal__img { max-height: 50vh; }
}

/* ==========================================
   PROJECT TECH ICONS
   ========================================== */
.proof-card__tech {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 1.4rem;
    margin-top: 0.9rem;
}
body.light .proof-card__tech i { color: #555; }
body.dark  .proof-card__tech i { color: #bbb; }
.proof-card__tech i.colored { color: unset; }

/* ==========================================
   HIDDEN ADMIN ENTRY
   ========================================== */
.contribute-btn {
    position: fixed; bottom: 28px; left: 28px; width: 48px; height: 48px;
    border-radius: 50%; cursor: pointer; z-index: 999;
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    display: flex; align-items: center; justify-content: center; text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
body.light .contribute-btn { background: rgba(0,0,0,0.06); border: 1px solid rgba(0,0,0,0.10); color: #555; box-shadow: 0 4px 16px rgba(0,0,0,0.10); }
body.dark  .contribute-btn { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); color: #aaa; box-shadow: 0 4px 16px rgba(0,0,0,0.40); }
.contribute-btn:hover { transform: scale(1.08); }