/* ============================================================
   IsoStudio Galleries — Public Stylesheet
   Premium photography gallery aesthetic
   ============================================================ */

/* ── CSS Custom Properties ─────────────────────────────────── */
:root {
    --iso-black:       #0a0a0a;
    --iso-charcoal:    #1a1a1a;
    --iso-dark:        #2a2a2a;
    --iso-slate:       #4a4a4a;
    --iso-mid:         #888888;
    --iso-silver:      #b0b0b0;
    --iso-light:       #e8e6e1;
    --iso-cream:       #f5f3ef;
    --iso-white:       #fafaf8;
    --iso-pure-white:  #ffffff;
    --iso-gold:        #c9a96e;
    --iso-gold-light:  #d4ba86;
    --iso-gold-dark:   #a68b53;

    --font-display:    'Cormorant Garamond', 'Georgia', serif;
    --font-body:       'Outfit', 'Helvetica Neue', sans-serif;
    --font-mono:       'JetBrains Mono', monospace;

    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    --shadow-sm:       0 1px 3px rgba(0,0,0,0.06);
    --shadow-md:       0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg:       0 12px 40px rgba(0,0,0,0.12);
    --shadow-xl:       0 20px 60px rgba(0,0,0,0.16);

    --radius-sm:       4px;
    --radius-md:       8px;
    --radius-lg:       12px;

    --header-height:   72px;
}

/* ── Reset / Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--iso-charcoal);
    background-color: var(--iso-white);
    line-height: 1.7;
    letter-spacing: 0.01em;
    margin: 0;
    overflow-x: hidden;
}

::selection {
    background: var(--iso-gold);
    color: var(--iso-pure-white);
}

img { max-width: 100%; height: auto; display: block; }
a   { color: var(--iso-charcoal); text-decoration: none; transition: color var(--transition-base); }
a:hover { color: var(--iso-gold); }

/* ── Typography ────────────────────────────────────────────── */
.font-display { font-family: var(--font-display); }
.font-body    { font-family: var(--font-body); }

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.display-hero {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 6vw, 5.5rem);
    font-weight: 300;
    line-height: 1.05;
    letter-spacing: -0.03em;
}

.display-section {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.subtitle {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 1.05rem;
    color: var(--iso-mid);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.label-sm {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--iso-mid);
}

/* ── Header / Navigation ───────────────────────────────────── */
.iso-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    background: rgba(250, 250, 248, 0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0,0,0,0.04);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.iso-header.scrolled {
    background: rgba(250, 250, 248, 0.97);
    box-shadow: 0 1px 12px rgba(0,0,0,0.06);
}

.iso-logo {
    font-family: var(--font-display);
    font-size: 1.55rem;
    font-weight: 500;
    color: var(--iso-black);
    letter-spacing: -0.02em;
}
.iso-logo span {
    color: var(--iso-gold);
    font-weight: 400;
}

.iso-nav {
    display: flex;
    align-items: center;
    gap: 2.2rem;
}
.iso-nav a {
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--iso-slate);
    position: relative;
    padding: 4px 0;
}
.iso-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--iso-gold);
    transition: width var(--transition-base);
}
.iso-nav a:hover { color: var(--iso-charcoal); }
.iso-nav a:hover::after { width: 100%; }

/* Mobile nav toggle */
.iso-nav-toggle {
    display: none;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
}
.iso-nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--iso-charcoal);
    margin: 5px 0;
    transition: var(--transition-base);
}

@media (max-width: 768px) {
    .iso-nav-toggle { display: block; }
    .iso-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--iso-white);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-base);
    }
    .iso-nav.open { opacity: 1; pointer-events: all; }
    .iso-nav a { font-size: 1.1rem; }
}

/* ── Content Wrapper ───────────────────────────────────────── */
.iso-content {
    padding-top: var(--header-height);
    min-height: 100vh;
}

/* ── Hero Section ──────────────────────────────────────────── */
.iso-hero {
    position: relative;
    height: 85vh;
    min-height: 500px;
    max-height: 900px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: var(--iso-black);
}

.iso-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.55;
    transition: transform 8s ease;
}
.iso-hero:hover .iso-hero-bg {
    transform: scale(1.03);
}

.iso-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(0,0,0,0.1) 0%,
        rgba(0,0,0,0.35) 60%,
        rgba(0,0,0,0.55) 100%
    );
}

.iso-hero-content {
    position: relative;
    z-index: 2;
    color: var(--iso-pure-white);
    padding: 2rem;
    max-width: 800px;
}

.iso-hero-content .display-hero {
    margin-bottom: 1rem;
    text-shadow: 0 2px 30px rgba(0,0,0,0.3);
}

.iso-hero-content .subtitle {
    color: rgba(255,255,255,0.75);
    font-size: 0.85rem;
}

/* Gallery-specific hero */
.iso-gallery-hero {
    height: 70vh;
    min-height: 400px;
    max-height: 750px;
}

.iso-gallery-hero .iso-hero-meta {
    margin-top: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.iso-gallery-hero .iso-hero-meta span {
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.65);
    font-weight: 400;
}

/* ── Section Spacing ───────────────────────────────────────── */
.iso-section {
    padding: clamp(4rem, 8vw, 8rem) clamp(1.5rem, 4vw, 4rem);
}

.iso-section-header {
    text-align: center;
    margin-bottom: clamp(3rem, 5vw, 5rem);
}

.iso-section-header .subtitle {
    margin-bottom: 0.8rem;
}

.iso-divider {
    width: 40px;
    height: 1px;
    background: var(--iso-gold);
    margin: 1.5rem auto;
}

/* ── Gallery Grid / Masonry ────────────────────────────────── */
.iso-gallery-grid {
    columns: 3;
    column-gap: 16px;
    max-width: 1400px;
    margin: 0 auto;
}

.iso-gallery-grid .iso-grid-item {
    break-inside: avoid;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: var(--iso-light);
}

.iso-gallery-grid .iso-grid-item img {
    width: 100%;
    display: block;
    transition: transform var(--transition-slow), opacity var(--transition-base);
    opacity: 0;
}

.iso-gallery-grid .iso-grid-item img.loaded {
    opacity: 1;
}

.iso-gallery-grid .iso-grid-item:hover img {
    transform: scale(1.03);
}

.iso-gallery-grid .iso-grid-item .iso-media-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.4) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: flex-end;
    padding: 1.2rem;
}

.iso-gallery-grid .iso-grid-item:hover .iso-media-overlay {
    opacity: 1;
}

.iso-media-overlay .caption {
    color: var(--iso-pure-white);
    font-size: 0.85rem;
    font-weight: 300;
}

/* Favorite button */
.iso-fav-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 5;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.85);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.8);
    transition: var(--transition-base);
    backdrop-filter: blur(8px);
}
.iso-grid-item:hover .iso-fav-btn,
.iso-fav-btn.active {
    opacity: 1;
    transform: scale(1);
}
.iso-fav-btn.active {
    background: var(--iso-gold);
    color: var(--iso-pure-white);
}
.iso-fav-btn svg { width: 18px; height: 18px; }

/* Video indicator */
.iso-video-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 5;
    padding: 4px 10px;
    background: rgba(0,0,0,0.6);
    color: white;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: 3px;
    backdrop-filter: blur(8px);
}

@media (max-width: 992px) {
    .iso-gallery-grid { columns: 2; }
}
@media (max-width: 576px) {
    .iso-gallery-grid { columns: 1; column-gap: 12px; }
    .iso-gallery-grid .iso-grid-item { margin-bottom: 12px; }
}

/* ── Gallery Cards (listing page) ──────────────────────────── */
.iso-gallery-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.iso-gallery-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: var(--iso-pure-white);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.iso-gallery-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.iso-gallery-card .card-image {
    position: relative;
    aspect-ratio: 3/2;
    overflow: hidden;
    background: var(--iso-light);
}
.iso-gallery-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.iso-gallery-card:hover .card-image img {
    transform: scale(1.05);
}

.iso-gallery-card .card-body {
    padding: 1.5rem 1.8rem 1.8rem;
}

.iso-gallery-card .card-category {
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--iso-gold);
    margin-bottom: 0.6rem;
}

.iso-gallery-card .card-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--iso-charcoal);
    margin-bottom: 0.4rem;
    line-height: 1.3;
}

.iso-gallery-card .card-subtitle {
    font-size: 0.88rem;
    color: var(--iso-mid);
    font-weight: 300;
}

.iso-gallery-card .card-meta {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--iso-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--iso-silver);
}

@media (max-width: 576px) {
    .iso-gallery-cards { grid-template-columns: 1fr; }
}

/* ── Password / Invite Page ────────────────────────────────── */
.iso-access-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: var(--iso-cream);
}

.iso-access-card {
    width: 100%;
    max-width: 420px;
    background: var(--iso-pure-white);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.iso-access-card .lock-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.5rem;
    color: var(--iso-gold);
}

.iso-access-card h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.iso-access-card p {
    color: var(--iso-mid);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.iso-access-card input[type="password"],
.iso-access-card input[type="text"] {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--iso-light);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    text-align: center;
    letter-spacing: 0.08em;
    transition: border-color var(--transition-base);
    outline: none;
}
.iso-access-card input:focus {
    border-color: var(--iso-gold);
}

/* ── Buttons ───────────────────────────────────────────────── */
.iso-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.iso-btn-primary {
    background: var(--iso-charcoal);
    color: var(--iso-pure-white);
}
.iso-btn-primary:hover {
    background: var(--iso-black);
    color: var(--iso-pure-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.iso-btn-gold {
    background: var(--iso-gold);
    color: var(--iso-pure-white);
}
.iso-btn-gold:hover {
    background: var(--iso-gold-dark);
    color: var(--iso-pure-white);
}

.iso-btn-outline {
    background: transparent;
    color: var(--iso-charcoal);
    border: 1px solid var(--iso-charcoal);
}
.iso-btn-outline:hover {
    background: var(--iso-charcoal);
    color: var(--iso-pure-white);
}

.iso-btn-white {
    background: rgba(255,255,255,0.15);
    color: var(--iso-pure-white);
    border: 1px solid rgba(255,255,255,0.35);
    backdrop-filter: blur(8px);
}
.iso-btn-white:hover {
    background: rgba(255,255,255,0.25);
    color: var(--iso-pure-white);
}

/* ── Footer ────────────────────────────────────────────────── */
.iso-footer {
    padding: 4rem clamp(1.5rem, 4vw, 4rem) 2rem;
    background: var(--iso-charcoal);
    color: rgba(255,255,255,0.5);
    text-align: center;
}

.iso-footer .footer-logo {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--iso-pure-white);
    margin-bottom: 1rem;
}
.iso-footer .footer-logo span { color: var(--iso-gold); }

.iso-footer .footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}
.iso-footer .footer-links a {
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.45);
}
.iso-footer .footer-links a:hover { color: var(--iso-gold); }

.iso-footer .footer-copy {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.3);
}

/* ── Utility ───────────────────────────────────────────────── */
.text-gold  { color: var(--iso-gold) !important; }
.bg-cream   { background: var(--iso-cream); }
.bg-charcoal { background: var(--iso-charcoal); color: var(--iso-pure-white); }

/* Smooth entrance animation */
.iso-fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.iso-fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading skeleton */
.iso-skeleton {
    background: linear-gradient(90deg, var(--iso-light) 25%, var(--iso-cream) 50%, var(--iso-light) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}
@keyframes skeleton-shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Page transitions */
.iso-page-enter {
    animation: pageEnter 0.5s ease forwards;
}
@keyframes pageEnter {
    from { opacity: 0; transform: translateY(15px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Lightbox overrides for GLightbox ──────────────────────── */
.glightbox-clean .gslide-description {
    font-family: var(--font-body);
    background: transparent !important;
}
.glightbox-clean .gslide-title {
    font-family: var(--font-display) !important;
    font-weight: 400 !important;
}

/* ── Alerts ────────────────────────────────────────────────── */
.iso-alerts {
    position: fixed;
    top: calc(var(--header-height) + 12px);
    right: 16px;
    z-index: 9999;
    max-width: 400px;
}
.iso-alerts .alert {
    font-size: 0.88rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: none;
    margin-bottom: 8px;
}

/* ── 404 ───────────────────────────────────────────────────── */
.iso-404 {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}
.iso-404 h1 {
    font-family: var(--font-display);
    font-size: clamp(6rem, 15vw, 12rem);
    font-weight: 300;
    color: var(--iso-light);
    line-height: 1;
}
.iso-404 p {
    color: var(--iso-mid);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* ── Pagination ────────────────────────────────────────────── */
.iso-pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 3rem;
}
.iso-pagination a,
.iso-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    font-size: 0.82rem;
    border-radius: var(--radius-sm);
    color: var(--iso-slate);
    transition: var(--transition-base);
}
.iso-pagination a:hover {
    background: var(--iso-cream);
    color: var(--iso-charcoal);
}
.iso-pagination .active {
    background: var(--iso-charcoal);
    color: var(--iso-pure-white);
}

/* ── Homepage Featured ─────────────────────────────────────── */
.iso-home-intro {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.iso-home-intro p {
    font-size: 1.05rem;
    color: var(--iso-slate);
    line-height: 1.8;
}