/* ==========================================================================
   CryptoSphere - PNL Proof & Signal Gallery Stylesheet
   Institutional Design System with Dual Theme Support (Dark & Light)
   ========================================================================== */

:root {
    /* Dark Theme (Default) */
    --bg-primary: #080b11;
    --bg-secondary: #0f141f;
    --bg-tertiary: #161e2e;
    --card-bg: rgba(16, 22, 34, 0.75);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-hover-border: rgba(0, 240, 255, 0.4);
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-cyan: #00f0ff;
    --accent-emerald: #00f298;
    --accent-rose: #ff3b69;
    --accent-purple: #8b5cf6;
    --accent-blue: #0284c7;
    --gold: #f59e0b;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 25px rgba(0, 240, 255, 0.2);
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-border: rgba(0, 0, 0, 0.1);
    --card-hover-border: rgba(2, 132, 199, 0.5);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --accent-cyan: #0284c7;
    --accent-emerald: #059669;
    --accent-rose: #e11d48;
    --accent-purple: #7c3aed;
    --accent-blue: #0369a1;
    --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 25px rgba(2, 132, 199, 0.15);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Background Atmospheric Glow */
.bg-ambient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.ambient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
}

.orb-1 {
    top: -10%;
    left: 20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-cyan), transparent 70%);
}

.orb-2 {
    bottom: 20%;
    right: 10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-emerald), transparent 70%);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.gallery-header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: rgba(8, 11, 17, 0.85);
    border-bottom: 1px solid var(--card-border);
    transition: background-color 0.3s ease;
}

[data-theme="light"] .gallery-header {
    background: rgba(255, 255, 255, 0.9);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
}

.brand-badge {
    background: rgba(0, 240, 255, 0.12);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 240, 255, 0.3);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 6px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.header-nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-nav-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--card-border);
    background: var(--bg-secondary);
    transition: all 0.2s ease;
}

.btn-nav-back:hover {
    color: var(--text-primary);
    border-color: var(--accent-cyan);
}

.theme-toggle-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
    border-color: var(--accent-cyan);
    transform: rotate(15deg);
}

.btn-login {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent-cyan), #0099ff);
    color: #040810 !important;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.88rem;
    padding: 9px 18px;
    border-radius: 9999px;
    transition: all 0.25s ease;
    box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
}

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 240, 255, 0.45);
}

/* Hero Section */
.gallery-hero {
    padding: 50px 0 35px;
    text-align: center;
    position: relative;
}

.hero-pill-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 242, 152, 0.12);
    border: 1px solid rgba(0, 242, 152, 0.3);
    color: var(--accent-emerald);
    padding: 6px 16px;
    border-radius: 9999px;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-emerald);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-emerald);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 152, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(0, 242, 152, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 242, 152, 0); }
}

.gallery-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 16px;
}

.gradient-text {
    background: linear-gradient(135deg, #00f0ff 0%, #00f298 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gallery-subtitle {
    font-size: 1.12rem;
    color: var(--text-secondary);
    max-width: 780px;
    margin: 0 auto 35px;
}

/* Verification Assurance Card */
.verification-banner {
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(0, 242, 152, 0.05));
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: var(--radius-md);
    padding: 18px 24px;
    max-width: 900px;
    margin: 0 auto 40px;
    display: flex;
    align-items: center;
    gap: 18px;
    text-align: left;
}

.verification-icon-wrap {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(0, 240, 255, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
}

.verification-text h4 {
    font-family: var(--font-heading);
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.verification-text p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Quick Metrics Bar */
.metrics-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 45px;
}

.metric-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    backdrop-filter: blur(12px);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
    border-color: var(--card-hover-border);
}

.metric-value {
    font-family: var(--font-heading);
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.metric-label {
    font-size: 0.82rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
}

/* Interactive Filter & Search Bar */
.toolbar-wrap {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.filter-pills {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 7px 16px;
    border-radius: 9999px;
    font-size: 0.86rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-cyan);
}

.filter-btn.active {
    background: rgba(0, 240, 255, 0.15);
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.search-sort-group {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-grow: 1;
    max-width: 460px;
    justify-content: flex-end;
}

.search-input-wrap {
    position: relative;
    width: 100%;
    max-width: 260px;
}

.search-input-wrap svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 8px 12px 8px 36px;
    font-size: 0.88rem;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s ease;
}

.search-input:focus {
    border-color: var(--accent-cyan);
}

.sort-select {
    background: var(--bg-tertiary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 0.86rem;
    color: var(--text-primary);
    outline: none;
    cursor: pointer;
}

/* Proofs Cards Grid */
.proofs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(370px, 1fr));
    gap: 28px;
    margin-bottom: 60px;
}

.proof-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(14px);
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    display: flex;
    flex-direction: column;
}

.proof-card:hover {
    transform: translateY(-4px);
    border-color: var(--card-hover-border);
    box-shadow: var(--shadow-card), var(--shadow-glow);
}

/* Card Screenshot Media */
.proof-media-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background: #06090e;
    overflow: hidden;
    cursor: pointer;
}

.proof-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s ease;
}

.proof-card:hover .proof-img {
    transform: scale(1.03);
}

.media-zoom-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    opacity: 0;
    transition: opacity 0.2s ease;
    color: #ffffff;
    font-weight: 700;
    font-size: 0.88rem;
}

.proof-media-wrap:hover .media-zoom-overlay {
    opacity: 1;
}

.gain-badge-overlay {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(7, 34, 24, 0.9);
    border: 1px solid var(--accent-emerald);
    color: var(--accent-emerald);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.15rem;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(0, 242, 152, 0.3);
}

/* Card Content */
.proof-content {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.proof-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.asset-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.asset-symbol {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
}

.direction-tag {
    font-size: 0.75rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

.direction-long {
    background: rgba(0, 242, 152, 0.15);
    color: var(--accent-emerald);
    border: 1px solid rgba(0, 242, 152, 0.4);
}

.direction-short {
    background: rgba(255, 59, 105, 0.15);
    color: var(--accent-rose);
    border: 1px solid rgba(255, 59, 105, 0.4);
}

.signal-id-tag {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* Metrics Mini-Grid */
.proof-metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin-bottom: 16px;
    text-align: center;
}

.p-metric-item .p-label {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 600;
}

.p-metric-item .p-val {
    font-family: var(--font-mono);
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Caption Quote */
.proof-caption-box {
    background: rgba(0, 0, 0, 0.25);
    border-left: 3px solid var(--accent-cyan);
    padding: 10px 12px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: 18px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    white-space: pre-line;
    max-height: 80px;
    overflow-y: auto;
}

[data-theme="light"] .proof-caption-box {
    background: #f1f5f9;
}

/* Card Verification Footer */
.proof-footer {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.time-stamp-info {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.time-stamp-info span {
    display: block;
    color: var(--text-secondary);
    font-weight: 600;
}

.btn-verify-tg {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(0, 180, 255, 0.12);
    border: 1px solid rgba(0, 180, 255, 0.4);
    color: #38bdf8;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.82rem;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-verify-tg:hover {
    background: rgba(0, 180, 255, 0.22);
    border-color: #38bdf8;
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

/* Empty State */
.empty-gallery {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

/* Lightbox Modal */
.lightbox-modal {
    position: fixed;
    inset: 0;
    background: rgba(4, 7, 13, 0.92);
    backdrop-filter: blur(14px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.lightbox-modal.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    max-width: 1000px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
}

.lightbox-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all 0.2s ease;
}

.lightbox-close-btn:hover {
    background: var(--accent-rose);
    border-color: var(--accent-rose);
}

.lightbox-img-wrap {
    width: 100%;
    max-height: 65vh;
    background: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.lightbox-img-wrap img {
    max-width: 100%;
    max-height: 65vh;
    object-fit: contain;
}

.lightbox-details {
    padding: 20px 24px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-top: 1px solid var(--card-border);
}

.lightbox-meta h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.lightbox-meta p {
    font-size: 0.86rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
    .metrics-row {
        grid-template-columns: repeat(2, 1fr);
    }
    .gallery-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 64px;
    }
    .metrics-row {
        grid-template-columns: 1fr;
    }
    .proofs-grid {
        grid-template-columns: 1fr;
    }
    .toolbar-wrap {
        flex-direction: column;
        align-items: stretch;
    }
    .search-sort-group {
        max-width: 100%;
    }
    .search-input-wrap {
        max-width: 100%;
    }
    .verification-banner {
        flex-direction: column;
        text-align: center;
    }
    .lightbox-details {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
}