/* ==========================================================================
   MotorHDPics Design System
   Principles: taste-skill (typographic mastery, depth, rhythm) & anti-slop (honest, accessible, zero bloat)
   ========================================================================== */

:root {
    /* Color Palette - Apple Dark (Default) */
    --bg-base: #000000;
    --bg-canvas: #09090c;
    --bg-surface: #121217;
    --bg-card: rgba(20, 20, 26, 0.75);
    --bg-card-hover: rgba(28, 28, 36, 0.95);
    --bg-elevated: #1a1a23;
    --bg-glass: rgba(12, 12, 16, 0.8);
    
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1aa;
    --text-tertiary: #71717a;
    --text-muted: #52525b;

    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.15);
    --border-highlight: rgba(255, 255, 255, 0.28);

    --accent: #0071e3;
    --accent-hover: #0077ed;
    --accent-glow: rgba(0, 113, 227, 0.22);
    --accent-badge: rgba(0, 113, 227, 0.12);
    --accent-badge-text: #60a5fa;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.75);

    /* Radius & Layout */
    --radius-xs: 6px;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;
    --container-max: 1240px;
    --container-reading: 760px;

    /* Easing & Physics */
    --ease-apple: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.18s var(--ease-apple);
    --transition-normal: 0.3s var(--ease-apple);
    --transition-slow: 0.5s var(--ease-apple);

    /* Typography */
    --font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Segoe UI", Roboto, sans-serif;
}

[data-theme="light"] {
    --bg-base: #ffffff;
    --bg-canvas: #f8f8fa;
    --bg-surface: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.88);
    --bg-card-hover: #ffffff;
    --bg-elevated: #f0f0f4;
    --bg-glass: rgba(255, 255, 255, 0.85);

    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-tertiary: #71717a;
    --text-muted: #a1a1aa;

    --border-subtle: rgba(0, 0, 0, 0.08);
    --border-medium: rgba(0, 0, 0, 0.14);
    --border-highlight: rgba(0, 0, 0, 0.25);

    --accent: #0071e3;
    --accent-hover: #0077ed;
    --accent-glow: rgba(0, 113, 227, 0.14);
    --accent-badge: rgba(0, 113, 227, 0.08);
    --accent-badge-text: #0062c4;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-stack);
    background-color: var(--bg-canvas);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Focus Visible for Full Keyboard Accessibility (Anti-Slop Hard Gate) */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: var(--radius-xs);
}

/* Skip Navigation Link */
.skip-link {
    position: absolute;
    top: -60px;
    left: 20px;
    background: var(--accent);
    color: #ffffff;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.85rem;
    z-index: 1000;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 16px;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* Reading Progress Bar (Article Detail) */
.reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), #38bdf8);
    z-index: 1001;
    transition: width 0.1s linear;
}

/* ==========================================================================
   Site Header (Frosted Glass Apple-Style)
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-subtle);
    transition: background var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.12rem;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    min-width: 0;
}

.brand-logo .logo-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #0071e3, #2563eb);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 2px 10px var(--accent-glow);
}

.brand-logo .badge-niche {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: var(--accent-badge);
    color: var(--accent-badge-text);
    border: 1px solid rgba(0, 113, 227, 0.25);
    margin-left: 2px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-link {
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--border-subtle);
}

.nav-link.active {
    color: var(--text-primary);
    background: var(--border-medium);
    font-weight: 600;
}

.btn-icon {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    color: var(--text-primary);
    border-color: var(--border-medium);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Hero Section (Taste-Skill Editorial Typography & Anti-Slop Clarity)
   ========================================================================== */

.hero-section {
    padding: 64px 24px 36px;
    max-width: var(--container-max);
    margin: 0 auto;
    text-align: center;
}

.hero-container {
    max-width: 820px;
    margin: 0 auto;
}

.hero-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero-pill .dot-live {
    width: 7px;
    height: 7px;
    background: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px #10b981;
}

.hero-title {
    font-size: clamp(2.4rem, 5.5vw, 3.8rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.08;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.hero-description {
    font-size: clamp(1.02rem, 2vw, 1.18rem);
    color: var(--text-secondary);
    max-width: 660px;
    margin: 0 auto 36px;
    line-height: 1.6;
    font-weight: 400;
}

/* Live Search Bar with Instant Focus Shortcut */
.search-box-wrapper {
    max-width: 560px;
    margin: 0 auto 28px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    width: 100%;
    padding: 15px 90px 15px 48px;
    border-radius: var(--radius-full);
    background: var(--bg-surface);
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    box-shadow: var(--shadow-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.search-input:focus {
    border-color: var(--accent);
    background: var(--bg-elevated);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.search-icon {
    position: absolute;
    left: 18px;
    color: var(--text-tertiary);
    pointer-events: none;
}

.search-shortcut-badge {
    position: absolute;
    right: 14px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: var(--radius-xs);
    background: var(--border-subtle);
    border: 1px solid var(--border-medium);
    color: var(--text-tertiary);
    font-size: 0.72rem;
    font-weight: 600;
    pointer-events: none;
}

.search-clear-btn {
    position: absolute;
    right: 52px;
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px;
    display: none;
    align-items: center;
    justify-content: center;
}

.search-clear-btn:hover {
    color: var(--text-primary);
}

/* Topics / Graphify Ribbon */
.topics-ribbon {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.topic-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-tertiary);
    margin-right: 4px;
}

.topic-chip {
    font-size: 0.82rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.topic-chip:hover {
    color: var(--text-primary);
    border-color: var(--border-medium);
    transform: translateY(-1px);
}

.topic-chip.active {
    background: var(--text-primary);
    color: var(--bg-base);
    border-color: var(--text-primary);
    font-weight: 600;
}

/* ==========================================================================
   Main Content & Bento Card Grid
   ========================================================================== */

.main-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px 80px;
    width: 100%;
}

.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 28px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.section-title {
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

.section-count {
    font-size: 0.84rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 28px;
}

.article-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.article-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
}

.card-media-wrapper {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--bg-elevated);
}

.card-media-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.article-card:hover .card-media-img {
    transform: scale(1.04);
}

.card-media-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--text-secondary);
    background: radial-gradient(circle at 50% 25%, rgba(255,255,255,0.06), transparent 45%), linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
}

.card-media-placeholder span {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1;
    color: var(--text-primary);
    opacity: 0.8;
}

.card-media-placeholder strong {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.card-media-placeholder small {
    color: var(--text-tertiary);
    font-size: 0.75rem;
}

.card-badge-count {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.16);
    display: flex;
    align-items: center;
    gap: 5px;
}

.card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-tags {
    display: flex;
    gap: 6px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.card-tag {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent-badge-text);
    background: var(--accent-badge);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(0, 113, 227, 0.15);
}

.card-title {
    font-size: 1.18rem;
    font-weight: 650;
    line-height: 1.35;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.card-title a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.card-title a:hover {
    color: var(--accent);
}

.card-description {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.card-cta {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--accent);
    font-weight: 600;
    transition: gap var(--transition-fast);
}

.card-cta:hover {
    gap: 8px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 64px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    max-width: 600px;
    margin: 40px auto;
}

.empty-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--accent-badge);
    color: var(--accent-badge-text);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.empty-title {
    font-size: 1.2rem;
    font-weight: 650;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ==========================================================================
   Article Detail View (Editorial Typography & Gallery Mosaic)
   ========================================================================== */

.article-detail-page {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 32px 24px 80px;
}

.article-header {
    max-width: var(--container-reading);
    margin: 0 auto 36px;
    text-align: center;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.82rem;
    color: var(--text-tertiary);
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.breadcrumbs a {
    color: var(--text-secondary);
}

.breadcrumbs a:hover {
    color: var(--accent);
}

.article-headline {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 750;
    letter-spacing: -0.035em;
    line-height: 1.12;
    color: var(--text-primary);
    margin-bottom: 18px;
}

.article-meta-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.84rem;
    color: var(--text-tertiary);
    flex-wrap: wrap;
}

.article-hero-media {
    max-width: var(--container-max);
    margin: 0 auto 48px;
}

.hero-image-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-lg);
    cursor: zoom-in;
    aspect-ratio: 16 / 9;
}

.hero-image-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.hero-image-card:hover img {
    transform: scale(1.02);
}

.image-overlay-pill {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #ffffff;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.82rem;
    font-weight: 600;
    pointer-events: none;
}

.article-content-container {
    max-width: var(--container-reading);
    margin: 0 auto;
}

.article-intro {
    font-size: 1.18rem;
    line-height: 1.75;
    color: var(--text-primary);
    font-weight: 450;
    margin-bottom: 40px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border-subtle);
}

.article-section {
    margin-bottom: 48px;
}

.section-h2 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    margin-bottom: 18px;
    line-height: 1.25;
}

.section-body p {
    font-size: 1.02rem;
    line-height: 1.78;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.section-body p:last-child {
    margin-bottom: 0;
}

.inline-gallery-card {
    margin: 32px 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
}

.inline-gallery-card .img-container {
    cursor: zoom-in;
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.inline-gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.gallery-caption {
    padding: 14px 18px;
    font-size: 0.84rem;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.source-tag {
    font-size: 0.74rem;
    font-weight: 600;
    color: var(--accent);
}

/* FAQ Accordion */
.faq-accordion {
    margin-top: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.faq-section-title {
    font-size: 1.2rem;
    font-weight: 650;
    color: var(--text-primary);
    margin-bottom: 18px;
}

.faq-item {
    border-bottom: 1px solid var(--border-subtle);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 16px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--text-primary);
    font-size: 0.96rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--accent);
}

.faq-chevron {
    transition: transform var(--transition-fast);
}

.faq-item.open .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 400px;
    padding-bottom: 16px;
}

.faq-answer p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* Full Gallery Mosaic */
.full-gallery-section {
    margin-top: 64px;
    padding-top: 36px;
    border-top: 1px solid var(--border-subtle);
}

.section-subtext {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    margin-bottom: 24px;
}

.gallery-mosaic {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.mosaic-item {
    position: relative;
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    cursor: zoom-in;
}

.mosaic-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.mosaic-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    color: #ffffff;
    transition: opacity var(--transition-fast);
}

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

.mosaic-item:hover .mosaic-overlay {
    opacity: 1;
}

.article-tags-footer {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.tags-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-tertiary);
}

.tag-pill {
    font-size: 0.82rem;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.tag-pill:hover {
    color: var(--text-primary);
    border-color: var(--border-medium);
}

/* ==========================================================================
   Static Pages Layout & Legal Prose
   ========================================================================== */

.static-page-container {
    max-width: var(--container-reading);
    margin: 0 auto;
    padding: 48px 24px 80px;
}

.static-page-header {
    text-align: center;
    margin-bottom: 44px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    padding: 4px 14px;
    background: var(--accent-badge);
    color: var(--accent-badge-text);
    border-radius: var(--radius-full);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
    border: 1px solid rgba(0, 113, 227, 0.25);
}

.static-page-title {
    font-size: clamp(2.2rem, 4.5vw, 3rem);
    font-weight: 750;
    letter-spacing: -0.035em;
    color: var(--text-primary);
    line-height: 1.14;
    margin-bottom: 16px;
}

.static-page-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 620px;
    line-height: 1.55;
}

.static-page-content {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.content-block {
    margin-bottom: 36px;
}

.content-block:last-child {
    margin-bottom: 0;
}

.content-block h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
    letter-spacing: -0.015em;
}

.content-block p {
    font-size: 0.98rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 14px;
}

.content-block p:last-child {
    margin-bottom: 0;
}

.bullet-list {
    list-style: none;
    padding-left: 0;
    margin: 16px 0;
}

.bullet-list li {
    position: relative;
    padding-left: 24px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 12px;
}

.bullet-list li::before {
    content: "•";
    position: absolute;
    left: 8px;
    color: var(--accent);
    font-size: 1.2rem;
    line-height: 1;
}

.text-link {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-fast);
}

.text-link:hover {
    color: var(--accent-hover);
}

/* Feature Grid in About Page */
.feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 20px;
}

@media (min-width: 640px) {
    .feature-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

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

.feature-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--accent-badge);
    color: var(--accent-badge-text);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1rem;
    font-weight: 650;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 0;
}

/* Contact Grid & Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 840px) {
    .contact-grid {
        grid-template-columns: 1fr 1.3fr;
    }
}

.contact-info-panel,
.contact-form-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.panel-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.panel-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 24px;
}

.channel-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 14px;
    transition: all var(--transition-fast);
}

.channel-card:hover {
    border-color: var(--border-medium);
}

.channel-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--accent-badge);
    color: var(--accent-badge-text);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.channel-name {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.channel-link {
    font-size: 0.88rem;
    color: var(--accent);
    word-break: break-all;
}

.channel-notice {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    padding: 14px;
    font-size: 0.82rem;
    color: var(--text-tertiary);
    line-height: 1.5;
    margin-top: 20px;
}

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

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group .req {
    color: #ef4444;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.92rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #ffffff;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px var(--accent-glow);
}

.form-success-banner {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.25);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-top: 20px;
    color: var(--text-primary);
}

.form-success-banner strong {
    display: block;
    font-size: 0.92rem;
    color: #22c55e;
    margin-bottom: 4px;
}

.form-success-banner p {
    font-size: 0.84rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ==========================================================================
   High-Resolution Lightbox Modal (Focus Trap & Keyboard Driven)
   ========================================================================== */

.lightbox-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.94);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.lightbox-header {
    position: absolute;
    top: 20px;
    left: 24px;
    right: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 10;
}

.lightbox-counter {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.lightbox-actions {
    display: flex;
    gap: 10px;
}

.lightbox-btn {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #ffffff;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
}

.lightbox-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

.lightbox-content {
    max-width: 90vw;
    max-height: 78vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.lightbox-image {
    max-width: 100%;
    max-height: 78vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.9);
    transition: opacity 0.2s ease;
}

.lightbox-caption {
    position: absolute;
    bottom: 24px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9rem;
    max-width: 640px;
    text-align: center;
    padding: 0 20px;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #ffffff;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.28);
    transform: translateY(-50%) scale(1.08);
}

.lightbox-nav.prev { left: 24px; }
.lightbox-nav.next { right: 24px; }

/* Floating Toast Notification */
.toast-notice {
    position: fixed;
    bottom: 28px;
    right: 28px;
    background: var(--bg-surface);
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 3000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s var(--ease-apple);
}

.toast-notice.show {
    transform: translateY(0);
    opacity: 1;
}

/* ==========================================================================
   Multi-Column Site Footer (Apple Minimalist Pro)
   ========================================================================== */

.site-footer {
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    padding: 48px 24px 28px;
    margin-top: auto;
}

.footer-container-grid {
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 600px) {
    .footer-container-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 960px) {
    .footer-container-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
    }
}

.footer-brand-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
}

.footer-logo .logo-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: linear-gradient(135deg, #0071e3, #2563eb);
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 320px;
}

.footer-col-title {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-col-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col-links a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast), transform var(--transition-fast);
    display: inline-block;
}

.footer-col-links a:hover {
    color: var(--accent);
    transform: translateX(2px);
}

.footer-bottom-bar {
    max-width: var(--container-max);
    margin: 40px auto 0;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.78rem;
    color: var(--text-tertiary);
    line-height: 1.5;
}

@media (min-width: 640px) {
    .footer-bottom-bar {
        flex-direction: row;
    }
}

/* ==========================================================================
   Responsive Breakpoints & Touch Optimization
   ========================================================================== */

@media (max-width: 768px) {
    .site-header {
        position: relative;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .hero-section {
        padding: 44px 16px 20px;
    }

    .header-container {
        min-height: 58px;
        padding: 10px 16px;
        gap: 12px;
    }

    .brand-logo {
        gap: 8px;
        font-size: 1rem;
    }

    .brand-logo .badge-niche,
    .nav-actions .nav-link:not(:first-child) {
        display: none;
    }

    .nav-actions {
        gap: 6px;
    }

    .nav-link {
        padding: 6px 10px;
    }

    .site-footer {
        padding: 36px 18px 24px;
    }

    .footer-container-grid {
        gap: 28px;
    }

    .footer-bottom-bar {
        margin-top: 32px;
        align-items: flex-start;
    }

    .lightbox-nav {
        display: none;
    }

    .static-page-content {
        padding: 24px 18px;
    }

    .contact-info-panel,
    .contact-form-panel {
        padding: 24px 18px;
    }
}