/* ==========================================================================
   CASE STUDY MODERN STYLESHEET — MANAV TYAGI PORTFOLIO
   High-Performance Editorial Scrollytelling Architecture with Liquid Aesthetics
   ========================================================================== */

/* ------------------------------------------------------------------
   DESIGN TOKENS — mapped from the global root defined in
   common.css / root.css  (single source-of-truth for the portfolio)
   ------------------------------------------------------------------ */
:root {
    /* Layout */
    --cs-max-width: 1200px;
    --cs-content-width: 860px;

    /* Colours — inherit global palette */
    --cs-bg:            var(--primary-bg);           /* #050505       */
    --cs-card-bg:       var(--card-bg);              /* rgba(25,25,25,0.4) */
    --cs-card-border:   var(--liquid-border);        /* rgba(255,255,255,0.1) */
    --cs-card-highlight:var(--liquid-highlight);     /* inset 0 1px 1px … */
    --cs-text-primary:  var(--text-primary);         /* #ffffff       */
    --cs-text-secondary:var(--text-secondary);       /* #a0a0a0       */
    --cs-text-muted:    #707070;                     /* no global token → keep local */
    --cs-accent:        var(--accent-color);         /* #ff5757       */
    --cs-accent-glow:   var(--accent-glow);          /* rgba(255,87,87,0.4) */

    /* Radii — inherit global radius tokens */
    --cs-radius-lg: var(--border-radius-lg);         /* 24px */
    --cs-radius-md: var(--border-radius-md);         /* 16px */
    --cs-radius-sm: 10px;                            /* no global token → keep local */

    /* Typography — match portfolio font stack */
    --cs-font-heading: 'Poppins', 'Outfit', sans-serif;
    --cs-font-body:    'Inter', system-ui, sans-serif;
    --cs-font-mono:    'Space Grotesk', monospace;

    /* Easing — inherit global transition curves */
    --cs-ease: cubic-bezier(0.16, 1, 0.3, 1);       /* matches --transition-fast/smooth */
}

/* --------------------------------------------------------------------------
   1. Base & Viewport Wrapper
   -------------------------------------------------------------------------- */
.cs-viewport {
    position: relative;
    width: 100%;
    min-height: 100vh;
    background-color: var(--cs-bg);
    color: var(--cs-text-primary);
    font-family: var(--cs-font-body);
    padding-top: 110px;
    padding-bottom: 80px;
    overflow-x: clip;
    isolation: isolate;
}

/* Ambient Background Atmosphere */
.cs-ambient-glow {
    position: fixed;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
    width: 900px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 87, 87, 0.08) 0%, rgba(76, 64, 217, 0.05) 45%, transparent 70%);
    filter: blur(120px);
    pointer-events: none;
    z-index: -1;
}

.cs-grid-pattern {
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 35%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 35%, transparent 75%);
    pointer-events: none;
    z-index: -1;
}

/* --------------------------------------------------------------------------
   2. Layout Structure: Main Content + Sticky TOC Rail
   -------------------------------------------------------------------------- */
.cs-layout-container {
    width: 92%;
    max-width: var(--cs-max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 50px;
    align-items: start;
    position: relative;
}

.cs-main-content {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 80px;
}

/* --------------------------------------------------------------------------
   3. Sticky Table of Contents (Desktop Sidebar Rail)
   -------------------------------------------------------------------------- */
.cs-toc-sidebar {
    position: sticky;
    top: 120px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 24px;
    background: var(--cs-card-bg);
    border: var(--cs-card-border);
    box-shadow: var(--cs-card-highlight), 0 20px 40px rgba(0, 0, 0, 0.4);
    border-radius: var(--cs-radius-lg);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    z-index: 20;
}

.cs-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cs-toc-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--cs-accent);
}

.cs-toc-pulse {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cs-accent);
    box-shadow: 0 0 10px var(--cs-accent);
    animation: csPulse 2s infinite ease-in-out;
}

@keyframes csPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(1.3); }
}

.cs-toc-progress-text {
    font-family: var(--cs-font-mono);
    font-size: 0.75rem;
    color: var(--cs-text-muted);
}

.cs-toc-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cs-toc-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--cs-radius-sm);
    color: var(--cs-text-secondary);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    transition: all 0.25s var(--cs-ease);
}

.cs-toc-link .toc-num {
    font-family: var(--cs-font-mono);
    font-size: 0.75rem;
    color: var(--cs-text-muted);
    transition: color 0.25s ease;
}

.cs-toc-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
}

.cs-toc-link.active {
    color: #fff;
    background: rgba(255, 87, 87, 0.12);
    border: 1px solid rgba(255, 87, 87, 0.3);
    box-shadow: 0 0 15px rgba(255, 87, 87, 0.2);
}

.cs-toc-link.active .toc-num {
    color: var(--cs-accent);
    font-weight: 700;
}

.cs-toc-actions {
    margin-top: 8px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cs-toc-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--cs-radius-sm);
    color: #fff;
    text-decoration: none;
    font-size: 0.78rem;
    font-weight: 600;
    transition: all 0.25s ease;
}

.cs-toc-btn:hover {
    background: var(--cs-accent);
    border-color: var(--cs-accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--cs-accent-glow);
}

/* Mobile Top Floating Progress Bar */
.cs-mobile-hud {
    display: none;
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    z-index: 990;
    background: rgba(10, 10, 14, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 8px 16px;
}

.cs-mobile-hud-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 600px;
    margin: 0 auto;
}

.cs-mobile-active-chip {
    font-size: 0.78rem;
    font-weight: 600;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 6px;
}

.cs-mobile-progress-track {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 100%;
    background: rgba(255, 255, 255, 0.08);
}

.cs-mobile-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--cs-accent);
    box-shadow: 0 0 10px var(--cs-accent);
    transition: width 0.1s linear;
}

/* --------------------------------------------------------------------------
   4. Section: Hero & Executive Overview
   -------------------------------------------------------------------------- */
.cs-hero-card {
    background: var(--cs-card-bg);
    border: var(--cs-card-border);
    box-shadow: var(--cs-card-highlight), 0 30px 60px rgba(0, 0, 0, 0.5);
    border-radius: var(--cs-radius-lg);
    padding: 48px;
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    position: relative;
    overflow: hidden;
}

.cs-hero-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255, 87, 87, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cs-badge-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.cs-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255, 87, 87, 0.12);
    border: 1px solid rgba(255, 87, 87, 0.3);
    border-radius: 30px;
    color: var(--cs-accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.cs-year {
    font-family: var(--cs-font-mono);
    font-size: 0.8rem;
    color: var(--cs-text-muted);
}

.cs-hero-title {
    font-family: var(--cs-font-heading);
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.cs-hero-title .text-gradient {
    background: linear-gradient(135deg, #ffffff 40%, var(--cs-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cs-hero-desc {
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    line-height: 1.7;
    color: var(--cs-text-secondary);
    max-width: 760px;
    margin-bottom: 36px;
}

/* Metadata Strip */
.cs-meta-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 36px;
}

.cs-meta-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--cs-radius-md);
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.cs-meta-item:hover {
    border-color: rgba(255, 87, 87, 0.3);
    transform: translateY(-2px);
}

.cs-meta-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--cs-text-muted);
}

.cs-meta-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
}

.cs-hero-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

/* Hero Showcase Image Frame */
.cs-hero-media {
    position: relative;
    border-radius: var(--cs-radius-md);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
}

.cs-hero-media img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s var(--cs-ease);
}

.cs-hero-media:hover img {
    transform: scale(1.02);
}

.cs-media-pill {
    position: absolute;
    bottom: 16px;
    left: 16px;
    padding: 6px 16px;
    background: rgba(14, 14, 20, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 30px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* --------------------------------------------------------------------------
   5. General Section Typography & Headers
   -------------------------------------------------------------------------- */
.cs-section {
    scroll-margin-top: 110px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.cs-section-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cs-section-eyebrow {
    font-family: var(--cs-font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--cs-accent);
}

.cs-section-title {
    font-family: var(--cs-font-heading);
    font-size: clamp(1.8rem, 3.2vw, 2.6rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: #fff;
}

.cs-section-subtitle {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--cs-text-secondary);
    max-width: 780px;
}

/* --------------------------------------------------------------------------
   6. Problem vs Solution Bento System
   -------------------------------------------------------------------------- */
.cs-bento-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.cs-bento-card {
    background: var(--cs-card-bg);
    border: var(--cs-card-border);
    border-radius: var(--cs-radius-lg);
    padding: 32px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    overflow: hidden;
}

.cs-bento-card.danger {
    border-left: 3px solid #ff5757;
}

.cs-bento-card.success {
    border-left: 3px solid #10b981;
}

.cs-bento-header {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
}

.cs-bento-card.danger .cs-bento-header i {
    color: #ff5757;
}

.cs-bento-card.success .cs-bento-header i {
    color: #10b981;
}

.cs-bento-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.cs-bento-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--cs-radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cs-bento-item h4 {
    font-size: 0.92rem;
    font-weight: 700;
    color: #fff;
    margin: 0;
}

.cs-bento-item p {
    font-size: 0.82rem;
    color: var(--cs-text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* --------------------------------------------------------------------------
   7. Interactive Before / After Split Slider
   -------------------------------------------------------------------------- */
.cs-slider-wrapper {
    background: var(--cs-card-bg);
    border: var(--cs-card-border);
    border-radius: var(--cs-radius-lg);
    padding: 24px;
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
}

.cs-slider-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.cs-slider-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cs-slider-hint {
    font-size: 0.78rem;
    color: var(--cs-text-muted);
}

.before-after-box {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--cs-radius-md);
    overflow: hidden;
    background: #080810;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    user-select: none;
}

.before-after-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.before-after-overlay {
    position: absolute;
    inset: 0;
    width: 50%;
    height: 100%;
    overflow: hidden;
    border-right: 2px solid var(--cs-accent);
    box-shadow: 3px 0 20px rgba(255, 87, 87, 0.5);
    z-index: 2;
    transition: width 0.05s linear;
}

.before-after-overlay .before-after-img {
    width: 200%;
    max-width: none;
}

.before-after-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--cs-accent);
    border: 2px solid #ffffff;
    box-shadow: 0 0 20px rgba(255, 87, 87, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 0.85rem;
    z-index: 5;
    pointer-events: none;
    transition: left 0.05s linear;
}

.before-after-range {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: ew-resize;
    z-index: 10;
    margin: 0;
}

.before-after-badge {
    position: absolute;
    bottom: 16px;
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    z-index: 4;
    pointer-events: none;
    backdrop-filter: blur(10px);
}

.badge-before {
    left: 16px;
    background: rgba(220, 53, 69, 0.5);
    border: 1px solid rgba(220, 53, 69, 0.7);
    color: #ffc4c4;
}

.badge-after {
    right: 16px;
    background: rgba(16, 185, 129, 0.5);
    border: 1px solid rgba(16, 185, 129, 0.7);
    color: #d1fae5;
}

/* --------------------------------------------------------------------------
   8. Design System: Swatches & Typography
   -------------------------------------------------------------------------- */
.cs-ds-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.cs-ds-card {
    background: var(--cs-card-bg);
    border: var(--cs-card-border);
    border-radius: var(--cs-radius-lg);
    padding: 32px;
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.cs-swatches-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.swatch-card.interactive {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--cs-radius-md);
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.25s var(--cs-ease);
}

.swatch-card.interactive:hover {
    transform: translateY(-3px) scale(1.02);
    border-color: rgba(255, 87, 87, 0.4);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 15px rgba(255, 87, 87, 0.2);
}

.swatch-color-preview {
    width: 42px;
    height: 42px;
    border-radius: var(--cs-radius-sm);
    flex-shrink: 0;
}

.swatch-name {
    font-size: 0.85rem;
    font-weight: 700;
    color: #fff;
    display: block;
}

.swatch-hex {
    font-family: var(--cs-font-mono);
    font-size: 0.72rem;
    color: var(--cs-text-secondary);
    display: block;
}

.swatch-token-tag {
    font-family: var(--cs-font-mono);
    font-size: 0.65rem;
    color: var(--cs-text-muted);
    display: block;
}

/* Typography Ladder */
.type-weight-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.type-weight-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #aaa;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.type-weight-btn.active, .type-weight-btn:hover {
    background: rgba(255, 87, 87, 0.2);
    border-color: rgba(255, 87, 87, 0.4);
    color: #fff;
}

.specimen-ladder {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--cs-radius-md);
}

.specimen-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.specimen-tag {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--cs-text-muted);
}

.sample-display {
    font-family: var(--cs-font-heading);
    font-size: 1.4rem;
    color: #fff;
    transition: font-weight 0.2s ease;
}

.sample-heading {
    font-family: var(--cs-font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
}

.sample-body {
    font-size: 0.85rem;
    color: var(--cs-text-secondary);
    line-height: 1.6;
}

/* --------------------------------------------------------------------------
   9. High-Fidelity Showcase Gallery & Lightbox
   -------------------------------------------------------------------------- */
.cs-gallery-filter {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.gallery-subfilter {
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 30px;
    color: var(--cs-text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
}

.gallery-subfilter:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.gallery-subfilter.active {
    color: #fff;
    background: rgba(255, 87, 87, 0.2);
    border-color: rgba(255, 87, 87, 0.4);
    box-shadow: 0 0 15px rgba(255, 87, 87, 0.25);
}

.cs-gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.cs-gallery-card {
    position: relative;
    border-radius: var(--cs-radius-md);
    overflow: hidden;
    background: #080810;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    cursor: zoom-in;
    transition: transform 0.35s var(--cs-ease), box-shadow 0.35s var(--cs-ease);
}

.cs-gallery-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 87, 87, 0.15);
}

.cs-gallery-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    display: block;
    transition: transform 0.5s var(--cs-ease);
}

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

.cs-gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.85) 100%);
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 16px 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cs-gallery-card:hover .cs-gallery-overlay {
    opacity: 1;
}

.gallery-screen-cat {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--cs-accent);
    display: block;
}

.gallery-screen-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: #fff;
    display: block;
}

.gallery-zoom-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 87, 87, 0.8);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

/* Lightbox Modal */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 92vw;
    max-height: 88vh;
    border-radius: 12px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

/* --------------------------------------------------------------------------
   10. Quantified Impact & Client Testimonial
   -------------------------------------------------------------------------- */
.cs-impact-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
}

.cs-metrics-kpi {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.cs-kpi-card {
    background: var(--cs-card-bg);
    border: var(--cs-card-border);
    border-radius: var(--cs-radius-md);
    padding: 24px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.cs-kpi-card:hover {
    border-color: rgba(255, 87, 87, 0.4);
    transform: translateY(-3px);
}

.cs-kpi-value {
    font-family: var(--cs-font-mono);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--cs-accent);
    line-height: 1;
}

.cs-kpi-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: #fff;
}

.cs-kpi-desc {
    font-size: 0.78rem;
    color: var(--cs-text-secondary);
    line-height: 1.5;
}

/* Testimonial Card */
.cs-testimonial-card {
    background: var(--cs-card-bg);
    border: var(--cs-card-border);
    border-radius: var(--cs-radius-lg);
    padding: 32px;
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 20px;
    position: relative;
    overflow: hidden;
}

.cs-testimonial-card::before {
    content: '\201C';
    position: absolute;
    top: 0;
    left: 20px;
    font-size: 6rem;
    color: rgba(255, 87, 87, 0.1);
    font-family: Georgia, serif;
    line-height: 1;
    pointer-events: none;
}

.cs-stars {
    color: #ffd700;
    font-size: 0.95rem;
    letter-spacing: 2px;
}

.cs-quote {
    font-size: 0.98rem;
    font-style: italic;
    color: #e0e0e0;
    line-height: 1.7;
    margin: 0;
    position: relative;
    z-index: 1;
}

.cs-client-profile {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.cs-client-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--cs-accent);
}

.cs-client-info h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin: 0 0 2px;
}

.cs-client-info p {
    font-size: 0.75rem;
    color: var(--cs-text-muted);
    margin: 0;
}

/* --------------------------------------------------------------------------
   11. Next Project Spotlight Card & Footer CTA
   -------------------------------------------------------------------------- */
.cs-next-project-card {
    background: linear-gradient(135deg, rgba(25, 25, 35, 0.9) 0%, rgba(12, 12, 16, 0.9) 100%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--cs-radius-lg);
    padding: 36px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    text-decoration: none;
    transition: all 0.35s var(--cs-ease);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.cs-next-project-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 50%, rgba(255, 87, 87, 0.15) 0%, transparent 60%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cs-next-project-card:hover {
    border-color: rgba(255, 87, 87, 0.5);
    transform: translateY(-4px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 30px rgba(255, 87, 87, 0.2);
}

.cs-next-project-card:hover::after {
    opacity: 1;
}

.cs-next-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 1;
}

.cs-next-tag {
    font-family: var(--cs-font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--cs-accent);
}

.cs-next-title {
    font-family: var(--cs-font-heading);
    font-size: clamp(1.4rem, 2.5vw, 1.8rem);
    font-weight: 800;
    color: #fff;
    margin: 0;
}

.cs-next-desc {
    font-size: 0.88rem;
    color: var(--cs-text-secondary);
    margin: 0;
}

.cs-next-action-pill {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: var(--cs-accent);
    color: #fff;
    border-radius: 30px;
    font-size: 0.88rem;
    font-weight: 700;
    white-space: nowrap;
    z-index: 1;
    box-shadow: 0 8px 20px var(--cs-accent-glow);
    transition: transform 0.25s ease;
}

.cs-next-project-card:hover .cs-next-action-pill {
    transform: scale(1.05);
}

/* --------------------------------------------------------------------------
   12. Floating Toast Notification
   -------------------------------------------------------------------------- */
.swatch-copy-toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: rgba(18, 18, 24, 0.95);
    border: 1px solid var(--cs-accent);
    color: #fff;
    padding: 12px 22px;
    border-radius: 30px;
    font-size: 0.82rem;
    font-weight: 600;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.7), 0 0 25px rgba(255, 87, 87, 0.35);
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 999999;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s var(--cs-ease);
    pointer-events: none;
}

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