/* =========================================
   ESPRIT PI Stats — Design System & Styles
   Colors:  #c90c0f (red accent)
            #1d1d1b (dark bg)
            #bdbcbc (muted text/borders)
   ========================================= */

:root {
    /* Primary Colors */
    --red:        #c90c0f;
    --red-light:  #e8383b;
    --red-glow:   rgba(201, 12, 15, 0.35);
    
    /* Common Fonts/Scales */
    --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
    --font-mono:  'JetBrains Mono', 'Fira Code', monospace;
    --radius:     12px;
    --radius-sm:  8px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
body.theme-light {
    --bg-main:         #f9f9f9;
    --bg-card:         #ffffff;
    --bg-hover:        #f0f0f0;
    --bg-input:        #ffffff;
    --bg-overlay:      rgba(249, 249, 249, 0.95);
    
    --text-main:       #1d1d1b;
    --text-muted:      #666666;
    --text-muted-dim:  #999999;
    
    --border-color:    rgba(29, 29, 27, 0.1);
    --border-strong:   rgba(29, 29, 27, 0.2);
    
    --shadow-main:     0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-hover:    0 12px 40px rgba(0, 0, 0, 0.12);
}

/* Dark Theme Variables (Default) */
body.theme-dark {
    --bg-main:         #1d1d1b;
    --bg-card:         #252523;
    --bg-hover:        #2e2e2b;
    --bg-input:        #1a1a18;
    --bg-overlay:      rgba(29, 29, 27, 0.95);
    
    --text-main:       #f5f5f4;
    --text-muted:      #bdbcbc;
    --text-muted-dim:  #737373;
    
    --border-color:    rgba(189, 188, 188, 0.08);
    --border-strong:   rgba(189, 188, 188, 0.15);
    
    --shadow-main:     0 16px 48px rgba(0, 0, 0, 0.3);
    --shadow-hover:    0 12px 40px rgba(0, 0, 0, 0.35);
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition), color var(--transition);
}

a { color: inherit; text-decoration: none; }

/* ---- ANIMATED BG ---- */
.bg-grid {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(circle at 20% 30%, var(--red-glow) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(201, 12, 15, 0.12) 0%, transparent 45%);
    animation: bgPulse 12s ease-in-out infinite alternate;
}

@keyframes bgPulse {
    0%   { opacity: 0.5; }
    100% { opacity: 1;   }
}

/* ---- HEADER & NAVIGATION ---- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    background: transparent; /* fallback */
    border-bottom: 1px solid var(--border-color);
}

/* We need slightly different header bg based on theme */
body.theme-dark .header { background: rgba(29, 29, 27, 0.75); }
body.theme-light .header { background: rgba(249, 249, 249, 0.75); }

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

.logo-icon {
    color: var(--red);
    display: flex;
}

.logo-accent { color: var(--red); }

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-btn, .nav-link {
    background: transparent;
    border: none;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: var(--font-sans);
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
    cursor: pointer;
}

.nav-btn:hover, .nav-link:hover {
    color: var(--text-main);
    background: var(--border-color);
}

.nav-btn.active {
    background: rgba(201, 12, 15, 0.1);
    color: var(--red);
}

.presentation-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(201, 12, 15, 0.08);
    color: var(--red);
}
.presentation-toggle:hover {
    background: rgba(201, 12, 15, 0.15);
    color: var(--red-light);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: 50%;
}
.theme-toggle:hover {
    background: var(--border-color);
}

body.theme-dark .moon-icon { display: none; }
body.theme-light .sun-icon { display: none; }

.nav-github {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--border-color);
    border: 1px solid var(--border-color);
}

.nav-github:hover {
    background: var(--border-strong);
}

/* ---- MAIN AREA & TABS ---- */
.main-content {
    width: 100%;
}

.tab-pane {
    display: none;
    animation: fadeInTab 0.3s ease;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeInTab {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---- HERO ---- */
.hero {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 80px 24px 60px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
    background: rgba(201, 12, 15, 0.12);
    border: 1px solid rgba(201, 12, 15, 0.3);
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--red-light);
    margin-bottom: 20px;
    animation: badgePulse 3s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { box-shadow: 0 0 8px rgba(201, 12, 15, 0.15); }
    50%      { box-shadow: 0 0 20px rgba(201, 12, 15, 0.35); }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: 16px;
}

.hero-subtitle {
    color: var(--red);
    display: block;
}

.hero-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
    max-width: 440px;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--red);
    color: #fff;
    box-shadow: 0 4px 24px rgba(201, 12, 15, 0.3);
}

.btn-primary:hover {
    background: var(--red-light);
    box-shadow: 0 6px 32px rgba(201, 12, 15, 0.45);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--border-color);
    color: var(--text-main);
    border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
    background: var(--border-strong);
}

/* Hero cards art */
.hero-art {
    position: relative;
    height: 340px;
}

.hero-card {
    position: absolute;
    padding: 20px;
    border-radius: var(--radius);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-main);
    min-width: 220px;
}

.hero-card-1 {
    top: 0; left: 10%;
    animation: cardFloat1 6s ease-in-out infinite;
}

.hero-card-2 {
    top: 80px; right: 5%;
    animation: cardFloat2 7s ease-in-out infinite;
}

.hero-card-3 {
    bottom: 0; left: 25%;
    animation: cardFloat3 8s ease-in-out infinite;
}

@keyframes cardFloat1 {
    0%, 100% { transform: translateY(0) rotate(-2deg); }
    50%      { transform: translateY(-12px) rotate(0deg); }
}

@keyframes cardFloat2 {
    0%, 100% { transform: translateY(0) rotate(1deg); }
    50%      { transform: translateY(-10px) rotate(-1deg); }
}

@keyframes cardFloat3 {
    0%, 100% { transform: translateY(0) rotate(1deg); }
    50%      { transform: translateY(-14px) rotate(-1deg); }
}

.card-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--red);
    margin-bottom: 14px;
    box-shadow: 0 0 8px var(--red-glow);
}

.card-line {
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    margin-bottom: 8px;
}

.w30 { width: 30%; } .w40 { width: 40%; } .w50 { width: 50%; }
.w60 { width: 60%; } .w70 { width: 70%; } .w80 { width: 80%; } .w90 { width: 90%; }

/* ---- STATS BAR ---- */
.stats-bar {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto 40px;
    padding: 32px 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    flex-wrap: wrap;
    box-shadow: var(--shadow-main);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-main);
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted-dim);
    font-weight: 600;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* ---- CONTROLS (Search & Filters) ---- */
.controls {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px 24px;
}

.search-wrapper {
    position: relative;
    margin-bottom: 16px;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted-dim);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 14px 48px;
    background: var(--bg-input);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    color: var(--text-main);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    outline: none;
    transition: var(--transition);
}

.search-input::placeholder { color: var(--text-muted-dim); }

.search-input:focus {
    border-color: var(--red);
    box-shadow: 0 0 0 3px rgba(201, 12, 15, 0.15);
}

.search-kbd {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    padding: 2px 8px;
    background: var(--border-color);
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    font-size: 0.72rem;
    font-family: var(--font-mono);
    color: var(--text-muted-dim);
}

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

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 500;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    background: var(--border-color);
    color: var(--text-main);
}

.filter-btn.active {
    background: rgba(201, 12, 15, 0.1);
    border-color: rgba(201, 12, 15, 0.35);
    color: var(--red-light);
}

.results-count {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--text-muted-dim);
    font-weight: 500;
}

/* ---- REPOS GRID ---- */
.repos-section {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.repos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 16px;
}

/* ---- REPO CARD ---- */
.repo-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-main);
}

.repo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--red), var(--red-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.repo-card:hover {
    border-color: rgba(201, 12, 15, 0.25);
    background: var(--bg-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.repo-card:hover::before {
    transform: scaleX(1);
}

.repo-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.repo-name {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    word-break: break-word;
    line-height: 1.3;
}

.repo-stars {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
    margin-left: 12px;
}

.repo-stars svg { color: #f5c518; }

.repo-owner {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}

.repo-owner-avatar {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--text-muted);
    overflow: hidden;
}

.repo-owner-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.repo-owner-name {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
}

.repo-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
}

.repo-meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.78rem;
    color: var(--text-muted-dim);
}

.repo-meta-item svg { opacity: 0.6; }

.repo-contributors {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.contributor-chip {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    background: var(--border-color);
    border-radius: 999px;
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
    transition: var(--transition);
}

.contributor-chip:hover {
    background: rgba(201, 12, 15, 0.12);
    color: var(--red-light);
}

.contributor-more {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    background: var(--border-color);
    border-radius: 999px;
    font-size: 0.7rem;
    color: var(--text-muted-dim);
    font-weight: 600;
}

.repo-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    padding: 6px 14px;
    background: var(--border-color);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
}

.repo-link:hover {
    background: rgba(201, 12, 15, 0.1);
    border-color: rgba(201, 12, 15, 0.3);
    color: var(--red-light);
}

/* ---- LOADING / EMPTY ---- */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 80px 0;
    color: var(--text-muted-dim);
}

.spinner {
    width: 36px; height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--red);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 80px 0;
    color: var(--text-muted-dim);
}

/* ---- CHARTS AREA ---- */
.charts-section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.chart-row {
    display: flex;
    gap: 24px;
}
.chart-row.dual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-main);
    flex: 1;
}

.chart-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-main);
}

.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

.stats-insights {
    max-width: 1280px;
    margin: 32px auto 80px;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.insight-card {
    background: var(--bg-card);
    border-left: 4px solid var(--red);
    padding: 24px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-main);
}

.insight-card h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted-dim);
    margin-bottom: 8px;
}

.insight-value {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-main);
    word-break: break-word;
}

.insight-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ---- PRESENTATION MODE ---- */
.presentation-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.presentation-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.slide-container {
    width: 100%;
    max-width: 1000px;
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide {
    position: absolute;
    width: 100%;
    text-align: center;
    opacity: 0;
    transform: scale(0.95);
    pointer-events: none;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide.active {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}

.slide h2 {
    font-size: 2rem;
    color: var(--red);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.slide h3 {
    font-size: 2.5rem;
    color: var(--text-muted);
}

.slide-huge {
    font-size: 8rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--red) 0%, var(--red-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-family: var(--font-mono);
}

.slide-large {
    font-size: clamp(3rem, 5vw, 5rem);
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text-main);
    word-break: break-word;
}

.close-presentation {
    position: absolute;
    top: 32px;
    right: 32px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition);
}
.close-presentation:hover {
    color: var(--text-main);
    background: var(--border-color);
}

.presentation-controls {
    position: absolute;
    bottom: 40px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.slide-nav-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    color: var(--text-main);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}
.slide-nav-btn:hover {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
}

.slide-indicators {
    display: flex;
    gap: 8px;
}
.slide-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-strong);
    cursor: pointer;
    transition: var(--transition);
}
.slide-dot.active {
    background: var(--red);
    transform: scale(1.3);
}

/* ---- FOOTER ---- */
.footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border-color);
    padding: 32px 24px;
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-text {
    font-size: 0.82rem;
    color: var(--text-muted-dim);
}

.footer-text a {
    color: var(--red-light);
    font-weight: 600;
    transition: var(--transition);
}

.footer-text a:hover { color: var(--red); }

.footer-update {
    font-size: 0.78rem;
    color: var(--text-muted-dim);
    font-family: var(--font-mono);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        padding: 48px 24px 40px;
    }
    .hero-art { display: none; }
    .stats-bar {
        margin: 0 16px 32px;
        gap: 24px;
        padding: 24px;
    }
    .stat-divider { display: none; }
    .repos-grid {
        grid-template-columns: 1fr;
    }
    .chart-row.dual {
        grid-template-columns: 1fr;
    }
    .slide-huge { font-size: 5rem; }
}

@media (max-width: 600px) {
    .header-inner { padding: 0 16px; flex-wrap: wrap; height: auto; padding-top: 16px; padding-bottom: 16px;}
    .nav { margin-top: 12px; width: 100%; overflow-x: auto; padding-bottom: 4px; }
    .nav-btn { flex-shrink: 0; }
    .nav-github { display: none; }
    .hero-title { font-size: 2rem; }
    .controls { padding: 0 16px 16px; }
    .repos-section { padding: 0 16px 48px; }
    .filter-row { gap: 6px; }
    .filter-btn { padding: 6px 10px; font-size: 0.75rem; }
    .slide-huge { font-size: 4rem; }
    .slide h3 { font-size: 1.5rem; }
}

/* ---- CARD STAGGER ANIMATION ---- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

.repo-card {
    animation: fadeUp 0.4s ease both;
}

/* ---- BTN GHOST (hero guide button) ---- */
.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-strong);
    gap: 6px;
}
.btn-ghost:hover {
    background: var(--border-color);
    color: var(--text-main);
    border-color: var(--red);
}

/* ---- GUIDE NAV BUTTON ---- */
.guide-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(201, 12, 15, 0.06);
    color: var(--text-muted);
    border: 1px dashed rgba(201, 12, 15, 0.35);
}
.guide-btn:hover {
    background: rgba(201, 12, 15, 0.12);
    color: var(--red-light);
    border-style: solid;
}

/* ========================================
   NAMING GUIDE MODAL
   ======================================== */
.guide-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}
.guide-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.guide-modal {
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: 20px;
    padding: 40px;
    max-width: 780px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 32px 80px rgba(0,0,0,0.5);
    transform: translateY(24px) scale(0.97);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.35s ease;
}
.guide-overlay.active .guide-modal {
    transform: translateY(0) scale(1);
}

/* Close button */
.guide-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--border-color);
    border: none;
    color: var(--text-muted);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}
.guide-close:hover {
    background: rgba(201, 12, 15, 0.15);
    color: var(--red-light);
}

/* Header */
.guide-header { margin-bottom: 32px; }
.guide-badge {
    display: inline-block;
    padding: 3px 12px;
    background: rgba(201, 12, 15, 0.12);
    border: 1px solid rgba(201, 12, 15, 0.3);
    border-radius: 999px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--red-light);
    margin-bottom: 12px;
}
.guide-header h2 {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
    color: var(--text-main);
}
.guide-header p {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Name display with interactive segments */
.guide-name-display {
    background: var(--bg-main);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    padding: 32px 24px 20px;
    margin-bottom: 32px;
    text-align: center;
}

.name-segments {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 12px;
}

.seg-dash {
    color: var(--text-muted-dim);
    font-size: 1.6rem;
    font-family: var(--font-mono);
    font-weight: 300;
    line-height: 1;
    user-select: none;
}

.seg {
    position: relative;
    cursor: pointer;
    border-radius: 8px;
    padding: 6px 10px;
    transition: var(--transition);
    outline: none;
}

.seg-text {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.02em;
    display: block;
    transition: var(--transition);
}

/* Each segment gets a distinct color-coded underline */
.seg:nth-child(1) .seg-text { color: #c90c0f; }
.seg:nth-child(3) .seg-text { color: #e8383b; }
.seg:nth-child(5) .seg-text { color: #ff7b7d; }
.seg:nth-child(7) .seg-text { color: var(--text-muted); }
.seg:nth-child(9) .seg-text { color: var(--red-light); }

.seg:hover .seg-text,
.seg:focus .seg-text {
    transform: translateY(-2px);
}

.seg:nth-child(1):hover, .seg:nth-child(1):focus { background: rgba(201, 12, 15, 0.08); }
.seg:nth-child(3):hover, .seg:nth-child(3):focus { background: rgba(232, 56, 59, 0.08); }
.seg:nth-child(5):hover, .seg:nth-child(5):focus { background: rgba(255, 123, 125, 0.08); }
.seg:nth-child(7):hover, .seg:nth-child(7):focus { background: rgba(189, 188, 188, 0.08); }
.seg:nth-child(9):hover, .seg:nth-child(9):focus { background: rgba(201, 12, 15, 0.08); }

/* Tooltip */
.seg-tooltip {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: 12px;
    padding: 14px 16px;
    min-width: 220px;
    max-width: 280px;
    z-index: 100;
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
    text-align: left;
    animation: tooltipIn 0.2s ease;
    flex-direction: row;
    gap: 12px;
}

.seg:hover .seg-tooltip,
.seg:focus .seg-tooltip {
    display: flex;
}

/* Tooltip that flips leftward on last segment */
.seg-tooltip-left {
    left: auto;
    right: 0;
    transform: none;
}

@keyframes tooltipIn {
    from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.seg-tooltip-left { animation: tooltipInLeft 0.2s ease; }
@keyframes tooltipInLeft {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.tooltip-color {
    width: 4px;
    min-height: 100%;
    border-radius: 2px;
    flex-shrink: 0;
}

.seg-tooltip strong {
    display: block;
    font-size: 0.88rem;
    color: var(--text-main);
    margin-bottom: 4px;
}
.seg-tooltip p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0 0 8px;
}
.seg-tooltip code {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    background: var(--bg-main);
    padding: 1px 4px;
    border-radius: 4px;
    color: var(--red-light);
}

.tooltip-breakdown {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}
.tooltip-breakdown span {
    font-size: 0.75rem;
    color: var(--text-muted-dim);
    background: var(--bg-main);
    padding: 2px 6px;
    border-radius: 4px;
}
.tooltip-breakdown em {
    font-style: normal;
    color: var(--red-light);
    font-weight: 700;
}

.tooltip-examples {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.tooltip-examples span {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    background: rgba(201, 12, 15, 0.1);
    color: var(--red-light);
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid rgba(201, 12, 15, 0.2);
}

.guide-hover-hint {
    font-size: 0.75rem;
    color: var(--text-muted-dim);
    margin-top: 8px;
}

/* Builder section */
.guide-builder {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
}
.guide-builder h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
}

.builder-fields {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 2fr;
    gap: 12px;
    margin-bottom: 16px;
}
.builder-field-wide { grid-column: span 1; }

.builder-field label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted-dim);
    margin-bottom: 6px;
}

.builder-field input,
.builder-field select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 0.875rem;
    font-family: var(--font-mono);
    outline: none;
    transition: var(--transition);
}
.builder-field input:focus,
.builder-field select:focus {
    border-color: var(--red);
    box-shadow: 0 0 0 3px rgba(201, 12, 15, 0.12);
}
.builder-field select option { background: var(--bg-card); }

.builder-preview {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
}
.builder-label {
    font-size: 0.75rem;
    color: var(--text-muted-dim);
    white-space: nowrap;
    font-weight: 600;
}
.builder-preview code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-main);
    flex: 1;
    word-break: break-all;
}
.builder-preview code em {
    font-style: normal;
    color: var(--text-muted-dim);
}
.builder-copy {
    background: var(--red);
    border: none;
    color: #fff;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.78rem;
    font-family: var(--font-sans);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
    white-space: nowrap;
}
.builder-copy:hover {
    background: var(--red-light);
    transform: translateY(-1px);
}
.builder-copy.copied {
    background: #1a7a3c;
}

/* Footer note */
.guide-footer-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 16px;
    background: rgba(26, 122, 60, 0.08);
    border: 1px solid rgba(26, 122, 60, 0.25);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
}
.guide-footer-note svg { color: #4ade80; flex-shrink: 0; margin-top: 1px; }
.guide-footer-note strong { color: var(--text-main); }

/* Responsive builder */
@media (max-width: 640px) {
    .builder-fields { grid-template-columns: 1fr 1fr; }
    .guide-modal { padding: 24px 20px; }
    .seg-text { font-size: 1rem; }
    .seg-dash { font-size: 1rem; }
    .seg-tooltip { min-width: 180px; }
    .guide-header h2 { font-size: 1.4rem; }
}