/* ==========================================================================
   GOODYEAR AOP CHATBOT — 100% COMPLETE CASE STUDY DECK STYLESHEET
   Goodyear Official Branding + Agency-Grade Layout (Flexy / Figma Style)
   ========================================================================== */

/* --- COLOR PALETTE & DESIGN TOKENS --- */
:root {
    /* Goodyear Official Brand Colors */
    --gy-navy-dark: #050B18;
    --gy-navy-card: #0D162D;
    --gy-navy-surface: #14203E;
    --gy-blue-primary: #002F6C;
    --gy-blue-light: #004BB3;
    --gy-gold: #FFC72C;
    --gy-gold-hover: #E5B122;
    --gy-cyan: #00F0FF;
    
    /* Neutral Text Tokens */
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    
    /* Borders & Highlights */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(255, 199, 44, 0.35);
    --glass-bg: rgba(13, 22, 45, 0.85);
    
    /* Status Colors */
    --status-green: #10B981;
    --status-yellow: #F59E0B;
    --status-red: #EF4444;
    --status-purple: #A855F7;
    
    /* Typography Specs */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-code: 'Fira Code', monospace;
    
    /* Layout Constants */
    --container-max-width: 1280px;
    --nav-height: 70px;
    --section-spacing: 120px;
    --card-radius: 20px;
    
    /* Elevation Shadows */
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 30px 60px -12px rgba(0, 0, 0, 0.6);
    --glow-gold: 0 0 25px rgba(255, 199, 44, 0.25);
    
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables */
body.light-theme {
    --gy-navy-dark: #F8FAFC;
    --gy-navy-card: #FFFFFF;
    --gy-navy-surface: #F1F5F9;
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-highlight: rgba(0, 47, 108, 0.3);
    --glass-bg: rgba(255, 255, 255, 0.9);
}

/* --- RESET & BASE STYLES --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-body);
    background-color: var(--gy-navy-dark);
    color: var(--text-primary);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- SCROLL PROGRESS BAR --- */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--gy-gold) 0%, var(--gy-cyan) 100%);
    width: 0%;
    z-index: 1000;
    transition: width 0.1s ease-out;
}

/* --- TOP STICKY NAVIGATION BAR --- */
.top-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-height);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 900;
}

.nav-container {
    max-width: var(--container-max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.official-logo-box {
    display: flex;
    align-items: center;
    gap: 12px;
}

.gy-logo-svg {
    height: 28px;
    width: auto;
}

.project-title-badge {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
    border-left: 1px solid var(--border-color);
    padding-left: 12px;
}

.desktop-menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 6px;
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.highlight {
    color: var(--gy-gold);
    border: 1px solid var(--border-highlight);
    background: rgba(255, 199, 44, 0.1);
}

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

.icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.icon-btn:hover {
    color: var(--gy-gold);
    border-color: var(--gy-gold);
}

/* --- MAIN LAYOUT CONTAINER --- */
.case-study-container {
    max-width: var(--container-max-width);
    margin: calc(var(--nav-height) + 40px) auto 80px;
    padding: 0 32px;
    display: flex;
    flex-direction: column;
    gap: var(--section-spacing);
}

.section-wrapper {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.section-eyebrow {
    font-family: var(--font-code);
    font-size: 0.85rem;
    color: var(--gy-gold);
    letter-spacing: 2px;
    font-weight: 600;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-eyebrow::after {
    content: '';
    height: 1px;
    width: 60px;
    background: var(--border-highlight);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.6rem;
    font-weight: 700;
    line-height: 1.18;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 850px;
    line-height: 1.7;
}

/* --- HERO SECTION --- */
.hero-wrapper {
    display: flex;
    flex-direction: column;
    gap: 40px;
    padding-top: 10px;
}

.hero-meta-header {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.category-tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 199, 44, 0.12);
    border: 1px solid rgba(255, 199, 44, 0.3);
    color: var(--gy-gold);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 30px;
    letter-spacing: 1px;
    width: fit-content;
    text-transform: uppercase;
}

.hero-main-title {
    font-family: var(--font-heading);
    font-size: 4.2rem;
    font-weight: 800;
    line-height: 1.08;
    color: #FFFFFF;
    letter-spacing: -0.03em;
}

.hero-sub-title {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 500;
    color: var(--text-secondary);
    max-width: 920px;
    line-height: 1.4;
}

.project-meta-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.meta-item { display: flex; flex-direction: column; gap: 4px; }
.meta-item .label { font-family: var(--font-code); font-size: 0.75rem; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; }
.meta-item .val { font-size: 1.05rem; font-weight: 600; color: var(--text-primary); }

/* Realistic Desktop Mockup */
.hero-mockup-frame {
    background: var(--gy-navy-card);
    border: 1px solid var(--border-highlight);
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--glow-gold);
}

.browser-header {
    background: #091024;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
}

.window-dots { display: flex; gap: 8px; }
.w-dot { width: 12px; height: 12px; border-radius: 50%; }
.w-dot.red { background: #FF5F56; }
.w-dot.yellow { background: #FFBD2E; }
.w-dot.green { background: #27C93F; }

.browser-url-bar {
    flex: 1;
    max-width: 520px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    padding: 4px 12px;
    font-family: var(--font-code);
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-mockup-body {
    padding: 32px;
    background: linear-gradient(180deg, var(--gy-navy-card) 0%, var(--gy-navy-dark) 100%);
}

.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-box {
    background: var(--gy-navy-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: var(--transition);
}

.stat-box:hover {
    transform: translateY(-4px);
    border-color: var(--border-highlight);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--gy-gold);
    line-height: 1;
}

.stat-label { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.4; }

/* --- CARDS & GRID UTILITIES --- */
.grid-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4col { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.card-block {
    background: var(--gy-navy-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 36px;
}

.lead-p {
    font-size: 1.2rem;
    color: var(--text-primary);
    line-height: 1.7;
    margin-bottom: 16px;
}

/* Feature Check Bullet List */
.bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.bullet-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.bullet-list li i {
    color: var(--status-green);
    margin-top: 3px;
    flex-shrink: 0;
}

/* Problem Banner */
.problem-hero-banner {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.25);
    border-radius: 16px;
    padding: 28px;
}

.problem-quote {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-style: italic;
    color: #FCA5A5;
    line-height: 1.6;
}

.b-card {
    background: var(--gy-navy-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.b-icon {
    width: 44px; height: 44px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
}
.b-icon.red { background: rgba(239, 68, 68, 0.15); color: #EF4444; }
.b-icon.yellow { background: rgba(245, 158, 11, 0.15); color: #F59E0B; }
.b-icon.orange { background: rgba(249, 115, 22, 0.15); color: #F97316; }
.b-icon.purple { background: rgba(168, 85, 247, 0.15); color: #A855F7; }

/* Table Styling */
.table-frame {
    background: var(--gy-navy-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow-x: auto;
}

.agency-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

.agency-table th {
    background: var(--gy-navy-surface);
    padding: 16px 20px;
    font-family: var(--font-heading);
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-color);
}

.agency-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.agency-table tr:hover { background: rgba(255, 255, 255, 0.02); }

.badge-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-tag.high { background: rgba(239, 68, 68, 0.15); color: #FCA5A5; border: 1px solid rgba(239, 68, 68, 0.3); }
.badge-tag.medium { background: rgba(245, 158, 11, 0.15); color: #FDE047; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-tag.green { background: rgba(16, 185, 129, 0.15); color: #6EE7B7; border: 1px solid rgba(16, 185, 129, 0.3); }

/* Personas */
.persona-card-full {
    background: var(--gy-navy-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.persona-head { display: flex; align-items: center; gap: 16px; border-bottom: 1px solid var(--border-color); padding-bottom: 14px; }
.avatar-circle { width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; font-weight: 700; }
.avatar-circle.emily { background: rgba(0, 240, 255, 0.15); color: var(--gy-cyan); border: 1px solid rgba(0, 240, 255, 0.3); }
.avatar-circle.michael { background: rgba(255, 199, 44, 0.15); color: var(--gy-gold); border: 1px solid rgba(255, 199, 44, 0.3); }
.avatar-circle.david { background: rgba(16, 185, 129, 0.15); color: var(--status-green); border: 1px solid rgba(16, 185, 129, 0.3); }

.p-block { font-size: 0.88rem; }
.p-block label { font-size: 0.72rem; font-family: var(--font-code); color: var(--text-muted); text-transform: uppercase; display: block; margin-bottom: 4px; }
.p-block p { color: var(--text-secondary); }

.p-block.must-have {
    background: rgba(255, 199, 44, 0.08);
    border: 1px solid rgba(255, 199, 44, 0.25);
    padding: 12px;
    border-radius: 8px;
}
.p-block.must-have p { color: var(--gy-gold); font-weight: 600; }

/* Design System Box */
.design-system-box {
    background: var(--gy-navy-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 36px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.color-swatches-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.swatch-card { background: var(--gy-navy-dark); border: 1px solid var(--border-color); border-radius: 12px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.swatch-color-box { height: 50px; border-radius: 8px; }
.swatch-name { font-size: 0.82rem; font-weight: 600; }
.swatch-hex { font-family: var(--font-code); font-size: 0.72rem; color: var(--text-muted); }

/* Core Interface Walkthrough */
.screen-tabs-bar { display: flex; gap: 12px; border-bottom: 1px solid var(--border-color); padding-bottom: 16px; }
.s-tab-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 12px 20px;
    border-radius: 10px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.s-tab-btn:hover, .s-tab-btn.active {
    background: var(--gy-navy-card);
    color: var(--gy-gold);
    border-color: var(--gy-gold);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.screen-view-container {
    background: var(--gy-navy-card);
    border: 1px solid var(--border-highlight);
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.app-copilot-header {
    background: var(--gy-blue-primary);
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand-label { font-family: var(--font-heading); font-weight: 800; font-size: 0.95rem; color: #FFF; display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.copilot-search-bar {
    flex: 1;
    max-width: 620px;
    background: rgba(15, 26, 52, 0.95);
    border: 1.5px solid var(--gy-gold);
    border-radius: 30px;
    padding: 6px 8px 6px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--glow-gold);
}

.copilot-input-text { font-size: 0.85rem; color: #FFF; }
.copilot-btn { background: var(--gy-gold); color: #000; border: none; font-weight: 700; font-size: 0.8rem; padding: 6px 16px; border-radius: 20px; cursor: pointer; display: flex; align-items: center; gap: 6px; }

.app-screen-body { padding: 28px; }

.dense-data-grid { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.dense-data-grid th { background: var(--gy-navy-surface); padding: 12px 16px; text-align: left; font-size: 0.75rem; font-family: var(--font-code); color: var(--text-muted); border-bottom: 1px solid var(--border-color); }
.dense-data-grid td { padding: 14px 16px; border-bottom: 1px solid var(--border-color); }
.dense-data-grid tr.alert-row { background: rgba(255, 199, 44, 0.04); border-left: 4px solid var(--gy-gold); }

/* Simulator */
.playground-card {
    background: var(--gy-navy-dark);
    border: 1px solid var(--border-highlight);
    border-radius: var(--card-radius);
    overflow: hidden;
    display: grid;
    grid-template-columns: 340px 1fr;
    box-shadow: var(--shadow-lg);
}

.play-sidebar { background: var(--gy-navy-card); padding: 24px; border-right: 1px solid var(--border-color); display: flex; flex-direction: column; gap: 16px; }
.query-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    padding: 12px;
    text-align: left;
    font-family: var(--font-body);
    font-size: 0.83rem;
    cursor: pointer;
    display: flex;
    gap: 10px;
    transition: var(--transition);
}
.query-btn:hover, .query-btn.active { background: rgba(255, 199, 44, 0.1); border-color: var(--gy-gold); color: var(--text-primary); }

.play-chat-box { display: flex; flex-direction: column; height: 500px; }
.chat-log { flex: 1; padding: 24px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px; }
.chat-bubble { max-width: 82%; padding: 14px 18px; border-radius: 14px; font-size: 0.9rem; line-height: 1.5; }
.chat-bubble.user { align-self: flex-end; background: var(--gy-blue-primary); color: #FFF; border-bottom-right-radius: 2px; }
.chat-bubble.ai { align-self: flex-start; background: var(--gy-navy-surface); border: 1px solid var(--border-color); border-left: 4px solid var(--gy-gold); color: var(--text-primary); border-bottom-left-radius: 2px; }

.chat-input-bar { padding: 16px 20px; background: var(--gy-navy-card); border-top: 1px solid var(--border-color); display: flex; gap: 12px; }
#sim-input { flex: 1; background: var(--gy-navy-dark); border: 1px solid var(--border-color); border-radius: 8px; padding: 10px 14px; color: var(--text-primary); outline: none; }

/* Process Cards */
.p-step-card { background: var(--gy-navy-card); border: 1px solid var(--border-color); border-radius: var(--card-radius); padding: 28px; display: flex; flex-direction: column; gap: 12px; }
.p-step-num { font-family: var(--font-code); font-size: 2rem; font-weight: 800; color: var(--gy-gold); }

/* Appendix Cards */
.appendix-card {
    background: var(--gy-navy-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}
.appendix-card i { font-size: 1.5rem; color: var(--gy-gold); }

/* Footer */
.case-study-footer {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

@media (max-width: 1024px) {
    .case-study-container { padding: 0 20px; }
    .hero-main-title { font-size: 3rem; }
    .project-meta-strip, .hero-stats-grid, .grid-4col, .color-swatches-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-3col, .grid-2col, .playground-card { grid-template-columns: 1fr; }
}