/* ============================================================
   NexusWeb3 — Design System
   ============================================================ */

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

/* --- Variables --- */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #0f0f14;
    --bg-tertiary: #1a1a1f;
    --border: #262630;
    --text-primary: #ffffff;
    --text-secondary: #a3a3b8;
    --text-tertiary: #737383;
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-orange: #f97316;
    --accent-violet: #8b5cf6;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 20px 40px rgba(59, 130, 246, 0.1);
    --transition: 0.2s ease;
}

/* --- Base --- */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--transition);
}

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

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

code {
    font-family: var(--font-mono);
    background: var(--bg-tertiary);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
    color: var(--accent-green);
}

strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* --- Layout --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.container--narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.section--sm {
    padding: 4rem 0;
}

.section--bg {
    background: var(--bg-secondary);
}

/* --- Grid --- */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

.text-center {
    text-align: center;
}

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

.text-tertiary {
    color: var(--text-tertiary);
}

.accent {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.accent--orange {
    background: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-violet) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 700px;
}

.subtitle--centered {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
    background: rgba(15, 15, 20, 0.85);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo:hover {
    color: var(--text-primary);
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav__link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition);
    position: relative;
}

.nav__link:hover,
.nav__link--active {
    color: var(--text-primary);
}

.nav__link--active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-blue);
    border-radius: 1px;
}

.nav__cta {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    color: #000;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform var(--transition), box-shadow var(--transition);
}

.nav__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    color: #000;
}

/* Mobile menu toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-primary);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: currentColor;
    margin: 5px 0;
    transition: transform var(--transition), opacity var(--transition);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    color: #000;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
    color: #000;
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: var(--text-primary);
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
}

.btn-secondary:hover {
    border-color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.05);
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge--green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
    border-color: rgba(16, 185, 129, 0.2);
}

.badge--orange {
    background: rgba(249, 115, 22, 0.1);
    color: var(--accent-orange);
    border-color: rgba(249, 115, 22, 0.2);
}

.badge--violet {
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent-violet);
    border-color: rgba(139, 92, 246, 0.2);
}

.badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-hover);
}

.card--link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.card--link:hover {
    color: inherit;
}

/* Project Card */
.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-hover);
}

.project-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    flex-shrink: 0;
}

.project-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.project-card__desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    flex-grow: 1;
}

.project-card__link {
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 0.95rem;
    transition: color var(--transition);
}

.project-card__link:hover {
    color: var(--accent-green);
}

/* Pricing Card */
.pricing-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-hover);
}

.pricing-card--featured {
    border-color: var(--accent-blue);
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.05) 0%, var(--bg-secondary) 100%);
}

.pricing-card--featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    color: #000;
    padding: 0.25rem 1rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-card__name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.pricing-card__price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
}

.pricing-card__price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-tertiary);
}

.pricing-card__desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.pricing-card__delivery {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-green);
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-card__features {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex-grow: 1;
}

.pricing-card__features li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    padding-left: 1.5rem;
    position: relative;
}

.pricing-card__features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
}

.pricing-card .btn-primary,
.pricing-card .btn-secondary {
    width: 100%;
    text-align: center;
}

/* ============================================================
   Methodology Step
   ============================================================ */
.methodology-step {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: relative;
}

.methodology-step__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    color: #000;
    font-weight: 800;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.methodology-step__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.methodology-step__desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Steps connector line (horizontal) */
.methodology-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    position: relative;
}

.methodology-steps::before {
    content: '';
    position: absolute;
    top: 20px;
    left: calc(10% + 20px);
    right: calc(10% + 20px);
    height: 2px;
    background: var(--border);
    z-index: 0;
}

.methodology-step {
    position: relative;
    z-index: 1;
}

/* ============================================================
   Stats Bar
   ============================================================ */
.stats-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    flex-wrap: wrap;
}

.stats-bar__item {
    text-align: center;
    white-space: nowrap;
}

.stats-bar__number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-blue);
}

.stats-bar__label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.patch-notice {
    background: rgba(0, 255, 100, 0.05);
    border: 1px solid rgba(0, 255, 100, 0.15);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
    color: #60c080;
    text-align: center;
    margin: 1rem 0;
}

.patch-notice a {
    color: #80e0a0;
    text-decoration: none;
    margin-left: 0.5rem;
}

/* Stat cards (grid layout) */
.stat-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.stat-card__number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
}

.stat-card__label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============================================================
   Filter Tabs
   ============================================================ */
.filter-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.filter-tabs__btn {
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

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

.filter-tabs__btn--active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #000;
    font-weight: 600;
}

/* ============================================================
   Comparison Table (SaaS Killer)
   ============================================================ */
.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 1.25rem 1.5rem;
    text-align: left;
}

.comparison-table thead th {
    background: var(--bg-tertiary);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.comparison-table tbody tr {
    border-bottom: 1px solid var(--border);
}

.comparison-table tbody tr:last-child {
    border-bottom: none;
}

.comparison-table tbody td {
    color: var(--text-secondary);
    font-size: 0.95rem;
    background: var(--bg-secondary);
}

.comparison-table .price-old {
    color: var(--text-tertiary);
    text-decoration: line-through;
}

.comparison-table .price-new {
    color: var(--accent-green);
    font-weight: 700;
}

/* ============================================================
   CTA Banner
   ============================================================ */
.cta-banner {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border: 2px solid var(--accent-blue);
    border-radius: var(--radius-xl);
    padding: 4rem 3rem;
    text-align: center;
}

.cta-banner h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

.cta-banner p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: 2rem;
}

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

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

.breadcrumb__sep {
    color: var(--text-tertiary);
}

/* ============================================================
   Case Study Layout
   ============================================================ */
.case-hero {
    padding: 4rem 0 3rem;
}

.case-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.case-hero__tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.case-section {
    margin-bottom: 4rem;
}

.case-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.case-section p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.feature-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.5;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
}

.faq-item:first-child {
    border-top: 1px solid var(--border);
}

.faq-item summary {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--text-tertiary);
    transition: transform var(--transition);
    flex-shrink: 0;
    margin-left: 1rem;
}

.faq-item[open] summary::after {
    content: '-';
}

.faq-item__answer {
    padding-top: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================================
   Contact Form
   ============================================================ */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-tertiary);
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 3rem 0;
    margin-top: 6rem;
}

.site-footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-footer p {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

/* ============================================================
   Utility Classes
   ============================================================ */
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3rem; }
.mb-8 { margin-bottom: 4rem; }

.mt-4 { margin-top: 2rem; }
.mt-6 { margin-top: 3rem; }
.mt-8 { margin-top: 4rem; }

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.flex-wrap {
    flex-wrap: wrap;
}

/* ============================================================
   Demo Section
   ============================================================ */
.demo-tabs {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.demo-tab {
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.demo-tab:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

.demo-tab--active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #000;
    font-weight: 600;
}

.demo-panel {
    display: none;
}

.demo-panel--active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Demo: Sales Agent Score Gauge */
.demo-score {
    max-width: 500px;
    margin: 2rem auto;
    text-align: center;
}

.demo-score__bar-wrap {
    background: var(--bg-tertiary);
    border-radius: 100px;
    height: 24px;
    overflow: hidden;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
}

.demo-score__bar {
    height: 100%;
    border-radius: 100px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    width: 0%;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.demo-score__number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.demo-score__badge {
    display: inline-block;
    padding: 0.25rem 1rem;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.demo-score__badge--hot {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.demo-score__badge--warm {
    background: rgba(249, 115, 22, 0.15);
    color: var(--accent-orange);
    border: 1px solid rgba(249, 115, 22, 0.3);
}

.demo-score__badge--cold {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.demo-score__signals {
    text-align: left;
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.demo-score__signals h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin-bottom: 0.75rem;
}

.demo-score__signals ul {
    list-style: none;
    padding: 0;
}

.demo-score__signals li {
    padding: 0.35rem 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

/* Demo: Chat UI */
.demo-chat {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.demo-chat__header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.demo-chat__status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
}

.demo-chat__title {
    font-weight: 600;
    font-size: 0.95rem;
}

.demo-chat__messages {
    height: 350px;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.demo-chat__bubble {
    max-width: 80%;
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    line-height: 1.5;
}

.demo-chat__bubble--user {
    align-self: flex-end;
    background: var(--accent-blue);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.demo-chat__bubble--bot {
    align-self: flex-start;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-bottom-left-radius: 4px;
}

.demo-chat__bubble--typing {
    align-self: flex-start;
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    font-style: italic;
}

.demo-chat__bubble--escalation {
    align-self: flex-start;
    background: rgba(249, 115, 22, 0.1);
    border: 1px solid rgba(249, 115, 22, 0.3);
    color: var(--accent-orange);
    font-size: 0.85rem;
}

.demo-chat__confidence {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 0.5rem;
}

.demo-chat__input-wrap {
    display: flex;
    border-top: 1px solid var(--border);
}

.demo-chat__input {
    flex: 1;
    padding: 1rem 1.5rem;
    background: var(--bg-primary);
    border: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
}

.demo-chat__input:focus {
    outline: none;
}

.demo-chat__input::placeholder {
    color: var(--text-tertiary);
}

.demo-chat__send {
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    border: none;
    color: #000;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    transition: opacity var(--transition);
}

.demo-chat__send:hover {
    opacity: 0.9;
}

.demo-chat__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-top: 1px solid var(--border);
    background: var(--bg-primary);
}

.demo-chat__chip {
    padding: 0.35rem 0.75rem;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition);
}

.demo-chat__chip:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

/* Demo: Content Preview */
.demo-content-topics {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.demo-content-topic {
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
}

.demo-content-topic:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

.demo-content-topic--active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #000;
    font-weight: 600;
}

.demo-content-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
}

.demo-content-tab {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
}

.demo-content-tab:hover {
    color: var(--text-primary);
}

.demo-content-tab--active {
    color: var(--text-primary);
    border-bottom-color: var(--accent-blue);
    font-weight: 600;
}

.demo-content-display {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    min-height: 200px;
    max-height: 400px;
    overflow-y: auto;
}

.demo-content-display pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.demo-content-display h1,
.demo-content-display h2,
.demo-content-display h3 {
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.demo-content-display h1 { font-size: 1.5rem; margin-top: 0; }
.demo-content-display h2 { font-size: 1.25rem; }
.demo-content-display h3 { font-size: 1.1rem; }

.demo-content-display p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.demo-content-display strong {
    color: var(--text-primary);
}

.demo-content-meta {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

@keyframes typewriter {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Trust Signal Cards */
.trust-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: transform var(--transition), border-color var(--transition);
}

.trust-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-green);
}

.trust-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1.25rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.trust-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.trust-card__desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Before/After Scenario Cards */
.scenario-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.scenario-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.scenario-card__before,
.scenario-card__after {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    line-height: 1.5;
}

.scenario-card__before {
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid rgba(239, 68, 68, 0.15);
    color: var(--text-secondary);
}

.scenario-card__before strong {
    color: #ef4444;
}

.scenario-card__after {
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.15);
    color: var(--text-secondary);
}

.scenario-card__after strong {
    color: var(--accent-green);
}

/* VPS Status Indicator */
.vps-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.vps-status__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-tertiary);
}

.vps-status__dot--online {
    background: var(--accent-green);
}

/* Demo Form (Sales Agent) */
.demo-form {
    max-width: 500px;
    margin: 0 auto;
}

.demo-form .form-group {
    margin-bottom: 1rem;
}

.demo-form input,
.demo-form textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.demo-form input:focus,
.demo-form textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.demo-form textarea {
    min-height: 80px;
    resize: vertical;
}

.demo-form .btn-primary {
    width: 100%;
    text-align: center;
}

/* Live toggle */
.live-only {
    display: none;
}

/* Contact Form Select */
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23737383' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* Success/Error states for contact form */
.form-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
}

.form-success h3 {
    color: var(--accent-green);
    margin-bottom: 0.75rem;
}

.form-success p {
    color: var(--text-secondary);
}

.form-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #ef4444;
}

/* ============================================================
   Responsive — Tablet (768px)
   ============================================================ */
@media (max-width: 768px) {
    h1 {
        font-size: 2.25rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .hero {
        padding: 5rem 0 4rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .section {
        padding: 4rem 0;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .methodology-steps {
        grid-template-columns: 1fr;
    }

    .methodology-steps::before {
        display: none;
    }

    .stats-bar {
        gap: 1.5rem;
    }

    .stats-bar__number {
        font-size: 1.5rem;
    }

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

    .comparison-table {
        font-size: 0.85rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.875rem 1rem;
    }

    .cta-banner {
        padding: 3rem 2rem;
    }

    .cta-banner h2 {
        font-size: 1.75rem;
    }

    /* Mobile nav */
    .nav-toggle {
        display: block;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--bg-secondary);
        border-left: 1px solid var(--border);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 1.5rem;
        transition: right 0.3s ease;
        z-index: 999;
    }

    .nav--open {
        right: 0;
    }

    .nav__cta {
        text-align: center;
    }

    .site-footer .container {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    .demo-tabs {
        flex-direction: column;
        align-items: stretch;
    }

    .demo-chat__messages {
        height: 280px;
    }

    .demo-content-topics {
        flex-direction: column;
        align-items: stretch;
    }

    .demo-content-display {
        max-height: 300px;
    }

    .demo-chat__chips {
        justify-content: center;
    }
}

/* ============================================================
   Responsive — Small mobile (480px)
   ============================================================ */
@media (max-width: 480px) {
    .container,
    .container--narrow {
        padding: 0 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .grid-4 {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        flex-direction: column;
        gap: 1rem;
    }

    .hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero__actions .btn-primary,
    .hero__actions .btn-secondary {
        text-align: center;
    }

    .pricing-card {
        padding: 2rem 1.5rem;
    }

    .demo-chat__bubble {
        max-width: 90%;
    }

    .demo-score__number {
        font-size: 2.5rem;
    }

    .demo-content-tabs {
        flex-wrap: wrap;
    }
}

/* ============================================================
   Protocol Infrastructure Styles
   ============================================================ */

/* Architecture Diagram */
.arch-diagram {
    max-width: 800px;
    margin: 0 auto;
}

.arch-layer {
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem 2rem;
    text-align: center;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.arch-layer:hover {
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.1);
}

.arch-layer--safety {
    border-color: rgba(249, 115, 22, 0.4);
    background: rgba(249, 115, 22, 0.05);
}

.arch-layer--safety:hover {
    border-color: var(--accent-orange);
}

.arch-layer--financial {
    border-color: rgba(59, 130, 246, 0.4);
    background: rgba(59, 130, 246, 0.05);
}

.arch-layer--financial:hover {
    border-color: var(--accent-blue);
}

.arch-layer--utility {
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.05);
}

.arch-layer--utility:hover {
    border-color: var(--accent-green);
}

.arch-layer__label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.arch-layer__protocols {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.arch-connector {
    width: 2px;
    height: 24px;
    background: var(--border);
    margin: 0 auto;
}

.arch-base {
    text-align: center;
    margin-top: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* Protocol Layer */
.protocol-layer__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.protocol-layer__badge {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 1rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.03em;
}

.protocol-layer__badge--financial {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.protocol-layer__badge--utility {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.protocol-layer__badge--safety {
    background: rgba(249, 115, 22, 0.15);
    color: var(--accent-orange);
    border: 1px solid rgba(249, 115, 22, 0.3);
}

.protocol-layer__range {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* Protocol Grid */
.protocol-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.75rem;
}

/* Protocol Card */
.protocol-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    text-decoration: none;
    color: inherit;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.protocol-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-hover);
    color: inherit;
}

.protocol-card__name {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.protocol-card__desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
    flex-grow: 1;
}

.protocol-card__fee {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-green);
    margin-top: auto;
}

/* Security Properties */
.security-props {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.security-prop {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.security-prop__check {
    color: var(--accent-green);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

/* Finding Cards */
.finding-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.finding-card--critical {
    border-left: 3px solid #ef4444;
}

.finding-card--high {
    border-left: 3px solid var(--accent-orange);
}

.finding-card--medium {
    border-left: 3px solid #eab308;
}

.finding-card__severity {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

.finding-card--critical .finding-card__severity { color: #ef4444; }
.finding-card--high .finding-card__severity { color: var(--accent-orange); }
.finding-card--medium .finding-card__severity { color: #eab308; }

.finding-card__id {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.finding-card__title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

.finding-card__desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.finding-card__fix {
    font-size: 0.8rem;
    color: var(--accent-green);
    font-weight: 500;
}

/* Skill Cards */
.skill-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
}

.skill-card__badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
    align-self: center;
}

.skill-card__badge--financial {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.skill-card__badge--utility {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.skill-card__badge--safety {
    background: rgba(249, 115, 22, 0.15);
    color: var(--accent-orange);
    border: 1px solid rgba(249, 115, 22, 0.3);
}

.skill-card__name {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.skill-card__cmd {
    display: block;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-green);
    margin-top: auto;
}

/* Code Block */
.code-block {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.code-block .code-comment {
    color: var(--text-tertiary);
}

/* Stat Card Sub */
.stat-card__sub {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 0.25rem;
}

/* Fee Details (collapsible) */
.fee-details {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.fee-details__summary {
    padding: 1rem 1.5rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.fee-details__summary::-webkit-details-marker {
    display: none;
}

.fee-details__summary::before {
    content: '+';
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--accent-blue);
    transition: transform var(--transition);
}

.fee-details[open] .fee-details__summary::before {
    content: '-';
}

.fee-table-wrap {
    padding: 0 1.5rem 1.5rem;
}

.fee-table-wrap .comparison-table {
    margin: 0;
}

/* Credibility Grid */
.credibility-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.credibility-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.credibility-card__icon {
    font-size: 1.5rem;
    line-height: 1;
}

.credibility-card__title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.credibility-card__text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Treasury Block */
.treasury-block {
    text-align: center;
    margin: 2rem auto;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--radius-lg);
    max-width: 600px;
}

.treasury-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    margin-bottom: 0.5rem;
}

.treasury-address code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    word-break: break-all;
}

.treasury-link {
    display: inline-block;
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--transition);
}

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

.treasury-note {
    font-size: 0.8rem;
    color: #505060;
    margin-top: 0.5rem;
}

/* Protocol Grid Responsive */
@media (max-width: 1024px) {
    .protocol-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .protocol-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .security-props {
        grid-template-columns: 1fr;
    }

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

    .arch-layer {
        padding: 1rem 1.25rem;
    }

    .arch-layer__protocols {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .protocol-grid {
        grid-template-columns: 1fr;
    }
}