/* ============================================
   READYCACHE // Landing Page
   Aesthetic: Rugged Technical + Field Guide
   Light Mode
   ============================================ */

:root {
    /* Light mode palette */
    --navy: #0F2540;
    --navy-light: #3A5068;
    --paper: #F3F1DA;
    --paper-dark: #DDD8CC;
    --cream: #F5F0E4;
    --army: #4A5D3A;
    --army-light: #6B8E5B;
    --alert: #B83A3A;
    --alert-bg: #F8EDED;

    /* Type */
    --font-display: 'Archivo Black', Impact, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    --font-body: 'DM Sans', -apple-system, sans-serif;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 40px;
    --space-2xl: 60px;
    --space-3xl: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--paper);
    color: var(--navy);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--navy);
    color: var(--paper);
    padding: 10px 14px;
    font-family: var(--font-mono);
    z-index: 10001;
}

.skip-link:focus {
    left: 12px;
    top: 12px;
}

/* Grain overlay */
.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    mix-blend-mode: multiply;
}

/* Topo lines */
.topo-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.topo-lines svg {
    width: 100%;
    height: 100%;
}

.topo-lines path {
    fill: none;
    stroke: var(--army);
    stroke-width: 1.5;
    opacity: 0.2;
}

.topo-lines path:nth-child(odd) {
    stroke: var(--navy-light);
    stroke-width: 1;
    opacity: 0.15;
}

.topo-lines path:nth-child(3),
.topo-lines path:nth-child(7),
.topo-lines path:nth-child(11) {
    stroke: var(--army);
    stroke-width: 2.5;
    opacity: 0.12;
}

.topo-lines path:nth-child(4n) {
    stroke-dasharray: 8 4;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3 {
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    line-height: 0.95;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    background: linear-gradient(to bottom, var(--paper) 0%, transparent 100%);
}

.nav-brand {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
}

.brand-logo {
    height: 36px;
    width: 36px;
    object-fit: contain;
    flex-shrink: 0;
}

.brand-text {
    display: flex;
    flex-direction: column;
    border-left: 3px solid var(--army);
    padding-left: var(--space-md);
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    letter-spacing: 0.02em;
}

.brand-version {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--navy-light);
    letter-spacing: 0.1em;
}

.nav-status {
    display: flex;
    gap: var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--navy-light);
}

/* ============================================
   Hero
   ============================================ */
.hero {
    min-height: 100vh;
    padding: 120px 0 var(--space-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.hero > .container {
    max-width: none;
    margin: 0;
    padding: 0 var(--space-xl);
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    color: var(--army);
    margin-bottom: var(--space-md);
    position: relative;
    padding-left: 20px;
}

.hero-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 2px;
    background: var(--army);
}

.hero-title {
    font-size: clamp(3.5rem, 10vw, 7rem);
    margin-bottom: var(--space-lg);
    line-height: 0.9;
}

.title-accent {
    color: var(--army);
    display: inline-block;
    position: relative;
}

.title-accent::after {
    content: '';
    position: absolute;
    bottom: 0.1em;
    left: 0;
    right: 0;
    height: 0.15em;
    background: var(--army);
    opacity: 0.3;
}

.hero-text {
    max-width: 600px;
}

.hero-text .hero-desc {
    background: rgba(255,255,255,0.85);
    border-left: 4px solid var(--army);
    padding: var(--space-lg);
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    backdrop-filter: blur(4px);
}

.hero-ctas {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.hero-stats {
    display: flex;
    flex-direction: row;
    gap: 2px;
    background: var(--navy);
    padding: 2px;
    width: fit-content;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-xl);
    background: var(--paper);
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2rem;
    line-height: 1;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--navy-light);
    text-transform: uppercase;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background: var(--navy);
    color: var(--paper);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    padding: var(--space-md) var(--space-xl);
    border: none;
    text-decoration: none;
    position: relative;
    transform: rotate(-0.5deg);
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--army);
    z-index: -1;
    transition: transform 0.2s ease;
}

.btn-primary:hover {
    background: var(--army);
    color: var(--paper);
    transform: rotate(0deg);
}

.btn-primary:hover::after {
    transform: translate(3px, 3px);
    border-color: var(--navy);
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: var(--navy);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    padding: var(--space-md) var(--space-xl);
    border: 2px solid var(--navy);
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: var(--navy);
    color: var(--paper);
}

/* ============================================
   Section Header
   ============================================ */
.section-header {
    margin-bottom: var(--space-lg);
}

.section-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--army);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
}

/* ============================================
   Demo Section
   ============================================ */
.demo-section {
    padding: var(--space-3xl) 0;
    background: var(--cream);
    border-top: 3px solid var(--navy);
    border-bottom: 3px solid var(--navy);
}

.demo-interface {
    display: grid;
    grid-template-columns: 380px 1fr;
    border: 2px solid var(--navy);
    background: var(--navy);
    gap: 2px;
}

.demo-queries {
    background: var(--navy);
    padding: var(--space-lg);
}

.queries-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    color: rgba(255,255,255,0.5);
    margin-bottom: var(--space-md);
}

/* Custom query input */
.custom-query-container {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.demo-source-mode {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.demo-source-btn {
    border: 1px solid var(--navy-light);
    background: #fff;
    color: var(--navy);
    font-family: var(--font-mono);
    font-size: 0.64rem;
    letter-spacing: 0.06em;
    padding: 4px 8px;
    cursor: pointer;
    min-height: 44px;
}

.demo-source-btn.active {
    background: var(--navy);
    color: var(--paper);
}

.custom-query-input {
    flex: 1;
    padding: var(--space-md);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.15s ease;
}

.custom-query-input::placeholder {
    color: rgba(255,255,255,0.4);
}

.custom-query-input:focus {
    background: rgba(255,255,255,0.15);
    border-color: var(--army-light);
}

.ask-btn {
    padding: var(--space-md) var(--space-lg);
    background: var(--army);
    border: none;
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.15s ease;
    min-height: 44px;
}

.ask-btn:hover {
    background: var(--army-light);
}

.ask-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.demo-rate-status {
    margin-bottom: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    color: rgba(255, 255, 255, 0.78);
}

.queries-divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-md) 0;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.3);
    text-transform: uppercase;
}

.queries-divider::before,
.queries-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,0.15);
}

/* Loading state for response */
.demo-response.loading .response-body {
    opacity: 0.5;
}

.demo-response.loading .response-status::after {
    content: ' THINKING...';
}

.response-loading {
    display: none;
    padding: var(--space-xl);
    text-align: center;
    font-family: var(--font-mono);
    color: var(--navy-light);
}

.demo-response.loading .response-loading {
    display: block;
}

.demo-response.loading .response-body > *:not(.response-loading) {
    display: none;
}

/* Streaming text effect */
.streaming-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--army);
    margin-left: 2px;
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Error state */
.response-error {
    padding: var(--space-lg);
    background: var(--alert-bg);
    border-left: 4px solid var(--alert);
    color: var(--alert);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* Loading spinner */
.loading-spinner {
    font-size: 2rem;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-bottom: var(--space-md);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.response-loading {
    padding: var(--space-xl);
    text-align: center;
    font-family: var(--font-mono);
    color: var(--navy-light);
}

.response-loading p {
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

.demo-inline-notice {
    margin-top: var(--space-sm);
    border-left: 3px solid #8a4a00;
    background: #fff3df;
    color: #8a4a00;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.03em;
    padding: 8px 10px;
}

.query-btn {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    width: 100%;
    padding: var(--space-md);
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: #fff;
    text-align: left;
    margin-bottom: var(--space-sm);
    cursor: pointer;
    transition: all 0.15s ease;
    min-height: 44px;
}

.query-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
}

.query-btn.active {
    background: var(--army);
    border-color: var(--army);
}

.query-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    opacity: 0.7;
}

.query-text {
    font-size: 0.9rem;
    line-height: 1.4;
}

.demo-response {
    background: var(--paper);
}

.response-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    background: var(--army);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
}

.response-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Hero entrance animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.hero-label {
    animation: fadeIn 0.6s ease-out 0.1s both;
}

.hero-title {
    animation: slideUp 0.7s ease-out 0.2s both;
}

.hero-desc {
    animation: slideUp 0.7s ease-out 0.35s both;
}

.hero-ctas {
    animation: slideUp 0.7s ease-out 0.5s both;
}

.hero-stats {
    animation: slideUp 0.7s ease-out 0.65s both;
}

.response-body {
    padding: var(--space-lg);
}

.response-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
}

.response-answer {
    background: #fff;
    border: 1px solid var(--navy);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
}

.response-trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.response-state-banner,
.response-source-banner {
    border-left: 3px solid var(--navy-light);
    background: #fff;
    padding: 8px 10px;
    margin-bottom: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.04em;
}

.response-state-banner.state-limited {
    border-left-color: #8a4a00;
    background: #fff3df;
    color: #8a4a00;
}

.response-state-banner.state-no-answer {
    border-left-color: var(--alert);
    background: var(--alert-bg);
    color: var(--alert);
}

.response-source-banner.source-mixed,
.response-source-banner.source-user {
    border-left-color: #8a4a00;
    background: #fff3df;
    color: #8a4a00;
}

.response-assumptions {
    border: 1px solid var(--paper-dark);
    background: #fff;
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-md);
}
.response-disclaimer {
    border-left: 3px solid var(--alert);
    background: var(--alert-bg);
    color: var(--navy);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    line-height: 1.45;
    padding: 8px 10px;
    margin-bottom: var(--space-md);
}
.response-disclaimer strong {
    color: var(--alert);
}

.assumption-text {
    color: var(--navy-light);
    font-size: 0.92rem;
}

.assumption-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.assumption-tag {
    border: 1px solid var(--paper-dark);
    background: var(--paper);
    color: var(--navy);
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.03em;
    padding: 2px 6px;
}

.trust-chip {
    border: 1px solid var(--navy-light);
    background: #fff;
    color: var(--navy);
    font-family: var(--font-mono);
    font-size: 0.64rem;
    letter-spacing: 0.06em;
    padding: 3px 7px;
}

.trust-chip.state-limited,
.trust-chip.conf-low {
    border-color: #8a4a00;
    color: #8a4a00;
}

.trust-chip.state-no-answer,
.trust-chip.conf-insufficient {
    border-color: var(--alert);
    color: var(--alert);
}

.answer-label,
.checklist-label,
.warning-label,
.citations-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--navy-light);
    margin-bottom: var(--space-sm);
}

.response-checklist {
    margin-bottom: var(--space-lg);
}

.response-checklist ul {
    list-style: none;
}

.response-checklist li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--paper-dark);
    display: flex;
    gap: var(--space-sm);
}

.check {
    color: var(--army);
    font-weight: 600;
    font-family: var(--font-mono);
}

.response-warnings {
    background: var(--alert-bg);
    border-left: 3px solid var(--alert);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
}

.warning-label {
    color: var(--alert);
}

.response-warnings ul {
    list-style: none;
}

.response-warnings li {
    padding: var(--space-xs) 0;
    color: var(--alert);
    font-size: 0.95rem;
}

.response-citations {
    background: var(--paper-dark);
    padding: var(--space-md);
    border-top: 1px solid var(--navy-light);
}

.response-next-actions {
    margin-top: var(--space-md);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.next-action-btn {
    border: 1px solid var(--navy-light);
    background: #fff;
    color: var(--navy);
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.04em;
    padding: 5px 8px;
    cursor: pointer;
    min-height: 44px;
}

.citation-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.citation {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: #fff;
    border: 1px solid var(--navy-light);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--navy);
    cursor: pointer;
    transition: all 0.15s ease;
    min-height: 44px;
}

.citation-source-tag {
    margin-left: auto;
    font-size: 0.62rem;
    letter-spacing: 0.05em;
    border: 1px solid;
    padding: 2px 5px;
}

.citation-source-tag.curated {
    color: var(--army);
    border-color: var(--army);
}

.citation-source-tag.user {
    color: #8a4a00;
    border-color: #8a4a00;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
    outline: 3px solid #f1a208;
    outline-offset: 2px;
}

.citation:hover {
    background: var(--navy);
    color: #fff;
    border-color: var(--navy);
}

.citation-icon {
    color: var(--army);
}

.citation:hover .citation-icon {
    color: var(--army-light);
}

.citation-page {
    opacity: 0.6;
    font-size: 0.7rem;
}

.response-actions {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--paper-dark);
}

.action-btn {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    color: var(--navy-light);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm) 0;
    transition: color 0.15s;
}

.action-btn:hover {
    color: var(--navy);
}

.demo-cta {
    text-align: center;
    margin-top: var(--space-xl);
}

.demo-disclaimer {
    margin-top: var(--space-lg);
    border-left: 4px solid var(--alert);
    background: var(--alert-bg);
    padding: 12px 14px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.demo-disclaimer strong {
    font-family: var(--font-mono);
    letter-spacing: 0.03em;
}

/* ============================================
   Why Section
   ============================================ */
.why-section {
    padding: var(--space-3xl) 0;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--navy);
    border: 2px solid var(--navy);
}

.why-card {
    background: var(--paper);
    padding: var(--space-xl);
    transition: background 0.2s;
}

.why-card:hover {
    background: #fff;
}

.why-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--army);
    margin-bottom: var(--space-md);
}

.why-card h3 {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.why-card p {
    color: var(--navy-light);
    font-size: 1rem;
}

/* ============================================
   Modules Section
   ============================================ */
.modules-section {
    padding: var(--space-3xl) 0;
    background: var(--navy);
    color: #fff;
}

.modules-section .section-label {
    color: var(--army-light);
}

.modules-section .section-title {
    color: #fff;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
}

.module-card {
    background: var(--navy);
    padding: var(--space-xl);
    border: 1px solid rgba(255,255,255,0.1);
    transition: background 0.2s;
}

.module-card:hover {
    background: rgba(255,255,255,0.05);
}

.module-tag {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--army-light);
    margin-bottom: var(--space-md);
}

.module-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.module-list {
    list-style: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
}

.module-list li {
    padding: var(--space-xs) 0;
}

/* ============================================
   Trust Section
   ============================================ */
.trust-section {
    padding: var(--space-3xl) 0;
    border-top: 3px solid var(--navy);
    border-bottom: 3px solid var(--navy);
}

.trust-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
}

.trust-desc {
    font-size: 1.15rem;
    margin-top: var(--space-lg);
    max-width: 450px;
    line-height: 1.6;
    color: var(--navy-light);
}

.citation-demo {
    background: var(--navy);
    color: #fff;
    font-family: var(--font-mono);
}

.citation-demo-header {
    padding: var(--space-md);
    border-bottom: 1px solid rgba(255,255,255,0.15);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.5);
}

.citation-demo-body {
    padding: var(--space-lg);
    font-size: 0.85rem;
    line-height: 1.8;
}

.trace-line {
    color: rgba(255,255,255,0.6);
}

.trace-line.highlight {
    color: var(--army-light);
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing-section {
    padding: var(--space-3xl) 0;
    background: var(--cream);
    border-top: 3px solid var(--navy);
    border-bottom: 3px solid var(--navy);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
    max-width: 880px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--paper);
    border: 2px solid var(--navy);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 8px 8px 0 var(--navy);
}

.pricing-card-featured {
    background: var(--navy);
    color: #fff;
    border-color: var(--army);
}

.pricing-card-featured:hover {
    box-shadow: 8px 8px 0 var(--army);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: var(--space-lg);
    background: var(--army);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: var(--space-xs) var(--space-md);
}

.pricing-card-header {
    padding: var(--space-xl);
    border-bottom: 2px solid var(--navy);
}

.pricing-card-featured .pricing-card-header {
    border-bottom-color: rgba(255,255,255,0.2);
}

.pricing-tag {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    color: var(--army);
    margin-bottom: var(--space-sm);
}

.pricing-card-featured .pricing-tag {
    color: var(--army-light);
}

.pricing-card-header h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.pricing-tagline {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--navy-light);
}

.pricing-card-featured .pricing-tagline {
    color: rgba(255,255,255,0.6);
}

.pricing-card-body {
    padding: var(--space-xl);
    flex: 1;
}

.price-display {
    margin-bottom: var(--space-lg);
}

.price-amount {
    display: block;
    font-family: var(--font-display);
    font-size: 3rem;
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.price-note {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    opacity: 0.7;
}

.price-features {
    list-style: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    margin-bottom: var(--space-lg);
}

.price-features li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--paper-dark);
}

.pricing-card-featured .price-features li {
    border-bottom-color: rgba(255,255,255,0.15);
}

.pricing-requirements {
    background: rgba(0,0,0,0.05);
    padding: var(--space-md);
    margin-top: var(--space-md);
}

.pricing-card-featured .pricing-requirements {
    background: rgba(255,255,255,0.1);
}

.requirements-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    color: var(--navy-light);
    margin-bottom: var(--space-xs);
}

.pricing-card-featured .requirements-label {
    color: rgba(255,255,255,0.5);
}

.pricing-requirements p {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--navy-light);
}

.pricing-card-featured .pricing-requirements p {
    color: rgba(255,255,255,0.7);
}

.pricing-card-footer {
    padding: var(--space-lg) var(--space-xl);
    border-top: 2px solid var(--navy);
}

.pricing-card-featured .pricing-card-footer {
    border-top-color: rgba(255,255,255,0.2);
}

.btn-pricing {
    display: block;
    background: var(--navy);
    color: var(--paper);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    padding: var(--space-md) var(--space-xl);
    text-align: center;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-pricing:hover {
    background: var(--army);
}

.btn-pricing-featured {
    background: var(--army);
    color: #fff;
}

.btn-pricing-featured:hover {
    background: var(--army-light);
}

.pricing-note {
    text-align: center;
    margin-top: var(--space-xl);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--navy-light);
}

/* ============================================
   Sources Section
   ============================================ */
.sources-section {
    padding: var(--space-3xl) 0;
    background: var(--paper-dark);
}

.sources-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

.source-item {
    padding: var(--space-md) var(--space-lg);
    background: var(--paper);
    border: 1px solid var(--navy);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

/* ============================================
   FAQ Section
   ============================================ */
.faq-section {
    padding: var(--space-3xl) 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

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

.faq-item summary {
    padding: var(--space-lg) 0;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    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;
    font-weight: 300;
    color: var(--army);
    transition: transform 0.2s;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    padding: 0 0 var(--space-lg);
    color: var(--navy-light);
    line-height: 1.7;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    padding: var(--space-3xl) 0;
    background: var(--navy);
    color: #fff;
    text-align: center;
}

.cta-section .section-label {
    color: var(--army-light);
}

.cta-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: var(--space-md);
}

.cta-desc {
    font-size: 1.1rem;
    opacity: 0.8;
    margin-bottom: var(--space-xl);
}

.waitlist-form {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    max-width: 500px;
    margin: 0 auto;
}

.waitlist-form input {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.95rem;
    border: none;
    background: #fff;
    color: var(--navy);
}

.waitlist-form input::placeholder {
    color: #999;
}

.waitlist-form .btn-primary {
    transform: none;
    background: var(--army);
}

.waitlist-form .btn-primary:hover {
    background: var(--army-light);
}

.waitlist-form .btn-primary::after {
    display: none;
}

.form-note {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    opacity: 0.5;
    margin-top: var(--space-md);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--space-xl) 0;
    background: var(--navy);
    color: #fff;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: var(--space-lg);
}

.footer-col {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
}

.footer-col-right {
    text-align: right;
}

.footer-label {
    display: block;
    color: rgba(255,255,255,0.4);
    margin-bottom: var(--space-sm);
}

.footer-col p {
    margin-bottom: var(--space-xs);
}

.footer-legal {
    text-align: center;
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .trust-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        flex-wrap: wrap;
        width: 100%;
    }

    .stat {
        flex: 1;
        min-width: 120px;
    }

    .demo-interface {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .nav-status {
        display: none;
    }

    .brand-logo {
        height: 32px;
    }

    .brand-name {
        font-size: 0.95rem;
    }

    /* Reduce section padding on mobile (60px instead of 100px) */
    .demo-section,
    .why-section,
    .modules-section,
    .trust-section,
    .pricing-section,
    .sources-section,
    .faq-section,
    .cta-section {
        padding: var(--space-2xl) 0;
    }

    /* Pricing section mobile - stack cards vertically */
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .pricing-card-featured {
        order: -1; /* Featured card appears first on mobile */
    }

    .pricing-badge {
        top: -10px;
        right: var(--space-md);
        font-size: 0.65rem;
    }

    .pricing-card-header h3 {
        font-size: 1.25rem;
    }

    .price-amount {
        font-size: 3rem;
    }

    .pricing-card-header,
    .pricing-card-body,
    .pricing-card-footer {
        padding: var(--space-lg);
    }

    /* Reduce container horizontal padding */
    .container {
        padding: 0 var(--space-md);
    }

    .hero {
        padding-top: 100px;
    }

    /* Reduce hero container padding */
    .hero > .container {
        padding: 0 var(--space-lg);
    }

    .hero-title {
        font-size: clamp(2.5rem, 12vw, 3.5rem);
    }

    .hero-text .hero-desc {
        font-size: 1rem;
        padding: var(--space-md);
    }

    .hero-stats {
        flex-direction: column;
        background: none;
        padding: 0;
        gap: var(--space-sm);
    }

    .stat {
        border: 1px solid var(--navy-light);
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: var(--space-md);
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .why-grid,
    .modules-grid {
        grid-template-columns: 1fr;
    }

    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }

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

    /* Demo section mobile adjustments */
    .demo-queries {
        padding: var(--space-md);
    }

    .response-body {
        padding: var(--space-md);
    }

    .custom-query-container {
        flex-direction: column;
    }

    .ask-btn {
        width: 100%;
    }

    .response-title {
        font-size: 1.25rem;
    }

    .response-next-actions .next-action-btn {
        flex: 1 1 100%;
    }

    /* Module cards mobile */
    .module-card {
        padding: var(--space-lg);
    }

    .module-card h3 {
        font-size: 1.1rem;
    }

    /* Why cards mobile */
    .why-card {
        padding: var(--space-lg);
    }

    .why-card h3 {
        font-size: 1.5rem;
    }

    /* Trust section mobile */
    .trust-desc {
        font-size: 1rem;
    }

    .citation-demo-body {
        padding: var(--space-md);
        font-size: 0.8rem;
    }

    /* Sources grid mobile */
    .sources-grid {
        gap: var(--space-sm);
    }

    .source-item {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.75rem;
    }

    .price-amount {
        font-size: 2.75rem;
    }

    /* FAQ mobile */
    .faq-item summary {
        padding: var(--space-md) 0;
        font-size: 0.85rem;
    }

    .waitlist-form {
        flex-direction: column;
    }

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

    .footer-col-right {
        text-align: left;
    }
}

/* Extra small screens */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .hero-text .hero-desc {
        font-size: 0.95rem;
        padding: var(--space-sm) var(--space-md);
    }

    .price-amount {
        font-size: 2.5rem;
    }

    .pricing-card-header,
    .pricing-card-body,
    .pricing-card-footer {
        padding: var(--space-md);
    }

    .pricing-card-header h3 {
        font-size: 1.1rem;
    }

    .price-features {
        font-size: 0.8rem;
    }

    .why-card,
    .module-card {
        padding: var(--space-md);
    }

    .why-card h3 {
        font-size: 1.25rem;
    }

    .module-card h3 {
        font-size: 1rem;
    }

    .response-answer {
        padding: var(--space-sm);
    }

    .btn-primary,
    .btn-secondary {
        padding: var(--space-sm) var(--space-lg);
        font-size: 0.8rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .cta-title {
        font-size: 2rem;
    }

    .cta-desc {
        font-size: 1rem;
    }
}

/* ============================================
   Citation Modal
   ============================================ */
.citation-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.citation-modal.active {
    opacity: 1;
    visibility: visible;
}

.citation-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 37, 64, 0.9);
    backdrop-filter: blur(4px);
}

.citation-modal-content {
    position: relative;
    background: var(--paper);
    max-width: 600px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    border: 3px solid var(--navy);
    box-shadow: 8px 8px 0 var(--army);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.citation-modal.active .citation-modal-content {
    transform: translateY(0);
}

.citation-modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 36px;
    height: 36px;
    background: var(--navy);
    color: #fff;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.citation-modal-close:hover {
    background: var(--army);
}

.citation-modal-header {
    padding: var(--space-xl);
    padding-right: 60px;
    border-bottom: 2px solid var(--navy);
    background: var(--cream);
}

.citation-modal-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    color: var(--army);
    margin-bottom: var(--space-sm);
}

.citation-modal-title {
    font-size: 1.25rem;
    line-height: 1.3;
    text-transform: none;
    letter-spacing: -0.01em;
}

.citation-modal-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--navy);
    border-bottom: 2px solid var(--navy);
}

.citation-meta-item {
    background: var(--paper);
    padding: var(--space-md);
    text-align: center;
}

.meta-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    color: var(--navy-light);
    margin-bottom: var(--space-xs);
}

.meta-value {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--navy);
}

.citation-modal-excerpt {
    padding: var(--space-xl);
}

.excerpt-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--army);
    margin-bottom: var(--space-md);
}

.citation-modal-excerpt blockquote {
    background: #fff;
    border-left: 4px solid var(--army);
    padding: var(--space-lg);
    margin: 0;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--navy);
    font-style: italic;
}

.citation-modal-footer {
    padding: var(--space-lg) var(--space-xl);
    background: var(--navy);
    text-align: center;
}

.citation-source-btn {
    display: inline-block;
    background: var(--army);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    padding: var(--space-md) var(--space-xl);
    text-decoration: none;
    transition: background 0.2s ease;
}

.citation-source-btn:hover {
    background: var(--army-light);
}

/* Typing cursor animation */
.typing-cursor::after {
    content: '|';
    animation: blink 0.7s infinite;
    color: var(--army);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Citation hover enhancement */
.citation {
    position: relative;
}

.citation::before {
    content: 'Click to view source';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    background: var(--navy);
    color: #fff;
    font-size: 0.7rem;
    padding: 4px 8px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 10;
}

.citation:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(-2px);
}

/* Citation modal responsive */
@media (max-width: 768px) {
    .citation-modal-content {
        width: 95%;
        max-height: 90vh;
    }

    .citation-modal-meta {
        grid-template-columns: 1fr;
    }

    .citation-meta-item {
        text-align: left;
        padding: var(--space-sm) var(--space-md);
    }

    .citation-modal-title {
        font-size: 1.1rem;
    }

    .citation-modal-excerpt blockquote {
        padding: var(--space-md);
        font-size: 0.95rem;
    }

    .citation::before {
        display: none;
    }
}