/* ========================================
   Recobro.ai — Premium Landing Page
   Dark theme, Linear/Stripe inspired
   ======================================== */

:root {
    /* Colors - Light Theme (Clean & Professional) */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-elevated: #ffffff;
    --bg-hover: #f3f4f6;
    
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-tertiary: #6b7280;
    --text-muted: #9ca3af;
    
    --border-default: #e5e7eb;
    --border-subtle: #f3f4f6;
    --border-highlight: #d1d5db;
    
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    
    --success: #10b981;
    --success-muted: rgba(16, 185, 129, 0.1);
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
    
    /* Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    
    /* Transitions */
    --transition-fast: 100ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

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

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

::selection {
    background: var(--accent-primary);
    color: white;
}

/* Light theme specific overrides */
.btn-primary {
    background: var(--accent-gradient);
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

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

ul {
    list-style: none;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--text-primary);
    color: white;
}

.btn-primary:hover {
    background: #1f2937;
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-default);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--border-highlight);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

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

.btn-lg {
    padding: 14px 24px;
    font-size: 15px;
    border-radius: var(--radius-lg);
}

.btn-block {
    width: 100%;
}

/* Section Intro */
.section-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-12);
}

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
    padding: 5px 10px;
    border-radius: 100px;
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.section-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.nav.scrolled {
    border-bottom-color: var(--border-default);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-mark {
    width: 32px;
    height: 32px;
}

.logo-mark svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.nav-link-muted {
    color: var(--text-tertiary) !important;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: all var(--transition-base);
}

/* ========================================
   Hero
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 160px 0 100px;
    overflow: hidden;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-gradient {
    display: none;
}

.hero-grid {
    display: none;
}

.hero-glow {
    display: none;
}

.hero .container {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

.hero-content {
    max-width: 480px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 8px 14px 8px 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.hero-badge:hover {
    border-color: var(--border-highlight);
    color: var(--text-primary);
}

.badge-pulse {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.9); }
}

.badge-text {
    flex: 1;
}

.hero-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-5);
}

.hero-subtitle {
    font-size: 17px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

/* Hero Bullets */
.hero-bullets {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.hero-bullets li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 14px;
    color: var(--text-secondary);
}

.hero-bullets svg {
    color: var(--success);
    flex-shrink: 0;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Demo Window */
.hero-visual {
    position: relative;
}

.demo-window {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.demo-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-default);
}

.demo-dots {
    display: flex;
    gap: 6px;
}

.demo-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-default);
}

.demo-dots span:first-child { background: #ff5f57; }
.demo-dots span:nth-child(2) { background: #febc2e; }
.demo-dots span:last-child { background: #28c840; }

.demo-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-tertiary);
}

.demo-indicator {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.demo-time {
    font-size: 12px;
    font-family: 'SF Mono', monospace;
    color: var(--text-muted);
}

.demo-content {
    display: grid;
    grid-template-columns: 240px 1fr;
    height: 440px;
}

/* Sidebar */
.demo-sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-default);
    overflow: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--border-subtle);
}

.sidebar-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-badge {
    font-size: 11px;
    font-weight: 600;
    background: var(--accent-primary);
    color: white;
    padding: 2px 8px;
    border-radius: 100px;
}

.sidebar-list {
    padding: var(--space-2);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.sidebar-item:hover {
    background: var(--bg-hover);
}

.sidebar-item.active {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
}

.item-avatar {
    width: 32px;
    height: 32px;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    color: white;
    flex-shrink: 0;
}

.item-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.item-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.item-preview {
    font-size: 12px;
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.item-badge {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
}

.item-badge.success {
    background: var(--success-muted);
    color: var(--success);
}

.item-time {
    font-size: 11px;
    color: var(--text-muted);
}

/* Chat */
.demo-chat {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.chat-messages {
    flex: 1;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    overflow-y: auto;
}

.message {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    max-width: 85%;
}

.message.user {
    align-self: flex-end;
}

.message-bubble {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: 14px;
    line-height: 1.5;
}

.message.bot .message-bubble {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom-left-radius: var(--radius-sm);
}

.message.user .message-bubble {
    background: var(--accent-primary);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

.message-bubble p {
    color: inherit;
}

.message-bubble strong {
    font-weight: 600;
}

.message-meta {
    font-size: 11px;
    color: var(--text-muted);
}

.message.user .message-meta {
    text-align: right;
}

/* New Message Structure for Dynamic Chat */
.message {
    display: flex;
    gap: var(--space-2);
    max-width: 85%;
}

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 11px;
    font-weight: 600;
}

.message.bot .message-avatar {
    background: var(--accent-gradient);
    color: white;
}

.message.user .message-avatar {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.message-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.bubble-text {
    color: inherit;
}

/* Typing Indicator */
.typing-bubble {
    min-height: 36px;
    display: flex;
    align-items: center;
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 0;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--text-tertiary);
    border-radius: 50%;
    animation: typingBounce 1.2s infinite ease-in-out;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.15s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes typingBounce {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

/* Agreement Card */
.agreement-card {
    background: var(--success-muted);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-left: 36px;
    margin-top: var(--space-2);
}

.agreement-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--success);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.agreement-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.agreement-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

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

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

/* Message Card */
.message-card {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
}

.message-card.success {
    background: var(--success-muted);
}

.card-icon {
    width: 32px;
    height: 32px;
    background: var(--success);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.card-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.card-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--success);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.card-details {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

/* Chat Footer */
.chat-footer {
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--border-default);
    background: var(--bg-secondary);
}

.chat-input {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    margin-bottom: var(--space-3);
}

.input-placeholder {
    font-size: 13px;
    color: var(--text-muted);
}

.chat-stats {
    display: flex;
    gap: var(--space-6);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.chat-stats .stat-label {
    font-size: 11px;
    color: var(--text-muted);
}

.chat-stats .stat-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.chat-stats .stat-value.success {
    color: var(--success);
}

/* ========================================
   Logos
   ======================================== */
/* ========================================
   Problem Section
   ======================================== */
.problem {
    padding: var(--space-16) 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-default);
    border-bottom: 1px solid var(--border-default);
}

.problem-content {
    max-width: 960px;
    margin: 0 auto;
}

.problem-title {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-10);
    color: var(--text-primary);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
    margin-bottom: var(--space-10);
}

.problem-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.problem-icon {
    width: 44px;
    height: 44px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--error);
    margin-bottom: var(--space-3);
}

.problem-icon svg {
    width: 22px;
    height: 22px;
}

.problem-card h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: 1.4;
}

.problem-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.problem-cta {
    text-align: center;
    padding: var(--space-6);
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
}

.problem-cta p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

.problem-cta strong {
    color: var(--success);
    font-weight: 600;
}

/* ========================================
   How it Works
   ======================================== */
.how-it-works {
    padding: var(--space-20) 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.step-card {
    position: relative;
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-6) var(--space-5);
    padding-top: var(--space-8);
}

.step-number {
    position: absolute;
    top: -14px;
    left: var(--space-5);
    width: 28px;
    height: 28px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: white;
}

.step-content {
    padding-top: 0;
}

.step-duration {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
    padding: 3px 8px;
    border-radius: 100px;
    margin-bottom: var(--space-3);
}

.step-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.step-card > .step-content > p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.step-details {
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-default);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.step-details li {
    font-size: 12px;
    color: var(--text-tertiary);
    padding-left: var(--space-4);
    position: relative;
}

.step-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 5px;
    height: 5px;
    background: var(--success);
    border-radius: 50%;
}

/* ========================================
   Stats
   ======================================== */
.stats {
    padding: var(--space-20) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    text-align: center;
    transition: all var(--transition-base);
}

.stat-card:hover {
    border-color: var(--border-highlight);
    box-shadow: var(--shadow-md);
}

.stat-value {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
    margin-bottom: var(--space-2);
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-suffix {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-tertiary);
}

.stat-card .stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.stat-bar {
    height: 4px;
    background: var(--bg-hover);
    border-radius: 2px;
    overflow: hidden;
}

.stat-bar span {
    display: block;
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 2px;
}

/* ========================================
   Product
   ======================================== */
.product {
    padding: var(--space-24) 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.product-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.product-card:hover {
    border-color: var(--border-highlight);
    box-shadow: var(--shadow-lg);
}

.product-card.featured {
    grid-column: span 1;
    grid-row: span 2;
    background: var(--bg-primary);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.product-card .card-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-5);
    color: var(--text-primary);
}

.product-card.featured .card-icon {
    background: var(--accent-gradient);
    color: white;
}

.product-card .card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.product-card .card-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.product-card .card-features {
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border-default);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.product-card .card-features li {
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: var(--space-5);
    position: relative;
}

.product-card .card-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--accent-primary);
    border-radius: 50%;
}

/* ========================================
   Case Study
   ======================================== */
.case-study {
    padding: var(--space-20) 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-default);
    border-bottom: 1px solid var(--border-default);
}

.case-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-10);
    align-items: start;
    margin-bottom: var(--space-16);
}

.case-metrics {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.metric-row {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
}

.metric-row.triple {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    padding: var(--space-5);
}

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

.metric-item.compact {
    text-align: left;
    padding: var(--space-4);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
}

.metric-item .metric-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-4);
}

.metric-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
}

.metric-before, .metric-after {
    text-align: center;
}

.metric-before .metric-value,
.metric-after .metric-value {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-tertiary);
    line-height: 1;
}

.metric-after .metric-value.highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-before .metric-unit,
.metric-after .metric-unit {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: var(--space-1);
}

.metric-arrow {
    color: var(--text-muted);
}

.metric-change {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.metric-change .from {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-tertiary);
}

.metric-change .arrow {
    color: var(--text-muted);
}

.metric-change .to {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.metric-change .to.highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 100px;
}

.metric-badge.positive {
    background: var(--success-muted);
    color: var(--success);
}

/* Quote */
.case-quote {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-sm);
}

.quote-content {
    margin-bottom: var(--space-6);
}

.quote-mark {
    color: var(--accent-primary);
    opacity: 0.3;
    margin-bottom: var(--space-4);
}

.case-quote blockquote {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.7;
    color: var(--text-primary);
}

.quote-author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-default);
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
}

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

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.author-role {
    font-size: 13px;
    color: var(--text-secondary);
}

.author-company {
    font-size: 13px;
    color: var(--text-muted);
}

/* Timeline */
.case-timeline {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-sm);
}

.timeline-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-8);
    text-align: center;
}

.timeline-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.timeline-item {
    position: relative;
    padding-left: var(--space-12);
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-marker span {
    font-size: 14px;
    font-weight: 700;
    color: white;
}

.timeline-content {
    padding-top: var(--space-1);
}

.timeline-period {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--accent-primary);
    margin-bottom: var(--space-2);
}

.timeline-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   Channels
   ======================================== */
.channels {
    padding: var(--space-20) 0;
}

.channels-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.channel-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition: all var(--transition-base);
}

.channel-card:hover {
    border-color: var(--border-highlight);
}

.channel-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.channel-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.channel-icon svg {
    width: 20px;
    height: 20px;
}

.channel-icon.whatsapp {
    background: rgba(37, 211, 102, 0.15);
    color: #25D366;
}

.channel-icon.email {
    background: rgba(234, 67, 53, 0.15);
    color: #EA4335;
}

.channel-icon.voice {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-primary);
}

.channel-header h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.channel-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.channel-metrics {
    display: flex;
    gap: var(--space-5);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-default);
}

.channel-metric {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.channel-metric .metric-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.channel-metric .metric-label {
    font-size: 11px;
    color: var(--text-muted);
}

/* ========================================
   FAQ
   ======================================== */
.faq {
    padding: var(--space-20) 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-default);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--border-highlight);
}

.faq-question {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: 1.4;
}

.faq-question svg {
    flex-shrink: 0;
    color: var(--accent-primary);
    margin-top: 1px;
    width: 16px;
    height: 16px;
}

.faq-answer {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    padding-left: 24px;
}

/* ========================================
   CTA
   ======================================== */
.cta {
    position: relative;
    padding: var(--space-20) 0;
    overflow: hidden;
}

.cta-bg {
    display: none;
}

.cta-gradient {
    display: none;
}

.cta-content {
    position: relative;
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.cta-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    line-height: 1.6;
}

.cta-form {
    background: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    padding: 12px 14px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--bg-primary);
}

.cta-trust {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-top: var(--space-5);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 12px;
    color: var(--text-tertiary);
}

.trust-item svg {
    width: 14px;
    height: 14px;
}

.form-note {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: var(--space-3);
}

.form-row.single {
    grid-template-columns: 1fr;
}

.cta-urgency {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-6);
    padding: var(--space-3);
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-primary);
}

.cta-urgency svg {
    width: 14px;
    height: 14px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-default);
    padding: var(--space-10) 0;
}

.footer-simple {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
    text-align: center;
}

.footer-brand .nav-logo {
    justify-content: center;
}

.footer-links-inline {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links-inline a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-copy {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }
    
    .hero-content {
        max-width: 560px;
        margin: 0 auto;
        text-align: center;
    }
    
    .hero-bullets {
        align-items: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        max-width: 560px;
        margin: 0 auto;
    }
    
    .problem-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto var(--space-10);
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        max-width: 400px;
        margin: 0 auto;
    }
    
    .step-card {
        margin-top: var(--space-3);
    }
    
    .case-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .channels-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-actions {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-title {
        font-size: clamp(28px, 6vw, 42px);
    }
    
    .demo-content {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .demo-sidebar {
        display: none;
    }
    
    .chat-messages {
        max-height: 360px;
    }
    
    .metric-row.triple {
        grid-template-columns: 1fr;
    }
    
    .cta-trust {
        flex-direction: column;
        align-items: center;
        gap: var(--space-3);
    }
    
    .footer-links-inline {
        flex-direction: column;
        gap: var(--space-3);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .metric-before .metric-value,
    .metric-after .metric-value {
        font-size: 36px;
    }
    
    .cta-urgency {
        flex-direction: column;
        text-align: center;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}