/* =========================================
   CUSTOMER HELPER - AI Support Platform
   Modern SaaS Landing Page Styles
   ========================================= */

/* CSS Variables / Design Tokens */
:root {
    /* Colors */
    --color-primary: #0F172A;
    --color-secondary: #0EA5E9;
    --color-accent: #06B6D4;
    
    /* Backgrounds */
    --bg-main: #F8FAFC;
    --bg-surface: #FFFFFF;
    --bg-glass: rgba(255, 255, 255, 0.8);
    --bg-dark: #0F172A;
    
    /* Text Colors */
    --text-heading: #1E293B;
    --text-body: #475569;
    --text-light: #94A3B8;
    --text-inverse: #FFFFFF;
    
    /* Status Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --space-xxl: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-float: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 20px rgba(14, 165, 233, 0.3);
    
    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    
    /* Container */
    --container-max: 1200px;
}

/* =========================================
   BASE STYLES
   ========================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-body);
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--text-heading);
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

img {
    max-width: 100%;
    height: auto;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* =========================================
   UTILITY CLASSES
   ========================================= */

.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =========================================
   HEADER / NAVBAR
   ========================================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-heading);
}

.logo-icon svg {
    display: block;
}

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

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-body);
    position: relative;
    padding: var(--space-xs) 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-secondary);
    transition: var(--transition-base);
}

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

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-heading);
    transition: var(--transition-base);
}

/* CTA Buttons */
.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

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

.cta-btn.primary:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.cta-btn.secondary {
    background: transparent;
    color: var(--text-heading);
    border: 2px solid var(--text-light);
}

.cta-btn.secondary:hover {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.cta-btn.large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* =========================================
   HERO SECTION
   ========================================= */

.hero-section {
    padding: calc(2px + var(--space-xxl)) 0 var(--space-xxl);
    background: linear-gradient(180deg, #F0F9FF 0%, var(--bg-main) 100%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-secondary);
    margin-bottom: var(--space-lg);
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: 50px;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    line-height: 1.1;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-body);
    margin-bottom: 30px;
    max-width: 540px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: 30px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

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

.stat-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-heading);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(0, 0, 0, 0.1);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-visual-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-float);
    padding: var(--space-lg);
    width: 100%;
    max-width: 420px;
}

.visual-chat-preview {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.chat-bubble {
    display: flex;
    gap: var(--space-sm);
    animation: fadeInUp 0.5s ease forwards;
}

.chat-bubble:nth-child(2) { animation-delay: 0.2s; }
.chat-bubble:nth-child(3) { animation-delay: 0.4s; }

.chat-bubble.user {
    flex-direction: row-reverse;
}

.chat-bubble .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    flex-shrink: 0;
}

.bot-avatar {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
}

.chat-bubble .message {
    background: #F1F5F9;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    max-width: 280px;
}

.chat-bubble.user .message {
    background: var(--color-secondary);
    color: white;
}

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

/* Floating Badges */
.floating-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-surface);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-card);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-heading);
    animation: float 3s ease-in-out infinite;
}

.floating-badge svg {
    color: var(--color-success);
}

.badge-1 {
    top: 20%;
    right: -20px;
}

.badge-2 {
    bottom: 20%;
    left: -30px;
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* =========================================
   SECTION COMMON STYLES
   ========================================= */

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-body);
    max-width: 600px;
    margin: 0 auto;
}

/* =========================================
   FEATURES SECTION
   ========================================= */

.features-section {
    padding: var(--space-xxl) 0;
    background: var(--bg-surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    position: relative;
    padding: var(--space-xl);
    background: var(--bg-main);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-float);
}

.feature-card.featured {
    background: linear-gradient(135deg, #F0F9FF, #E0F2FE);
    border: 2px solid rgba(14, 165, 233, 0.2);
}

.feature-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-secondary);
    color: white;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    color: white;
}

.feature-icon.multichannel { background: linear-gradient(135deg, #3B82F6, #1D4ED8); }
.feature-icon.intent { background: linear-gradient(135deg, #8B5CF6, #6D28D9); }
.feature-icon.escalation { background: linear-gradient(135deg, #F59E0B, #D97706); }
.feature-icon.ticketing { background: linear-gradient(135deg, #10B981, #059669); }
.feature-icon.voice { background: linear-gradient(135deg, #0EA5E9, #0284C7); }

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature-description {
    font-size: 0.9375rem;
    color: var(--text-body);
    margin-bottom: var(--space-md);
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tag {
    padding: var(--space-xs) var(--space-sm);
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-secondary);
}

/* =========================================
   DEMO SECTION
   ========================================= */

.demo-section {
    padding: var(--space-xxl) 0;
    background: linear-gradient(180deg, var(--bg-main) 0%, #F0F9FF 100%);
}

.demo-container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-xl);
    align-items: start;
}

.chat-window {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-float);
    overflow: hidden;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary), #1E3A5F);
    color: white;
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.bot-avatar-small {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
}

.chat-header-info {
    display: flex;
    flex-direction: column;
}

.chat-header-name {
    font-weight: 600;
    font-size: 0.9375rem;
}

.chat-header-status {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.75rem;
    opacity: 0.9;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
}

.chat-minimize-btn {
    padding: var(--space-sm);
    color: white;
    opacity: 0.8;
    transition: var(--transition-base);
}

.chat-minimize-btn:hover {
    opacity: 1;
}

.chat-messages {
    height: 400px;
    overflow-y: auto;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.chat-message {
    display: flex;
    gap: var(--space-sm);
    animation: fadeInUp 0.3s ease;
}

.chat-message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    flex-shrink: 0;
}

.chat-message.user .message-avatar {
    background: var(--text-light);
}

.message-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.message-content p {
    background: #F1F5F9;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    border-top-left-radius: var(--radius-xs);
    font-size: 0.9375rem;
    max-width: 360px;
}

.chat-message.user .message-content p {
    background: var(--color-secondary);
    color: white;
    border-radius: var(--radius-md);
    border-top-right-radius: var(--radius-xs);
}

.message-time {
    font-size: 0.6875rem;
    color: var(--text-light);
}

.chat-message.user .message-time {
    text-align: right;
}

.chat-input-container {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-main);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.chat-input {
    flex: 1;
    padding: var(--space-md);
    background: var(--bg-surface);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    transition: var(--transition-base);
}

.chat-input:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.chat-send-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-secondary);
    color: white;
    border-radius: 50%;
    transition: var(--transition-base);
}

.chat-send-btn:hover {
    background: var(--color-primary);
    transform: scale(1.05);
}

/* Demo Info */
.demo-info {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-card);
}

.demo-info h3 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

.test-prompts {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.prompt-btn {
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-main);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    text-align: left;
    transition: var(--transition-base);
}

.prompt-btn:hover {
    background: rgba(14, 165, 233, 0.1);
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

/* =========================================
   TELEGRAM SECTION
   ========================================= */

.telegram-section {
    padding: var(--space-xxl) 0;
    background: var(--bg-surface);
}

.telegram-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
    align-items: center;
}

.telegram-description {
    font-size: 1.125rem;
    color: var(--text-body);
    margin-bottom: var(--space-lg);
}

.telegram-benefits {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.telegram-benefits li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.9375rem;
}

.telegram-benefits svg {
    color: var(--color-success);
    flex-shrink: 0;
}

.telegram-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 1rem 2rem;
    background: #229ED9;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.telegram-btn:hover {
    background: #1A8AC7;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(34, 158, 217, 0.4);
}

.telegram-note {
    margin-top: var(--space-md);
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Phone Mockup */
.telegram-visual {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    background: var(--color-primary);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-float);
}

.phone-screen {
    background: white;
    border-radius: 30px;
    overflow: hidden;
}

.telegram-chat-preview {
    height: 480px;
    display: flex;
    flex-direction: column;
}

.tg-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: #229ED9;
    color: white;
}

.tg-back {
    padding: var(--space-xs);
}

.tg-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
}

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

.tg-name {
    font-weight: 600;
    font-size: 0.875rem;
}

.tg-status {
    font-size: 0.6875rem;
    opacity: 0.9;
}

.tg-messages {
    flex: 1;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    background: #E5DDD5;
}

.tg-msg {
    max-width: 85%;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
}

.tg-msg.bot {
    background: white;
    border-top-left-radius: 0;
    align-self: flex-start;
}

.tg-msg.user {
    background: #DCF8C6;
    border-top-right-radius: 0;
    align-self: flex-end;
}

/* =========================================
   PROFILE SECTION
   ========================================= */

.profile-section {
    padding: var(--space-xxl) 0;
    background: var(--bg-main);
}

.profile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.profile-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-card);
}

.profile-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.profile-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
}

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

.profile-info {
    flex: 1;
}

.profile-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.profile-id {
    font-size: 0.8125rem;
    color: var(--text-light);
}

.profile-status {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
}

.profile-status.active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.profile-status .status-indicator {
    width: 8px;
    height: 8px;
    background: currentColor;
    border-radius: 50%;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.stat-box {
    text-align: center;
    padding: var(--space-md);
    background: var(--bg-main);
    border-radius: var(--radius-md);
}

.stat-box .stat-value {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-heading);
}

.stat-box .stat-label {
    font-size: 0.75rem;
    color: var(--text-light);
}

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

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.detail-label {
    font-size: 0.875rem;
    color: var(--text-light);
}

.detail-value {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-heading);
}

.status-badge {
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
}

.status-badge.resolved {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

/* Activity Card */
.activity-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-card);
}

.activity-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.activity-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    flex-shrink: 0;
}

.activity-icon.resolved {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.activity-icon.chat {
    background: rgba(14, 165, 233, 0.1);
    color: var(--color-secondary);
}

.activity-icon.escalation {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

.activity-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.activity-text {
    font-size: 0.875rem;
    color: var(--text-heading);
}

.activity-time {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* =========================================
   ESCALATION SECTION
   ========================================= */

.escalation-section {
    padding: var(--space-xxl) 0;
    background: var(--bg-surface);
}

.escalation-flow {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 150px;
}

.step-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    margin-bottom: var(--space-md);
    color: white;
}

.step-icon.user-step { background: linear-gradient(135deg, #6366F1, #4F46E5); }
.step-icon.ai-step { background: linear-gradient(135deg, var(--color-secondary), var(--color-accent)); }
.step-icon.detection-step { background: linear-gradient(135deg, #8B5CF6, #7C3AED); }
.step-icon.resolution-step { background: linear-gradient(135deg, #10B981, #059669); }
.step-icon.escalation-step { background: linear-gradient(135deg, #F59E0B, #D97706); }

.step-title {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.step-desc {
    font-size: 0.8125rem;
    color: var(--text-light);
}

.flow-arrow {
    display: flex;
    align-items: center;
    padding-top: 24px;
    color: var(--text-light);
}

.flow-decision {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.decision-branch {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-md);
    background: var(--bg-main);
    border-radius: var(--radius-md);
    max-width: 160px;
}

.decision-branch .step-icon {
    width: 56px;
    height: 56px;
}

.decision-or {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* =========================================
   CONTACT SECTION
   ========================================= */

.contact-section {
    padding: var(--space-xxl) 0;
    background: linear-gradient(180deg, var(--bg-main) 0%, #F0F9FF 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
    align-items: start;
}

.contact-info .section-title {
    text-align: left;
}

.contact-description {
    font-size: 1.125rem;
    color: var(--text-body);
    margin-bottom: var(--space-xl);
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.9375rem;
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 50%;
    color: var(--color-secondary);
}

/* Contact Form */
.contact-form {
    background: var(--bg-surface);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-heading);
    margin-bottom: var(--space-sm);
}

.form-input {
    width: 100%;
    padding: var(--space-md);
    background: var(--bg-main);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    transition: var(--transition-base);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

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

.submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-md) var(--space-xl);
    background: var(--color-primary);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.submit-btn:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
}

/* =========================================
   FOOTER
   ========================================= */

.footer {
    background: var(--bg-dark);
    color: var(--text-inverse);
    padding: var(--space-xxl) 0 var(--space-lg);
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-xxl);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-md);
}

.footer-description {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.7;
    max-width: 280px;
}

.footer-links-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.footer-links-title {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: white;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--text-light);
    transition: var(--transition-base);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.hackathon-badge {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    background: rgba(14, 165, 233, 0.2);
    border: 1px solid rgba(14, 165, 233, 0.4);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-secondary);
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition-base);
}

.social-link:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
}

.footer-copyright {
    font-size: 0.8125rem;
    color: var(--text-light);
}

/* =========================================
   FLOATING CHAT BUTTON
   ========================================= */

.floating-chat-btn {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-secondary);
    color: white;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-float);
    font-weight: 600;
    z-index: 999;
    transition: var(--transition-base);
}

.floating-chat-btn:hover {
    background: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

/* =========================================
   RESPONSIVE STYLES
   ========================================= */

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 0;
        margin-bottom: var(--space-xl);
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .floating-badge {
        display: none;
    }
    
    .telegram-content {
        grid-template-columns: 1fr;
    }
    
    .telegram-visual {
        order: -1;
    }
    
    .profile-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-surface);
        flex-direction: column;
        padding: var(--space-lg);
        box-shadow: var(--shadow-card);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-container .cta-btn {
        display: none;
    }
    
    .demo-container {
        grid-template-columns: 1fr;
    }
    
    .demo-info {
        order: -1;
    }
    
    .chat-messages {
        height: 320px;
    }
    
    .escalation-flow {
        flex-direction: column;
        align-items: center;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        padding: var(--space-sm) 0;
    }
    
    .flow-decision {
        flex-direction: row;
        gap: var(--space-lg);
    }
    
    .footer-links-group {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 2.5rem;
        --space-xxl: 4rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .stat-divider {
        width: 60px;
        height: 1px;
    }
    
    .flow-decision {
        flex-direction: column;
    }
    
    .footer-links-group {
        grid-template-columns: 1fr;
    }
    
    .phone-mockup {
        width: 240px;
    }
}


.nav-links a.active {
    color: var(--color-secondary);
    font-weight: 600;
}

.chat-form {
    display: flex;
    gap: var(--space-sm);
    width: 100%;
}

.chat-input-container {
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-main);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  display: flex;                    /* visible by default */
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.modal-content {
  background: white;
  padding: 2.5rem 2rem;
  border-radius: 12px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 35px rgba(0,0,0,0.3);
  position: relative;
}

.modal-content h2 {
  margin-bottom: 1rem;
  color: var(--text-heading);
}

.modal-content p {
  margin-bottom: 2rem;
  color: var(--text-body);
}

.g_id_signin {
  margin: 0 auto 1.5rem;
}