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

:root {
    /* Light Theme - Apple Premium */
    --primary-accent: #0071e3;
    --primary-accent-dark: #005bb5;
    --primary-accent-light: #e8f2ff;
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f7;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --border-color: #d2d2d7;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --border-radius: 16px;
    --gold-accent: #86868b;
    --warm-gray: #86868b;
}

[data-theme="dark"] {
    /* Dark Theme - Apple Premium */
    --primary-accent: #2997ff;
    --primary-accent-dark: #0071e3;
    --primary-accent-light: #1a1a2e;
    --bg-primary: #000000;
    --bg-secondary: #1c1c1e;
    --text-primary: #f5f5f7;
    --text-secondary: #86868b;
    --border-color: #38383a;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    --gold-accent: #a1a1a6;
    --warm-gray: #86868b;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    overflow-wrap: break-word;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Prevent horizontal scroll */
html, body {
    max-width: 100%;
    overflow-x: hidden;
}

/* Auth Modal */
.auth-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.auth-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: 40px;
    max-width: 480px;
    width: 90%;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.auth-modal.active .auth-container {
    transform: translateY(0);
}

.auth-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 24px;
    position: relative;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 16px;
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px var(--primary-accent-light);
}

.suggestions-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    margin-top: 4px;
    max-height: 200px;
    overflow-y: auto;
    box-shadow: var(--shadow);
    z-index: 100;
    display: none;
    border: 1px solid var(--border-color);
}

.suggestions-list.active {
    display: block;
}

.suggestion-item {
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.2s ease;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover {
    background: var(--primary-accent-light);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 24px;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-accent);
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-custom.checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--primary-accent);
    font-size: 14px;
    font-weight: bold;
}

.checkbox-label {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.btn-primary {
    width: 100%;
    padding: 16px;
    background: var(--primary-accent);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background: var(--primary-accent-dark);
}

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

/* Main Content */
.main-content {
    display: none;
    padding-bottom: 100px;
}

.main-content.active {
    display: block;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Spacer for fixed header */
.main-content {
    padding-top: 60px;
}

.theme-toggle {
    background: transparent;
    border: none;
    width: 40px;
    height: 40px;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    opacity: 0.7;
}

.theme-icon {
    width: 20px;
    height: 20px;
    fill: var(--text-primary);
}

.theme-icon.sun {
    display: none;
}

[data-theme="dark"] .theme-icon.sun {
    display: block;
}

[data-theme="dark"] .theme-icon.moon {
    display: none;
}

/* Hero Section */
.hero {
    padding: 60px 20px 40px;
    text-align: center;
}

.digital-day-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-accent-light);
    border: 1px solid var(--primary-accent);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-accent);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.event-title-gradient {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
    background: linear-gradient(90deg, var(--primary-accent), var(--primary-accent-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: var(--text-primary);
    transition: background 0.3s ease;
}

[data-theme="dark"] .event-title-gradient {
    background: linear-gradient(90deg, #2997ff, #0071e3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.event-location-box {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
    transition: all 0.3s ease;
}

.event-location-box svg {
    flex-shrink: 0;
}

.location-icon {
    width: 24px;
    height: 24px;
    fill: var(--primary-accent);
}

.event-description {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 30px;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-chat {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--primary-accent);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-chat:hover {
    background: var(--primary-accent-dark);
}

.chat-btn-icon {
    width: 20px;
    height: 20px;
    fill: white;
}

/* Sections with scroll reveal animation */
.section {
    padding: 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Scroll reveal animation for sections - slower and smoother */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    text-align: left;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    text-align: left;
}

/* Program Schedule - removed static animation, using scroll reveal instead */
.schedule-item {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 12px;
    margin-bottom: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.schedule-item:hover {
    transform: translateY(-2px);
}

.schedule-time-box {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 11px;
    margin-bottom: 8px;
}

.time-icon {
    width: 14px;
    height: 14px;
    fill: var(--text-secondary);
}

.schedule-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.schedule-speaker-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.speaker-icon {
    width: 16px;
    height: 16px;
    fill: var(--text-secondary);
    flex-shrink: 0;
    margin-top: 2px;
}

.schedule-speaker-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.schedule-speaker-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 13px;
}

.schedule-speaker-role {
    color: var(--text-secondary);
    font-size: 11px;
}

/* Industry Cards - Centered and 2 per row on mobile */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    max-width: 800px;
    margin: 0 auto;
}

.industry-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    position: relative;
    min-height: 110px;
    justify-content: space-between;
}

.industry-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.industry-content-wrapper {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.industry-info-left {
    text-align: left;
    width: 100%;
}

.btn-download-corner {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.btn-download-corner .download-icon {
    width: 18px;
    height: 18px;
    fill: var(--text-secondary);
}

.btn-download-corner:hover .download-icon {
    fill: var(--primary-accent);
}

/* Top Navigation */
.top-nav {
    display: flex;
    gap: 8px;
    align-items: center;
}

.top-nav .nav-item {
    padding: 8px 14px;
    border-radius: 20px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.top-nav .nav-item:hover {
    background: var(--primary-accent);
    color: white;
}

.industry-name {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
    text-align: left;
}

.industry-icon {
    width: 28px;
    height: 28px;
    fill: var(--primary-accent);
    flex-shrink: 0;
    margin-bottom: 6px;
}

.industry-description {
    color: var(--text-secondary);
    line-height: 1.4;
    font-size: 10px;
    text-align: left;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 10px 20px;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s ease;
}

.download-icon {
    width: 18px;
    height: 18px;
    fill: var(--text-secondary);
}

.btn-download:hover {
    color: var(--primary-accent);
}

.btn-download:hover .download-icon {
    fill: var(--primary-accent);
}

/* Privacy link styling */
.privacy-link {
    text-decoration: underline;
    cursor: pointer;
}

.privacy-link:hover {
    color: var(--primary-accent);
}

/* Speakers */
.speaker-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 16px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.speaker-name {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

/* Presentations Grid - 2 per row on mobile, centered */
.presentations-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    max-width: 600px;
    margin: 0 auto;
}

.presentation-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 14px 10px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.presentation-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.presentation-speaker-icon {
    width: 32px;
    height: 32px;
    fill: var(--text-secondary);
    margin-bottom: 8px;
}

.presentation-name {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    text-align: center;
}

.presentation-status {
    font-size: 11px;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 4px;
}

.btn-download-presentation {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 11px;
    transition: all 0.2s ease;
}

.btn-download-presentation:hover {
    color: var(--primary-accent);
}

.btn-download-presentation:hover .download-icon {
    fill: var(--primary-accent);
}

/* Chatbot CTA Section */
.chatbot-cta-section {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    margin: 40px auto;
    max-width: 500px;
    border: 1px solid var(--border-color);
}

.chatbot-cta-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.chatbot-cta-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.btn-chatbot-start {
    padding: 12px 28px;
    background: var(--primary-accent);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-chatbot-start:hover {
    background: var(--primary-accent-dark);
}

/* Navigation */
.bottom-nav {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-primary);
    border-radius: 50px;
    padding: 8px 16px;
    display: flex;
    gap: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    z-index: 100;
}

.nav-item {
    padding: 8px 14px;
    border-radius: 20px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-item:hover,
.nav-item.active {
    background: var(--primary-accent);
    color: white;
}

.nav-icon {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Chat Button */
.chat-button-fixed {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary-accent);
    border: none;
    box-shadow: var(--shadow);
    cursor: pointer;
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.chat-button-fixed:hover {
    transform: scale(1.05);
    background: var(--primary-accent-dark);
}

.chat-icon {
    width: 24px;
    height: 24px;
    fill: white;
}

/* Scroll to Top */
.scroll-top {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    cursor: pointer;
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--primary-accent);
    border-color: var(--primary-accent);
}

.scroll-top:hover svg {
    fill: white;
}

.scroll-top svg {
    width: 24px;
    height: 24px;
    fill: var(--text-primary);
    transition: fill 0.2s ease;
}

/* Remove bouncing arrow - deleted as per requirements */
.scroll-bottom-arrow {
    display: none;
}

/* Bottom Navigation - Removed as per requirements */
.bottom-nav {
    display: none;
}

/* Chat Modal */
.chat-modal {
    position: fixed;
    bottom: 0;
    right: 0;
    width: 100%;
    max-width: 400px;
    height: 600px;
    max-height: 80vh;
    background: var(--bg-primary);
    border-radius: 16px 16px 0 0;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    z-index: 200;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

@media (min-width: 450px) {
    .chat-modal {
        border-radius: 16px;
        bottom: 100px;
        right: 20px;
        transform: scale(0.95);
        opacity: 0;
        visibility: hidden;
    }

    .chat-modal.active {
        transform: scale(1);
        opacity: 1;
        visibility: visible;
    }
}

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

.chat-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.chat-close {
    background: transparent;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.message {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: 18px;
    line-height: 1.5;
    animation: messageSlide 0.3s ease;
    font-size: 13px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    background: linear-gradient(135deg, var(--primary-accent) 0%, var(--primary-accent-dark) 100%);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.message.bot {
    background: var(--bg-secondary);
    color: var(--text-primary);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border-color);
}

.message.predefined {
    background: var(--primary-accent-light);
    color: var(--primary-accent);
    border: 1px solid var(--primary-accent);
    align-self: flex-start;
    cursor: pointer;
    transition: all 0.2s ease;
}

.message.predefined:hover {
    background: var(--primary-accent);
    color: white;
}

/* Beautiful Chat Blocks */
.message.info-block {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px;
    margin: 4px 0;
    width: 100%;
    max-width: 95%;
}

.message.info-block strong {
    color: var(--primary-accent);
    display: block;
    margin-bottom: 4px;
    font-size: 13px;
}

.message.info-block p {
    margin: 3px 0;
    color: var(--text-secondary);
    font-size: 12px;
}

/* Schedule Chat Blocks */
.schedule-chat-block {
    width: 100%;
    max-width: 100%;
    margin-bottom: 8px;
    padding: 10px;
}

.schedule-chat-time-box {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 11px;
    margin-bottom: 8px;
}

.time-icon {
    width: 14px;
    height: 14px;
    fill: var(--text-secondary);
}

.schedule-chat-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.schedule-chat-speaker-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 6px;
}

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

.schedule-chat-speaker-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.schedule-chat-speaker-role {
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Speaker Chat Blocks */
.speaker-chat-block {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    padding: 12px 10px;
}

.speaker-chat-icon-wrapper {
    margin-bottom: 6px;
}

.speaker-chat-icon {
    width: 28px;
    height: 28px;
    fill: var(--text-secondary);
}

.speaker-chat-name {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
    text-align: left;
}

.speaker-chat-role {
    font-size: 11px;
    color: var(--text-secondary);
    text-align: left;
}

/* CSM Chat Card */
.csm-chat-card {
    width: 100%;
    max-width: 100%;
}

.csm-chat-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-accent);
    margin-bottom: 12px;
    text-align: left;
}

.csm-chat-row {
    display: flex;
    justify-content: flex-start;
    gap: 8px;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-color);
}

.csm-chat-row:last-child {
    border-bottom: none;
}

.csm-chat-label {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 80px;
}

.csm-chat-value {
    font-size: 11px;
    color: var(--text-primary);
    font-weight: 600;
    text-align: left;
}

/* Industry Download Block */
.industry-download-block,
.speaker-download-block {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 12px;
}

.industry-download-title,
.speaker-download-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
}

.btn-download-chat {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    text-decoration: none;
    font-weight: 600;
    font-size: 11px;
    transition: all 0.2s ease;
}

.btn-download-chat:hover {
    color: var(--primary-accent);
    border-color: var(--primary-accent);
}

.btn-download-chat .download-icon {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.chat-scenarios {
    padding: 8px 12px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.scenario-btn {
    padding: 6px 12px;
    background: var(--primary-accent-light);
    color: var(--primary-accent);
    border: 1px solid var(--primary-accent);
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.scenario-btn:hover {
    background: var(--primary-accent);
    color: white;
}

.chat-input-area {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 8px;
}

.chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s ease;
}

.chat-input:focus {
    outline: none;
    border-color: var(--primary-accent);
}

.btn-send {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-accent);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

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

.btn-send svg {
    width: 20px;
    height: 20px;
    fill: white;
}

.back-button {
    padding: 10px 18px;
    background: var(--primary-accent-light);
    color: var(--primary-accent);
    border: 1px solid var(--primary-accent);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    margin: 12px 0;
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.back-button:hover {
    background: var(--primary-accent);
    color: white;
}

.back-button::before {
    content: '←';
    font-size: 16px;
}

/* Loading */
.loading {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .event-title {
        font-size: 24px;
    }

    .hero {
        padding: 40px 15px 30px;
    }

    .section {
        padding: 30px 15px;
    }

    .bottom-nav {
        bottom: 15px;
        padding: 6px 12px;
        gap: 8px;
    }

    .nav-item {
        padding: 6px 10px;
        font-size: 12px;
    }

    .chat-button-fixed {
        bottom: 90px;
        right: 15px;
        width: 52px;
        height: 52px;
    }

    .scroll-top {
        bottom: 15px;
        left: 15px;
        width: 44px;
        height: 44px;
    }
}