:root {
    --primary-color: #1D4ED8;
    --primary-hover: #1E40AF;
    --secondary-color: #06B6D4;
    --text-primary: #0B1220;
    --text-secondary: #475569;
    --text-light: #64748B;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F2F6FF;
    --bg-dark: #0A0E27;
    --border-color: #D9E2F2;
    --gradient-start: #06B6D4;
    --gradient-end: #1D4ED8;
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --overlay-bg: rgba(0, 0, 0, 0.5);
    --shadow-sm: 0 1px 2px 0 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);
}

[data-theme="dark"] {
    --text-primary: #E5E7EB;
    --text-secondary: #CBD5E1;
    --text-light: #94A3B8;
    --bg-primary: #0B1220;
    --bg-secondary: #0F1B2E;
    --border-color: #1F2A44;
    --navbar-bg: rgba(11, 18, 32, 0.92);
    --overlay-bg: rgba(0, 0, 0, 0.65);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.35);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.55);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.65);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--navbar-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
}

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

.nav-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 8px 12px;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 13px;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: var(--bg-secondary);
}

.search-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--text-secondary);
    transition: color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-toggle:hover {
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-large {
    padding: 14px 32px;
    font-size: 16px;
}

/* Hero Section */
.hero {
    padding: 140px 0 100px;
    background: linear-gradient(180deg, #FFFFFF 0%, #F8F9FA 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.10) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 0.8s ease;
    max-width: 800px;
    width: 100%;
    text-align: center;
    margin: 0 auto;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}

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

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

/* Natural Language Query Search Bar */
.nl-query-container {
    margin-bottom: 32px;
    position: relative;
}

.nl-query-wrapper {
    max-width: 100%;
}

.nl-query-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 4px;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s;
    margin-bottom: 16px;
}

.nl-query-input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12), var(--shadow-xl);
}

.nl-query-icon {
    position: absolute;
    left: 20px;
    color: var(--text-light);
    pointer-events: none;
    z-index: 1;
}

.nl-query-input {
    flex: 1;
    padding: 18px 60px 18px 56px;
    font-size: 18px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-family: inherit;
    outline: none;
}

.nl-query-input::placeholder {
    color: var(--text-light);
}

.nl-query-submit {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    border: none;
    padding: 14px 20px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    margin-right: 4px;
}

.nl-query-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nl-query-submit:active {
    transform: translateY(0);
}

.nl-query-examples {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 0 4px;
}

.nl-query-examples-label {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

.nl-query-example {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    white-space: nowrap;
}

.nl-query-example:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Natural Language Query Results */
.nl-query-results {
    margin-top: 24px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: slideDown 0.3s ease;
}

.nl-query-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.nl-query-results-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.nl-query-close-results {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all 0.2s;
}

.nl-query-close-results:hover {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.nl-query-results-content {
    padding: 24px;
}

.nl-query-loading {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.nl-query-loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.nl-query-insight {
    margin-bottom: 24px;
}

.nl-query-insight:last-child {
    margin-bottom: 0;
}

.nl-query-insight-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nl-query-insight-title svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.nl-query-insight-content {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.nl-query-insight-data {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 16px;
    margin-top: 12px;
}

.nl-query-insight-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.nl-query-insight-table th {
    text-align: left;
    padding: 8px 12px;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

.nl-query-insight-table td {
    padding: 8px 12px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.nl-query-insight-table tr:last-child td {
    border-bottom: none;
}

.nl-query-insight-chart {
    margin-top: 16px;
    padding: 16px;
    background: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 14px;
}

.nl-query-error {
    padding: 24px;
    text-align: center;
    color: var(--text-secondary);
}

.nl-query-error svg {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    color: #EF4444;
}

.nl-query-error h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    justify-content: center;
}

.hero-stats {
    display: flex;
    gap: 48px;
    justify-content: center;
}

.stat-item {
    animation: fadeInUp 0.8s ease;
    animation-fill-mode: both;
}

.stat-item:nth-child(1) { animation-delay: 0.1s; }
.stat-item:nth-child(2) { animation-delay: 0.2s; }
.stat-item:nth-child(3) { animation-delay: 0.3s; }

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.hero-visual {
    position: relative;
    height: 500px;
    animation: fadeIn 1s ease;
}

.hero-video-container {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: var(--bg-dark);
}

.hero-video-container:hover .hero-video {
    opacity: 0.9;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 24px;
    cursor: pointer;
    transition: opacity 0.3s ease;
    background: linear-gradient(135deg, #0A0E27 0%, #1a1a2e 100%);
    min-height: 400px;
}

/* Video Loading and Error States */
.video-loading,
.video-error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    text-align: center;
    z-index: 10;
    background: rgba(0, 0, 0, 0.7);
    padding: 20px 30px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.video-loading {
    display: flex;
    align-items: center;
    gap: 12px;
}

.video-loading::before {
    content: '';
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.video-error {
    max-width: 400px;
}

.video-error p {
    margin: 0;
    line-height: 1.6;
}

/* Video Controls Overlay */
.video-controls-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    border-radius: 24px;
}

.hero-video-container:hover .video-controls-overlay {
    opacity: 1;
    pointer-events: auto;
}

/* Center Play/Pause Button */
.video-center-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
    backdrop-filter: blur(10px);
    z-index: 20;
}

.video-center-btn:hover {
    background: rgba(0, 0, 0, 0.9);
    border-color: var(--primary-color);
    transform: translate(-50%, -50%) scale(1.1);
}

.video-center-btn:active {
    transform: translate(-50%, -50%) scale(0.95);
}

.video-center-btn svg {
    width: 32px;
    height: 32px;
}

/* Bottom Control Bar */
.video-controls-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 50%, transparent 100%);
    padding: 20px 16px 16px;
    border-radius: 0 0 24px 24px;
    z-index: 15;
}

/* Progress Bar */
.video-progress-container {
    margin-bottom: 12px;
    cursor: pointer;
}

.video-progress-bar {
    position: relative;
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    overflow: hidden;
    cursor: pointer;
    transition: height 0.2s ease;
}

.video-progress-bar:hover {
    height: 8px;
}

.video-progress-filled {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--primary-color);
    border-radius: 3px;
    transition: width 0.1s linear;
    width: 0%;
}

.video-progress-handle {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(-50%, -50%);
    width: 14px;
    height: 14px;
    background: white;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.2s ease;
    cursor: grab;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.video-progress-bar:hover .video-progress-handle {
    opacity: 1;
}

.video-progress-handle:active {
    cursor: grabbing;
}

/* Control Buttons */
.video-controls-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.video-controls-left,
.video-controls-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.video-control-btn-small {
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    border-radius: 4px;
}

.video-control-btn-small:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.1);
}

.video-control-btn-small:active {
    transform: scale(0.95);
}

.video-control-btn-small svg {
    width: 20px;
    height: 20px;
}

/* Volume Control */
.video-volume-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.video-volume-slider-container {
    width: 0;
    overflow: hidden;
    transition: width 0.3s ease;
}

.video-volume-container:hover .video-volume-slider-container {
    width: 80px;
}

.video-volume-slider {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.video-volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.video-volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.video-volume-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: transform 0.2s ease;
}

.video-volume-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
}

/* Time Display */
.video-time {
    color: white;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    user-select: none;
}

.video-time-separator {
    margin: 0 4px;
    opacity: 0.7;
}

/* Icon States */
.video-control-btn .play-icon,
.video-control-btn .pause-icon,
.video-control-btn-small .play-icon,
.video-control-btn-small .pause-icon {
    position: absolute;
}

.hero-video-container.playing .pause-icon {
    display: block !important;
}

.hero-video-container.playing .play-icon {
    display: none !important;
}

.hero-video-container.paused .play-icon {
    display: block !important;
}

.hero-video-container.paused .pause-icon {
    display: none !important;
}

.hero-video-container.muted .volume-muted-icon {
    display: block !important;
}

.hero-video-container.muted .volume-icon {
    display: none !important;
}

.hero-video-container:not(.muted) .volume-icon {
    display: block !important;
}

.hero-video-container:not(.muted) .volume-muted-icon {
    display: none !important;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Trusted By Section */
.trusted-by {
    padding: 60px 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.trusted-by-label {
    text-align: center;
    color: var(--text-light);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 32px;
}

.company-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.logo-placeholder {
    color: var(--text-light);
    font-size: 18px;
    font-weight: 600;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.logo-placeholder:hover {
    opacity: 1;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.3s;
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(29, 78, 216, 0.10));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.feature-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Solutions Section */
.solutions {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.solution-card {
    padding: 40px;
    background: var(--bg-primary);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.solution-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.solution-description {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.solution-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
}

.solution-link:hover {
    gap: 8px;
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background: var(--bg-primary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.testimonial-text {
    font-size: 18px;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 18px;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.author-role {
    font-size: 14px;
    color: var(--text-secondary);
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 20px;
    margin-bottom: 32px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

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

.cta-section .btn-primary:hover {
    background: var(--bg-secondary);
}

.cta-section .btn-outline {
    border-color: white;
    color: white;
}

.cta-section .btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

/* Footer */
.footer {
    padding: 80px 0 32px;
    background: var(--bg-dark);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo .logo-text {
    color: white;
    -webkit-text-fill-color: white;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-heading {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

.social-links {
    display: flex;
    gap: 24px;
}

.social-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.social-links a:hover {
    color: white;
}

/* Responsive Design */
/* Search Modal */
.search-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
}

.search-modal.active {
    display: block;
}

.search-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
}

.search-modal-content {
    position: relative;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    animation: slideDown 0.3s ease;
    max-height: 80vh;
    overflow-y: auto;
}

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

.search-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 24px;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 24px;
}

.search-icon {
    position: absolute;
    left: 16px;
    color: var(--text-light);
    pointer-events: none;
    z-index: 1;
}

.search-input {
    width: 100%;
    padding: 16px 48px 16px 48px;
    font-size: 18px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.3s;
    font-family: inherit;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12);
}

.search-input::placeholder {
    color: var(--text-light);
}

.search-close {
    position: absolute;
    right: 16px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s;
    border-radius: 6px;
}

.search-close:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.search-results {
    min-height: 200px;
}

.search-suggestions {
    display: block;
}

.search-results-list {
    display: none;
}

.search-results-list.active {
    display: block;
}

.search-section {
    margin-bottom: 32px;
}

.search-section:last-child {
    margin-bottom: 0;
}

.search-section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.search-suggestion-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.search-suggestion-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.2s;
    border: 1px solid transparent;
}

.search-suggestion-item:hover {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--primary-color);
}

.search-suggestion-item svg {
    color: var(--text-light);
    flex-shrink: 0;
}

.search-suggestion-item:hover svg {
    color: var(--primary-color);
}

.search-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.search-tag {
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.search-tag:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.search-result-item {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background 0.2s;
}

.search-result-item:hover {
    background: var(--bg-secondary);
}

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

.search-result-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-result-title svg {
    color: var(--text-light);
    flex-shrink: 0;
}

.search-result-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.search-result-category {
    display: inline-block;
    padding: 4px 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    font-size: 12px;
    color: var(--text-light);
    margin-top: 8px;
}

.search-no-results {
    padding: 48px 24px;
    text-align: center;
    color: var(--text-secondary);
}

.search-no-results svg {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    color: var(--text-light);
}

.search-no-results h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.search-no-results p {
    font-size: 14px;
    color: var(--text-secondary);
}

.search-result-item {
    text-decoration: none;
    color: inherit;
    display: block;
}

.search-result-item mark {
    background: rgba(29, 78, 216, 0.16);
    color: var(--primary-color);
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: 600;
}

/* Authentication Pages */
.auth-page {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    min-height: 100vh;
}

.auth-section {
    padding: 120px 0 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 80px);
}

.auth-container {
    width: 100%;
    max-width: 480px;
    padding: 0 24px;
}

.auth-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.auth-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

.auth-form {
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-label .optional {
    font-weight: 400;
    color: var(--text-light);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.3s;
    font-family: inherit;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.12);
}

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

.password-input-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s;
}

.password-toggle:hover {
    color: var(--primary-color);
}

.password-requirements {
    margin-top: 8px;
}

.password-hint {
    font-size: 12px;
    color: var(--text-light);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-input {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.forgot-password {
    font-size: 14px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.forgot-password:hover {
    color: var(--primary-hover);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.auth-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 32px 0;
    color: var(--text-light);
    font-size: 14px;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.auth-divider span {
    padding: 0 16px;
}

.social-auth {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

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

.social-btn svg {
    flex-shrink: 0;
}

.auth-footer {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.auth-footer p {
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

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

.link {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
}

@media (max-width: 1024px) {
    .hero-visual {
        height: 400px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-actions .btn-secondary,
    .nav-actions .btn-primary {
        display: none;
    }
    
    .search-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .search-container {
        padding: 16px;
    }
    
    .search-input {
        font-size: 16px;
        padding: 14px 44px 14px 44px;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .nl-query-input {
        font-size: 16px;
        padding: 16px 56px 16px 52px;
    }
    
    .nl-query-examples {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nl-query-examples-label {
        margin-bottom: 8px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-title {
        font-size: 36px;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .auth-card {
        padding: 24px;
    }
    
    .auth-title {
        font-size: 28px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .social-auth {
        grid-template-columns: 1fr;
    }
}