/* AI Vision Monitor - Dark Theme Redesign */
/* Based on logo colors and resend.com inspiration */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #F2F2F2;
    background: #000000;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Color Variables */
:root {
    --gradient-main: linear-gradient(135deg, #00FFE7 0%, #0053FF 50%, #FF3AF9 100%);
    --gradient-hover: linear-gradient(135deg, #00FFE7 20%, #0053FF 60%, #FF3AF9 100%);
    --color-orange: #FFB300;
    --color-white: #FFFFFF;
    --color-off-white: #F2F2F2;
    --color-muted: #B0B0B0;
    --color-black: #000000;
    --color-dark-gray: #101010;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* Header */
.header {
    background: var(--color-black);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-image {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 8px;
}

.logo h1 {
    color: var(--color-white);
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hackathon-badge {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.hackathon-badge span {
    color: var(--color-off-white);
    font-weight: 500;
    font-size: 0.9rem;
}

.hackathon-link {
    color: var(--color-off-white);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.hackathon-link:hover {
    color: var(--color-purple);
    transform: translateY(-2px);
}

.hackathon-link:hover span {
    color: var(--color-purple);
}

.hackathon-link i {
    font-size: 0.8rem;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.hackathon-link:hover i {
    opacity: 1;
    transform: translateX(2px);
}

/* Powered By Section */
.powered-by {
    background: var(--color-dark-gray);
    padding: 1rem 0;
    border-bottom: 1px solid var(--glass-border);
}

.tech-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.tech-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.convex-logo {
    background: linear-gradient(135deg, #FF6B35, #F7931E);
}

.resend-logo {
    background: linear-gradient(135deg, #333333, #666666);
}

.ai-logo {
    background: var(--gradient-main);
}

.tech-logo:hover {
    transform: scale(1.1);
}

.tech-logo-image {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.tech-name {
    color: var(--color-white);
    font-weight: 600;
    font-size: 1rem;
}

.tech-item.result .tech-name {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tech-divider {
    color: var(--color-muted);
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 0.5rem;
}

/* Hero Section */
.hero {
    background: var(--color-black);
    padding: 6rem 0 8rem;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(0, 255, 231, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(255, 58, 249, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 2rem;
    line-height: 1.1;
    color: var(--color-white);
}

.hero-title .gradient-text {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    color: var(--color-off-white);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.download-note {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.download-note i {
    margin-right: 0.5rem;
    color: #00FFE7;
}

.download-note strong {
    color: #fff;
}

.hero-image {
    text-align: center;
    position: relative;
}

.phone-mockup {
    max-width: 320px;
    width: 100%;
    height: auto;
    border-radius: 25px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
    background: var(--color-dark-gray);
    border: 1px solid var(--glass-border);
    padding: 20px;
    animation: float 6s ease-in-out infinite;
    object-fit: contain;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Buttons */
.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-main);
    color: var(--color-white);
    box-shadow: 0 8px 25px rgba(0, 255, 231, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 255, 231, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

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

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

.coming-soon {
    display: block;
    font-size: 0.8rem;
    opacity: 0.7;
    font-weight: 400;
    margin-top: 0.25rem;
}

/* Sections */
section {
    padding: 6rem 0;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    color: var(--color-white);
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: var(--gradient-main);
    margin: 1.5rem auto 0;
    border-radius: 2px;
}

/* AI Models Section */
.ai-models {
    background: var(--color-black);
    padding: 6rem 0;
    position: relative;
}

.section-subtitle {
    text-align: center;
    font-size: 1.3rem;
    color: var(--color-off-white);
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.model-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 3rem;
    border-radius: 24px;
    text-align: center;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.model-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: 24px 24px 0 0;
    transition: all 0.3s ease;
}

.model-card.fast::before {
    background: linear-gradient(135deg, #10b981, #34d399);
}

.model-card.smart::before {
    background: linear-gradient(135deg, #8b5cf6, #a855f7);
}

.model-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.model-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: block;
}

.model-card h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 1rem;
}

.model-name {
    font-size: 1.1rem;
    font-family: 'Courier New', monospace;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    margin-bottom: 1rem;
}

.model-cost {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-orange);
    margin-bottom: 2rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 179, 0, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(255, 179, 0, 0.2);
}

.model-features {
    list-style: none;
    text-align: left;
}

.model-features li {
    padding: 0.75rem 0;
    color: var(--color-off-white);
    position: relative;
    padding-left: 2rem;
    font-size: 1.05rem;
}

.model-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-orange);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Features Section */
.features {
    background: var(--color-dark-gray);
    position: relative;
}

.feature-card.premium::before {
    background: linear-gradient(135deg, #10b981, #34d399);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 3rem;
    border-radius: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-main);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-main);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    box-shadow: 0 8px 25px rgba(0, 255, 231, 0.3);
}

.feature-icon i {
    font-size: 2rem;
    color: var(--color-white);
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.feature-card p {
    color: var(--color-off-white);
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Pricing Section */
.pricing {
    background: var(--color-dark-gray);
    color: var(--color-white);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 2.5rem;
    border: 1px solid var(--glass-border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.pricing-card.featured {
    border: 2px solid transparent;
    background-image: linear-gradient(var(--glass-bg), var(--glass-bg)), 
                      var(--gradient-main);
    background-origin: border-box;
    background-clip: content-box, border-box;
    transform: scale(1.02);
}

.pricing-card.popular {
    border: 2px solid transparent;
    background-image: linear-gradient(var(--glass-bg), var(--glass-bg)), 
                      linear-gradient(135deg, #f59e0b, #d97706);
    background-origin: border-box;
    background-clip: content-box, border-box;
    transform: scale(1.05);
}

.pricing-card.pro {
    border: 2px solid transparent;
    background-image: linear-gradient(var(--glass-bg), var(--glass-bg)), 
                      linear-gradient(135deg, #8b5cf6, #a855f7);
    background-origin: border-box;
    background-clip: content-box, border-box;
}

.pricing-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.pricing-card.featured:hover {
    transform: translateY(-8px) scale(1.04);
}

.pricing-card.popular:hover {
    transform: translateY(-8px) scale(1.07);
}

.pricing-card.pro:hover {
    transform: translateY(-8px) scale(1.04);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-orange);
    color: var(--color-black);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 179, 0, 0.3);
}

.pricing-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.pricing-header h3 {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
}

.amount {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.currency {
    font-size: 1.3rem;
    color: var(--color-muted);
}

.pricing-cost {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-orange);
    margin-top: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 179, 0, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(255, 179, 0, 0.2);
}

.pricing-features {
    list-style: none;
}

.pricing-features li {
    padding: 1rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--color-off-white);
    font-size: 1.05rem;
}

.pricing-features i {
    color: var(--color-orange);
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* Instructions Section */
.instructions {
    background: var(--color-dark-gray);
}

.instructions-content {
    max-width: 1100px;
    margin: 0 auto;
}

.instruction-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    margin-bottom: 5rem;
    padding: 3rem 0;
}

.instruction-item.reverse {
    direction: rtl;
}

.instruction-item.reverse * {
    direction: ltr;
}

.instruction-text h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.instruction-text h3 i {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.8rem;
}

.instruction-text p {
    color: var(--color-off-white);
    margin-bottom: 2rem;
    line-height: 1.7;
    font-size: 1.1rem;
}

.instruction-text ul {
    list-style: none;
    padding-left: 0;
}

.instruction-text li {
    padding: 0.75rem 0;
    position: relative;
    padding-left: 2rem;
    color: var(--color-off-white);
    font-size: 1.05rem;
}

.instruction-text li::before {
    content: '→';
    color: var(--color-orange);
    font-weight: bold;
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

.instruction-image {
    position: relative;
    text-align: center;
}

.screenshot {
    max-width: 100%;
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
    background: var(--color-dark-gray);
    border: 1px solid var(--glass-border);
    padding: 20px;
    object-fit: contain;
    max-height: 500px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 200px;
    display: block;
}

.screenshot:hover {
    transform: scale(1.02);
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
}

/* Why Choose Section */
.why-choose {
    background: var(--color-black);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.benefit-item {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.benefit-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
}

.benefit-item i {
    font-size: 3.5rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
    display: block;
}

.benefit-item h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.benefit-item p {
    color: var(--color-off-white);
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Hackathon Impact Section */
.hackathon-impact {
    background: var(--color-dark-gray);
    padding: 8rem 0;
    position: relative;
}

.impact-content {
    position: relative;
    z-index: 1;
}

.impact-header {
    text-align: center;
    margin-bottom: 5rem;
}

.hackathon-logo {
    width: 100px;
    height: 100px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2.5rem;
    box-shadow: 0 12px 40px rgba(0, 255, 231, 0.3);
}

.hackathon-logo i {
    font-size: 2.5rem;
    color: var(--color-white);
}

.impact-subtitle {
    font-size: 1.3rem;
    color: var(--color-off-white);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.impact-timeline {
    max-width: 900px;
    margin: 0 auto 5rem;
    position: relative;
}

.impact-timeline::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-main);
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 4rem;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.2s; }
.timeline-item:nth-child(2) { animation-delay: 0.4s; }
.timeline-item:nth-child(3) { animation-delay: 0.6s; }

.timeline-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 3rem;
    flex-shrink: 0;
    box-shadow: 0 12px 40px rgba(0, 255, 231, 0.3);
}

.timeline-icon i {
    font-size: 2rem;
    color: var(--color-white);
}

.timeline-content {
    flex: 1;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-right: 10px solid var(--glass-border);
}

.timeline-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.timeline-content p {
    color: var(--color-off-white);
    line-height: 1.7;
    font-size: 1.05rem;
}

.hackathon-features {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 4rem;
    border-radius: 24px;
    margin-bottom: 4rem;
}

.hackathon-features h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 3rem;
    text-align: center;
}

.hackathon-features h3::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--gradient-main);
    margin: 1rem auto 0;
    border-radius: 2px;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-highlight {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-highlight:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 8px 25px rgba(0, 255, 231, 0.15);
}

.feature-highlight i {
    font-size: 1.5rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
}

.feature-highlight span {
    color: var(--color-off-white);
    font-weight: 500;
    font-size: 1.05rem;
}

.hackathon-quote {
    background: var(--gradient-main);
    padding: 4rem;
    border-radius: 24px;
    text-align: center;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hackathon-quote::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 30px;
    font-size: 8rem;
    opacity: 0.1;
    font-family: serif;
}

.hackathon-quote blockquote {
    font-size: 1.4rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-style: italic;
    position: relative;
    z-index: 1;
}

.hackathon-quote cite {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 600;
}

/* Video Demo Section */
.video-demo {
    margin-top: 5rem;
    text-align: center;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.8s forwards;
}

.video-demo h3 {
    font-size: 2.2rem;
    color: var(--color-white);
    margin-bottom: 1rem;
    font-weight: 600;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.video-subtitle {
    font-size: 1.1rem;
    color: var(--color-muted);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.video-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto 2rem;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 
        0 20px 60px rgba(0, 255, 231, 0.15),
        0 8px 25px rgba(0, 0, 0, 0.3);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-container:hover {
    transform: translateY(-5px);
    box-shadow: 
        0 30px 80px rgba(0, 255, 231, 0.25),
        0 12px 35px rgba(0, 0, 0, 0.4);
}

.video-container iframe {
    width: 100%;
    height: 500px;
    border: none;
    display: block;
}

.video-caption {
    color: var(--color-muted);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.video-caption i {
    color: var(--color-orange);
    font-size: 1.1rem;
}

/* Email Modal */
.email-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.email-modal.show {
    display: flex;
    opacity: 1;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.modal-content {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 
        0 25px 80px rgba(0, 255, 231, 0.2),
        0 10px 40px rgba(0, 0, 0, 0.4);
    animation: modalSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h3 {
    font-size: 1.8rem;
    color: var(--color-white);
    font-weight: 600;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.modal-close:hover {
    background: var(--glass-bg);
    color: var(--color-white);
    transform: scale(1.1);
}

.modal-body {
    padding: 2rem;
}

.modal-body p {
    color: var(--color-off-white);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    text-align: center;
}

.email-form {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-off-white);
    font-weight: 500;
    margin-bottom: 0.8rem;
    font-size: 1rem;
}

.form-group label i {
    color: var(--color-orange);
}

.form-group input {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--color-white);
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-orange);
    box-shadow: 0 0 0 3px rgba(255, 179, 0, 0.1);
}

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

.btn-full {
    width: 100%;
    padding: 1.2rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.privacy-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--color-muted);
    font-size: 0.9rem;
    text-align: center;
    margin: 0;
}

.privacy-note i {
    color: var(--color-orange);
}

/* Modal Mobile Styles */
@media (max-width: 768px) {
    .modal-content {
        margin: 1rem;
        width: calc(100% - 2rem);
        border-radius: 20px;
    }
    
    .modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .modal-header h3 {
        font-size: 1.5rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .modal-body p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .form-group input {
        padding: 0.9rem 1.2rem;
    }
    
    .btn-full {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }
}

/* CTA Section */
.cta {
    background: var(--color-black);
    color: var(--color-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(0, 255, 231, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    color: var(--color-off-white);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

/* Footer */
.footer {
    background: var(--color-dark-gray);
    color: var(--color-white);
    padding: 3rem 0;
    border-top: 1px solid var(--glass-border);
}

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

.footer-info h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-white);
}

.footer-info p {
    color: var(--color-muted);
    font-size: 1.05rem;
}

.footer-links a {
    color: var(--color-off-white);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.footer-links a:hover {
    background: var(--glass-bg);
    border-color: var(--glass-border);
    color: var(--color-white);
}

/* Notification System */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    max-width: 400px;
    padding: 1rem 1.5rem;
    background: var(--color-orange);
    color: var(--color-black);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(255, 179, 0, 0.3);
    animation: slideInRight 0.3s ease-out;
    font-weight: 500;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification-close {
    background: none;
    border: none;
    color: var(--color-black);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    margin-left: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    .powered-by {
        padding: 0.75rem 0;
    }
    
    .tech-logos {
        gap: 1rem;
        flex-direction: row;
    }
    
    .tech-item {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }
    
    .tech-logo {
        width: 42px;
        height: 42px;
    }
    
    .tech-logo-image {
        width: 24px;
        height: 24px;
    }
    
    .tech-name {
        display: none;
    }
    
    .tech-divider {
        transform: none;
        margin: 0;
        font-size: 1.5rem;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .models-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .model-card {
        padding: 2.5rem;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .pricing-card {
        padding: 2rem;
    }
    
    .pricing-card.featured,
    .pricing-card.popular,
    .pricing-card.pro {
        transform: none;
    }
    
    .pricing-card.featured:hover,
    .pricing-card.popular:hover,
    .pricing-card.pro:hover {
        transform: translateY(-5px);
    }
    
    .instruction-item {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .instruction-item.reverse {
        direction: ltr;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .cta-content h2 {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .powered-by {
        padding: 0.5rem 0;
    }
    
    .tech-logos {
        gap: 0.75rem;
    }
    
    .tech-logo {
        width: 36px;
        height: 36px;
    }
    
    .tech-logo-image {
        width: 20px;
        height: 20px;
    }
    
    .tech-divider {
        font-size: 1.2rem;
    }
    

    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .btn {
        padding: 1rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .feature-card {
        padding: 2rem;
    }
    
    .model-card {
        padding: 2rem;
    }
    
    .model-icon {
        font-size: 3rem;
    }
    
    .pricing-card {
        padding: 1.5rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .benefit-item {
        padding: 2rem 1.5rem;
    }
    
    .instruction-text h3 {
        font-size: 1.6rem;
    }
    
    .hackathon-impact {
        padding: 5rem 0;
    }
    
    .impact-timeline::before {
        left: 40px;
    }
    
    .timeline-icon {
        width: 80px;
        height: 80px;
        margin-right: 1.5rem;
    }
    
    .timeline-icon i {
        font-size: 1.5rem;
    }
    
    .timeline-content {
        padding: 2.5rem;
    }
    
    .hackathon-features {
        padding: 3rem;
    }
    
    .features-list {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .hackathon-quote {
        padding: 3rem;
    }
    
    .hackathon-quote blockquote {
        font-size: 1.2rem;
    }
    
    /* Video Demo Mobile */
    .video-demo {
        margin-top: 3rem;
        padding: 0 1rem;
    }
    
    .video-demo h3 {
        font-size: 1.8rem;
    }
    
    .video-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .video-container {
        border-radius: 15px;
        margin-bottom: 1.5rem;
    }
    
    .video-container iframe {
        height: 280px;
    }
    
    .video-caption {
        font-size: 0.9rem;
        padding: 0 1rem;
    }
}

/* Smooth Scrolling (respect reduced motion) */
@media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Interactive Elements */
.interactive {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.interactive:hover {
    transform: scale(1.02);
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .phone-mockup {
        animation: none;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-dark-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-main);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-hover);
}

/* Selection Styling */
::selection {
    background: rgba(0, 255, 231, 0.3);
    color: var(--color-white);
}

::-moz-selection {
    background: rgba(0, 255, 231, 0.3);
    color: var(--color-white);
}

/* ---------------------------------------
   Performance: compositing + mobile fallbacks
   --------------------------------------- */
/* Hint GPU compositing for frequently transformed elements */
.hero,
.feature-card,
.model-card,
.pricing-card,
.instruction-item,
.benefit-item,
.btn {
    will-change: transform;
}

/* Avoid hover transforms on touch devices */
@media (hover: none) {
    .interactive:hover,
    .btn:hover,
    .model-card:hover,
    .feature-card:hover,
    .pricing-card:hover {
        transform: none !important;
    }
}

/* Defer rendering of below-the-fold sections */
.features,
.ai-models,
.pricing,
.instructions {
    content-visibility: auto;
    contain-intrinsic-size: 1000px;
}

/* Mobile: disable expensive blur and heavy shadows */
@media (max-width: 768px), (prefers-reduced-motion: reduce) {
    .header,
    .logo-image,
    .hackathon-badge,
    .model-card,
    .feature-card,
    .pricing-card,
    .instruction-item,
    .benefit-item {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    .model-card,
    .feature-card,
    .pricing-card,
    .instruction-item,
    .benefit-item {
        box-shadow: none !important;
    }
}

/* Containment to reduce paint scope on cards */
.model-card { contain: paint; }