/* CSS Variables */
:root {
    --color-primary: #0066FF;
    --color-secondary: #00D4FF;
    --color-bg: #0A0F1C;
    --color-bg-light: #0D1424;
    --color-surface: #141B2D;
    --color-surface-light: #1A2340;
    --color-text: #FFFFFF;
    --color-text-secondary: #8892A6;
    --color-text-muted: #5A6478;
    --color-border: #1E2A45;
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --gradient-bg: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-light) 100%);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(10, 15, 28, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(30, 42, 69, 0.5);
    transition: var(--transition-medium);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-tech {
    color: var(--color-text);
}

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

.nav-cta {
    padding: 12px 24px;
    background: var(--gradient-primary);
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition-fast);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 102, 255, 0.4);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(30, 42, 69, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 42, 69, 0.3) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.gradient-orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.gradient-orb-2 {
    width: 500px;
    height: 500px;
    background: var(--color-secondary);
    bottom: -150px;
    left: -150px;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(-30px, -20px) scale(1.02); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(40px, 8vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.hero-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

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

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

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

.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.8s forwards;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: var(--gradient-primary);
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition-fast);
    box-shadow: 0 4px 30px rgba(0, 102, 255, 0.4);
    opacity: 0;
    animation: fadeInUp 0.8s ease 1s forwards;
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 40px rgba(0, 102, 255, 0.5);
}

.hero-cta svg {
    transition: var(--transition-fast);
}

.hero-cta:hover svg {
    transform: translateX(4px);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--color-text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0;
    animation: fadeInUp 0.8s ease 1.2s forwards;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-border);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 2px;
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(12px); opacity: 0.3; }
}

/* Section Styles */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 102, 255, 0.1);
    border: 1px solid rgba(0, 102, 255, 0.3);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-secondary);
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Features Section */
.features {
    padding: 120px 0;
    background: var(--gradient-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    transition: var(--transition-medium);
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.animate {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 102, 255, 0.5);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-desc {
    color: var(--color-text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

/* Stats Section */
.stats {
    padding: 80px 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    opacity: 0;
    transform: translateY(20px);
}

.stat-item.animate {
    opacity: 1;
    transform: translateY(0);
}

.stat-number {
    display: block;
    font-size: clamp(40px, 6vw, 56px);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* Value Proposition Section */
.value-prop {
    padding: 120px 0;
    background: var(--color-bg);
}

.value-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.value-text .section-tag {
    margin-bottom: 16px;
}

.value-text .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.value-desc {
    color: var(--color-text-secondary);
    font-size: 17px;
    line-height: 1.8;
    margin-bottom: 32px;
}

.value-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.value-list li {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 15px;
    color: var(--color-text-secondary);
}

.value-list svg {
    flex-shrink: 0;
}

.value-visual {
    display: flex;
    justify-content: center;
}

.visual-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.visual-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--color-surface-light);
    border-bottom: 1px solid var(--color-border);
}

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

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

.visual-dots span:first-child { background: #FF5F57; }
.visual-dots span:nth-child(2) { background: #FFBD2E; }
.visual-dots span:last-child { background: #28CA41; }

.visual-title {
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.visual-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.visual-line {
    display: grid;
    grid-template-columns: 120px 1fr 60px;
    align-items: center;
    gap: 16px;
}

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

.line-bar {
    height: 8px;
    background: var(--color-surface-light);
    border-radius: 4px;
    overflow: hidden;
}

.line-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 1s ease;
}

.line-fill-warning {
    background: linear-gradient(135deg, #FF9500, #FF5F57);
}

.line-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    text-align: right;
}

/* Contact Section */
.contact {
    padding: 120px 0;
    background: var(--gradient-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-tag {
    margin-bottom: 16px;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.contact-desc {
    color: var(--color-text-secondary);
    font-size: 17px;
    line-height: 1.8;
    margin-bottom: 32px;
}

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

.contact-email svg {
    color: var(--color-primary);
}

.contact-email a {
    color: var(--color-secondary);
    transition: var(--transition-fast);
}

.contact-email a:hover {
    color: var(--color-primary);
}

.contact-form-wrapper {
    position: relative;
}

.contact-form {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: 15px;
    transition: var(--transition-fast);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-submit {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 32px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 8px;
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.3);
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 102, 255, 0.4);
}

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

.form-success {
    display: none;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 60px 32px;
    text-align: center;
}

.form-success.show {
    display: block;
}

.contact-form.hidden {
    display: none;
}

.success-icon {
    margin-bottom: 24px;
}

.success-icon svg {
    animation: successPop 0.5s ease;
}

@keyframes successPop {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.form-success h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-success p {
    color: var(--color-text-secondary);
    font-size: 16px;
}

/* Footer */
.footer {
    padding: 60px 0 30px;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: 14px;
    margin-top: 12px;
}

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

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .value-content,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .value-visual {
        order: -1;
    }
    
    .value-text .section-title,
    .contact-info .section-title {
        text-align: center;
    }
    
    .value-text,
    .contact-info {
        text-align: center;
    }
    
    .value-list {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 16px;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .nav-cta {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    .hero {
        padding: 100px 16px 60px;
    }
    
    .hero-title {
        letter-spacing: -1px;
    }
    
    .hero-scroll {
        display: none;
    }
    
    .features,
    .value-prop,
    .contact {
        padding: 80px 0;
    }
    
    .stats {
        padding: 60px 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .visual-line {
        grid-template-columns: 80px 1fr 50px;
        gap: 8px;
    }
    
    .line-label {
        font-size: 11px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 24px;
    }
}

/* Animation utilities */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].animate {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animations */
.features-grid [data-animate]:nth-child(1) { transition-delay: 0.1s; }
.features-grid [data-animate]:nth-child(2) { transition-delay: 0.2s; }
.features-grid [data-animate]:nth-child(3) { transition-delay: 0.3s; }
.features-grid [data-animate]:nth-child(4) { transition-delay: 0.4s; }

.stats-grid [data-animate]:nth-child(1) { transition-delay: 0.1s; }
.stats-grid [data-animate]:nth-child(2) { transition-delay: 0.2s; }
.stats-grid [data-animate]:nth-child(3) { transition-delay: 0.3s; }
.stats-grid [data-animate]:nth-child(4) { transition-delay: 0.4s; }