:root {
    --background: #0A0A0A;
    --surface: #141414;
    --surface-light: #1A1A1A;
    --surface-lighter: #222222;
    --primary: #3B82F6;
    --primary-light: #60A5FA;
    --primary-dark: #2563EB;
    --accent: #10B981;
    --accent-light: #34D399;
    --text-primary: #FFFFFF;
    --text-secondary: #A3A3A3;
    --text-tertiary: #737373;
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    --glow: rgba(59, 130, 246, 0.15);
    --glow-accent: rgba(16, 185, 129, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom Cursor */
.cursor {
    width: 24px;
    height: 24px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: all 0.15s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    mix-blend-mode: difference;
    opacity: 0;
}

.cursor.active {
    opacity: 1;
}

.cursor-follower {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 0;
}

.cursor-follower.active {
    opacity: 0.6;
}

.cursor.hover {
    transform: scale(1.8);
    background: rgba(59, 130, 246, 0.1);
}

/* Page Transition */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background);
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.6s cubic-bezier(0.76, 0, 0.24, 1);
}

.page-transition.active {
    transform: translateY(0);
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 3rem;
    backdrop-filter: blur(20px) saturate(180%);
    background: rgba(10, 10, 10, 0.85);
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    animation: slideDown 0.6s cubic-bezier(0.76, 0, 0.24, 1) 0.2s forwards;
}

@keyframes slideDown {
    to {
        transform: translateY(0);
    }
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

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

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s cubic-bezier(0.76, 0, 0.24, 1);
}

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

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

.nav-links a.active {
    color: var(--text-primary);
}

.nav-cta {
    background: var(--primary);
    color: white;
    padding: 0.75rem 1.75rem;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
    text-decoration: none;
    display: inline-block;
}

.nav-cta:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Buttons */
.btn-primary {
    padding: 1.25rem 3rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 40px rgba(59, 130, 246, 0.35);
    font-family: 'Inter', sans-serif;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-block;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    padding: 1.25rem 3rem;
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
    text-decoration: none;
    display: inline-block;
}

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

/* Section Styles */
.section {
    padding: 8rem 2rem;
    position: relative;
}

.section-large {
    padding: 12rem 2rem;
}

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

.section-tag {
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 2rem;
    max-width: 900px;
}

.section-subtitle {
    font-size: clamp(1.15rem, 2vw, 1.35rem);
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 750px;
    margin-bottom: 3rem;
}

/* Grid Backgrounds */
.grid-bg {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent);
    pointer-events: none;
}

.grid-bg.animated {
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

/* Glow Effects */
.glow-primary {
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse 4s ease-in-out infinite;
}

.glow-accent {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--glow-accent) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse 5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.4;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Scroll Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(60px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-60px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(60px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* Cards */
.card {
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 3rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.card:hover {
    transform: translateY(-8px);
    border-color: var(--border-light);
    background: var(--surface-lighter);
}

/* Footer */
footer {
    padding: 5rem 2rem 2rem;
    background: var(--background);
    border-top: 1px solid var(--border);
    position: relative;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand h3 {
    font-size: 1.75rem;
    margin-bottom: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-brand p {
    color: var(--text-tertiary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--surface-light);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background: var(--surface-lighter);
    color: var(--text-primary);
    transform: translateY(-2px);
    border-color: var(--border-light);
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.75rem;
    color: var(--text-primary);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.footer-links a {
    color: var(--text-tertiary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--text-primary);
    transform: translateX(4px);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a {
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-bottom-links a:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 1024px) {
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 10, 10, 0.98);
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border);
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .mobile-menu-btn {
        display: flex;
    }

    .section, .section-large {
        padding: 5rem 1.5rem;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .footer-bottom-links {
        flex-direction: column;
        gap: 1rem;
    }

    .cursor, .cursor-follower {
        display: none;
    }
}