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

:root {
    --bg: #0a0a0b;
    --bg-elevated: #111113;
    --bg-card: #16161a;
    --border: #222228;
    --text: #ededef;
    --text-muted: #8a8a96;
    --accent: #6c5ce7;
    --accent-light: #a29bfe;
    --accent-glow: rgba(108, 92, 231, 0.3);
    --gradient: linear-gradient(135deg, #6c5ce7, #a29bfe, #74b9ff);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 24px;
    transition: background 0.3s, backdrop-filter 0.3s;
}

.nav.scrolled {
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: 1120px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.05rem;
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--gradient);
    border-radius: 10px;
    font-weight: 800;
    font-size: 0.75rem;
    color: #fff;
    letter-spacing: -0.02em;
}

.nav-cta {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
}

.nav-cta:hover {
    color: var(--text);
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    animation: float 8s ease-in-out infinite;
}

.glow-1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -10%;
    left: 20%;
}

.glow-2 {
    width: 400px;
    height: 400px;
    background: #74b9ff;
    bottom: -5%;
    right: 15%;
    animation-delay: -4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.hero-content {
    position: relative;
    max-width: 720px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.04em;
    margin-bottom: 28px;
    animation: fadeUp 0.8s ease both;
}

.hero-title {
    font-size: clamp(2.4rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    animation: fadeUp 0.8s ease 0.1s both;
}

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

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto 36px;
    animation: fadeUp 0.8s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeUp 0.8s ease 0.3s both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.925rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    background: var(--accent-light);
    box-shadow: 0 0 30px var(--accent-glow);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-elevated);
    border-color: #333;
    transform: translateY(-1px);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

/* ===== Services ===== */
.services {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-light);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

.service-card:hover {
    border-color: #333;
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(108, 92, 231, 0.1);
    color: var(--accent-light);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.925rem;
    line-height: 1.65;
}

/* ===== CTA ===== */
.cta {
    padding: 40px 0 100px;
}

.cta-card {
    position: relative;
    text-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 64px 32px;
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: var(--accent);
    filter: blur(120px);
    opacity: 0.15;
    pointer-events: none;
}

.cta-card h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    position: relative;
}

.cta-card p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 32px;
    position: relative;
}

.cta-card .btn {
    position: relative;
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 0.925rem;
}

.footer-brand .logo-icon {
    width: 28px;
    height: 28px;
    font-size: 0.65rem;
    border-radius: 8px;
}

.footer-copy {
    font-size: 0.825rem;
    color: var(--text-muted);
}

/* ===== Scroll animations ===== */
.service-card,
.section-header,
.cta-card {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.service-card.visible,
.section-header.visible,
.cta-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.service-card:nth-child(2) { transition-delay: 0.1s; }
.service-card:nth-child(3) { transition-delay: 0.2s; }

/* ===== Responsive ===== */
@media (max-width: 640px) {
    .hero {
        padding: 100px 20px 60px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
        max-width: 280px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .cta-card {
        padding: 48px 24px;
    }
}