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

:root {
    --bg: #0a0a0a;
    --bg-elevated: #111111;
    --bg-card: #161616;
    --border: #222222;
    --text: #e0e0e0;
    --text-muted: #888888;
    --accent: #0078d4;
    --accent-glow: rgba(0, 120, 212, 0.15);
    --accent-hover: #1a8fe8;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Navigation ── */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}

.logo-cloud {
    color: var(--accent);
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Hero ── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 120, 212, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 120, 212, 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black 20%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black 20%, transparent 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, var(--accent-glow) 0%, transparent 50%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { transform: translate(-10%, -10%); }
    100% { transform: translate(10%, 10%); }
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 0 24px;
    max-width: 720px;
}

.hero-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.hero-content h1 {
    font-size: clamp(2.2rem, 6vw, 3.8rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 540px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

/* ── Buttons ── */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border: 1px solid var(--accent);
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 24px var(--accent-glow);
    transform: translateY(-1px);
}

/* ── Sections (shared) ── */
.section-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 48px;
}

/* ── Services ── */
.services {
    padding: 120px 0;
    border-top: 1px solid var(--border);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 36px 32px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    border-color: rgba(0, 120, 212, 0.3);
    box-shadow: 0 0 32px var(--accent-glow);
}

.service-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* ── Contact ── */
.contact {
    padding: 120px 0;
    border-top: 1px solid var(--border);
}

.contact-text {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 500px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    width: fit-content;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.contact-link:hover {
    border-color: rgba(0, 120, 212, 0.3);
    box-shadow: 0 0 20px var(--accent-glow);
}

.contact-link svg {
    width: 22px;
    height: 22px;
    color: var(--accent);
    flex-shrink: 0;
}

.contact-link span {
    font-size: 0.95rem;
}

/* ── Footer ── */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ── Mobile ── */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(12px);
        flex-direction: column;
        align-items: center;
        gap: 0;
        padding: 16px 0;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.3s, opacity 0.3s;
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        display: block;
        padding: 14px 0;
        font-size: 1rem;
    }

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

    .section-title {
        font-size: 1.6rem;
        margin-bottom: 32px;
    }

    .services {
        padding: 80px 0;
    }

    .contact {
        padding: 80px 0;
    }
}