:root {
    --bg-color: #220719;
    --bg-alt-color: #430d0d;
    --bg-alt2-color: #460727;
    --bg-bottom-color: #5a0560;
    --accent-color: #a52424;
    --accent-soft-color: #ff5c5c1f;
    --accent-strong-color: #ff5c5c40;
    --text-color: #f7f5f5;
    --text-muted-color: #cfd0d8;
    --card-background-color: #050816f2;
    --border-subtle-color: #ffffff18;
    --border-radius: 1.5rem;
    --shadow: 0 18px 45px #00000099;
    --max-width: 1200px;
    --transition-speed: 160ms ease-out;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    padding: 0;
    margin: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at 35% 10%, var(--bg-alt-color) 0%, transparent 25%),
        radial-gradient(ellipse 200% 40% at 70% 45%, var(--bg-alt2-color) 0%, transparent 40%),
        linear-gradient(transparent 84%, var(--bg-bottom-color) 95%);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Layout */

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4.5rem 0;
}

/* Header & Navigation */

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(5px);
    background: rgba(10, 7, 40, 0.85);
    border-bottom: 1px solid var(--border-subtle-color);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.5rem;
}

.logo a {
    font-weight: 600;
    font-size: 0.98rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--text-color);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 1.2rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-links a {
    text-decoration: none;
    font-size: 0.9rem;
    color: var(--text-muted-color);
    position: relative;
    padding-bottom: 0.1rem;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.35rem;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    border-radius: 999px;
    transition: width var(--transition-speed);
}

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

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

/* Mobile Navigation Toggle */

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    width: 1.75rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    height: 2px;
    width: 100%;
    background: var(--text-color);
    border-radius: 999px;
    transition: transform var(--transition-speed),
        opacity var(--transition-speed), width var(--transition-speed);
}

.nav-toggle.nav-open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle.nav-open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Hero */

.hero {
    padding: 4.5rem 0 3.5rem;
}

.hero-content {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: center;
    justify-items: center;
}

.hero-kicker {
    font-size: 0.85rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent-color);
    margin: 0 0 0.75rem;
}

.hero h1 {
    font-size: clamp(2.3rem, 4vw, 2.9rem);
    line-height: 1.15;
    margin: 0 0 1rem;
}

.hero-subtitle {
    color: var(--text-muted-color);
    max-width: 34rem;
    margin: 0 0 1.8rem;
}

.hero-button {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

/* Buttons */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.3rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition:
        var(--transition-speed), border-color var(--transition-speed),
        transform var(--transition-speed), box-shadow var(--transition-speed),
        color var(--transition-speed);
}

.primary-button {
    background: var(--accent-color);
    color: #fff;
    box-shadow: 0 5px 30px var(--accent-strong-color);
}

.primary-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 7px 40px var(--accent-strong-color);
}

.ghost-button {
    background: transparent;
    color: var(--text-color);
    border-color: rgba(255, 255, 255, 0.18);
}

.ghost-button:hover {
    background: rgba(255, 255, 255, 0.06);
}

/* Hero Side Card */

.hero-card {
    display: flex;
    justify-content: flex-end;
}

.hero-card-inner {
    width: 100%;
    max-width: 280px;
    border-radius: var(--border-radius);
    background: radial-gradient(circle at top, var(--accent-strong-color), var(--accent-soft-color));
    border: 1px solid var(--accent-soft-color);
    box-shadow: var(--shadow);
    padding: 1.1rem 1.2rem;
}

.hero-card-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted-color);
    margin: 0 0 0.7rem;
}

.hero-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.hero-card li {
    font-size: 0.9rem;
    padding: 0.35rem 0.6rem;
    margin-bottom: 0.3rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--card-background-color) 75%, transparent);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Section Typography */

h2 {
    font-size: 1.7rem;
    margin-bottom: 0.7rem;
}

h3 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.section-intro {
    color: var(--text-muted-color);
    max-width: 48rem;
}

/* Split Layout */

.split {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.2fr);
    gap: 2.2rem;
    align-items: center;
}

.about-highlight {
    border-radius: var(--border-radius);
    padding: 0.5rem 1.3rem 1.1rem;
    background: var(--card-background-color);
    border: 1px solid var(--border-subtle-color);
}

.about-highlight ul {
    padding-left: 1.1rem;
    margin: 0.6rem 0 0;
}

/* Cards */

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.6rem;
    margin-top: 2rem;
}

.card {
    border-radius: var(--border-radius);
    background: var(--card-background-color);
    border: 1px solid var(--border-subtle-color);
    padding: 0.5rem 1.3rem 1.2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.card h3 {
    margin-bottom: 0.4rem;
}

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

.card-list {
    margin: 0.7rem 0 0;
    padding-left: 1.1rem;
    font-size: 0.9rem;
}

.card-meta {
    margin-top: 0.7rem;
    font-size: 0.85rem;
    color: var(--text-muted-color);
}

/* Process */

.process-steps {
    list-style: none;
    padding: 0;
    margin: 2rem 0 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem 2rem;
}

.process-steps h3 {
    margin-bottom: 0.25rem;
}

.process-steps p {
    font-size: 0.92rem;
    color: var(--text-muted-color);
}

/* Contact */

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.4fr);
    gap: 2rem;
    align-items: center;
}

.wide-button {
    width: 100%;
    justify-content: center;
}

.contact-note {
    font-size: 0.9rem;
    margin-top: 1.1rem;
    margin-bottom: 0.4rem;
}

.contact-list {
    font-size: 0.9rem;
    margin: 0;
    padding-left: 1.1rem;
}

/* Footer */

.site-footer {
    border-top: 1px solid var(--border-subtle-color);
    padding: 1.4rem 0 1.7rem;
    background: #02010b;
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: var(--text-muted-color);
}

.footer-note {
    opacity: 0.85;
}

/* Mobile Responsiveness */

@media (max-width: 820px) {
    .hero-content {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero-card {
        justify-content: flex-start;
    }

    .split, .card-grid, .process-steps, .testimonial-grid, .contact-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .card-grid {
        gap: 1.2rem;
    }

    .section {
        padding: 3.5rem 0;
    }
}

@media (max-width: 640px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;
        flex-direction: column;
        background: rgba(5, 8, 22, 0.98);
        padding: 0.6rem 1.5rem 0.9rem;
        border-bottom: 1px solid var(--border-subtle-color);
        transform-origin: top;
        transform: scaleY(0.95);
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-speed), transform var(--transition-speed);
    }

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

    .hero {
        padding-top: 3.5rem;
    }

    .hero h1 {
        font-size: 2.1rem;
    }

    .hero-button {
        flex-direction: column;
        align-items: stretch;
    }

    .button {
        width: 100%;
        justify-content: center;
    }
}