:root {
    --bg: #050609;
    --bg-alt: #0b0e14;
    --card: #111623;
    --accent: #5cffb6;
    --accent-soft: rgba(92, 255, 182, 0.1);
    --text: #f7f7f7;
    --muted: #9aa0b5;
    --border: #222636;
    --danger: #ff6b81;
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.55);
    --transition: 0.2s ease-out;
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
        "Segoe UI", sans-serif;
}

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

body {
    margin: 0;
    font-family: var(--font-main);
    background: radial-gradient(circle at top left, #182033 0, var(--bg) 40%);
    color: var(--text);
}

/* Layout */

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 16px;
}

.section {
    padding: 72px 0;
}

.section-alt {
    padding: 72px 0;
    background: var(--bg-alt);
}

.section-header h2 {
    margin: 0 0 8px;
    font-size: 28px;
}

.section-header p {
    margin: 0;
    color: var(--muted);
}

.grid {
    display: grid;
    gap: 24px;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* Header */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    background: linear-gradient(to bottom, rgba(5, 6, 9, 0.9), rgba(5, 6, 9, 0.3));
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 6px;
    font-weight: 700;
}

.logo-mark {
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 14px;
}

.logo-sub {
    font-size: 16px;
    color: var(--muted);
}

.main-nav {
    display: flex;
    gap: 16px;
    align-items: center;
    font-size: 14px;
}

.main-nav a {
    color: var(--muted);
    text-decoration: none;
    padding: 6px 8px;
    border-radius: 999px;
    transition: color var(--transition), background var(--transition);
}

.main-nav a:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
}

.nav-cta {
    border: 1px solid var(--accent);
    color: var(--accent);
}

/* Hero */

.hero {
    padding: 64px 0 40px;
}

.hero-inner {
    display: grid;
    gap: 32px;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: stretch;
}

.hero-text h1 {
    font-size: 32px;
    margin: 0 0 12px;
}

.hero-text p {
    margin: 0 0 18px;
    color: var(--muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 12px;
}

.hero-note {
    font-size: 13px;
    color: var(--muted);
}

.hero-card {
    background: radial-gradient(circle at top left, #1a2537 0, var(--card) 55%);
    border-radius: var(--radius-lg);
    padding: 20px 18px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-card h2 {
    margin: 0 0 12px;
    font-size: 18px;
}

.hero-list {
    margin: 0 0 12px;
    padding-left: 18px;
    font-size: 14px;
}

.hero-card-note {
    margin: 0;
    font-size: 12px;
    color: var(--muted);
}

/* Cards */

.card {
    background: var(--card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 16px 16px 18px;
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition), box-shadow var(--transition),
        border-color var(--transition), background var(--transition);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 50px rgba(0, 0, 0, 0.75);
    border-color: rgba(255, 255, 255, 0.12);
    background: #161b29;
}

.card-media {
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 10px;
}

.placeholder-media {
    height: 140px;
    background: linear-gradient(135deg, #22273a, #171c2a);
    position: relative;
}

.card-body h3 {
    margin: 0 0 8px;
    font-size: 18px;
}

.card-body p {
    margin: 0 0 10px;
    font-size: 14px;
    color: var(--muted);
}

.card-link {
    font-size: 14px;
    color: var(--accent);
    text-decoration: none;
}

.card-link:hover {
    text-decoration: underline;
}

/* Blog */

.blog-meta {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 4px;
}

/* Challenges */

.challenge-card p {
    font-size: 14px;
    color: var(--muted);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 10px 0 12px;
    padding: 0;
    list-style: none;
}

.tag-list li {
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--muted);
}

/* Coaching */

.coaching-layout {
    display: grid;
    gap: 28px;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 16px 0 16px;
    color: var(--muted);
    font-size: 14px;
}

.feature-list li {
    margin-bottom: 6px;
}

.coaching-card ol {
    padding-left: 18px;
    margin: 0 0 10px;
    font-size: 14px;
    color: var(--muted);
}

.coaching-note {
    font-size: 13px;
    color: var(--muted);
}

/* Rating */

.rating-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
}

.rating-score {
    font-size: 22px;
    margin: 0 0 8px;
}

.rating-score span {
    font-size: 12px;
    color: var(--muted);
}

.rating-bar {
    height: 8px;
    border-radius: 999px;
    background: #1e2434;
    overflow: hidden;
    margin-bottom: 10px;
}

.rating-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), #8afff1);
}

.rating-info {
    list-style: none;
    padding: 0;
    margin: 0 0 8px;
    font-size: 14px;
    color: var(--muted);
}

.rating-note {
    font-size: 12px;
    color: var(--muted);
}

/* Signup form */

.signup-form {
    margin-top: 24px;
    padding: 18px 16px 20px;
    border-radius: var(--radius-lg);
    background: #101525;
    border: 1px solid var(--border);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 14px;
}

.form-field label {
    font-size: 14px;
}

.form-field input,
.form-field select,
.form-field textarea {
    border-radius: var(--radius-sm);
    border: 1px solid #31384d;
    background: #080b13;
    padding: 8px 10px;
    color: var(--text);
    font: inherit;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
    color: #5f6780;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 1px rgba(92, 255, 182, 0.3);
}

.form-footer {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 4px;
}

.checkbox {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    font-size: 13px;
    color: var(--muted);
}

.checkbox input {
    margin-top: 3px;
}

/* Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 999px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition), border-color var(--transition),
        transform var(--transition), box-shadow var(--transition), color var(--transition);
}

.btn-primary {
    background: var(--accent);
    color: #04110a;
    box-shadow: 0 10px 25px rgba(92, 255, 182, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 32px rgba(92, 255, 182, 0.45);
}

.btn-outline {
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--text);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.06);
}

.btn-small {
    padding: 6px 12px;
    font-size: 13px;
}

/* Footer */

.site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 18px 0 26px;
    background: #05060a;
    margin-top: 32px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--muted);
}

.footer-links {
    display: flex;
    gap: 12px;
}

.footer-links a {
    color: var(--muted);
    text-decoration: none;
}

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

/* Responsive */

@media (max-width: 768px) {
    .hero-inner,
    .coaching-layout,
    .rating-grid {
        grid-template-columns: 1fr;
    }

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .main-nav {
        flex-wrap: wrap;
        justify-content: flex-start;
    }

    .site-footer .footer-inner {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
}