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

:root {
    --bg: #0a0a0b;
    --bg-card: #131316;
    --bg-card-hover: #1a1a1f;
    --text: #e4e4e7;
    --text-muted: #8b8b94;
    --accent: #6ee7b7;
    --accent-dim: #34d399;
    --accent-bg: rgba(110, 231, 183, 0.08);
    --border: #23232a;
    --radius: 10px;
    --max-width: 1100px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

/* === Nav === */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 11, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

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

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

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

.nav-links a:hover {
    color: var(--text);
    opacity: 1;
}

.btn-nav {
    background: var(--accent);
    color: var(--bg) !important;
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.85rem !important;
}

.btn-nav:hover {
    opacity: 0.9 !important;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* === Hero === */
.hero {
    padding: 160px 24px 100px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero-content {
    max-width: 700px;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
}

.btn-primary:hover {
    background: var(--accent-dim);
    opacity: 1;
}

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

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    opacity: 1;
}

/* === Sections === */
section {
    padding: 100px 0;
}

section h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-sub {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 48px;
}

/* === Problem Section === */
.problem {
    border-top: 1px solid var(--border);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: border-color 0.2s;
}

.problem-card:hover {
    border-color: #333;
}

.problem-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.problem-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.problem-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.problem-card p + p {
    margin-top: 12px;
    font-size: 0.88rem;
    line-height: 1.6;
}

.problem-detail {
    border-top: 1px solid var(--border);
    padding-top: 12px;
}

/* === Stats Bar === */
.stats-bar {
    padding: 48px 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 8px;
}

.stat-label {
    display: block;
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.4;
}

/* === Fight Back === */
.fightback {
    border-top: 1px solid var(--border);
}

.fightback-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.fightback-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    border-left: 3px solid var(--accent);
}

.fightback-item h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.fightback-item p {
    color: var(--text-muted);
    font-size: 0.93rem;
    line-height: 1.6;
}

/* === Cost Comparison === */
.cost-comparison {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.cost-column {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}

.cost-column h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.cost-them h3 {
    color: #f87171;
}

.cost-us h3 {
    color: var(--accent);
}

.cost-column ul {
    list-style: none;
}

.cost-column li {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.cost-column li:last-child {
    border-bottom: none;
}

.cost-total {
    font-weight: 700;
    color: var(--text) !important;
    padding-top: 12px !important;
    margin-top: 4px;
    border-top: 2px solid var(--border) !important;
}

/* === Getting Started === */
.getting-started {
    border-top: 1px solid var(--border);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.step {
    position: relative;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent-bg);
    color: var(--accent);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 16px;
}

.step h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.step p {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* === Services === */
.services {
    border-top: 1px solid var(--border);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: border-color 0.2s;
    position: relative;
}

.service-card:hover {
    border-color: var(--accent);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.service-tag {
    display: inline-block;
    background: var(--accent-bg);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* === Workshops === */
.workshops {
    border-top: 1px solid var(--border);
}

.workshop-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.workshop-item {
    display: flex;
    gap: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 32px;
    transition: border-color 0.2s;
}

.workshop-item:hover {
    border-color: #333;
}

.workshop-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 64px;
    text-align: center;
}

.workshop-date .month {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.workshop-date .day {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.2;
}

.workshop-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.workshop-info p {
    color: var(--text-muted);
    font-size: 0.93rem;
    line-height: 1.6;
    margin-bottom: 10px;
}

.workshop-meta {
    color: var(--text-muted);
    font-size: 0.82rem;
}

.workshop-note {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 24px;
    font-style: italic;
}

/* === Self-Hosting Preview === */
.self-hosting-preview {
    border-top: 1px solid var(--border);
}

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

.stack-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color 0.2s;
}

.stack-item:hover {
    border-color: var(--accent);
}

.stack-item .replaces {
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}

.stack-item h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.stack-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* === Contact === */
.contact {
    border-top: 1px solid var(--border);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.contact-option {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}

.contact-option h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.contact-option p {
    color: var(--text-muted);
    font-size: 0.93rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.signup-form {
    display: flex;
    gap: 8px;
}

.signup-form input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
}

.signup-form input:focus {
    border-color: var(--accent);
}

.signup-form .btn {
    padding: 10px 18px;
    font-size: 0.85rem;
    white-space: nowrap;
}

.contact-option .btn-secondary {
    display: inline-block;
    font-size: 0.9rem;
    padding: 10px 20px;
}

/* === Contact Form === */
.contact-form {
    max-width: 640px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.form-group label .optional {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.82rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.93rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
    -webkit-appearance: none;
    appearance: none;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b8b94' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
}

.form-status {
    text-align: center;
    margin-top: 16px;
    font-size: 0.9rem;
    min-height: 24px;
}

.form-status.success {
    color: var(--accent);
}

.form-status.error {
    color: #f87171;
}

/* === Footer === */
footer {
    border-top: 1px solid var(--border);
    padding: 48px 0 32px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 8px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 24px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.82rem;
    text-align: center;
}

/* === Mobile === */
@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 11, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.open {
        display: flex;
    }

    .hero {
        padding: 120px 24px 60px;
    }

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

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

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

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

    .cost-comparison {
        grid-template-columns: 1fr;
    }

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

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

    .workshop-item {
        flex-direction: column;
        gap: 16px;
    }

    .workshop-date {
        flex-direction: row;
        gap: 8px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 24px;
    }

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

    .signup-form {
        flex-direction: column;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    section {
        padding: 64px 0;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        text-align: center;
    }

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

    .stat-number {
        font-size: 1.8rem;
    }
}