/* Twitch Notifier — Landing Page */

:root {
    --bg: #0e0e10;
    --surface: #18181b;
    --surface-hover: #1f1f23;
    --border: #2a2a2e;
    --text: #efeff1;
    --text-secondary: #adadb8;
    --accent: #9147ff;
    --accent-hover: #772ce8;
    --red: #eb0400;
    --green: #00c853;
    --radius: 12px;
    --max-width: 720px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Layout */

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

section {
    padding: 80px 0;
}

/* Hero */

.hero {
    text-align: center;
    padding: 120px 0 80px;
}

.hero-icon {
    margin-bottom: 24px;
    display: block;
}

.hero-icon svg {
    display: inline-block;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.hero .tagline {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: background 0.2s, transform 0.1s;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

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

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

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

.btn-secondary:hover {
    background: var(--surface-hover);
}

/* Screenshot placeholder */

.screenshot-wrapper {
    margin-top: 48px;
    padding: 2px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--accent), var(--surface));
    display: inline-block;
}

.screenshot-placeholder {
    background: var(--surface);
    border-radius: calc(var(--radius) - 2px);
    padding: 48px 64px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Features */

.features {
    border-top: 1px solid var(--border);
}

.features h2 {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.feature-card .icon {
    margin-bottom: 12px;
    display: block;
    line-height: 1;
}

.feature-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Download */

.download {
    border-top: 1px solid var(--border);
    text-align: center;
}

.download h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.download .subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.install-methods {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.install-method {
    text-align: center;
}

.install-method h3 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Setup */

.setup {
    border-top: 1px solid var(--border);
}

.setup h2 {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 48px;
}

.setup-steps {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.setup-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.step-content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Footer */

.footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.footer-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 12px;
}

/* Responsive */

@media (max-width: 600px) {
    .hero h1 {
        font-size: 1.75rem;
    }

    .hero .tagline {
        font-size: 1rem;
    }

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

    section {
        padding: 48px 0;
    }

    .hero {
        padding: 64px 0 48px;
    }

    .screenshot-placeholder {
        padding: 32px;
    }
}