/* FocuShift Landing Page — Clean, calm, focused */

:root {
    --color-bg: #0f1419;
    --color-bg-soft: #1a2332;
    --color-text: #e8edf4;
    --color-text-muted: #8b9eb7;
    --color-accent: #4a90e2;
    --color-accent-hover: #5ba3f5;
    --color-card: rgba(255, 255, 255, 0.04);
    --color-card-border: rgba(255, 255, 255, 0.08);
    --font: "DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    padding: 24px 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

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

/* Hero */
.hero {
    padding: 80px 0 100px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 480px;
    margin: 0 auto 32px;
}

.cta-button {
    display: inline-block;
    background: var(--color-accent);
    color: white;
    font-size: 1.125rem;
    font-weight: 600;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    transition: background 0.2s;
}

.cta-button:hover {
    background: var(--color-accent-hover);
}

.hero-note {
    margin-top: 20px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Features */
.features {
    padding: 60px 0 80px;
}

.features h2 {
    font-size: 1.75rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 40px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: 16px;
    padding: 28px;
}

.feature-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

/* CTA Section */
.cta-section {
    padding: 60px 0 80px;
    text-align: center;
}

.cta-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.cta-button-secondary {
    background: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
}

.cta-button-secondary:hover {
    background: rgba(74, 144, 226, 0.15);
}

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

.footer p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-align: center;
}