/* ============================================================================
 * landing.css — marketing-style pages (landing, about).
 *
 * Split out of pulsewatch.css during the Phase 3 cleanup: these styles only
 * load on a handful of public pages and were mixing app-level rules with
 * marketing visuals. Tokens still resolve through tokens.css (loaded first
 * in base.html), so the dark mode + accent system still applies.
 * ========================================================================= */

/* ----------------------------------------------------------------------------
 * Landing page hero
 * --------------------------------------------------------------------------*/
.landing-hero {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: #fff;
    padding: 4rem 0;
    text-align: center;
}
.hero-content h1 {
    font-size: 3rem;
    margin: 0 0 1rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
}
.hero-subtitle {
    font-size: 1.25rem;
    margin: 0 0 1rem;
    opacity: 0.9;
}
.hero-description {
    font-size: 1rem;
    margin: 0 auto 2rem;
    opacity: 0.8;
    max-width: 600px;
    line-height: 1.6;
}
.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ----------------------------------------------------------------------------
 * Features section (landing)
 * --------------------------------------------------------------------------*/
.features-section { padding: 4rem 0; }
.features-section h2 {
    text-align: center;
    margin: 0 0 3rem;
    font-size: 2rem;
    letter-spacing: -0.01em;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}
.feature-card {
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}
.feature-card h3 {
    margin: 0 0 1rem;
    font-size: var(--font-size-lg);
}
.feature-card p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ----------------------------------------------------------------------------
 * About page
 * --------------------------------------------------------------------------*/
.about-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
}
.about-header {
    text-align: center;
    margin-bottom: 3rem;
}
.about-header h1 {
    margin: 0 0 0.5rem;
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}
.about-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin: 0;
}
.about-section { margin-bottom: 3rem; }
.about-section h2 {
    margin: 0 0 1rem;
    font-size: 1.5rem;
}
.about-section p {
    line-height: 1.7;
    margin-bottom: 1rem;
}
.feature-list {
    list-style: none;
    padding: 0;
}
.feature-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-subtle);
}
.feature-list li:last-child { border-bottom: none; }
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}
.tech-item {
    background: var(--surface-2);
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
}