/* ========================================
   KEY MODE LANDING PAGE
   Page-specific styles (brand.css provides base)
   ======================================== */

/* ========================================
   SHARED COMPONENTS
   ======================================== */

.section-heading {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-ink);
    margin-top: var(--space-sm);
    margin-bottom: var(--space-xl);
}

kbd {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    padding: 3px 7px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: 0 1px 0 var(--color-border);
    color: var(--color-ink);
    white-space: nowrap;
}

/* ========================================
   HERO
   ======================================== */

.hero {
    padding: var(--space-3xl) 0 var(--space-xl);
    text-align: center;
}

.hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.hero .eyebrow {
    margin-bottom: var(--space-md);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-ink);
    margin-bottom: var(--space-sm);
}

.hero-tagline {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 400;
    font-style: italic;
    color: var(--color-pencil);
    margin-bottom: var(--space-lg);
}

.hero-description {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 400;
    line-height: 1.75;
    color: var(--color-pencil);
    max-width: 62ch;
    margin: 0 auto var(--space-lg);
}

.hero-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.hero-hint {
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 500;
    color: var(--color-muted);
}

/* ========================================
   VIDEO
   ======================================== */

.video-section {
    padding: 0 0 var(--space-3xl);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-xl);
}

/* ========================================
   FEATURES
   ======================================== */

.features {
    padding: var(--space-3xl) 0;
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.features-eyebrow {
    text-align: center;
    margin-bottom: var(--space-sm);
}

.features .section-heading {
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    padding: 32px;
    background: var(--color-paper);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    transition: box-shadow var(--transition-normal);
}

.feature-card:hover {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-md);
    color: var(--color-sepia);
    background: var(--color-parchment);
    border-radius: var(--radius-md);
}

.feature-card h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 500;
    line-height: 1.3;
    color: var(--color-ink);
    margin-bottom: var(--space-sm);
}

.feature-card p {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.65;
    color: var(--color-pencil);
}

.feature-card kbd {
    font-size: 11px;
}

/* ========================================
   COMMANDS
   ======================================== */

.commands-section {
    padding: var(--space-3xl) 0;
    text-align: center;
}

.commands-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    text-align: left;
}

.command-group {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.command-group h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border-light);
}

.command-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.command-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.command-item:last-child {
    border-bottom: none;
}

.command-item dt {
    flex-shrink: 0;
}

.command-item dd {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 400;
    color: var(--color-pencil);
    text-align: right;
}

/* ========================================
   PRIVACY / POLICY PAGE
   ======================================== */

.policy-page {
    padding: var(--space-xl) 0 var(--space-2xl);
}

.back-link {
    display: inline-block;
    margin-bottom: var(--space-lg);
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-sepia);
    transition: opacity var(--transition-fast);
}

.back-link:hover {
    opacity: 0.8;
}

.policy-content {
    max-width: 680px;
}

.policy-content h1 {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--space-sm);
}

.policy-content .last-updated {
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 500;
    color: var(--color-muted);
    margin-bottom: var(--space-xl);
}

.policy-content h2 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 500;
    color: var(--color-ink);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.policy-content p {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 400;
    line-height: 1.75;
    color: var(--color-pencil);
    margin-bottom: var(--space-md);
}

.policy-content ul {
    color: var(--color-pencil);
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
}

.policy-content li {
    font-family: var(--font-serif);
    font-size: 17px;
    line-height: 1.75;
    margin-bottom: var(--space-sm);
}

.policy-content a {
    color: var(--color-sepia);
    transition: opacity var(--transition-fast);
}

.policy-content a:hover {
    text-decoration: underline;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    .hero {
        padding: var(--space-2xl) 0 var(--space-xl);
    }

    .hero-title {
        font-size: 32px;
    }

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

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

@media (min-width: 769px) and (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .commands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}