/* landing.css */
.landing-hero {
    text-align: center;
    padding: 6rem 2rem;
    background: radial-gradient(circle at top center, var(--primary-light) 0%, transparent 70%);
}

.landing-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.landing-hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    letter-spacing: -0.03em;
}

.landing-hero-text {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.landing-hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.landing-features {
    padding: 4rem 2rem;
    background-color: transparent;
}

.landing-features-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
    gap: 2rem;
}

.landing-features-action {
    display: flex;
    justify-content: center;
    margin-top: 2.5rem;
    align-items: center;
}

/* On the landing page this is a span so an anonymous visitor can use the
   surrounding link; make it occupy the same space as the button in study select. */
.landing-features .study-card-btn {
    display: block;
}

.landing-features-empty {
    grid-column: 1 / -1;
    color: var(--text-muted);
    text-align: center;
}

.landing-how {
    padding: 6rem 2rem;
    background-color: var(--bg-color);
}

.landing-how-container {
    max-width: 1000px;
    margin: 0 auto;
}

.landing-how-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 4rem;
}

.landing-how-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
    gap: 2rem;
    position: relative;
}

.landing-how-step {
    background: var(--surface-color);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    position: relative;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.landing-how-step:hover {
    box-shadow: var(--shadow-md);
}

.landing-how-number {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    margin: -3.5rem auto 1.5rem auto;
    box-shadow: var(--shadow-glow);
}

.landing-how-steptitle {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.landing-how-steptext {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.landing-cta {
    padding: 6rem 2rem;
    background: transparent;
    text-align: center;
}

.landing-cta-content {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--surface-color), var(--primary-light));
    padding: 4rem 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.landing-cta-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.landing-cta-text {
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 1.125rem;
}