/* Reusable UI Components — light theme */

/* ============ Buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: -0.005em;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
}

.btn svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: translateX(3px);
}

.btn-primary {
    background: var(--color-text-strong);
    color: var(--color-text-invert);
}

.btn-primary:hover {
    background: #1F1F23;
    color: var(--color-text-invert);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text-strong);
    border-color: var(--color-border-strong);
}

.btn-secondary:hover {
    background: var(--color-bg-soft);
    border-color: var(--color-text-strong);
    color: var(--color-text-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-strong);
}

.btn-ghost:hover {
    background: var(--color-bg-muted);
}

.btn-lg {
    padding: 1.125rem 2rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Legacy alias so existing markup doesn't break */
.header-cta {
    display: inline-flex;
    align-items: center;
    padding: 0.625rem 1.25rem;
    background: var(--color-text-strong);
    color: var(--color-text-invert) !important;
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.header-cta:hover {
    background: #1F1F23;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ============ Cards ============ */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-interactive {
    cursor: pointer;
}

.card-accent-top {
    position: relative;
    overflow: hidden;
}

.card-accent-top::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent, var(--color-text-strong));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.card-accent-top:hover::before {
    transform: scaleX(1);
}

/* ============ Badge / tag ============ */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: var(--radius-full);
    background: var(--color-bg-muted);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

/* ============ Grids ============ */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }

@media (max-width: 960px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ============ Stat block ============ */
.stat {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--color-text-strong);
}

.stat-label {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

/* ============ Logo strip ============ */
.logo-strip {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    padding: 2rem 0;
    opacity: 0.75;
}

.logo-strip img,
.logo-strip .logo-text {
    height: 28px;
    width: auto;
    filter: grayscale(100%);
    transition: filter var(--transition-normal), opacity var(--transition-normal);
}

.logo-strip img:hover {
    filter: grayscale(0);
}

.logo-strip .logo-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-faint);
    letter-spacing: -0.02em;
}

/* ============ FAQ ============ */
.faq-container {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.faq-item:hover,
.faq-item[open] {
    border-color: var(--color-border-strong);
}

.faq-item summary {
    list-style: none;
    padding: 1.5rem 1.75rem;
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text-strong);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item .faq-body {
    padding: 0 1.75rem 1.5rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

/* ============ Testimonial ============ */
.testimonial {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-normal);
}

.testimonial:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-md);
}

.testimonial-quote {
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--color-text-strong);
    margin-bottom: 1.25rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg-muted);
    object-fit: cover;
    flex-shrink: 0;
}

.testimonial-meta {
    display: flex;
    flex-direction: column;
}

.testimonial-name {
    font-weight: 600;
    color: var(--color-text-strong);
    font-size: 0.9375rem;
}

.testimonial-role {
    font-size: 0.8125rem;
    color: var(--color-text-subtle);
}

/* ============ Divider ============ */
.divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--spacing-2xl) 0;
}

/* ============ Small pill (live/status/etc) ============ */
.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.875rem;
    font-family: var(--font-display);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.pill .pill-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-green);
    animation: pulse 2s ease-in-out infinite;
}