/* Gauss AI - Components v2.0
   Buttons, cards, badges, FAQ, stats, trust signals */

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-pill);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: var(--text-body);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--duration-base) var(--ease-out);
    white-space: nowrap;
}

.btn svg { flex-shrink: 0; }

.btn--whatsapp {
    background: var(--whatsapp-green);
    color: var(--gauss-white);
    box-shadow: var(--shadow-glow-green);
}
.btn--whatsapp:hover {
    background: var(--whatsapp-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37,211,102,0.35);
}

.btn--dark {
    background: var(--gauss-ink-900);
    color: var(--gauss-white);
}
.btn--dark:hover {
    background: #1a2a3f;
    transform: translateY(-1px);
}

.btn--outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}
.btn--outline:hover {
    border-color: var(--gauss-ink-900);
    background: var(--color-bg-subtle);
}

.btn--outline-light {
    background: transparent;
    color: var(--gauss-white);
    border: 1px solid rgba(255,255,255,0.3);
}
.btn--outline-light:hover {
    background: var(--gauss-white);
    color: var(--gauss-ink-900);
}

.btn--lg {
    padding: 1rem 2.25rem;
    font-size: 1.05rem;
    font-weight: 700;
}

.btn--sm {
    padding: 0.5rem 1rem;
    font-size: var(--text-sm);
}

.btn--block {
    display: flex;
    width: 100%;
}

/* === Badges === */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-pill);
    font-size: var(--text-sm);
    font-weight: 500;
}

.badge--subtle {
    background: var(--color-bg-subtle);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.badge--success {
    background: var(--whatsapp-green);
    color: var(--gauss-white);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge__dot {
    width: 8px;
    height: 8px;
    background: var(--whatsapp-green);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

/* === Cards === */
.card {
    background: var(--gauss-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    transition: all var(--duration-base) var(--ease-out);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.card__icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-3);
}
.card__icon svg { width: 24px; height: 24px; }

.card__icon--blue   { background: rgba(21,88,160,0.08);  color: var(--gauss-blue-600); }
.card__icon--cyan   { background: rgba(63,164,229,0.1);  color: var(--gauss-cyan-500); }
.card__icon--green  { background: rgba(24,169,87,0.08);  color: var(--gauss-success); }
.card__icon--navy   { background: rgba(11,18,32,0.06);   color: var(--gauss-ink-900); }

.card h3 {
    margin-bottom: 0.5rem;
}

.card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.65;
}

/* === Pricing Cards === */
.pricing-card {
    background: var(--gauss-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition: all var(--duration-base) var(--ease-out);
}

.pricing-card:hover {
    border-color: var(--gauss-ink-900);
    transform: translateY(-4px);
}

.pricing-card--featured {
    background: var(--gauss-ink-900);
    color: var(--gauss-white);
    border-color: var(--gauss-ink-900);
}

.pricing-card--featured .plan-desc {
    border-color: rgba(255,255,255,0.15);
}

.plan-name {
    font-size: var(--text-body);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.plan-price {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    font-family: var(--font-brand);
}

.plan-price span {
    font-size: var(--text-body);
    font-weight: 400;
    opacity: 0.6;
}

.plan-desc {
    font-size: var(--text-sm);
    opacity: 0.7;
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

.plan-features {
    margin-bottom: var(--space-4);
}

.plan-features li {
    padding: 0.4rem 0;
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.plan-features li::before {
    content: '';
    width: 18px;
    height: 18px;
    border-radius: 50%;
    flex-shrink: 0;
    background: rgba(24,169,87,0.1) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%2318A957' d='M6.5 11.5L3 8l1-1 2.5 2.5L11 5l1 1z'/%3E%3C/svg%3E") center/16px no-repeat;
}

/* === FAQ === */
.faq-item {
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3) 0;
}

.faq-question {
    font-family: var(--font-brand);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-2);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    padding: 0;
}

.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-bg-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform var(--duration-base) var(--ease-out), background var(--duration-base);
}

.faq-icon svg {
    width: 14px;
    height: 14px;
    stroke: var(--color-text-secondary);
    stroke-width: 2;
    fill: none;
}

.faq-item[open] .faq-icon {
    transform: rotate(45deg);
    background: var(--gauss-ink-900);
}

.faq-item[open] .faq-icon svg {
    stroke: var(--gauss-white);
}

.faq-answer {
    overflow: hidden;
    max-height: 0;
    transition: max-height var(--duration-base) var(--ease-out);
}

.faq-item.open .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding-top: var(--space-2);
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* === Stats === */
.stat-number {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--whatsapp-green);
    font-family: var(--font-brand);
    line-height: 1;
}

.stat-label {
    font-size: var(--text-sm);
    color: rgba(255,255,255,0.5);
    margin-top: 0.5rem;
}

/* === Trust Signals === */
.trust-signals {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-top: var(--space-4);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-sm);
    opacity: 0.7;
}

.trust-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* === Quote === */
.quote-mark {
    font-size: 4rem;
    color: var(--color-border);
    line-height: 1;
    margin-bottom: var(--space-2);
    font-family: Georgia, serif;
}

.quote-text {
    font-size: 1.35rem;
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: var(--space-3);
}

.quote-author {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

/* === Breadcrumbs === */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--duration-fast);
}

.breadcrumb a:hover {
    color: var(--color-primary-hover);
}

.breadcrumb span {
    opacity: 0.4;
}

/* === Cookie Consent Banner === */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: var(--gauss-white);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 24px rgba(11,18,32,0.12);
    padding: var(--space-3) var(--space-4);
    transform: translateY(100%);
    transition: transform var(--duration-slow) var(--ease-out);
}

.cookie-banner.is-visible {
    transform: translateY(0);
}

.cookie-banner__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.cookie-banner__text {
    flex: 1;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.cookie-banner__text a {
    color: var(--color-primary);
    text-decoration: underline;
}

.cookie-banner__actions {
    display: flex;
    gap: var(--space-1);
    flex-shrink: 0;
}

.cookie-banner__actions .btn {
    font-size: var(--text-sm);
    padding: 0.5rem 1.25rem;
}

@media (max-width: 768px) {
    .cookie-banner__inner {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
    }

    .cookie-banner__actions {
        justify-content: stretch;
    }

    .cookie-banner__actions .btn {
        flex: 1;
        justify-content: center;
    }
}