/* ============================================================
   Footer
   ============================================================ */

.footer {
    background: var(--color-primary);
    color: var(--color-bg-primary);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.footer-brand {
    margin-bottom: var(--space-xl);
}

.footer-logo {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
}

.footer-logo-img {
    height: 78px;
    width: auto;
    display: block;
    margin-bottom: 6px;
}

.footer-tagline {
    color: var(--color-text-secondary);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-col h4 {
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.footer-col a {
    display: block;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.footer-col a:hover {
    color: var(--color-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--space-lg);
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* ============================================================
   Botones
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: 0 2px 8px rgba(0, 144, 217, 0.25);
}

.btn-primary:hover {
    background: var(--color-accent-light);
    box-shadow: 0 4px 14px rgba(0, 173, 239, 0.35);
    color: var(--color-white);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-secondary);
    border: 2px solid var(--color-secondary);
}

.btn-secondary:hover {
    background: var(--color-secondary);
    color: var(--color-white);
    border-color: var(--color-secondary);
}

/* Botón navy — para acciones de confianza/estructura */
.btn-navy {
    background: var(--color-primary);
    color: var(--color-white);
}
.btn-navy:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.btn-danger {
    background: var(--color-error);
    color: var(--color-white);
}

.btn-success {
    background: var(--color-success);
    color: var(--color-white);
}

.btn-sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* === Variantes additive SPEC007 === */

.btn:focus-visible {
    outline: 3px solid rgba(0,144,217,.45);
    outline-offset: 2px;
}

/* Tier 3 — ghost */
.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border: 2px solid transparent;
}
.btn-ghost:hover {
    background: var(--color-bg-secondary);
    color: var(--color-primary);
    border-color: var(--color-border);
}

/* Fondos oscuros */
.btn-white {
    background: #fff;
    color: var(--color-primary);
    border: 2px solid #fff;
    font-weight: 700;
}
.btn-white:hover { background: rgba(255,255,255,.88); color: var(--color-primary); }

.btn-ghost-white {
    background: rgba(255,255,255,.12);
    color: #fff;
    border: 2px solid rgba(255,255,255,.3);
}
.btn-ghost-white:hover { background: rgba(255,255,255,.22); color: #fff; }

/* Icono solo */
.btn-icon {
    padding: 0;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
}
.btn-icon.btn-sm { width: 30px; height: 30px; }
.btn-icon.btn-lg { width: 46px; height: 46px; }

/* ============================================================
   Formularios
   ============================================================ */

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-secondary);
}

.form-error {
    color: var(--color-error);
    font-size: 0.875rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 45%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: var(--space-3xl) var(--space-md);
    text-align: center;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--space-xl);
    opacity: 0.9;
}

/* ============================================================
   Grids
   ============================================================ */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--space-lg);
}