/**
 * Txiki Librería/Papelería
 * Componentes Reutilizables
 */

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(240, 231, 213, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(33, 40, 66, 0.08);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(240, 231, 213, 0.97);
    box-shadow: var(--shadow-md);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.navbar-logo-text {
    font-family: var(--font-serif);
    font-size: var(--fs-xl);
    font-weight: 600;
    font-style: italic;
    color: var(--midnight-indigo);
    letter-spacing: -0.02em;
}

.navbar-logo-img {
    height: 44px;
    width: auto;
    display: block;
    object-fit: contain;
}

.navbar-nav {
    display: none;
    align-items: center;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .navbar-nav {
        display: flex;
    }
}

.navbar-link {
    font-size: var(--fs-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    transition: var(--transition-fast);
    position: relative;
}

.navbar-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--midnight-indigo);
    transition: var(--transition-base);
}

.navbar-link:hover {
    color: var(--midnight-indigo);
}

.navbar-link:hover::after {
    width: 100%;
}

/* ========================================
   BOTONES
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-serif);
    font-size: var(--fs-base);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-elegant);
    text-decoration: none;
}

.btn-primary {
    background: var(--midnight-indigo);
    color: var(--vanilla-cream);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--yale-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--midnight-indigo);
    border: 1px solid rgba(33, 40, 66, 0.2);
}

.btn-secondary:hover {
    background: rgba(33, 40, 66, 0.05);
    border-color: var(--midnight-indigo);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--fs-lg);
}

/* ========================================
   TARJETAS CON ARCO (ARCH CARDS)
   ======================================== */
.arch-card {
    position: relative;
    background: var(--vanilla-cream);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-elegant);
    box-shadow: var(--shadow-sm);
}

.arch-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

/* Contenedor de imagen con arco */
.arch-frame {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--accent-gold);
}

/* Marco arqueado usando clip-path */
.arch-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    clip-path: inset(0 0 0 0 round 50% 50% 0 0 / 30% 30% 0 0);
    z-index: 1;
    pointer-events: none;
}

/* Imagen dentro del marco arqueado */
.arch-frame-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.arch-card:hover .arch-frame-img {
    transform: scale(1.05);
}

/* Marco decorativo con borde */
.arch-frame-border {
    position: relative;
    padding: var(--space-3);
    background: var(--vanilla-cream);
}

.arch-frame-border .arch-frame-inner {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    border: 2px solid var(--midnight-indigo);
    border-radius: 100px 100px 0 0;
}

.arch-frame-border .arch-frame-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Contenido de la tarjeta */
.arch-card-content {
    padding: var(--space-5);
}

.arch-card-title {
    font-family: var(--font-serif);
    font-size: var(--fs-xl);
    font-weight: 500;
    color: var(--midnight-indigo);
    margin-bottom: var(--space-2);
}

.arch-card-subtitle {
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

/* ========================================
   TARJETA ESTILO VENTANA
   ======================================== */
.window-card {
    position: relative;
    background: var(--vanilla-cream);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-elegant);
}

.window-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.window-frame {
    position: relative;
    border: 2px solid var(--midnight-indigo);
    border-radius: 80px 80px 0 0;
    overflow: hidden;
    aspect-ratio: 3/4;
}

.window-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.window-card:hover .window-frame img {
    transform: scale(1.08);
}

.window-card-content {
    padding: var(--space-4) var(--space-2);
    text-align: center;
}

.window-card-title {
    font-family: var(--font-serif);
    font-size: var(--fs-lg);
    font-style: italic;
    color: var(--midnight-indigo);
    margin-bottom: var(--space-1);
}

.window-card-text {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    margin-bottom: 0;
}

/* ========================================
   TARJETA OSCURA (FONDO INDIGO)
   ======================================== */
.card-dark {
    background: var(--midnight-indigo);
    color: var(--vanilla-cream);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.card-dark::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(244, 235, 220, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.card-dark h3,
.card-dark h4 {
    color: var(--vanilla-cream);
    font-style: italic;
}

.card-dark p {
    color: var(--text-muted-light);
}

/* ========================================
   ICONOS DECORATIVOS - ESTRELLAS
   ======================================== */
.star-icon {
    display: inline-block;
    width: 24px;
    height: 24px;
    position: relative;
}

.star-icon::before,
.star-icon::after {
    content: '';
    position: absolute;
    background: currentColor;
}

.star-icon::before {
    width: 100%;
    height: 2px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.star-icon::after {
    width: 2px;
    height: 100%;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
}

/* Estrella de 4 puntas con SVG inline */
.star-4 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.star-4 svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* ========================================
   SEPARADOR DECORATIVO
   ======================================== */
.divider {
    width: 60px;
    height: 1px;
    background: var(--midnight-indigo);
    margin: var(--space-6) auto;
}

.divider-gold {
    background: var(--lemon-chiffon);
}

.divider-light {
    background: rgba(240, 231, 213, 0.3);
}

/* ========================================
   BADGE / ETIQUETA
   ======================================== */
.badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    font-size: var(--fs-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-full);
    background: var(--midnight-indigo);
    color: var(--vanilla-cream);
}

.badge-outline {
    background: transparent;
    border: 1px solid currentColor;
    color: var(--midnight-indigo);
}

/* ========================================
   MENÚ MÓVIL
   ======================================== */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--midnight-indigo);
    transition: var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--vanilla-cream);
    padding: var(--space-6);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: var(--z-fixed);
    box-shadow: var(--shadow-lg);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.mobile-menu-link {
    font-family: var(--font-serif);
    font-size: var(--fs-xl);
    font-style: italic;
    color: var(--midnight-indigo);
    padding: var(--space-2) 0;
    border-bottom: 1px solid rgba(33, 40, 66, 0.1);
}

/* ========================================
   BOOK COVER CON FONDO BORROSO
   ======================================== */
.book-cover-container {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    border-radius: 80px 80px 0 0;
    background: var(--soft-tan);
}

/* Fondo borroso de la portada */
.book-cover-blur {
    position: absolute;
    inset: -20px;
    background-size: cover;
    background-position: center;
    filter: blur(20px);
    opacity: 0.6;
    transform: scale(1.1);
}

/* Imagen de portada centrada */
.book-cover-img {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--space-4);
    transition: transform var(--transition-slow);
}

.arch-card:hover .book-cover-img {
    transform: scale(1.05);
}

/* ========================================
   SERVICIOS DE ENVÍO
   ======================================== */
.services-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
    padding: var(--space-6) 0;
}

.service-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    background: var(--vanilla-cream);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-elegant);
}

.service-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--soft-tan);
    border-radius: 50%;
    border: 1px solid rgba(33, 40, 66, 0.08);
    color: var(--midnight-indigo);
}

.service-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--midnight-indigo);
}

.service-content {
    flex: 1;
}

.service-title {
    font-family: var(--font-serif);
    font-size: var(--fs-base);
    font-weight: 600;
    color: var(--midnight-indigo);
    margin-bottom: var(--space-1);
}

.service-text {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    margin: 0;
    line-height: 1.4;
}

/* ========================================
   FAQ ACCORDION
   ======================================== */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--vanilla-cream);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-3);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-elegant);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-serif);
    font-size: var(--fs-lg);
    font-weight: 500;
    color: var(--midnight-indigo);
    transition: var(--transition-fast);
}

.faq-question:hover {
    color: var(--yale-blue);
}

.faq-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base), padding var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-inner {
    padding: 0 var(--space-6) var(--space-5);
    color: var(--text-muted);
    line-height: 1.8;
}

/* ========================================
   INSTAGRAM FEED
   ======================================== */
.instagram-feed {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

@media (min-width: 640px) {
    .instagram-feed {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .instagram-feed {
        grid-template-columns: repeat(6, 1fr);
    }
}

.instagram-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: var(--radius-md);
    cursor: pointer;
}

.instagram-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.instagram-item:hover img {
    transform: scale(1.1);
}

.instagram-overlay {
    position: absolute;
    inset: 0;
    background: rgba(33, 40, 66, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.instagram-item:hover .instagram-overlay {
    opacity: 1;
}

.instagram-overlay svg {
    width: 32px;
    height: 32px;
    color: var(--vanilla-cream);
}

.instagram-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-6);
}

.instagram-handle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-serif);
    font-size: var(--fs-lg);
    font-style: italic;
    color: var(--midnight-indigo);
    transition: color var(--transition-fast);
}

.instagram-handle:hover {
    color: var(--yale-blue);
}

.instagram-handle svg {
    width: 24px;
    height: 24px;
}

/* ========================================
   TABS NAVIGATION
   ======================================== */
.tabs-nav {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
}

.tab-btn {
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-serif);
    font-size: var(--fs-base);
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-elegant);
}

.tab-btn:hover {
    color: var(--midnight-indigo);
    background: rgba(33, 40, 66, 0.05);
}

.tab-btn.active {
    color: var(--vanilla-cream);
    background: var(--midnight-indigo);
    border-color: var(--midnight-indigo);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

/* ========================================
   FORMULARIOS
   ======================================== */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    margin-bottom: var(--space-1);
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--midnight-indigo);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid rgba(33, 40, 66, 0.2);
    border-radius: var(--radius-md);
    background: var(--vanilla-cream);
    transition: border-color var(--transition-fast);
    font-family: var(--font-sans);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--midnight-indigo);
    box-shadow: 0 0 0 3px rgba(33, 40, 66, 0.1);
}

.form-message {
    padding: var(--space-3);
    border-radius: var(--radius-md);
    margin-top: var(--space-4);
    font-size: var(--fs-sm);
    display: none;
    text-align: center;
}

.form-message.success {
    background-color: rgba(72, 187, 120, 0.1);
    color: #2f855a;
    display: block;
}

.form-message.error {
    background-color: rgba(245, 101, 101, 0.1);
    color: #c53030;
    display: block;
}