/* ============================================
   Wedding Website - Estilos
   Mobile First - Una sola página con scroll
   v3: Acompañantes dinámicos, responsive PC, accesibilidad
   ============================================ */

/* 1. VARIABLES */
:root {
    --color-burgundy: #7B2D3A;
    --color-burgundy-dark: #5C1F2A;
    --color-burgundy-light: #9A3F4D;
    --color-cream: #FAF6EC;
    --color-cream-dark: #F1ECDF;
    --color-cream-light: #FDFBF6;
    --color-sand: #C5AE7A;
    --color-ink: #3A382D;
    --color-ink-light: #5E5847;
    --color-olive: #5B6742;
    --color-olive-light: #A8B295;
    --color-blush: #E8D5D0;
    --color-white: #FFFFFF;
    --color-error: #C0392B;
    --color-error-bg: #FCE4E4;
    --color-success: #5B6742;
    --color-success-bg: #E8F0E0;
    --color-overlay: rgba(58, 56, 45, 0.5);

    --font-heading: 'Italiana', 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;

    --sp-xs: 0.5rem;
    --sp-sm: 0.75rem;
    --sp-md: 1rem;
    --sp-lg: 1.5rem;
    --sp-xl: 2rem;
    --sp-2xl: 3rem;
    --sp-3xl: 4rem;

    --r-sm: 8px;
    --r-md: 12px;
    --r-lg: 16px;
    --r-xl: 24px;
    --r-pill: 999px;

    --shadow-sm: 0 2px 4px rgba(58, 56, 45, 0.06);
    --shadow-md: 0 4px 12px rgba(58, 56, 45, 0.08);
    --shadow-lg: 0 8px 24px rgba(58, 56, 45, 0.12);

    --app-max-width: 100%;
    --header-h: 56px;
    --transition: 200ms ease;
    --transition-slow: 400ms ease;
}

/* 2. RESET Y BASE */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--color-ink);
    background: #EBE4D4;
    min-height: 100vh;
    overflow-x: hidden;
}

img, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-burgundy);
    text-decoration: none;
    transition: var(--transition);
}

a:hover { color: var(--color-burgundy-dark); }

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

input, select, textarea {
    font: inherit;
    color: inherit;
}

fieldset {
    border: 0;
    padding: 0;
    margin: 0;
}

legend {
    display: block;
    width: 100%;
    padding: 0;
    margin-bottom: var(--sp-md);
}

/* 3. ACCESIBILIDAD */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

*:focus-visible {
    outline: 2px solid var(--color-burgundy);
    outline-offset: 2px;
    border-radius: 2px;
}

button:focus-visible,
.toggle-btn:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--color-burgundy-light);
    outline-offset: 3px;
}

/* 4. TIPOGRAFIA */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 400;
    color: var(--color-burgundy);
    font-style: italic;
    line-height: 1.15;
    letter-spacing: 0.02em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: var(--sp-sm); }

/* 5. APP SHELL */
.app {
    max-width: var(--app-max-width);
    margin: 0 auto;
    width: 100%;
    min-height: 100vh;
    background: var(--color-cream);
    position: relative;
    overflow: hidden;
}

/* 6. HEADER */
.app-header {
    position: sticky;
    top: 0;
    height: var(--header-h);
    background: var(--color-burgundy);
    color: var(--color-cream);
    display: flex;
    align-items: center;
    padding: 0 var(--sp-md);
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.app-header__title {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.3rem;
    color: var(--color-cream);
    margin: 0 auto;
    padding-left: 32px;
    text-align: center;
}

.hamburger {
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    color: var(--color-cream);
    position: absolute;
    left: var(--sp-sm);
    top: 50%;
    transform: translateY(-50%);
    padding: 0;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: var(--transition);
}

.hamburger.is-open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* 7. SIDE MENU */
.side-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    max-width: 85vw;
    height: 100vh;
    background: var(--color-cream);
    z-index: 200;
    transform: translateX(-100%);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.side-menu.open { transform: translateX(0); }

.side-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-md) var(--sp-lg);
    background: var(--color-burgundy);
    color: var(--color-cream);
    flex-shrink: 0;
}

.side-menu__title {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.4rem;
    color: var(--color-cream);
    margin: 0;
}

.side-menu__close {
    color: var(--color-cream);
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.side-menu__close:hover { background: rgba(255, 255, 255, 0.15); }

.side-menu__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    padding: var(--sp-md) 0;
    flex: 1;
}

.side-menu__link {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    padding: 14px var(--sp-lg);
    color: var(--color-ink);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.side-menu__link:hover,
.side-menu__link:focus {
    color: var(--color-burgundy);
    background: var(--color-cream-dark);
    border-left-color: var(--color-burgundy);
}

.side-menu__link svg {
    width: 18px;
    height: 18px;
    color: var(--color-burgundy);
    flex-shrink: 0;
}

.side-menu__divider {
    height: 1px;
    background: var(--color-cream-dark);
    margin: var(--sp-sm) var(--sp-lg);
}

.side-menu__overlay {
    position: fixed;
    inset: 0;
    background: var(--color-overlay);
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.side-menu__overlay.open {
    opacity: 1;
    pointer-events: auto;
}

/* 8. PAGE / SECTIONS */
.page { position: relative; }

.section {
    padding: var(--sp-2xl) var(--sp-md);
    scroll-margin-top: calc(var(--header-h) + 16px);
}

.section[hidden] { display: none; }

.section__title {
    text-align: center;
    margin-bottom: var(--sp-sm);
    font-size: 2.2rem;
}

.subsection__title {
    text-align: center;
    color: var(--color-burgundy);
    margin: var(--sp-xl) 0 var(--sp-md);
    font-size: 1.5rem;
    font-weight: 500;
}

.section__subtitle {
    text-align: center;
    color: var(--color-ink-light);
    margin-bottom: var(--sp-xl);
    letter-spacing: 0.15em;
    font-size: 0.85rem;
    text-transform: uppercase;
}

.section__lead {
    text-align: center;
    color: var(--color-ink-light);
    margin-bottom: var(--sp-lg);
    line-height: 1.6;
}

/* 9. HOME / HERO */
.section--home {
    text-align: center;
    padding-top: var(--sp-xl);
    padding-bottom: var(--sp-3xl);
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-cream-dark) 100%);
}

.welcome__title {
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--color-burgundy);
    font-size: 3rem;
    line-height: 1;
    margin-bottom: var(--sp-sm);
}

.welcome__title .amp { font-size: 0.7em; opacity: 0.7; }

.welcome__illustration {
    width: 100%;
    max-width: 360px;
    margin: 0 auto var(--sp-lg);
    border-radius: var(--r-lg);
}

.welcome__date {
    font-size: 1.1rem;
    letter-spacing: 0.3em;
    color: var(--color-ink);
    margin: var(--sp-sm) 0 var(--sp-xs);
    font-weight: 500;
}

.welcome__location {
    color: var(--color-ink-light);
    margin-bottom: var(--sp-lg);
    font-style: italic;
}

/* 10. COUNTDOWN */
.countdown {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--sp-sm);
    margin: var(--sp-lg) 0 var(--sp-xl);
    text-align: center;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.countdown__item {
    background: var(--color-cream-light);
    border-radius: var(--r-md);
    padding: var(--sp-md) var(--sp-xs);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-cream-dark);
}

.countdown__num {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--color-burgundy);
    line-height: 1;
    margin-bottom: var(--sp-xs);
    font-weight: 400;
    font-variant-numeric: tabular-nums;
}

.countdown__label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--color-ink-light);
    text-transform: uppercase;
}

.hero-illustration {
    width: 100%;
    max-width: 380px;
    margin: var(--sp-lg) auto 0;
    border-radius: var(--r-lg);
}

.hero-cta {
    display: inline-flex;
    width: auto;
    min-width: 240px;
    max-width: 320px;
}

/* 11. CARDS */
.card {
    background: var(--color-cream-light);
    border-radius: var(--r-lg);
    padding: var(--sp-lg);
    margin-bottom: var(--sp-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-cream-dark);
}

.card--center { text-align: center; }

.card__title {
    font-size: 1.6rem;
    margin-bottom: var(--sp-xs);
    text-align: center;
}

.card__time {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    color: var(--color-burgundy);
    font-style: italic;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--sp-xs);
}

.card__address {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    text-align: center;
    margin-bottom: var(--sp-md);
    line-height: 1.6;
}

.card__highlight {
    text-align: center;
    color: var(--color-burgundy);
    font-weight: 500;
    font-size: 0.95rem;
    margin: var(--sp-sm) 0;
}

/* Bus info card (versión completa con título y rutas) */
.bus-info-card {
    text-align: left;
    background: var(--color-cream-light);
}

.bus-info-card__head {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    margin-bottom: var(--sp-md);
    padding-bottom: var(--sp-sm);
    border-bottom: 1px solid var(--color-cream-dark);
}

.bus-info-card__title {
    font-size: 1.2rem;
    margin: 0 0 2px 0;
    color: var(--color-burgundy);
    font-style: italic;
}

.bus-info-card__subtitle {
    font-size: 0.85rem;
    color: var(--color-ink-light);
    margin: 0;
    font-style: italic;
}

.bus-info-card__route {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.bus-info-card__city {
    font-weight: 500;
    color: var(--color-ink);
    background: var(--color-cream);
    padding: 4px 10px;
    border-radius: var(--r-pill);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.bus-info-card__city--end {
    background: var(--color-burgundy);
    color: var(--color-cream);
}

.bus-info-card__arrow {
    color: var(--color-burgundy);
    font-size: 1.2rem;
}

.bus-info-card__time {
    font-size: 0.95rem;
    color: var(--color-ink);
    margin: var(--sp-xs) 0 4px 0;
}

.bus-info-card__time strong {
    color: var(--color-burgundy);
}

.bus-info-card__address {
    font-size: 0.85rem;
    color: var(--color-ink-light);
    margin: 0;
    font-style: italic;
}

/* Card grid (2 columnas en tablet+) */
.card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-md);
}

/* 12. BOTONES */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-xs);
    padding: 14px 24px;
    border-radius: var(--r-md);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: var(--transition);
    min-height: 48px;
    width: 100%;
    text-align: center;
    -webkit-tap-highlight-color: transparent;
}

.btn--primary {
    background: var(--color-burgundy);
    color: var(--color-cream);
}

.btn--primary:hover,
.btn--primary:focus { background: var(--color-burgundy-dark); color: var(--color-cream); }

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

.btn--secondary:hover {
    background: var(--color-burgundy);
    color: var(--color-cream);
}

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

.btn--ghost:hover { background: var(--color-cream-dark); }

.btn--add {
    background: transparent;
    color: var(--color-burgundy);
    border: 2px dashed var(--color-burgundy);
    width: 100%;
    margin-top: var(--sp-md);
    text-transform: none;
    letter-spacing: 0;
    font-weight: 500;
}

.btn--add:hover {
    background: var(--color-burgundy);
    color: var(--color-cream);
}

.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn--large {
    padding: 18px 36px;
    min-height: 56px;
    font-size: 1.05rem;
    max-width: 360px;
    margin: 0 auto;
}

/* 13. TIMELINE */
.timeline {
    list-style: none;
    position: relative;
    padding: 0;
    margin: var(--sp-lg) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 68px;
    top: 28px;
    bottom: 28px;
    width: 1px;
    background: var(--color-sand);
    opacity: 0.4;
}

.timeline__item {
    display: grid;
    grid-template-columns: 60px 1fr;
    align-items: center;
    gap: var(--sp-md);
    margin-bottom: var(--sp-xl);
    position: relative;
}

.timeline__item:last-child { margin-bottom: 0; }

.timeline__time {
    font-weight: 600;
    color: var(--color-ink);
    font-size: 0.95rem;
    text-align: right;
}

.timeline__content { line-height: 1.4; }

.timeline__content strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 2px;
    font-weight: 600;
    color: var(--color-ink);
}

.timeline__content span {
    font-size: 0.85rem;
    color: var(--color-ink-light);
    line-height: 1.4;
}

/* 14. FORMULARIO */
.section--rsvp {
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-cream-dark) 100%);
}

.form-group {
    margin-bottom: var(--sp-2xl);
    background: var(--color-cream-light);
    border-radius: var(--r-lg);
    padding: 0 2rem 2rem 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-cream-dark);
    scroll-margin-top: calc(var(--header-h) + 16px);
}

.form-group[hidden] { display: none; }

.form-group--acompanantes {
    background: var(--color-white);
    border: 2px dashed var(--color-blush);
}

.form-legend {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.6rem;
    color: var(--color-burgundy);
    border-bottom: 1px solid var(--color-cream-dark);
    padding: 0 0 var(--sp-sm);
    width: 100%;
    line-height: 1.2;
    text-align: center;
    letter-spacing: 0.02em;
}

.form-field {
    margin-bottom: var(--sp-xl);
    margin-top: var(--sp-lg);
}

.form-legend + .form-field {
    margin-top: 0;
}

.form-field:first-child {
    margin-top: 0;
}

.form-field:last-child { margin-bottom: 0; }
.form-field[hidden] { display: none; }

.form-label {
    display: block;
    margin-bottom: var(--sp-xs);
    font-weight: 500;
    color: var(--color-ink);
    font-size: 0.95rem;
}

.form-label__required { color: var(--color-burgundy); }

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--color-sand);
    border-radius: var(--r-md);
    background: var(--color-white);
    color: var(--color-ink);
    font-size: 1rem;
    transition: var(--transition);
    -webkit-appearance: none;
    appearance: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-burgundy);
    box-shadow: 0 0 0 3px rgba(123, 45, 58, 0.1);
}

.form-input.is-error,
.form-textarea.is-error,
.form-select.is-error {
    border-color: var(--color-error);
    background: var(--color-error-bg);
}

.form-input.is-error:focus,
.form-textarea.is-error:focus,
.form-select.is-error:focus {
    box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.15);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237B2D3A' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
}

.form-error {
    color: var(--color-error);
    font-size: 0.85rem;
    margin-top: 4px;
    display: block;
    font-weight: 500;
}

.form-hint {
    color: var(--color-ink-light);
    font-size: 0.8rem;
    margin-top: 4px;
    display: block;
    font-style: italic;
}

.form-hint--inline { display: inline; margin: 0; }

.form-field--divider {
    margin-top: var(--sp-xl);
    padding-top: var(--sp-md);
    border-top: 1px solid var(--color-cream-dark);
}

.form-consent {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-sm);
    padding: var(--sp-md);
    background: var(--color-cream-dark);
    border-radius: var(--r-md);
    margin-top: var(--sp-md);
    font-size: 0.85rem;
    line-height: 1.5;
}

.form-consent input[type="checkbox"] {
    margin-top: 4px;
    accent-color: var(--color-burgundy);
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.form-consent--inline { margin-top: 0; }

.inline-checkbox { display: flex; align-items: center; gap: 6px; }

.acompanante-card__input--nested { margin-top: 6px; }

.form-consent label { cursor: pointer; color: var(--color-ink); }
.form-consent a { color: var(--color-burgundy); text-decoration: underline; }

/* Toggle buttons (Sí/No) */
.toggle-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-sm);
}

.toggle-btn {
    padding: 14px 12px;
    border: 1.5px solid var(--color-sand);
    border-radius: var(--r-md);
    background: var(--color-white);
    color: var(--color-ink);
    font-weight: 500;
    font-size: 0.9rem;
    text-align: center;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    -webkit-tap-highlight-color: transparent;
}

.toggle-btn:hover { border-color: var(--color-burgundy); }

.toggle-btn.is-active {
    background: var(--color-burgundy);
    color: var(--color-cream);
    border-color: var(--color-burgundy);
}

/* Radio cards (menú principal) */
.radio-cards {
    display: flex;
    flex-direction: column;
    gap: var(--sp-sm);
}

.radio-card {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    padding: var(--sp-md);
    border: 1.5px solid var(--color-sand);
    border-radius: var(--r-md);
    background: var(--color-white);
    cursor: pointer;
    transition: var(--transition);
}

.radio-card:hover { border-color: var(--color-burgundy-light); }

.radio-card:has(input:checked) {
    border-color: var(--color-burgundy);
    background: var(--color-cream);
    box-shadow: var(--shadow-sm);
}

.radio-card input[type="radio"] {
    accent-color: var(--color-burgundy);
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.radio-card__icon {
    color: var(--color-burgundy);
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.radio-card__icon img,
.radio-card__icon svg {
    width: 100%;
    height: 100%;
}

.radio-card__label { font-size: 0.95rem; color: var(--color-ink); }

/* 16. ACOMPAÑANTES DINÁMICOS */
.acompanantes-wrapper { margin-top: var(--sp-md); }

.acompanantes-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-sm);
    margin-bottom: var(--sp-sm);
}

.acompanante-card {
    background: var(--color-white);
    border: 1.5px solid var(--color-sand);
    border-radius: var(--r-md);
    padding: var(--sp-md);
    position: relative;
    transition: var(--transition);
    animation: slideInDown 300ms ease;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.acompanante-card:focus-within {
    border-color: var(--color-burgundy);
    box-shadow: 0 0 0 3px rgba(123, 45, 58, 0.08);
}

.acompanante-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--sp-sm);
    padding-bottom: var(--sp-xs);
    border-bottom: 1px solid var(--color-cream-dark);
}

.acompanante-card__title {
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--color-burgundy);
    font-size: 1.15rem;
}

.acompanante-card__remove {
    color: var(--color-ink-light);
    padding: 6px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    background: transparent;
}

.acompanante-card__remove:hover {
    color: var(--color-error);
    background: var(--color-error-bg);
}

.acompanante-card__field { margin-bottom: var(--sp-sm); }
.acompanante-card__field:last-child { margin-bottom: 0; }

.acompanante-card__label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-ink-light);
    margin-bottom: 4px;
    font-weight: 500;
}

.acompanante-card__input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--color-cream-dark);
    border-radius: var(--r-sm);
    background: var(--color-cream-light);
    color: var(--color-ink);
    font-size: 0.95rem;
    transition: var(--transition);
}

.acompanante-card__input:focus {
    outline: none;
    border-color: var(--color-burgundy);
    background: var(--color-white);
}

.acompanante-card__menu {
    display: flex;
    gap: var(--sp-xs);
    flex-wrap: wrap;
}

.acompanante-card__menu label {
    flex: 1;
    min-width: 80px;
    padding: 8px 10px;
    border: 1.5px solid var(--color-cream-dark);
    border-radius: var(--r-sm);
    text-align: center;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    background: var(--color-cream-light);
    color: var(--color-ink);
}

.acompanante-card__menu label:hover {
    border-color: var(--color-burgundy);
}

.acompanante-card__menu label:has(input:checked) {
    background: var(--color-burgundy);
    color: var(--color-cream);
    border-color: var(--color-burgundy);
}

.acompanante-card__menu input { display: none; }

.acompanante-card__intolerancia {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-xs);
    margin-bottom: var(--sp-xs);
}

.acompanante-card__intolerancia button {
    padding: 8px;
    border: 1.5px solid var(--color-cream-dark);
    border-radius: var(--r-sm);
    background: var(--color-cream-light);
    color: var(--color-ink);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

.acompanante-card__intolerancia button:hover {
    border-color: var(--color-burgundy);
}

.acompanante-card__intolerancia button.is-active {
    background: var(--color-burgundy);
    color: var(--color-cream);
    border-color: var(--color-burgundy);
}

/* 17. ALERTAS */
.alert {
    padding: var(--sp-md);
    border-radius: var(--r-md);
    margin-bottom: var(--sp-lg);
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-line;
    font-weight: 500;
}

.alert--error {
    background: var(--color-error-bg);
    color: var(--color-error);
    border-left: 4px solid var(--color-error);
}

.alert--success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border-left: 4px solid var(--color-success);
}

.alert[hidden] { display: none; }

/* 19. GRACIAS */
.section--thanks {
    text-align: center;
    padding-top: var(--sp-3xl);
    padding-bottom: var(--sp-3xl);
}

.thanks__heart {
    color: var(--color-burgundy);
    font-size: 1.5rem;
    margin: var(--sp-md) 0;
    display: inline-block;
    animation: heartbeat 1.5s ease-in-out infinite;
}

.thanks__msg {
    margin-top: var(--sp-lg);
    color: var(--color-ink-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.thanks__signature {
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--color-burgundy);
    font-size: 1.5rem;
    margin-top: var(--sp-lg);
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    25% { transform: scale(1.15); }
    50% { transform: scale(1); }
    75% { transform: scale(1.1); }
}

/* 20. UTILIDADES */
.text-center { text-align: center; }
.text-muted-small { font-size: 0.85rem; color: var(--color-ink-light); line-height: 1.5; }
.text-xsmall-muted { font-size: 0.8rem; color: var(--color-ink-light); }
.mt-md { margin-top: var(--sp-md); }
.mt-lg { margin-top: var(--sp-lg); }
.mt-2xl { margin-top: var(--sp-2xl); }
.mb-sm { margin-bottom: var(--sp-sm); }
.mb-md { margin-bottom: var(--sp-md); }
.mb-lg { margin-bottom: var(--sp-lg); }

.container { max-width: 720px; margin-left: auto; margin-right: auto; padding: 0 var(--sp-md); }

.icon-inline { display: inline-block; vertical-align: middle; margin-right: 4px; }
.icon-inline--md { margin-right: 6px; }

.card--featured { grid-column: 1 / -1; }
.card--featured .card__title { font-size: 1.6rem; }
.card--featured .card__address { font-size: 1rem; line-height: 1.7; }
.card--featured .btn { margin-top: var(--sp-md); }



/* 21. BOTÓN VOLVER ARRIBA */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    background: var(--color-burgundy);
    color: var(--color-cream);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 50;
}

.back-to-top.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-burgundy-dark);
    color: var(--color-cream);
    transform: translateY(-2px);
}

/* 22. SITE FOOTER */
.site-footer {
    text-align: center;
    padding: var(--sp-2xl) var(--sp-md);
    color: var(--color-ink-light);
    font-size: 0.85rem;
    background: var(--color-cream);
}

.site-footer p { margin-bottom: var(--sp-xs); }
.site-footer__legal { margin-top: var(--sp-sm); font-size: 0.75rem; }
.site-footer__legal a { color: var(--color-ink-light); text-decoration: underline; }


/* 23. PRIVACIDAD */
.legal-content { max-width: 800px; margin: 0 auto; line-height: 1.7; }
.legal-content h2 { margin-top: var(--sp-xl); margin-bottom: var(--sp-md); font-size: 1.5rem; text-align: left; }
.legal-content h3 { margin-top: var(--sp-lg); margin-bottom: var(--sp-sm); font-size: 1.2rem; text-align: left; }
.legal-content ul { margin-left: var(--sp-lg); margin-bottom: var(--sp-md); }
.legal-content li { margin-bottom: var(--sp-xs); }
.legal-content a { color: var(--color-burgundy); text-decoration: underline; }

/* 24. ADMIN */
.admin-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--sp-lg);
    min-height: 100vh;
    background: var(--color-cream);
}

.admin-header {
    background: var(--color-burgundy);
    color: var(--color-cream);
    padding: var(--sp-md) var(--sp-lg);
    border-radius: var(--r-md);
    margin-bottom: var(--sp-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--sp-sm);
}

.admin-header h1 {
    color: var(--color-cream);
    font-size: 1.5rem;
    margin: 0;
    font-style: normal;
}

.admin-nav {
    display: flex;
    gap: var(--sp-sm);
    flex-wrap: wrap;
}

.admin-nav a {
    color: var(--color-cream);
    padding: 6px 14px;
    border-radius: var(--r-pill);
    font-size: 0.85rem;
    border: 1px solid rgba(248, 243, 232, 0.3);
    transition: var(--transition);
}

.admin-nav a:hover { background: rgba(248, 243, 232, 0.15); color: var(--color-cream); }

.admin-nav__link--button {
    color: var(--color-cream);
    padding: 6px 14px;
    border-radius: var(--r-pill);
    font-size: 0.85rem;
    border: 1px solid rgba(248, 243, 232, 0.3);
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.admin-nav__link--button:hover { background: rgba(248, 243, 232, 0.15); color: var(--color-cream); }

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--sp-md);
    margin-bottom: var(--sp-lg);
}

.admin-stat {
    background: var(--color-cream-light);
    padding: var(--sp-md);
    border-radius: var(--r-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-cream-dark);
}

.admin-stat__value {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-burgundy);
    line-height: 1;
    margin-bottom: var(--sp-xs);
    font-variant-numeric: tabular-nums;
}

.admin-stat__label {
    font-size: 0.8rem;
    color: var(--color-ink-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-cream-light);
    border-radius: var(--r-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.admin-table th,
.admin-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--color-cream-dark);
    font-size: 0.9rem;
    vertical-align: top;
}

.admin-table th {
    background: var(--color-burgundy);
    color: var(--color-cream);
    font-weight: 500;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-style: normal;
}

.admin-table tr:last-child td { border-bottom: 0; }
.admin-table tr:hover { background: var(--color-cream); }
.admin-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Admin: filas de acciones, mensajes, utilidades */
.form-actions {
    display: flex;
    gap: var(--sp-sm);
    flex-wrap: wrap;
    margin-top: var(--sp-lg);
}
.form-actions > .btn { flex: 1; min-width: 200px; }
.form-actions > .btn--ghost { flex: 0 0 auto; min-width: 120px; }

.text-error-small { color: var(--color-error); font-size: 0.8rem; }
.text-error-block { color: var(--color-error); font-size: 0.85rem; }
.text-error-bg {
    background: var(--color-error);
    color: var(--color-cream);
}
.list-reset { list-style: none; margin: 0; padding: 0; }
.text-soft-muted { color: var(--color-ink-light); }
.table-empty {
    text-align: center;
    padding: 2rem;
    color: var(--color-ink-light);
}
.admin-h2 {
    font-size: 1.3rem;
    margin-bottom: var(--sp-md);
    font-style: italic;
    color: var(--color-burgundy);
}
.admin-h2--top { margin-top: var(--sp-xl); }

.legal-container { max-width: 800px; margin: 0 auto; }
.legal-container p { color: var(--color-ink); }
.legal-container h1, .legal-container h2, .legal-container h3 { color: var(--color-burgundy); }

details > summary.form-hint-toggle {
    cursor: pointer;
    color: var(--color-burgundy);
    font-weight: 500;
    list-style: none;
}
details > summary.form-hint-toggle::-webkit-details-marker { display: none; }

.mt-sm-sm { margin-top: 6px; }
.table-cell-wrap { max-width: 200px; word-wrap: break-word; }
.table-cell-wrap--small { font-size: 0.85rem; }
.table-cell-nowrap { white-space: nowrap; font-size: 0.8rem; }
.action-stack { display: flex; flex-direction: column; gap: 2px; align-items: flex-start; }

.rsvp-fallback { max-width: 500px; margin: 0 auto; }

.admin-table details summary {
    cursor: pointer;
    color: var(--color-burgundy);
    font-weight: 500;
    font-size: 0.85rem;
    list-style: none;
}

.admin-table details summary::-webkit-details-marker { display: none; }
.admin-table details summary::before {
    content: '▸ ';
    display: inline-block;
    transition: var(--transition);
}

.admin-table details[open] summary::before { content: '▾ '; }

.admin-table details > div {
    margin-top: var(--sp-xs);
    padding: var(--sp-xs) 0 0 var(--sp-md);
    border-left: 2px solid var(--color-blush);
    font-size: 0.85rem;
}

.admin-table details > div > div { margin-bottom: var(--sp-xs); }
.admin-table details > div strong { color: var(--color-burgundy); }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--r-pill);
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

.badge--success { background: #D4E4C9; color: var(--color-success); }
.badge--error { background: #F5D6D3; color: var(--color-error); }
.badge--info { background: var(--color-blush); color: var(--color-burgundy); }

.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: var(--sp-md); }

.filter-bar a {
    padding: 6px 14px;
    border-radius: var(--r-pill);
    background: var(--color-cream-light);
    color: var(--color-ink);
    font-size: 0.85rem;
    border: 1px solid var(--color-sand);
    transition: var(--transition);
}

.filter-bar a:hover { border-color: var(--color-burgundy); color: var(--color-ink); }
.filter-bar a.is-active { background: var(--color-burgundy); color: var(--color-cream); border-color: var(--color-burgundy); }

.action-buttons { display: flex; gap: var(--sp-xs); flex-wrap: wrap; }

.action-buttons a,
.action-buttons button {
    padding: 6px 12px;
    border-radius: var(--r-sm);
    font-size: 0.8rem;
    text-decoration: none;
    border: 1px solid var(--color-sand);
    background: var(--color-cream-light);
    color: var(--color-ink);
    transition: var(--transition);
    cursor: pointer;
}

.action-buttons a:hover,
.action-buttons button:hover {
    border-color: var(--color-burgundy);
    color: var(--color-burgundy);
}

.action-buttons .btn--danger {
    border-color: var(--color-error);
    color: var(--color-error);
}

.action-buttons .btn--danger:hover {
    background: var(--color-error);
    color: var(--color-cream);
}

/* Login */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sp-lg);
    background: linear-gradient(135deg, #EBE4D4 0%, #F1ECDF 100%);
}

.login-card {
    background: var(--color-cream-light);
    padding: var(--sp-2xl) var(--sp-xl);
    border-radius: var(--r-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--color-cream-dark);
}

.login-card h1 {
    text-align: center;
    margin-bottom: var(--sp-md);
    font-size: 1.6rem;
    color: var(--color-burgundy);
    font-style: italic;
}

.login-card form {
    margin-top: var(--sp-md);
}

/* 25. RESPONSIVE - TABLET 768px+ */

@media (min-width: 768px) {
    :root {
        --header-h: 60px;
    }

    body { font-size: 1.05rem; }

    h1 { font-size: 2.8rem; }
    h2 { font-size: 2.4rem; }
    h3 { font-size: 1.7rem; }

    .section { padding: var(--sp-3xl) var(--sp-xl); }

    .section__title { font-size: 2.6rem; }
    .welcome__title { font-size: 3.5rem; }
    .welcome__illustration { max-width: 420px; }
    .hero-illustration { max-width: 480px; }

    .countdown { gap: var(--sp-md); max-width: 560px; }
    .countdown__num { font-size: 2.8rem; }
    .countdown__label { font-size: 0.8rem; }

    .card-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-lg); }

    .timeline {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--sp-md) var(--sp-2xl);
    }

    .timeline::before { display: none; }

    .timeline__item {
        grid-template-columns: 60px 1fr;
        margin-bottom: 0;
        padding: var(--sp-md);
        background: var(--color-cream-light);
        border-radius: var(--r-md);
        border: 1px solid var(--color-cream-dark);
    }

    .form-legend { font-size: 1.7rem; }

    .app-header { padding: 0 var(--sp-lg); }
    .app-header__title { font-size: 1.5rem; }
}

/* 28. RESPONSIVE - DESKTOP 1024px+ */
@media (min-width: 1024px) {
    :root {
        --app-max-width: 1000px;
        --header-h: 64px;
    }

    body { font-size: 1.1rem; line-height: 1.6; }

    h1 { font-size: 3.2rem; }
    h2 { font-size: 2.8rem; }
    h3 { font-size: 1.9rem; }

    .section { padding: 4rem var(--sp-2xl); }
    .section__title { font-size: 3rem; }

    .section--home { padding-top: 4rem; padding-bottom: 5rem; }

    .welcome__title { font-size: 4rem; }
    .welcome__illustration { max-width: 560px; }
    .hero-illustration { max-width: 600px; }

    .countdown { max-width: 640px; }
    .countdown__num { font-size: 3.4rem; }
    .countdown__label { font-size: 0.85rem; }

    .card { padding: var(--sp-xl); }
    .card__title { font-size: 1.9rem; }

    .timeline { grid-template-columns: 1fr 1fr; gap: var(--sp-lg) var(--sp-3xl); }

    .form-legend { font-size: 2rem; }

    .app-header__title { font-size: 1.7rem; }
    .hamburger { width: 48px; height: 48px; }
    .hamburger span { width: 24px; }

    .side-menu { width: 340px; }
    .side-menu__link { font-size: 1rem; padding: 16px var(--sp-xl); }

    /* Buses: 2 columnas en desktop */
    #buses .bus-info-card + .bus-info-card { margin-top: 0; }

    .section--buses-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--sp-lg);
    }

    /* Descubre Alcalá: 3 columnas; la card destacada sigue siendo full-width */
    #discover .card-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
    #discover .card--featured {
        grid-column: 1 / -1;
    }

    /* Form: radio-cards del menú en 3 columnas */
    .radio-cards {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: var(--sp-sm);
    }

    /* Form-groups no se estiran a 1000px exactos */
    .form-group {
        max-width: 880px;
        margin-left: auto;
        margin-right: auto;
    }
}

/* 29. RESPONSIVE - DESKTOP XL 1280px+ */
@media (min-width: 1280px) {
    body { font-size: 1.15rem; }
    .section { padding: 5rem var(--sp-3xl); }
    .welcome__title { font-size: 4.5rem; }
}

/* 28. MÓVILES MUY PEQUEÑOS */
@media (max-width: 360px) {
    h2 { font-size: 1.7rem; }
    .welcome__title { font-size: 2.5rem; }
    .countdown__num { font-size: 1.7rem; }
    .countdown__label { font-size: 0.6rem; }
    .timeline::before { left: 58px; }
    .timeline__item { grid-template-columns: 50px 1fr; }
}

/* 29. PRINT STYLES */
@media print {
    body { background: white; color: black; }
    .app { box-shadow: none; max-width: 100%; }
    .app-header, .side-menu, .side-menu__overlay, .back-to-top { display: none; }
    .section { padding: 1rem 0; page-break-inside: avoid; }
    .section--rsvp, .form-group { display: none; }
    a { color: black; text-decoration: underline; }
}

/* 30. REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}