/**
 * ============================================================================
 * Este código lleva la huella de Jose Antonio Echevarria – ECH
 * echevarria@megustanlastic.es - 2026-03-21
 * Desarrollo generado para inmoautonomos. No modificar sin permiso.
 * ============================================================================
 */

/* ============================================
   VARIABLES CSS (Tematización dinámica)
   ============================================ */
:root {
    /* Colores corporativos IA */
    --ia-primary: #000064;
    --ia-primary-light: #1A1A8C;
    --ia-primary-dark: #000048;
    --ia-accent: #3D3DB8;
    --ia-accent-light: #5C5CD6;
    --ia-bg-soft: #E8EBF7;
    --ia-bg-softer: #F2F3FB;

    /* Neutros */
    --ia-white: #FFFFFF;
    --ia-gray-50: #FAFAFA;
    --ia-gray-100: #F5F5F5;
    --ia-gray-200: #EEEEEE;
    --ia-gray-300: #DDDDDD;
    --ia-gray-400: #BBBBBB;
    --ia-gray-500: #888888;
    --ia-gray-600: #666666;
    --ia-gray-700: #444444;
    --ia-gray-800: #333333;
    --ia-gray-900: #1A1A1A;

    /* Feedback */
    --ia-success: #0D7A3E;
    --ia-success-bg: #E8F5E9;
    --ia-warning: #E6A817;
    --ia-warning-bg: #FFF8E1;
    --ia-error: #C62828;
    --ia-error-bg: #FFEBEE;
    --ia-info: #1565C0;
    --ia-info-bg: #E3F2FD;

    /* Tipografía */
    --ia-font: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --ia-font-size: 16px;
    --ia-line-height: 1.6;

    /* Espaciado */
    --ia-space-xs: 0.25rem;
    --ia-space-sm: 0.5rem;
    --ia-space-md: 1rem;
    --ia-space-lg: 1.5rem;
    --ia-space-xl: 2rem;
    --ia-space-2xl: 3rem;
    --ia-space-3xl: 4rem;

    /* Layout */
    --ia-max-width: 1280px;
    --ia-sidebar-width: 300px;
    --ia-header-height: 70px;
    --ia-radius: 8px;
    --ia-radius-lg: 12px;
    --ia-shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --ia-shadow: 0 2px 8px rgba(0,0,0,0.1);
    --ia-shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
    --ia-transition: 0.2s ease;
}

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

html {
    font-size: var(--ia-font-size);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--ia-font);
    line-height: var(--ia-line-height);
    color: var(--ia-gray-800);
    background-color: var(--ia-white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--ia-accent);
}

/* ============================================
   TIPOGRAFÍA
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--ia-gray-900);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { margin-bottom: var(--ia-space-md); }

/* ============================================
   LAYOUT - CONTENEDOR
   ============================================ */
.ia-container {
    width: 100%;
    max-width: var(--ia-max-width);
    margin: 0 auto;
    padding: 0 var(--ia-space-md);
}

.ia-main {
    flex: 1;
    padding: var(--ia-space-xl) 0;
}

/* ============================================
   HEADER
   ============================================ */
.ia-header {
    background: var(--ia-white);
    border-bottom: 2px solid var(--ia-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--ia-shadow-sm);
}

.ia-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--ia-header-height);
    gap: var(--ia-space-md);
}

.ia-header__logo img {
    height: 45px;
    width: auto;
}

/* Navegación principal */
.ia-nav {
    display: none;
}

.ia-nav__list {
    display: flex;
    list-style: none;
    gap: var(--ia-space-xs);
}

.ia-nav__link {
    display: block;
    padding: var(--ia-space-sm) var(--ia-space-md);
    color: var(--ia-gray-700);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--ia-radius);
    transition: all var(--ia-transition);
    white-space: nowrap;
}

.ia-nav__link:hover,
.ia-nav__link--active {
    color: var(--ia-primary);
    background: var(--ia-bg-soft);
}

/* Área de usuario en header */
.ia-header__user {
    display: flex;
    align-items: center;
    gap: var(--ia-space-sm);
}

.ia-header__user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--ia-bg-soft);
}

.ia-header__user-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--ia-gray-700);
    display: none;
}

/* Botón hamburguesa */
.ia-hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.ia-hamburger span {
    display: block;
    height: 2px;
    background: var(--ia-primary);
    border-radius: 2px;
    transition: all 0.3s;
}

.ia-hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.ia-hamburger.active span:nth-child(2) {
    opacity: 0;
}

.ia-hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Menú móvil */
.ia-mobile-menu {
    display: none;
    position: fixed;
    top: var(--ia-header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--ia-white);
    z-index: 999;
    overflow-y: auto;
    padding: var(--ia-space-lg);
    animation: slideDown 0.3s ease;
}

.ia-mobile-menu.active {
    display: block;
}

.ia-mobile-menu__list {
    list-style: none;
}

.ia-mobile-menu__link {
    display: block;
    padding: var(--ia-space-md);
    color: var(--ia-gray-700);
    font-size: 1.1rem;
    font-weight: 500;
    border-bottom: 1px solid var(--ia-gray-200);
    transition: all var(--ia-transition);
}

.ia-mobile-menu__link:hover,
.ia-mobile-menu__link--active {
    color: var(--ia-primary);
    background: var(--ia-bg-softer);
    padding-left: var(--ia-space-lg);
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   FOOTER
   ============================================ */
.ia-footer {
    background: var(--ia-primary);
    color: var(--ia-white);
    padding: var(--ia-space-2xl) 0;
    margin-top: auto;
}

.ia-footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--ia-space-xl);
}

.ia-footer__title {
    color: var(--ia-white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--ia-space-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ia-footer a {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}

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

.ia-footer__links {
    list-style: none;
}

.ia-footer__links li {
    margin-bottom: var(--ia-space-sm);
}

.ia-footer__social {
    display: flex;
    gap: var(--ia-space-md);
}

.ia-footer__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    transition: background var(--ia-transition);
}

.ia-footer__social a:hover {
    background: rgba(255,255,255,0.3);
}

.ia-footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    margin-top: var(--ia-space-xl);
    padding-top: var(--ia-space-lg);
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
}

/* ============================================
   BOTONES
   ============================================ */
.ia-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--ia-space-sm);
    padding: 0.7rem 1.5rem;
    font-family: var(--ia-font);
    font-size: 0.9rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--ia-radius);
    cursor: pointer;
    transition: all var(--ia-transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}

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

.ia-btn--primary:hover {
    background: var(--ia-primary-light);
    color: var(--ia-white);
}

.ia-btn--outline {
    background: transparent;
    color: var(--ia-primary);
    border-color: var(--ia-primary);
}

.ia-btn--outline:hover {
    background: var(--ia-primary);
    color: var(--ia-white);
}

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

.ia-btn--accent:hover {
    background: var(--ia-accent-light);
    color: var(--ia-white);
}

.ia-btn--sm {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
}

.ia-btn--lg {
    padding: 0.9rem 2rem;
    font-size: 1rem;
}

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

/* ============================================
   TARJETAS
   ============================================ */
.ia-card {
    background: var(--ia-white);
    border-radius: var(--ia-radius-lg);
    box-shadow: var(--ia-shadow);
    overflow: hidden;
    transition: box-shadow var(--ia-transition), transform var(--ia-transition);
}

.ia-card:hover {
    box-shadow: var(--ia-shadow-lg);
    transform: translateY(-2px);
}

.ia-card__img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.ia-card__body {
    padding: var(--ia-space-lg);
}

.ia-card__title {
    font-size: 1.125rem;
    margin-bottom: var(--ia-space-sm);
}

.ia-card__text {
    color: var(--ia-gray-600);
    font-size: 0.9rem;
    margin-bottom: var(--ia-space-md);
}

.ia-card__meta {
    display: flex;
    align-items: center;
    gap: var(--ia-space-sm);
    font-size: 0.8rem;
    color: var(--ia-gray-500);
}

.ia-card__author-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

/* Grid de tarjetas */
.ia-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--ia-space-lg);
}

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

.ia-form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ia-gray-700);
    margin-bottom: var(--ia-space-xs);
}

.ia-form-input,
.ia-form-select,
.ia-form-textarea {
    width: 100%;
    padding: 0.7rem 1rem;
    font-family: var(--ia-font);
    font-size: 0.95rem;
    color: var(--ia-gray-800);
    background: var(--ia-white);
    border: 1.5px solid var(--ia-gray-300);
    border-radius: var(--ia-radius);
    transition: border-color var(--ia-transition), box-shadow var(--ia-transition);
    outline: none;
}

.ia-form-input:focus,
.ia-form-select:focus,
.ia-form-textarea:focus {
    border-color: var(--ia-primary);
    box-shadow: 0 0 0 3px rgba(0,0,100,0.1);
}

.ia-form-input--error {
    border-color: var(--ia-error);
}

.ia-form-error {
    font-size: 0.8rem;
    color: var(--ia-error);
    margin-top: var(--ia-space-xs);
}

.ia-form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* ============================================
   ALERTAS / MENSAJES FLASH
   ============================================ */
.ia-alert {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--ia-space-md) var(--ia-space-lg);
    border-radius: var(--ia-radius);
    margin-bottom: var(--ia-space-md);
    font-size: 0.9rem;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

.ia-alert--success { background: var(--ia-success-bg); color: var(--ia-success); }
.ia-alert--error   { background: var(--ia-error-bg); color: var(--ia-error); }
.ia-alert--warning { background: var(--ia-warning-bg); color: var(--ia-warning); }
.ia-alert--info    { background: var(--ia-info-bg); color: var(--ia-info); }

.ia-alert__close {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    padding: 0 0 0 var(--ia-space-md);
}

.ia-alert__close:hover {
    opacity: 1;
}

/* ============================================
   HERO SECTION
   ============================================ */
.ia-hero {
    background: linear-gradient(135deg, var(--ia-primary) 0%, var(--ia-primary-light) 50%, var(--ia-accent) 100%);
    color: var(--ia-white);
    padding: var(--ia-space-3xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.ia-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(180deg, transparent, var(--ia-white));
}

.ia-hero__title {
    color: var(--ia-white);
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--ia-space-md);
}

.ia-hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 400;
    opacity: 0.9;
    margin-bottom: var(--ia-space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.ia-hero__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--ia-space-md);
}

/* ============================================
   SECCIÓN
   ============================================ */
.ia-section {
    padding: var(--ia-space-2xl) 0;
}

.ia-section--alt {
    background: var(--ia-gray-50);
}

.ia-section__header {
    text-align: center;
    margin-bottom: var(--ia-space-2xl);
}

.ia-section__title {
    color: var(--ia-primary);
    margin-bottom: var(--ia-space-sm);
}

.ia-section__subtitle {
    color: var(--ia-gray-600);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   PUBLICIDAD
   ============================================ */
.ia-ad {
    text-align: center;
    margin: var(--ia-space-lg) 0;
}

.ia-ad img {
    max-width: 100%;
    height: auto;
    border-radius: var(--ia-radius);
}

.ia-ad--banner {
    max-width: 728px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   PAGINACIÓN
   ============================================ */
.ia-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--ia-space-xs);
    margin-top: var(--ia-space-2xl);
    flex-wrap: wrap;
}

.ia-pagination__link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--ia-space-sm);
    border-radius: var(--ia-radius);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--ia-gray-700);
    border: 1px solid var(--ia-gray-300);
    transition: all var(--ia-transition);
}

.ia-pagination__link:hover {
    background: var(--ia-bg-soft);
    border-color: var(--ia-primary);
    color: var(--ia-primary);
}

.ia-pagination__link--active {
    background: var(--ia-primary);
    color: var(--ia-white);
    border-color: var(--ia-primary);
}

/* ============================================
   LAYOUT AUTH (Login, Registro)
   ============================================ */
.ia-auth {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    background: var(--ia-bg-softer);
    padding: var(--ia-space-lg);
}

.ia-auth__card {
    background: var(--ia-white);
    border-radius: var(--ia-radius-lg);
    box-shadow: var(--ia-shadow-lg);
    width: 100%;
    max-width: 440px;
    padding: var(--ia-space-2xl);
}

.ia-auth__logo {
    display: block;
    margin: 0 auto var(--ia-space-xl);
    height: 60px;
}

.ia-auth__title {
    text-align: center;
    color: var(--ia-primary);
    margin-bottom: var(--ia-space-sm);
}

.ia-auth__subtitle {
    text-align: center;
    color: var(--ia-gray-500);
    font-size: 0.9rem;
    margin-bottom: var(--ia-space-xl);
}

/* ============================================
   UTILIDADES
   ============================================ */
.ia-text-center { text-align: center; }
.ia-text-right  { text-align: right; }
.ia-text-primary { color: var(--ia-primary); }
.ia-text-muted  { color: var(--ia-gray-500); }
.ia-text-sm     { font-size: 0.875rem; }
.ia-text-xs     { font-size: 0.75rem; }
.ia-font-bold   { font-weight: 700; }
.ia-font-medium { font-weight: 500; }

.ia-mt-0 { margin-top: 0; }
.ia-mt-1 { margin-top: var(--ia-space-md); }
.ia-mt-2 { margin-top: var(--ia-space-xl); }
.ia-mb-0 { margin-bottom: 0; }
.ia-mb-1 { margin-bottom: var(--ia-space-md); }
.ia-mb-2 { margin-bottom: var(--ia-space-xl); }

.ia-flex {
    display: flex;
    align-items: center;
    gap: var(--ia-space-md);
}

.ia-flex--between {
    justify-content: space-between;
}

.ia-hidden { display: none !important; }

/* Honeypot anti-spam */
.ia-hp { position: absolute; left: -9999px; }

/* ============================================
   BADGE / ETIQUETAS
   ============================================ */
.ia-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.ia-badge--primary { background: var(--ia-bg-soft); color: var(--ia-primary); }
.ia-badge--success { background: var(--ia-success-bg); color: var(--ia-success); }
.ia-badge--warning { background: var(--ia-warning-bg); color: var(--ia-warning); }
.ia-badge--error   { background: var(--ia-error-bg); color: var(--ia-error); }

/* ============================================
   RESPONSIVE: TABLET (768px+)
   ============================================ */
@media (min-width: 768px) {
    .ia-container {
        padding: 0 var(--ia-space-xl);
    }

    .ia-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .ia-footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .ia-header__user-name {
        display: block;
    }
}

/* ============================================
   RESPONSIVE: DESKTOP (1024px+)
   ============================================ */
@media (min-width: 1024px) {
    .ia-hamburger {
        display: none;
    }

    .ia-nav {
        display: flex;
    }

    .ia-cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .ia-footer__grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }

    .ia-hero {
        padding: var(--ia-space-3xl) 0 calc(var(--ia-space-3xl) + 20px);
    }
}

/* ============================================
   RESPONSIVE: DESKTOP GRANDE (1280px+)
   ============================================ */
@media (min-width: 1280px) {
    .ia-cards-grid--4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/**
 * ============================================================================
 * Este código lleva la huella de Jose Antonio Echevarria – ECH
 * echevarria@megustanlastic.es - 2026-03-21
 * Desarrollo generado para inmoautonomos. No modificar sin permiso.
 * ============================================================================
 */