:root {
    /* PALETA MODERNA CON DEGRADADOS */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warning: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    --purple-dark: #5b21b6;
    --purple-medium: #7c3aed;
    --purple-light: #a78bfa;
    --blue-bright: #3b82f6;
    --pink-bright: #ec4899;
    --orange-bright: #f97316;
    
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-700: #374151;
    --gray-900: #111827;
    
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    color: var(--text);
    min-height: 100vh;
    padding: 20px;
}

/* HEADER MODERNO */
.header {
    text-align: center;
    padding: 20px 0 30px 0;
    animation: fadeInDown 0.6s ease;
}

.logo {
    width: 160px;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

/* TÍTULO PRINCIPAL */
.main-header {
    text-align: center;
    margin-bottom: 30px;
    animation: fadeInDown 0.6s ease;
}

.main-header h1 {
    color: white;
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 10px;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    letter-spacing: -1px;
}

.main-header p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.2rem;
    font-weight: 500;
}

/* CONTENEDOR PRINCIPAL */
.auth-container {
    display: flex;
    justify-content: center;
    padding: 20px;
    animation: fadeInUp 0.6s ease;
}

.auth-card {
    background: white;
    width: 100%;
    max-width: 1200px;
    padding: 35px;
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    animation: fadeInUp 0.6s ease;
}

/* NAVEGACIÓN */
#nav-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

#nav-buttons a,
#nav-buttons button {
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-200);
    transform: translateY(-2px);
}

/* FILTROS MODERNOS */
.filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
    padding: 25px;
    background: var(--gradient-primary);
    border-radius: 16px;
    animation: fadeIn 0.8s ease;
}

.filters select {
    padding: 14px 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.95);
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--gray-700);
}

.filters select:focus {
    outline: none;
    border-color: white;
    background: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.filters select:hover {
    background: white;
    border-color: rgba(255, 255, 255, 0.6);
}

/* CONTENEDOR DE POSTS - FEED STYLE */
#posts-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

/* TARJETA DE POST COMPACTA - FEED STYLE */
.post-card {
    background: white;
    border-radius: 16px;
    padding: 20px;
    border: 2px solid var(--gray-100);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: slideInUp 0.4s ease;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.post-card:hover::before {
    width: 8px;
}

.post-card:hover {
    border-color: var(--purple-light);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.15);
    transform: translateY(-4px);
}

/* HEADER DEL POST */
.post-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    gap: 12px;
}

.post-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
    flex: 1;
}

/* BADGE DE TIEMPO - DESTACADO */
.post-time {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    animation: pulse 2s ease-in-out infinite;
}

/* COLORES SEGÚN TIEMPO RESTANTE */
.post-time:not(.expired) {
    background: var(--gradient-warning);
    color: white;
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.post-time.expired {
    background: var(--gray-200);
    color: var(--gray-500);
    animation: none;
}

/* CUERPO DEL POST - COMPACTO */
.post-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.post-body p {
    margin: 0;
    font-size: 14px;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.5;
}

.post-body strong {
    color: var(--gray-900);
    font-weight: 600;
    min-width: fit-content;
}

/* DESTACAR NOMBRE - PRIORIDAD 1 */
.post-body p:first-child {
    font-size: 16px;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.post-body p:first-child strong {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* BOTÓN DE CONTACTO */
.post-contact {
    margin-top: 12px;
}

.btn-contact {
    width: 100%;
    padding: 12px 20px;
    background: var(--gradient-success);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(79, 163, 209, 0.3);
}

.btn-contact:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 163, 209, 0.4);
}

/* CONTACTO BLOQUEADO */
.post-contact-locked {
    margin-top: 12px;
    padding: 14px;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    border-radius: 12px;
    text-align: center;
    border: 2px dashed var(--gray-300);
}

.post-contact-locked p {
    margin: 0;
    font-size: 13px;
    color: var(--gray-600);
    font-weight: 500;
}

.post-contact-locked a {
    color: var(--purple-medium);
    font-weight: 700;
    text-decoration: none;
    transition: color 0.2s ease;
}

.post-contact-locked a:hover {
    color: var(--purple-dark);
    text-decoration: underline;
}

/* ACCIONES DEL POST */
.post-actions {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 2px solid var(--gray-100);
}

.btn-delete {
    width: 100%;
    padding: 10px 20px;
    background: var(--gradient-secondary);
    color: white;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-delete:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
}

/* NO POSTS */
.no-posts {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-400);
    font-size: 16px;
    background: var(--gray-50);
    border-radius: 16px;
    border: 2px dashed var(--gray-200);
}

/* NOTIFICACIONES */
#notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 400px;
}

.notification {
    background: white;
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    transform: translateX(450px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-left: 4px solid var(--purple-medium);
    font-weight: 500;
    font-size: 14px;
}

.notification.show {
    transform: translateX(0);
    opacity: 1;
}

.notification-success {
    border-left-color: #10b981;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    color: #065f46;
}

.notification-error {
    border-left-color: #ef4444;
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    color: #991b1b;
}

.notification-info {
    border-left-color: var(--blue-bright);
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    color: #1e40af;
}

/* FORMULARIOS */
input, select {
    width: 100%;
    padding: 14px 16px;
    margin-bottom: 16px;
    border-radius: 12px;
    border: 2px solid var(--gray-200);
    font-size: 15px;
    transition: all 0.3s ease;
    font-weight: 500;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--purple-medium);
    box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.1);
    transform: translateY(-2px);
}

/* BOTONES GENERALES */
button[type="submit"] {
    width: 100%;
    padding: 14px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

/* ANIMACIONES */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* RESPONSIVE */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .main-header h1 {
        font-size: 2rem;
    }
    
    .main-header p {
        font-size: 1rem;
    }
    
    .auth-card {
        padding: 20px;
        border-radius: 16px;
    }
    
    .filters {
        grid-template-columns: 1fr;
        padding: 20px;
    }
    
    .post-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .post-time {
        align-self: flex-start;
    }
    
    #notification-container {
        left: 10px;
        right: 10px;
        max-width: none;
    }
    
    .logo {
        width: 120px;
    }
}

@media (max-width: 480px) {
    .main-header h1 {
        font-size: 1.75rem;
    }
    
    #nav-buttons {
        flex-direction: column;
    }
    
    #nav-buttons a,
    #nav-buttons button {
        width: 100%;
        justify-content: center;
    }
}