/**
 * Buyer Person Studio - Estilos principales
 * Diseño moderno, limpio y profesional
 */

/* ============================================
   VARIABLES CSS
   ============================================ */
:root {
    /* Colores principales */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --primary-lighter: #e0e7ff;
    
    /* Colores secundarios */
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    
    /* Colores neutros */
    --dark: #1e293b;
    --gray-dark: #334155;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --gray-lighter: #cbd5e1;
    --light: #f1f5f9;
    --white: #ffffff;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Espaciado */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transiciones */
    --transition: all 0.2s ease-in-out;
    --transition-fast: all 0.1s ease-in-out;
    --transition-slow: all 0.3s ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* ============================================
   UTILIDADES
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.container-lg {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.container-sm {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.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;
}

/* ============================================
   BOTONES
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1.5;
    color: var(--dark);
    background-color: var(--white);
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn:hover {
    background-color: var(--light);
    border-color: var(--gray-light);
}

.btn-primary {
    color: var(--white);
    background: var(--gradient-primary);
    border-color: transparent;
}

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

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

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

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

.btn-success:hover {
    background-color: #059669;
    color: var(--white);
}

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

.btn-danger:hover {
    background-color: #dc2626;
    color: var(--white);
}

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

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

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
}

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

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

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

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    font-family: inherit;
    line-height: 1.5;
    color: var(--dark);
    background-color: var(--white);
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

.form-control::placeholder {
    color: var(--gray-light);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    cursor: pointer;
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
    cursor: pointer;
    accent-color: var(--primary);
}

.form-select {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--dark);
    background-color: var(--white);
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

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

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

.card-header {
    padding: var(--space-5);
    border-bottom: 1px solid var(--light);
}

.card-body {
    padding: var(--space-5);
}

.card-footer {
    padding: var(--space-4) var(--space-5);
    background-color: var(--light);
    border-top: 1px solid var(--gray-lighter);
}

/* ============================================
   ALERTAS
   ============================================ */
.alert {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    margin-bottom: var(--space-4);
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error,
.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* ============================================
   NAVEGACIÓN
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-lighter);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--dark);
}

.navbar-brand i {
    color: var(--primary);
    font-size: 1.5rem;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    list-style: none;
}

.nav-link {
    color: var(--gray);
    font-weight: 500;
    padding: var(--space-2) 0;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary);
    border-radius: var(--radius-full);
}

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

/* User menu */
.user-menu {
    position: relative;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.user-avatar:hover {
    border-color: var(--primary);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 220px;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1001;
}

.user-menu:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-header {
    padding: var(--space-4);
    border-bottom: 1px solid var(--light);
}

.user-dropdown-header strong {
    display: block;
    color: var(--dark);
}

.user-dropdown-header span {
    font-size: var(--font-size-sm);
    color: var(--gray);
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    color: var(--gray-dark);
    font-size: var(--font-size-sm);
}

.user-dropdown a:hover {
    background-color: var(--light);
    color: var(--primary);
}

.user-dropdown a i {
    width: 20px;
    text-align: center;
}

/* Language selector */
.lang-selector {
    position: relative;
}

.lang-selector select {
    padding: var(--space-2) var(--space-3);
    padding-right: 2rem;
    font-size: var(--font-size-sm);
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius);
    background-color: var(--white);
    cursor: pointer;
}

/* Mobile toggle */
.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
}

.navbar-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--dark);
    transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    padding: 120px 0 80px;
    background: var(--gradient-hero);
    color: var(--white);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--space-4);
    line-height: 1.2;
}

.hero p {
    font-size: var(--font-size-xl);
    opacity: 0.9;
    margin-bottom: var(--space-8);
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

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

.hero .btn-primary:hover {
    background: var(--light);
}

.hero .btn-ghost {
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.hero .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
    padding: 80px 0;
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
}

.feature-card {
    text-align: center;
    padding: var(--space-8);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-5);
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-3);
}

.feature-card p {
    color: var(--gray);
}

/* ============================================
   STATS CARDS
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

.stat-card {
    background-color: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-2);
}

.stat-label {
    color: var(--gray);
    font-size: var(--font-size-sm);
}

/* ============================================
   PROJECTS & PERSONAS GRID
   ============================================ */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
    gap: var(--space-4);
}

.page-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.projects-grid,
.personas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-5);
}

.project-card,
.persona-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover,
.persona-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.project-card-header,
.persona-card-header {
    padding: var(--space-5);
    background: var(--gradient-primary);
    color: var(--white);
}

.project-card-header h3,
.persona-card-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.project-card-body,
.persona-card-body {
    padding: var(--space-5);
}

.project-card-footer,
.persona-card-footer {
    padding: var(--space-4) var(--space-5);
    background-color: var(--light);
    display: flex;
    gap: var(--space-3);
}

.persona-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    object-fit: cover;
    margin: 0 auto var(--space-4);
    border: 4px solid var(--white);
    box-shadow: var(--shadow);
}

.progress-bar {
    height: 8px;
    background-color: var(--gray-lighter);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-top: var(--space-3);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

/* ============================================
   PERSONA SECTIONS GRID
   ============================================ */
.persona-sections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-5);
}

.section-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: var(--space-5);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
}

.section-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.section-card.completed {
    border-color: var(--success);
}

.section-card.completed::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    width: 24px;
    height: 24px;
    background: var(--success);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

.section-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.section-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

.section-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.section-card p {
    font-size: var(--font-size-sm);
    color: var(--gray);
    margin: 0;
}

/* ============================================
   MODALS
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5);
    border-bottom: 1px solid var(--light);
}

.modal-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--dark);
}

.modal-body {
    padding: var(--space-5);
}

.modal-footer {
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
    padding: var(--space-4) var(--space-5);
    background-color: var(--light);
    border-top: 1px solid var(--gray-lighter);
}

/* ============================================
   AUTH PAGES
   ============================================ */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    background: var(--gradient-hero);
}

.auth-card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 450px;
    padding: var(--space-8);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-header .logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: var(--space-4);
}

.auth-header .logo i {
    color: var(--primary);
}

.auth-header p {
    color: var(--gray);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--light);
}

.auth-footer a {
    color: var(--primary);
    font-weight: 500;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-6) 0;
    color: var(--gray);
    font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--gray-lighter);
}

.btn-google {
    width: 100%;
    background-color: var(--white);
    color: var(--dark);
    border: 1px solid var(--gray-lighter);
}

.btn-google:hover {
    background-color: var(--light);
}

.btn-google i {
    color: #ea4335;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--dark);
    color: var(--gray-light);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-10);
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-brand {
    max-width: 300px;
}

.footer-brand h3 {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--white);
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-4);
}

.footer-brand h3 i {
    color: var(--primary);
}

.footer-brand p {
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.footer-links h4 {
    color: var(--white);
    font-size: var(--font-size-base);
    margin-bottom: var(--space-4);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    color: var(--gray-light);
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-6);
    border-top: 1px solid var(--gray-dark);
    font-size: var(--font-size-sm);
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}

.footer-dig {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border-top: 3px solid var(--primary);
}

.footer-dig .footer-brand a {
    color: var(--primary-light);
    font-weight: 600;
}

.footer-dig .footer-brand a:hover {
    color: var(--primary);
}

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background-color: #dbeafe;
    color: #1e40af;
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-12);
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-5);
    background-color: var(--light);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--gray);
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-3);
    color: var(--dark);
}

.empty-state p {
    color: var(--gray);
    margin-bottom: var(--space-5);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .navbar-nav {
        display: none;
    }
    
    .navbar-toggle {
        display: flex;
    }
    
    .hero h1 {
        font-size: var(--font-size-3xl);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero h1 {
        font-size: var(--font-size-2xl);
    }
    
    .hero p {
        font-size: var(--font-size-lg);
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .projects-grid,
    .personas-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   ANIMACIONES
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .navbar,
    .footer,
    .btn,
    .project-actions {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--gray-lighter);
        break-inside: avoid;
    }
}