/* ==========================================================
   SISTEMA DE DISEÑO ULTRA-MODERNO Y CLEAN (SaaS Premium)
   Google Font: Plus Jakarta Sans
   Paleta: Verde Botella, Gris Grafito, Amarillo-Naranja Acento, Blanco Puro
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    /* Verde Botella (Colores Primarios) */
    --color-primary-dark: #0b251a;
    --color-primary: #1b4332;
    --color-primary-light: #2d6a4f;
    --color-primary-hover: #40916c;
    --color-primary-subtle: #e8f5e9;
    --color-primary-glow: rgba(45, 106, 79, 0.18);

    /* Amarillo-Naranja (Colores Acento) */
    --color-accent: #f59e0b;
    --color-accent-hover: #d97706;
    --color-accent-dark: #b45309;
    --color-accent-light: #fffbe6;
    --color-accent-glow: rgba(245, 158, 11, 0.22);

    /* Escala de Grises Elegantes */
    --color-gray-900: #0f172a;
    --color-gray-800: #1e293b;
    --color-gray-700: #334155;
    --color-gray-600: #475569;
    --color-gray-500: #64748b;
    --color-gray-400: #94a3b8;
    --color-gray-300: #cbd5e1;
    --color-gray-200: #e2e8f0;
    --color-gray-100: #f8fafc;
    --color-gray-50:  #ffffff;

    /* Fondos */
    --bg-body: #f1f5f9;
    --bg-card: #ffffff;
    --bg-header: #0b251a;

    /* Sombras Elevadas y Suaves */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px 0 rgba(15, 23, 42, 0.04), 0 1px 2px 0 rgba(15, 23, 42, 0.02);
    --shadow-md: 0 6px 12px -2px rgba(15, 23, 42, 0.06), 0 3px 6px -3px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 16px 24px -4px rgba(15, 23, 42, 0.08), 0 6px 12px -4px rgba(15, 23, 42, 0.03);
    --shadow-xl: 0 24px 48px -12px rgba(15, 23, 42, 0.15);

    /* Radios de Borde */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transición Suave */
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-body);
    color: var(--color-gray-800);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================
   NAVEGACIÓN SUPERIOR HORIZONTAL (HEADER CLARO CLEAN)
   ========================================================== */

.main-header {
    background-color: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 4px 12px rgba(15, 23, 42, 0.03);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-gray-200);
}

.nav-container {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    height: 72px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: var(--color-primary-dark);
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.3px;
    transition: var(--transition-fast);
}

.brand-logo:hover {
    color: var(--color-primary-light);
    transform: translateY(-1px);
}

.brand-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    color: #ffffff;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 10px var(--color-accent-glow);
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 0.35rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 1.15rem;
    color: var(--color-gray-700);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary-dark);
    background-color: var(--color-gray-100);
}

.nav-link.active {
    color: #ffffff;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    box-shadow: 0 4px 12px var(--color-primary-glow);
}

.nav-link i {
    font-size: 1.05rem;
    color: var(--color-gray-400);
    transition: var(--transition-fast);
}

.nav-link:hover i {
    color: var(--color-primary);
    transform: scale(1.15);
}

.nav-link.active i {
    color: #ffffff;
}

/* Dropdown Menu Desplegable en Header Claro */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background-color: #ffffff;
    min-width: 260px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: 0.5rem;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: var(--transition-bounce);
    border: 1px solid var(--color-gray-200);
}

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

.dropdown-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.75rem 1rem;
    color: var(--color-gray-700);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.dropdown-link:hover {
    background-color: var(--color-primary-subtle);
    color: var(--color-primary-dark);
    transform: translateX(4px);
}

.dropdown-link i {
    color: var(--color-gray-400);
    font-size: 1rem;
    width: 24px;
    text-align: center;
    transition: var(--transition-fast);
}

.dropdown-link:hover i {
    color: var(--color-primary);
}

/* User Menu & Logout Button en Header Claro */
.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-logout {
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-300);
    padding: 0.55rem 1rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.btn-logout:hover {
    background-color: #ef4444;
    color: #ffffff;
    border-color: #ef4444;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

/* ==========================================================
   ESTRUCTURA PRINCIPAL Y CONTENEDORES
   ========================================================== */

.main-content {
    flex: 1;
    max-width: 1440px;
    width: 100%;
    margin: 2.25rem auto;
    padding: 0 2rem;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--color-gray-900);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.page-title i {
    color: var(--color-accent);
    background: var(--color-accent-light);
    width: 46px;
    height: 46px;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
}

.page-subtitle {
    font-size: 0.95rem;
    color: var(--color-gray-500);
    margin-top: 0.3rem;
    font-weight: 500;
}

/* ==========================================================
   TARJETAS (CARDS MODERNAS)
   ========================================================== */

.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    padding: 1.75rem;
    margin-bottom: 1.75rem;
    transition: var(--transition-fast);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-gray-300);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-gray-200);
}

.card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-gray-900);
    letter-spacing: -0.3px;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.card-title i {
    color: var(--color-primary-light);
}

/* Grid System */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-cols-4, .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .grid-cols-4, .grid-cols-3, .grid-cols-2 { grid-template-columns: repeat(1, 1fr); }
}

/* Metric Cards (SaaS KPI Cards) */
.metric-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition-bounce);
}

.metric-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--color-primary);
}

.metric-card.accent::before {
    background-color: var(--color-accent);
}

.metric-card.gray::before {
    background-color: var(--color-gray-500);
}

.metric-info h4 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--color-gray-500);
    margin-bottom: 0.35rem;
}

.metric-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-gray-900);
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.metric-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--color-primary-subtle);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.metric-card.accent .metric-icon {
    background: var(--color-accent-light);
    color: var(--color-accent-dark);
}

/* ==========================================================
   TABLAS MODERNAS CLEAN
   ========================================================== */

.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-200);
    background-color: #ffffff;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.92rem;
}

.table th {
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
    font-weight: 700;
    padding: 1rem 1.25rem;
    border-bottom: 2px solid var(--color-gray-200);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.6px;
}

.table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-gray-200);
    color: var(--color-gray-800);
    font-weight: 500;
}

.table tbody tr {
    transition: var(--transition-fast);
}

.table tbody tr:hover {
    background-color: rgba(45, 106, 79, 0.025);
}

/* Badges / Insignias redondeadas tipo píldora */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius-full);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.badge-success {
    background-color: var(--color-primary-subtle);
    color: var(--color-primary-dark);
    border: 1px solid rgba(45, 106, 79, 0.2);
}

.badge-warning {
    background-color: var(--color-accent-light);
    color: var(--color-accent-dark);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-gray {
    background-color: var(--color-gray-200);
    color: var(--color-gray-700);
}

/* ==========================================================
   BOTONES Y FORMULARIOS MODERNOS
   ========================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.7rem 1.35rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
    box-shadow: var(--shadow-xs);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--color-primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--color-primary-glow);
}

.btn-accent {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--color-accent-glow);
}

.btn-accent:hover {
    background: linear-gradient(135deg, #fbbf24 0%, var(--color-accent) 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--color-accent-glow);
}

.btn-secondary {
    background-color: #ffffff;
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-300);
}

.btn-secondary:hover {
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
    border-color: var(--color-gray-400);
}

.form-group {
    margin-bottom: 1.35rem;
}

.form-label {
    display: block;
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--color-gray-700);
    margin-bottom: 0.45rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 0.93rem;
    font-family: inherit;
    color: var(--color-gray-900);
    background-color: #ffffff;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 4px var(--color-primary-glow);
}

textarea.form-control {
    resize: vertical;
}

/* ==========================================================
   FOOTER CLEAN
   ========================================================== */

.main-footer {
    background-color: #ffffff;
    border-top: 1px solid var(--color-gray-200);
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--color-gray-500);
    font-weight: 500;
}