/* ============================================
    GRAPHEINCR - HEADER & NAVBAR STYLES
    Sistema de diseño moderno 2026
   ============================================ */

:root {
    /* ---- COLORES PRINCIPALES ---- */
    --color-primary: #4f46e5;        /* Indigo - Principal */
    --color-secondary: #9333ea;      /* Morado - Secundario */
    --color-accent: #ec4899;         /* Rosa - Acentos */
    --color-success: #10b981;        /* Verde - Éxito */
    --color-warning: #f59e0b;        /* Ámbar - Advertencia */
    --color-danger: #ef4444;         /* Rojo - Peligro */
    
    /* ---- COLORES NEUTROS ---- */
    --color-dark: #1f2937;           /* Gris oscuro - Textos */
    --color-light: #f9fafb;          /* Gris claro - Fondos */
    --color-border: #e5e7eb;         /* Gris medio - Bordes */
    --color-white: #ffffff;          /* Blanco puro */
    --color-text: #374151;           /* Gris texto - Principal */
    
    /* ---- EFECTOS GLASS MORPHISM ---- */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-bg-dark: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    --glass-blur: 12px;
    
    /* ---- SOMBRAS ---- */
    --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);
    
    /* ---- TIPOGRAFÍA ---- */
    --font-sans: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 600;
    --font-weight-bold: 700;
    --font-weight-extra-bold: 800;
    
    /* ---- TRANSICIONES ---- */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-smooth: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   HEADER PRINCIPAL
   ============================================ */

#header-grapheincr {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: linear-gradient(135deg, var(--glass-bg) 0%, rgba(255, 255, 255, 0.75) 100%);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: 1rem 0;
}

/* ============================================
   NAVBAR MODERNO
   ============================================ */

.navbar-grapheincr {
    background: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    border: none;
}

.navbar-grapheincr .container-fluid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ---- BRAND/LOGO ---- */
.navbar-brand-grapheincr {
    font-family: var(--font-sans);
    font-size: 1.75rem;
    font-weight: var(--font-weight-extra-bold);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: transform var(--transition-normal);
}

.navbar-brand-grapheincr:hover {
    transform: scale(1.05);
}

.navbar-brand-grapheincr i {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---- TOGGLE BUTTON MÓVIL ---- */
.navbar-toggler {
    border: none;
    padding: 0.5rem 0.75rem;
    transition: all var(--transition-normal);
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%234f46e5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ---- NAV LINKS ---- */
.nav-link {
    color: var(--color-text) !important;
    font-weight: var(--font-weight-medium);
    font-size: 0.95rem;
    padding: 0.75rem 1.25rem !important;
    border-radius: 12px;
    margin: 0 0.25rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(79, 70, 229, 0.1), transparent);
    transition: left var(--transition-smooth);
}

.nav-link:hover {
    color: var(--color-primary) !important;
    background: rgba(79, 70, 229, 0.08);
    transform: translateY(-2px);
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link.active {
    color: var(--color-primary) !important;
    background: rgba(79, 70, 229, 0.12);
    border-bottom: 3px solid var(--color-primary);
    font-weight: var(--font-weight-bold);
}

/* ---- DROPDOWN MENUS ---- */
.dropdown-menu {
    background: var(--glass-bg-dark);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    border-radius: 12px;
    padding: 0.5rem 0;
    min-width: 220px;
    animation: slideDown 0.3s ease;
}

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

.dropdown-item {
    color: var(--color-text);
    padding: 0.75rem 1.5rem;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.dropdown-item:hover {
    background: rgba(79, 70, 229, 0.08);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    padding-left: 1.75rem;
}

.dropdown-item.active {
    background: rgba(79, 70, 229, 0.12);
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.dropdown-divider {
    background-color: var(--color-border);
    margin: 0.5rem 0;
}

/* ---- DROPDOWN HEADER ---- */
.dropdown-header {
    color: var(--color-dark);
    font-weight: var(--font-weight-bold);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.75rem 1.5rem;
}

/* ============================================
   ACCIONES Y BOTONES EN NAV
   ============================================ */

.nav-action-btn {
    padding: 0.6rem 1.25rem;
    border-radius: 10px;
    font-weight: var(--font-weight-medium);
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Botón Primario */
.nav-btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
}

.nav-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.3);
    color: var(--color-white);
}

/* Botón Secundario */
.nav-btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.nav-btn-secondary:hover {
    background: rgba(79, 70, 229, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(79, 70, 229, 0.2);
}

/* ============================================
   NOTIFICACIONES Y BADGES
   ============================================ */

.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    background: var(--color-danger);
    color: var(--color-white);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
    }
}

/* ============================================
   ICONOS EN NAV
   ============================================ */

.nav-icon {
    font-size: 1.2rem;
    transition: all var(--transition-normal);
}

.nav-link:hover .nav-icon {
    color: var(--color-primary);
    transform: rotate(5deg) scale(1.1);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet (768px y superior) */
@media (max-width: 991.98px) {
    .navbar-grapheincr {
        padding: 0;
    }
    
    .navbar-collapse {
        background: var(--glass-bg-dark);
        backdrop-filter: blur(var(--glass-blur));
        border-radius: 12px;
        margin-top: 1rem;
        padding: 1rem;
        border: 1px solid var(--glass-border);
    }
    
    .nav-link {
        padding: 0.75rem 1rem !important;
        margin: 0.25rem 0;
    }
    
    .navbar-brand-grapheincr {
        font-size: 1.5rem;
    }
}

/* Mobile (menos de 576px) */
@media (max-width: 575.98px) {
    #header-grapheincr {
        padding: 0.75rem 0;
    }
    
    .navbar-brand-grapheincr {
        font-size: 1.25rem;
    }
    
    .navbar-brand-grapheincr i {
        font-size: 1.5rem;
    }
    
    .navbar-collapse {
        margin-top: 0.75rem;
    }
    
    .nav-link {
        font-size: 0.9rem;
        padding: 0.6rem 0.75rem !important;
    }
    
    .dropdown-menu {
        min-width: 180px;
    }
    
    .nav-action-btn {
        width: 100%;
        justify-content: center;
        margin-top: 0.5rem;
    }
}

/* ============================================
   TEMAS ALTERNATIVOS (Opcional)
   ============================================ */

/* Tema Oscuro */
body.dark-theme {
    --glass-bg: rgba(30, 30, 30, 0.9);
    --glass-bg-dark: rgba(20, 20, 20, 0.95);
    --glass-border: rgba(255, 255, 255, 0.1);
    --color-text: #e5e7eb;
    --color-dark: #f3f4f6;
}

body.dark-theme #header-grapheincr {
    background: linear-gradient(135deg, rgba(30, 30, 30, 0.95) 0%, rgba(20, 20, 20, 0.95) 100%);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

body.dark-theme .nav-link {
    color: #e5e7eb !important;
}

body.dark-theme .nav-link:hover {
    background: rgba(79, 70, 229, 0.15);
}

body.dark-theme .dropdown-item {
    color: #e5e7eb;
}

body.dark-theme .dropdown-item:hover {
    background: rgba(79, 70, 229, 0.15);
    color: var(--color-primary);
}