/* ============================================
   TEMA: DEEP BLUE OCEAN (Tonalitats de Blau)
   Prefix: --mg- (Mantenint el prefix original)
   ============================================ */

:root {
    /* ===== TIPOGRAFIA ===== */
    --mg-font-primary: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --mg-font-secondary: 'Inter', 'Roboto', 'Helvetica Neue', sans-serif;
    --mg-font-size-base: 15px;
    --mg-font-size-sm: 13px;
    --mg-font-size-lg: 17px;
    --mg-font-size-xl: 20px;
    --mg-font-size-title: 28px;
    --mg-line-height: 1.5;
    --mg-letter-spacing: 0.01em;

    /* ===== COLORS PRINCIPALS ===== */
    --mg-primary: #2a6f97;              /* Blau mitjà profund */
    --mg-primary-dark: #1a4b6d;           /* Blau fosc */
    --mg-primary-light: #4a9fd8;          /* Blau clar */
    --mg-primary-bright: #7fc3ff;          /* Blau molt clar */
    
    --mg-secondary: #5f9ea0;              /* Blau verdós (cadet blue) */
    --mg-secondary-dark: #3d6b6d;
    --mg-secondary-light: #8fc5c7;

    /* ===== COLORS DE FONS ===== */
    --mg-bg-primary: #f0f8ff;              /* Alice blue - fons molt clar */
    --mg-bg-secondary: #e6f0fa;            /* Blau molt clar */
    --mg-bg-tertiary: #d4e4f5;              /* Blau clar */
    --mg-bg-accent: #b8d8f0;                 /* Blau mitjà clar */

    /* ===== COLORS DE TEXT ===== */
    --mg-text-primary: #0a2a3f;             /* Blau molt fosc - gairebé negre */
    --mg-text-secondary: #2a4f6a;            /* Blau fosc */
    --mg-text-muted: #5a7a95;                 /* Blau grisós */
    --mg-text-disabled: #8faec9;
    --mg-text-inverse: #ffffff;

    /* ===== COLORS D'ESTAT ===== */
    --mg-success: #2e8b57;                   /* Verd marí */
    --mg-warning: #d4a017;                    · Groc mostassa */
    --mg-error: #b85a5a;                      · Vermell suau */
    --mg-info: var(--mg-primary);              /* Blau */

    /* ===== BORDES ===== */
    --mg-border-width: 1px;
    --mg-border-style: solid;
    --mg-border-radius: 6px;                    /* Arrodonit suau */
    --mg-border-radius-sm: 4px;
    --mg-border-radius-lg: 10px;
    
    --mg-border-color: #b4cde0;
    --mg-border-color-light: #d4e4f0;
    --mg-border-color-dark: #7a9bc0;
    --mg-border-color-focus: #e67e22;           /* Taronja suau per contrast */

    /* ===== BOTONS ===== */
    --mg-btn-bg: var(--mg-primary);
    --mg-btn-bg-hover: var(--mg-primary-light);
    --mg-btn-bg-active: var(--mg-primary-dark);
    --mg-btn-bg-disabled: #c4d4e4;
    
    --mg-btn-text: #ffffff;
    --mg-btn-text-hover: #ffffff;
    --mg-btn-text-active: #ffffff;
    --mg-btn-text-disabled: #8faec9;
    
    --mg-btn-border: none;
    --mg-btn-border-hover: none;
    --mg-btn-border-focus: 2px solid var(--mg-border-color-focus);
    
    --mg-btn-padding: 8px 18px;
    --mg-btn-font-size: var(--mg-font-size-base);
    --mg-btn-font-weight: 500;
    --mg-btn-text-transform: none;
    --mg-btn-letter-spacing: 0.3px;

    /* ===== OMBRES ===== */
    --mg-box-shadow: 0 4px 12px rgba(42, 111, 151, 0.08),
                     0 2px 4px rgba(0, 0, 0, 0.02);
    --mg-box-shadow-hover: 0 6px 16px rgba(42, 111, 151, 0.15),
                           0 4px 8px rgba(0, 0, 0, 0.04);
    --mg-box-shadow-focus: 0 0 0 3px rgba(42, 111, 151, 0.25);
    
    --mg-text-shadow: none;
    --mg-text-shadow-strong: none;

    /* ===== TRANSICIONS ===== */
    --mg-transition-fast: all 0.15s ease;
    --mg-transition-base: all 0.25s ease;
    --mg-transition-slow: all 0.4s ease;
	
    /* Paleta bàsica d'icones */
    --mg-icon-color: var(--mg-primary);
    --mg-icon-color-hover: var(--mg-primary-light);
    --mg-icon-color-active: var(--mg-primary-dark);
    --mg-icon-color-disabled: var(--mg-text-disabled);
    
    /* Mides */
    --mg-icon-size-sm: 18px;
    --mg-icon-size-md: 22px;
    --mg-icon-size-lg: 28px;
    --mg-icon-size-xl: 36px;
    
    /* Efectes */
    --mg-icon-glow: none;
    --mg-icon-glow-strong: none;
    --mg-icon-pixel: none;
}

/* ===== TEMA ALTERNATIU - MIDNIGHT BLUE ===== */
.theme-midnight {
    --mg-primary: #1e3a5f;              /* Blau mitjanit */
    --mg-primary-dark: #0f2a45;
    --mg-primary-light: #3a6d9c;
    --mg-bg-primary: #eef5fc;
    --mg-bg-secondary: #ddeaf5;
    --mg-text-primary: #0a1f33;
    --mg-box-shadow: 0 4px 12px rgba(30, 58, 95, 0.1);
}

/* ===== TEMA ALTERNATIU - TROPICAL OCEAN ===== */
.theme-tropical {
    --mg-primary: #00a5b0;              /* Turquesa */
    --mg-primary-dark: #007a83;
    --mg-primary-light: #5fd0d9;
    --mg-bg-primary: #e9f7f9;
    --mg-secondary: #ffb347;              · Taronja coral */
    --mg-box-shadow: 0 4px 12px rgba(0, 165, 176, 0.15);
}

/* ===== TEMA ALTERNATIU - NAVY BLUE ===== */
.theme-navy {
    --mg-primary: #293b5f;              /* Blau marí */
    --mg-primary-dark: #1b2842;
    --mg-primary-light: #4e6a99;
    --mg-bg-primary: #eef2f9;
    --mg-bg-secondary: #e2e9f2;
    --mg-text-primary: #121f33;
    --mg-border-color: #a7bbd4;
}

/* ============================================
   EFECTES ESPECÍFICS DEL TEMA BLAU
   ============================================ */

/* Eliminem efectes retro */
body::before, body::after {
    display: none;
}

/* Animació suau d'onades */
@keyframes blue-pulse {
    0% { 
        background-color: var(--mg-bg-primary);
    }
    50% { 
        background-color: #e3f0ff;
    }
    100% { 
        background-color: var(--mg-bg-primary);
    }
}

body {
    animation: none;
    background-color: var(--mg-bg-primary);
    color: var(--mg-text-primary);
    font-family: 'Inter', sans-serif;
}

/* Targeta amb efecte vidre blau */
.blue-glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(42, 111, 151, 0.1);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(42, 111, 151, 0.12);
    padding: 24px;
}

/* Gradient blau per encapçalaments */
.blue-gradient {
    background: linear-gradient(135deg, var(--mg-primary) 0%, var(--mg-primary-light) 100%);
    color: white;
    padding: 40px;
    border-radius: 12px;
}

/* Botó amb efecte d'onada */
.blue-wave-button {
    background: linear-gradient(135deg, var(--mg-primary) 0%, var(--mg-primary-light) 100%);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 30px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(42, 111, 151, 0.2);
}

.blue-wave-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(42, 111, 151, 0.3);
}

/* Separador decoratiu */
.blue-divider {
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--mg-primary), transparent);
    margin: 30px 0;
}

/* Enllaços blaus */
a {
    color: var(--mg-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--mg-primary-light);
    text-decoration: underline;
    text-decoration-color: var(--mg-primary-light);
    text-underline-offset: 4px;
}

/* Inputs amb focus blau */
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--mg-primary);
    box-shadow: 0 0 0 3px rgba(42, 111, 151, 0.2);
}

/* Taules amb capçalera blava */
.blue-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.blue-table th {
    background: var(--mg-primary);
    color: white;
    font-weight: 500;
    padding: 12px;
    text-align: left;
}

.blue-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--mg-border-color);
}

.blue-table tr:last-child td {
    border-bottom: none;
}

.blue-table tr:hover {
    background: rgba(42, 111, 151, 0.05);
}

/* Badges / Etiquetes */
.blue-badge {
    background: rgba(42, 111, 151, 0.1);
    color: var(--mg-primary-dark);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    display: inline-block;
}

.blue-badge-solid {
    background: var(--mg-primary);
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    display: inline-block;
}

/* Progress bar blava */
.blue-progress {
    height: 8px;
    background: #e0eaf4;
    border-radius: 10px;
    overflow: hidden;
}

.blue-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--mg-primary) 0%, var(--mg-primary-light) 100%);
    border-radius: 10px;
    transition: width 0.3s ease;
}

/* Alertes */
.blue-alert {
    background: rgba(42, 111, 151, 0.1);
    border-left: 4px solid var(--mg-primary);
    padding: 16px 20px;
    border-radius: 6px;
    color: var(--mg-text-primary);
}

/* Tooltip */
.blue-tooltip {
    position: relative;
}

.blue-tooltip:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--mg-primary-dark);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 10;
}

/* Checkbox personalitzat */
.blue-checkbox {
    accent-color: var(--mg-primary);
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Loading spinner blau */
@keyframes blue-spin {
    to { transform: rotate(360deg); }
}

.blue-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(42, 111, 151, 0.2);
    border-top-color: var(--mg-primary);
    border-radius: 50%;
    animation: blue-spin 0.8s linear infinite;
}

/* Efecte de profunditat */
.blue-depth {
    box-shadow: 
        0 1px 2px rgba(0, 0, 0, 0.02),
        0 2px 4px rgba(42, 111, 151, 0.02),
        0 4px 8px rgba(42, 111, 151, 0.02),
        0 8px 16px rgba(42, 111, 151, 0.02);
}