/**
 * H Network - Charte Graphique Premium avec Gradients
 * Proposition 3: Style Premium avec Gradients
 * Typographie: Source Sans Pro
 */

/* ============================================
   Variables CSS (pour faciliter la maintenance)
   ============================================ */
:root {
    /* Couleurs principales */
    --color-primary: #533dea;
    --color-primary-gradient: linear-gradient(135deg, #533dea 0%, #764ba2 100%);
    --color-secondary: #717171;
    --color-secondary-gradient: linear-gradient(135deg, #533dea 0%, #4228c7 100%);
    --color-success: #533dea;
    --color-success-gradient: linear-gradient(135deg, #533dea 0%, #4228c7 100%);
    --color-warning: #f2c71c;
    --color-warning-gradient: linear-gradient(135deg, #f2c71c 0%, #d4a817 100%);
    --color-critical: #ea3434;
    --color-critical-gradient: linear-gradient(135deg, #ea3434 0%, #c42a2a 100%);
    --color-dark: #1e1e1e;
    --color-dark-gradient: linear-gradient(135deg, #1e1e1e 0%, #000000 100%);
    --color-light: #f8f8f8;
    --color-light-gradient: linear-gradient(135deg, #f8f8f8 0%, #e8e8e8 100%);
    
    /* Couleurs de texte */
    --text-primary: #1e1e1e;
    --text-secondary: #717171;
    --text-white: #ffffff;
    
    /* Bordures */
    --border-color: #dddddd;
    --border-radius: 10px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Ombres */
    --shadow-sm: 0 4px 15px rgba(83, 61, 234, 0.4);
    --shadow-md: 0 8px 25px rgba(0,0,0,0.1);
    --shadow-lg: 0 12px 35px rgba(0,0,0,0.15);
    --shadow-xl: 0 25px 80px rgba(0,0,0,0.3);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ============================================
   Typographie Premium avec Gradients
   ============================================ */
h1.premium-gradient,
.h1-premium-gradient {
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.8em;
    font-weight: 700;
    margin-bottom: 10px;
}

h2.premium-gradient,
.h2-premium-gradient {
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.9em;
    font-weight: 700;
    margin-bottom: 20px;
}

h3.premium-gradient,
.h3-premium-gradient {
    font-size: 1.6em;
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   Boutons Premium avec Gradients
   ============================================ */
.btn-premium {
    padding: 14px 32px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1em;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
    font-family: 'Source Sans Pro', sans-serif;
}

.btn-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.2);
    transition: left 0.3s;
}

.btn-premium:hover::before {
    left: 100%;
}

.btn-premium-primary {
    background: var(--color-primary-gradient);
    color: var(--text-white);
    box-shadow: var(--shadow-sm);
}

.btn-premium-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(83, 61, 234, 0.5);
}

.btn-premium-secondary {
    background: #533dea;
    color: var(--text-white);
}

.btn-premium-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(83, 61, 234, 0.5);
}

.btn-premium-success {
    background: #533dea;
    color: var(--text-white);
}

.btn-premium-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(83, 61, 234, 0.5);
}

.btn-premium-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

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

.btn-premium-gradient {
    background: #533dea;
    color: var(--text-white);
    box-shadow: var(--shadow-sm);
}

.btn-premium-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(83, 61, 234, 0.5);
}

/* ============================================
   Cards Premium avec Gradients
   ============================================ */
.card-premium {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-primary-gradient);
}

.card-premium:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.card-premium-title {
    font-size: 1.4em;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.card-premium-content {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.7;
}

.card-premium-gradient {
    background: var(--color-primary-gradient);
    color: var(--text-white);
}

.card-premium-gradient::before {
    display: none;
}

.card-premium-gradient .card-premium-title,
.card-premium-gradient .card-premium-content {
    color: var(--text-white);
}

/* ============================================
   Badges Premium avec Style
   ============================================ */
.badge-premium {
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    display: inline-block;
}

.badge-premium-primary {
    background: linear-gradient(135deg, rgba(83, 61, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
    color: var(--color-primary);
    border: 1px solid rgba(83, 61, 234, 0.2);
}

.badge-premium-success {
    background: rgba(68, 180, 97, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(68, 180, 97, 0.2);
}

.badge-premium-warning {
    background: rgba(242, 199, 28, 0.15);
    color: #b8940f;
    border: 1px solid rgba(242, 199, 28, 0.2);
}

.badge-premium-critical {
    background: rgba(234, 52, 52, 0.15);
    color: var(--color-critical);
    border: 1px solid rgba(234, 52, 52, 0.2);
}

/* ============================================
   Champs de Formulaire Premium
   ============================================ */
.input-premium-group {
    margin-bottom: 25px;
}

.input-premium-label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-primary);
}

.input-premium-field {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1em;
    transition: var(--transition);
    background: white;
    font-family: 'Source Sans Pro', sans-serif;
}

.input-premium-field:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(83, 61, 234, 0.1);
}

.input-premium-field::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

/* ============================================
   Alertes Premium avec Gradients
   ============================================ */
.alert-premium {
    padding: 18px 24px;
    border-radius: 12px;
    margin-bottom: 18px;
    border-left: 5px solid;
    font-size: 1em;
    position: relative;
    overflow: hidden;
}

.alert-premium-success {
    background: linear-gradient(135deg, rgba(68, 180, 97, 0.1) 0%, rgba(45, 122, 63, 0.1) 100%);
    border-color: var(--color-success);
    color: #2d7a3f;
}

.alert-premium-warning {
    background: linear-gradient(135deg, rgba(242, 199, 28, 0.1) 0%, rgba(184, 148, 15, 0.1) 100%);
    border-color: var(--color-warning);
    color: #b8940f;
}

.alert-premium-critical {
    background: linear-gradient(135deg, rgba(234, 52, 52, 0.1) 0%, rgba(196, 42, 42, 0.1) 100%);
    border-color: var(--color-critical);
    color: #c42a2a;
}

.alert-premium-info {
    background: linear-gradient(135deg, rgba(83, 61, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-color: var(--color-primary);
    color: #4228c7;
}

/* ============================================
   Utilitaires Premium
   ============================================ */
.gradient-primary {
    background: var(--color-primary-gradient);
}

.gradient-success {
    background: var(--color-success-gradient);
}

.gradient-warning {
    background: var(--color-warning-gradient);
}

.gradient-critical {
    background: var(--color-critical-gradient);
}

.text-gradient-primary {
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.shadow-premium-lg {
    box-shadow: var(--shadow-lg);
}

.shadow-premium-xl {
    box-shadow: var(--shadow-xl);
}

/* ============================================
   Améliorations pour les éléments existants
   ============================================ */
.primary_color {
    color: var(--color-primary);
}

.bg_primary {
    background: var(--color-primary-gradient);
}

/* Amélioration des boutons existants avec style premium */
.btn-primary,
button[type="submit"].primary {
    background: var(--color-primary-gradient);
    color: var(--text-white);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.btn-primary:hover,
button[type="submit"].primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(83, 61, 234, 0.5);
}

/* Amélioration des cards existantes */
.tf-balance-box,
.card {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.tf-balance-box:hover,
.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    h1.premium-gradient,
    .h1-premium-gradient {
        font-size: 2.2em;
    }
    
    h2.premium-gradient,
    .h2-premium-gradient {
        font-size: 1.6em;
    }
    
    .btn-premium {
        padding: 12px 24px;
        font-size: 0.95em;
    }
    
    .card-premium {
        padding: 20px;
    }
}