/* =====================================================
   TOTOPRONOSTICI - TEMA MODERNO
   ===================================================== */

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

:root {
    /* Colori principali */
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --accent: #f59e0b;
    
    /* Colori admin (usati nelle pagine admin) */
    --admin-primary: #1f2937;
    --admin-primary-hover: #374151;
    
    /* Colori neutri */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Colori semantici */
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* Ombre */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Font */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

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

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--gray-900);
    margin-bottom: 0.5em;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

/* === FORM ELEMENTS === */
input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="tel"],
input[type="url"],
input[type="search"],
input[type="date"],
input[type="time"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--gray-700);
    background-color: #fff;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

input::placeholder {
    color: var(--gray-400);
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    border: none;
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    box-shadow: 0 4px 14px rgba(30, 64, 175, 0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.45);
    color: #fff;
}

.btn-secondary {
    color: #fff;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-secondary:hover {
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
    color: #fff;
}

.btn-outline {
    color: var(--primary);
    background: transparent;
    border: 2px solid var(--primary);
    box-shadow: none;
}

.btn-outline:hover {
    color: #fff;
    background: var(--primary);
}

.btn-danger {
    color: #fff;
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* === CARDS === */
.card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.card-header h1,
.card-header h2,
.card-header h3,
.card-header h4 {
    margin-bottom: 0;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* === TABLES === */
.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table th,
.table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    font-weight: 600;
    color: #fff;
    background: var(--gray-800);
}

.table tbody tr:hover {
    background-color: var(--gray-50);
}

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

/* === BADGES === */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-primary {
    color: var(--primary-dark);
    background: #dbeafe;
}

.badge-success {
    color: #166534;
    background: #dcfce7;
}

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

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

/* === ALERTS === */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-weight: 500;
}

.alert-success {
    color: #166534;
    background: #dcfce7;
    border: 1px solid #86efac;
}

.alert-warning {
    color: #92400e;
    background: #fef3c7;
    border: 1px solid #fcd34d;
}

.alert-danger {
    color: #991b1b;
    background: #fee2e2;
    border: 1px solid #fca5a5;
}

.alert-info {
    color: #1e40af;
    background: #dbeafe;
    border: 1px solid #93c5fd;
}

/* === UTILITIES === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--gray-500); }

.fw-normal { font-weight: 400; }
.fw-medium { font-weight: 500; }
.fw-semibold { font-weight: 600; }
.fw-bold { font-weight: 700; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 2rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }

.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 2rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }

.flex-column { flex-direction: column; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }
.gap-4 { gap: 1.5rem; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

/* =====================================================
   STILE TABELLE COMUNE (.tp-gridview)
   Usato in: home.aspx, tabellone.aspx, risultati.aspx, classifica.aspx
   ===================================================== */
.tp-gridview {
    width: 100%;
    border-collapse: collapse;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    background: white;
}

.tp-gridview th {
    background: #1e3a8a !important;
    background-color: #1e3a8a !important;
    color: white !important;
    font-weight: 600;
    text-align: center;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* Override per header generati da ASP.NET GridView */
.tp-gridview tr th,
.tp-gridview thead th,
.tp-gridview > tbody > tr:first-child > th {
    background: #1e3a8a !important;
    background-color: #1e3a8a !important;
    color: white !important;
}

.tp-gridview td {
    text-align: center;
    padding: 0.875rem 1rem;
    border-bottom: 1px solid #e5e7eb;
    vertical-align: middle;
    font-family: inherit;
    font-size: 0.9375rem;
    line-height: 1.5;
}

.tp-gridview tr:nth-child(even) td {
    background: #f9fafb;
}

.tp-gridview tr:hover td {
    background: #f0f7ff;
}

.tp-gridview a {
    color: #1e40af;
    font-weight: 500;
    text-decoration: none;
}

.tp-gridview a:hover {
    text-decoration: underline;
}

/* Footer tabella */
.tp-gridview tfoot td {
    background: #1e3a8a !important;
    color: white !important;
    font-weight: 700;
    padding: 0.75rem 1rem;
}