/* ========================================
   MATCHINGSPORTS - UNIFIED THEME
   สีส้ม #FF6B35 | สีน้ำเงิน #004E89 | ฟอนต์ขาว
   ======================================== */

:root {
    /* Primary Colors */
    --primary: #004E89;
    --primary-dark: #003366;
    --primary-light: #e3f2fd;
    
    /* Accent Colors */
    --accent: #FF6B35;
    --accent-light: #ffe0cc;
    --accent-dark: #E55100;
    
    /* Status Colors */
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    
    /* Neutral Colors */
    --dark: #1a1a1a;
    --gray-900: #212529;
    --gray-800: #343a40;
    --gray-700: #495057;
    --gray-600: #6c757d;
    --gray-500: #adb5bd;
    --gray-400: #ced4da;
    --gray-300: #dee2e6;
    --gray-200: #e9ecef;
    --gray-100: #f8f9fa;
    --white: #ffffff;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 78, 137, 0.08);
    --shadow: 0 4px 12px rgba(0, 78, 137, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 78, 137, 0.12);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--gray-100);
    color: var(--gray-900);
    line-height: 1.6;
}

body {
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--gray-700);
}

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

a:hover {
    color: var(--accent);
}

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

.navbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--white) !important;
    display: flex;
    align-items: center;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    margin-left: 1rem;
    font-weight: 500;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--accent) !important;
}

.dropdown-menu {
    background-color: var(--white);
    border: none;
    box-shadow: var(--shadow-lg);
}

.dropdown-item {
    color: var(--gray-900);
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}

/* ========================================
   MAIN NAV TABS
   ======================================== */

.main-nav-tabs {
    background-color: var(--white);
    border-bottom: 3px solid var(--primary);
    box-shadow: var(--shadow-sm);
}

.nav-tabs-wrapper {
    display: flex;
    gap: 0;
    flex-wrap: wrap;
}

.nav-tab {
    flex: 1;
    min-width: 120px;
    padding: 1rem;
    text-align: center;
    color: var(--gray-700);
    font-weight: 600;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.nav-tab:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}

.nav-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background-color: var(--primary-light);
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--gray-600);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: var(--gray-700);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ========================================
   CARDS
   ======================================== */

.card {
    background-color: var(--white);
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

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

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 1.5rem;
    border: none;
    font-weight: 700;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background-color: var(--gray-100);
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--gray-300);
}

/* ========================================
   FORMS
   ======================================== */

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    display: block;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: 6px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 78, 137, 0.1);
}

/* ========================================
   ALERTS
   ======================================== */

.alert {
    border-radius: 8px;
    border: none;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
}

/* ========================================
   TABLES
   ======================================== */

.table {
    background-color: var(--white);
    border-collapse: collapse;
}

.table thead {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.table th {
    border: none;
    padding: 12px;
    font-weight: 600;
}

.table td {
    padding: 12px;
    border-bottom: 1px solid var(--gray-300);
}

.table tbody tr:hover {
    background-color: var(--primary-light);
}

/* ========================================
   BADGES
   ======================================== */

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
}

.badge-primary {
    background-color: var(--primary-light);
    color: var(--primary);
}

.badge-accent {
    background-color: var(--accent-light);
    color: var(--accent);
}

.badge-success {
    background-color: #d4edda;
    color: #155724;
}

.badge-danger {
    background-color: #f8d7da;
    color: #721c24;
}

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

.footer {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 3rem;
}

.footer h5 {
    color: var(--white);
    margin-bottom: 1rem;
    font-weight: 700;
}

.footer p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.footer a {
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.footer a:hover {
    color: var(--white);
}

.footer-divider {
    border-color: rgba(255, 255, 255, 0.2);
    margin: 2rem 0;
}

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   SECTIONS
   ======================================== */

.section {
    padding: 3rem 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 3px solid var(--primary);
    color: var(--gray-900);
}

.section-header {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.section-header h2 {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 4rem 0;
    margin-bottom: 3rem;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.hero-text h1 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 3rem;
}

.hero-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* ========================================
   SIDEBAR
   ======================================== */

.sidebar-box {
    background-color: var(--white);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.sidebar-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
    color: var(--gray-900);
}

.sidebar-list {
    list-style: none;
}

.sidebar-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-300);
}

.sidebar-list li:last-child {
    border-bottom: none;
}

.sidebar-list a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-700);
    font-weight: 500;
}

.sidebar-list a:hover {
    color: var(--primary);
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.w-100 {
    width: 100%;
}

.ms-2 {
    margin-left: 0.5rem;
}

.mb-3 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.text-center {
    text-align: center;
}

.text-end {
    text-align: right;
}

.text-muted {
    color: var(--gray-700);
}

.d-none {
    display: none;
}

.d-md-inline {
    display: inline;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .hero-content {
        flex-direction: column;
        gap: 2rem;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .nav-tab {
        min-width: 100px;
        padding: 0.75rem 0.5rem;
        font-size: 0.85rem;
    }

    .nav-tab span {
        display: none;
    }

    .section {
        padding: 2rem 0;
    }

    .container {
        padding: 0 1rem;
    }

    .d-none.d-md-inline {
        display: none;
    }
}

@media (max-width: 576px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1rem; }

    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.5rem;
    }
}