/*
======================================================================
KICKOFF PRO CHILD - Global Design System
Premium Thai Football Portal - Single Gradient + High-End Color System

Main Gradient: Amber Gold - linear-gradient(135deg, #D97706 0%, #FBBF24 100%)
Accent: Navy Blue #0F172A
Background: Pure White #FFFFFF
======================================================================
*/

/* =====================================================================
   1. CSS VARIABLES - DESIGN TOKENS
   ===================================================================== */

:root {
    /* === MAIN GRADIENT (唯一主渐变) === */
    --kp-gradient-start: #D97706;
    --kp-gradient-end: #FBBF24;
    --kp-main-gradient: linear-gradient(135deg, #D97706 0%, #FBBF24 100%);
    
    /* === ACCENT COLOR (深邃海军蓝) === */
    --kp-navy: #0F172A;
    
    /* === BRAND COLORS === */
    --kp-primary: #D97706;
    --kp-primary-dark: #B45309;
    --kp-primary-light: #F59E0B;
    --kp-primary-glow: rgba(217, 119, 6, 0.15);
    
    /* === LIVE COLOR (正红) === */
    --kp-live: #EF4444;
    --kp-live-dark: #DC2626;
    --kp-live-light: #F87171;
    --kp-live-glow: rgba(239, 68, 68, 0.15);
    
    /* === NEUTRAL COLORS === */
    --kp-white: #FFFFFF;
    --kp-gray-50: #F8FAFC;
    --kp-gray-100: #F1F5F9;
    --kp-gray-200: #E2E8F0;
    --kp-gray-300: #CBD5E1;
    --kp-gray-400: #94A3B8;
    --kp-gray-500: #64748B;
    --kp-gray-600: #475569;
    --kp-gray-700: #334155;
    --kp-gray-800: #1E293B;
    --kp-gray-900: #0F172A;
    
    /* === TEXT COLORS (高对比度) === */
    --kp-text-primary: #0F172A;
    --kp-text-secondary: #334155;
    --kp-text-muted: #475569;
    --kp-text-inverse: #FFFFFF;
    
    /* === BACKGROUND COLORS === */
    --kp-bg-primary: #FFFFFF;
    --kp-bg-secondary: #F8FAFC;
    --kp-bg-tertiary: #F1F5F9;
    
    /* === BORDER === */
    --kp-border: #E2E8F0;
    --kp-border-light: #F1F5F9;
    
    /* === SHADOWS === */
    --kp-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --kp-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
    --kp-shadow-md: 0 8px 16px -4px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.04);
    --kp-shadow-lg: 0 16px 32px -8px rgba(15, 23, 42, 0.1), 0 8px 16px -4px rgba(15, 23, 42, 0.06);
    --kp-shadow-primary: 0 4px 12px rgba(217, 119, 6, 0.2);
    --kp-shadow-live: 0 4px 12px rgba(239, 68, 68, 0.2);
    
    /* === TYPOGRAPHY === */
    --kp-font-family: 'IBM Plex Sans Thai', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --kp-font-size-xs: 0.6875rem;
    --kp-font-size-sm: 0.8125rem;
    --kp-font-size-base: 0.9375rem;
    --kp-font-size-lg: 1.0625rem;
    --kp-font-size-xl: 1.25rem;
    --kp-font-size-2xl: 1.5rem;
    --kp-font-size-3xl: 1.875rem;
    --kp-font-size-4xl: 2.25rem;
    
    /* === FONT WEIGHTS === */
    --kp-font-normal: 400;
    --kp-font-medium: 500;
    --kp-font-semibold: 600;
    --kp-font-bold: 700;
    
    /* === LINE HEIGHTS === */
    --kp-leading-tight: 1.25;
    --kp-leading-normal: 1.5;
    --kp-leading-relaxed: 1.625;
    
    /* === SPACING === */
    --kp-space-1: 4px;
    --kp-space-2: 8px;
    --kp-space-3: 12px;
    --kp-space-4: 16px;
    --kp-space-5: 20px;
    --kp-space-6: 24px;
    --kp-space-8: 32px;
    --kp-space-10: 40px;
    --kp-space-12: 48px;
    --kp-space-16: 64px;
    
    /* === RADIUS === */
    --kp-radius-sm: 6px;
    --kp-radius: 8px;
    --kp-radius-md: 10px;
    --kp-radius-lg: 12px;
    --kp-radius-xl: 16px;
    --kp-radius-2xl: 20px;
    --kp-radius-full: 9999px;
    
    /* === TRANSITION === */
    --kp-transition-fast: 150ms ease;
    --kp-transition: 200ms ease;
    --kp-transition-slow: 300ms ease;
}

/* =====================================================================
   2. BASE RESET
   ===================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--kp-font-family);
    font-size: var(--kp-font-size-base);
    font-weight: var(--kp-font-normal);
    line-height: var(--kp-leading-normal);
    color: var(--kp-text-secondary);
    background-color: var(--kp-bg-primary);
    margin: 0;
    padding: 0;
}

/* =====================================================================
   3. TYPOGRAPHY
   ===================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--kp-font-family);
    font-weight: var(--kp-font-bold);
    line-height: var(--kp-leading-tight);
    color: var(--kp-text-primary);
    margin: 0 0 var(--kp-space-4);
}

h1 {
    font-size: var(--kp-font-size-3xl);
    letter-spacing: -0.01em;
}

h2 {
    font-size: var(--kp-font-size-2xl);
}

h3 {
    font-size: var(--kp-font-size-xl);
}

h4 {
    font-size: var(--kp-font-size-lg);
}

p {
    margin: 0 0 var(--kp-space-4);
    line-height: var(--kp-leading-relaxed);
}

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

a:hover {
    color: var(--kp-primary-dark);
}

strong, b {
    font-weight: var(--kp-font-semibold);
}

/* =====================================================================
   4. LAYOUT
   ===================================================================== */

.kp-container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--kp-space-6);
}

@media (min-width: 768px) {
    .kp-container {
        padding: 0 var(--kp-space-6);
    }
}

#primary {
    background: var(--kp-bg-primary);
}

/* =====================================================================
   5. CARDS
   ===================================================================== */

.kp-card {
    background: var(--kp-bg-primary);
    border-radius: var(--kp-radius-lg);
    border: 1px solid var(--kp-border);
    padding: var(--kp-space-5);
    box-shadow: var(--kp-shadow-sm);
    transition: all var(--kp-transition);
}

.kp-card:hover {
    box-shadow: var(--kp-shadow-md);
    transform: translateY(-2px);
}

/* =====================================================================
   6. BUTTONS
   ===================================================================== */

.kp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--kp-space-2);
    padding: var(--kp-space-3) var(--kp-space-5);
    font-family: var(--kp-font-family);
    font-size: var(--kp-font-size-sm);
    font-weight: var(--kp-font-semibold);
    line-height: 1;
    text-decoration: none;
    border: none;
    border-radius: var(--kp-radius-full);
    cursor: pointer;
    transition: all var(--kp-transition);
    white-space: nowrap;
}

.kp-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.kp-btn-sm {
    padding: var(--kp-space-2) var(--kp-space-4);
    font-size: var(--kp-font-size-xs);
}

.kp-btn-lg {
    padding: var(--kp-space-4) var(--kp-space-8);
    font-size: var(--kp-font-size-base);
}

.kp-btn-primary {
    background: var(--kp-main-gradient);
    color: var(--kp-text-inverse);
}

.kp-btn-primary:hover {
    background: var(--kp-primary-dark);
    box-shadow: var(--kp-shadow-primary);
    transform: translateY(-1px);
}

.kp-btn-secondary {
    background: var(--kp-bg-secondary);
    color: var(--kp-text-secondary);
    border: 1px solid var(--kp-border);
}

.kp-btn-secondary:hover {
    background: var(--kp-bg-tertiary);
    border-color: var(--kp-primary);
    color: var(--kp-primary);
}

/* Pill Buttons */
.kp-btn-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--kp-space-2);
    padding: var(--kp-space-2) var(--kp-space-4);
    font-family: var(--kp-font-family);
    font-size: var(--kp-font-size-sm);
    font-weight: var(--kp-font-medium);
    border-radius: var(--kp-radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--kp-transition);
}

.kp-btn-pill-primary {
    background: var(--kp-main-gradient);
    color: var(--kp-text-inverse);
}

.kp-btn-pill-primary:hover {
    background: var(--kp-primary-dark);
}

.kp-btn-pill-secondary {
    background: var(--kp-bg-secondary);
    color: var(--kp-text-secondary);
    border: 1px solid var(--kp-border);
}

/* =====================================================================
   7. BADGES
   ===================================================================== */

.kp-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--kp-space-1) var(--kp-space-3);
    font-size: var(--kp-font-size-xs);
    font-weight: var(--kp-font-semibold);
    border-radius: var(--kp-radius-full);
    line-height: 1.4;
}

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

.kp-badge-accent {
    background: var(--kp-live-glow);
    color: var(--kp-live);
}

/* =====================================================================
   8. LIVE INDICATOR
   ===================================================================== */

.kp-live-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--kp-space-1);
    padding: var(--kp-space-1) var(--kp-space-2);
    background: var(--kp-live);
    color: var(--kp-text-inverse);
    font-size: var(--kp-font-size-xs);
    font-weight: var(--kp-font-bold);
    border-radius: var(--kp-radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.kp-live-badge-premium {
    display: inline-flex;
    align-items: center;
    gap: var(--kp-space-1);
    padding: var(--kp-space-1) var(--kp-space-3);
    background: var(--kp-live);
    color: var(--kp-text-inverse);
    font-size: var(--kp-font-size-xs);
    font-weight: var(--kp-font-bold);
    border-radius: var(--kp-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.kp-live-dot {
    width: 6px;
    height: 6px;
    background: var(--kp-text-inverse);
    border-radius: 50%;
    animation: livePulse 1.5s ease-in-out infinite;
}

.kp-live-dot-pulse {
    width: 8px;
    height: 8px;
    background: var(--kp-text-inverse);
    border-radius: 50%;
    animation: livePulse 1.5s ease-in-out infinite;
}

@keyframes livePulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(0.85);
    }
}

/* =====================================================================
   9. TABS
   ===================================================================== */

.kp-tabs {
    display: flex;
    gap: var(--kp-space-2);
    border-bottom: 2px solid var(--kp-border);
}

.kp-tab {
    display: inline-flex;
    align-items: center;
    gap: var(--kp-space-2);
    padding: var(--kp-space-3) var(--kp-space-5);
    font-size: var(--kp-font-size-sm);
    font-weight: var(--kp-font-medium);
    color: var(--kp-text-muted);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--kp-transition);
}

.kp-tab:hover {
    color: var(--kp-primary);
}

.kp-tab.active {
    color: var(--kp-primary);
    border-bottom-color: var(--kp-primary);
    font-weight: var(--kp-font-semibold);
}

.kp-tab-content {
    display: none;
    padding: var(--kp-space-5) 0;
}

.kp-tab-content.active {
    display: block;
}

/* =====================================================================
   10. TABLES
   ===================================================================== */

.kp-table {
    width: 100%;
    border-collapse: collapse;
}

.kp-table th {
    padding: var(--kp-space-3) var(--kp-space-4);
    text-align: left;
    font-size: var(--kp-font-size-xs);
    font-weight: var(--kp-font-semibold);
    color: var(--kp-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--kp-bg-secondary);
    border-bottom: 1px solid var(--kp-border);
}

.kp-table td {
    padding: var(--kp-space-4);
    font-size: var(--kp-font-size-sm);
    color: var(--kp-text-secondary);
    border-bottom: 1px solid var(--kp-border-light);
    vertical-align: middle;
}

.kp-table tbody tr:hover {
    background: var(--kp-primary-glow);
}

.kp-table tbody tr:nth-child(even) {
    background: var(--kp-bg-secondary);
}

/* =====================================================================
   11. FORMS
   ===================================================================== */

.kp-input,
.kp-select,
.kp-textarea {
    width: 100%;
    padding: var(--kp-space-3) var(--kp-space-4);
    font-family: var(--kp-font-family);
    font-size: var(--kp-font-size-sm);
    color: var(--kp-text-primary);
    background: var(--kp-bg-primary);
    border: 1px solid var(--kp-border);
    border-radius: var(--kp-radius-md);
    transition: all var(--kp-transition-fast);
}

.kp-input:focus,
.kp-select:focus,
.kp-textarea:focus {
    outline: none;
    border-color: var(--kp-primary);
    box-shadow: 0 0 0 3px var(--kp-primary-glow);
}

/* =====================================================================
   12. GRID SYSTEMS
   ===================================================================== */

.kp-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--kp-space-5);
}

.kp-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--kp-space-5);
}

.kp-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--kp-space-5);
}

.kp-grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--kp-space-5);
}

@media (max-width: 1024px) {
    .kp-grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .kp-grid-3,
    .kp-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .kp-grid-2,
    .kp-grid-3,
    .kp-grid-4 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .kp-container {
        padding-left: 12px;
        padding-right: 12px;
    }

    .kp-page-header {
        padding: 24px 0;
    }

    .kp-page-header .kp-page-title {
        font-size: 22px;
    }

    .kp-page-header .kp-page-desc {
        font-size: 14px;
    }

    .kp-card {
        border-radius: 10px;
    }

    .kp-btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    .kp-btn-sm {
        padding: 5px 10px;
        font-size: 11px;
    }

    .kp-table {
        font-size: 13px;
    }

    .kp-table th,
    .kp-table td {
        padding: 8px 10px;
    }

    .kp-badge {
        font-size: 11px;
        padding: 2px 8px;
    }

    .kp-section {
        padding: 24px 0;
    }

    .kp-tabs {
        gap: 4px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .kp-tabs::-webkit-scrollbar {
        display: none;
    }

    .kp-tab {
        padding: 8px 14px;
        font-size: 13px;
        white-space: nowrap;
        flex-shrink: 0;
    }

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

@media (max-width: 480px) {
    .kp-container {
        padding-left: 10px;
        padding-right: 10px;
    }

    .kp-page-header .kp-page-title {
        font-size: 19px;
    }

    .kp-btn {
        padding: 10px 18px;
        font-size: 12px;
        min-height: 44px;
    }

    .kp-btn-sm {
        padding: 8px 14px;
        font-size: 11px;
        min-height: 44px;
    }

    .kp-table {
        font-size: 12px;
    }

    .kp-table th,
    .kp-table td {
        padding: 6px 8px;
    }

    .kp-tab {
        padding: 6px 10px;
        font-size: 12px;
    }

    h1 { font-size: 1.3rem; }
    h2 { font-size: 1.1rem; }
    h3 { font-size: 1rem; }

    .kp-badge {
        font-size: 11px;
        min-height: 24px;
    }
    .kp-tab {
        min-height: 44px;
    }
}

/* =====================================================================
   13. UTILITY CLASSES
   ===================================================================== */

/* Text Colors */
.kp-text-primary { color: var(--kp-text-primary) !important; }
.kp-text-secondary { color: var(--kp-text-secondary) !important; }
.kp-text-muted { color: var(--kp-text-muted) !important; }
.kp-text-accent { color: var(--kp-live) !important; }
.kp-text-gold { color: var(--kp-primary) !important; }

/* Background Colors */
.kp-bg-white { background-color: var(--kp-bg-primary) !important; }
.kp-bg-gray { background-color: var(--kp-bg-secondary) !important; }

/* Text Alignment */
.kp-text-center { text-align: center !important; }
.kp-text-left { text-align: left !important; }
.kp-text-right { text-align: right !important; }

/* Font Weights */
.kp-font-medium { font-weight: var(--kp-font-medium) !important; }
.kp-font-semibold { font-weight: var(--kp-font-semibold) !important; }
.kp-font-bold { font-weight: var(--kp-font-bold) !important; }

/* Border Radius */
.kp-rounded-sm { border-radius: var(--kp-radius-sm) !important; }
.kp-rounded { border-radius: var(--kp-radius) !important; }
.kp-rounded-lg { border-radius: var(--kp-radius-lg) !important; }
.kp-rounded-full { border-radius: var(--kp-radius-full) !important; }

/* Shadows */
.kp-shadow-sm { box-shadow: var(--kp-shadow-sm) !important; }
.kp-shadow { box-shadow: var(--kp-shadow) !important; }
.kp-shadow-md { box-shadow: var(--kp-shadow-md) !important; }
.kp-shadow-primary { box-shadow: var(--kp-shadow-primary) !important; }
.kp-shadow-live { box-shadow: var(--kp-shadow-live) !important; }

/* Flex */
.kp-flex { display: flex !important; }
.kp-flex-col { flex-direction: column !important; }
.kp-items-center { align-items: center !important; }
.kp-items-start { align-items: flex-start !important; }
.kp-items-end { align-items: flex-end !important; }
.kp-justify-center { justify-content: center !important; }
.kp-justify-between { justify-content: space-between !important; }
.kp-flex-1 { flex: 1 !important; }
.kp-flex-wrap { flex-wrap: wrap !important; }
.kp-gap-1 { gap: var(--kp-space-1) !important; }
.kp-gap-2 { gap: var(--kp-space-2) !important; }
.kp-gap-3 { gap: var(--kp-space-3) !important; }
.kp-gap-4 { gap: var(--kp-space-4) !important; }
.kp-gap-5 { gap: var(--kp-space-5) !important; }

/* Width */
.kp-w-full { width: 100% !important; }
.kp-min-h-screen { min-height: 100vh !important; }

/* Display */
.kp-hidden { display: none !important; }
.kp-block { display: block !important; }
.kp-inline-flex { display: inline-flex !important; }

/* Position */
.kp-relative { position: relative !important; }
.kp-absolute { position: absolute !important; }

/* Transitions */
.kp-transition { transition: all var(--kp-transition) !important; }
.kp-transition-fast { transition: all var(--kp-transition-fast) !important; }

/* Hover Effects */
.kp-hover-lift:hover {
    transform: translateY(-2px);
    box-shadow: var(--kp-shadow-md);
}

.kp-hover-scale:hover {
    transform: scale(1.02);
}

/* =====================================================================
   14. SCROLLBAR
   ===================================================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--kp-bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--kp-gray-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--kp-gray-400);
}

/* =====================================================================
   15. SELECTION
   ===================================================================== */

::selection {
    background: var(--kp-primary-glow);
    color: var(--kp-primary-dark);
}

/* =====================================================================
   16. FOCUS STATES
   ===================================================================== */

:focus-visible {
    outline: 2px solid var(--kp-primary);
    outline-offset: 2px;
}

/* =====================================================================
   17. ANIMATIONS
   ===================================================================== */

@keyframes kp-fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes kp-slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.kp-animate-fadeIn {
    animation: kp-fadeIn var(--kp-transition) ease forwards;
}

.kp-animate-slideUp {
    animation: kp-slideUp var(--kp-transition) ease forwards;
}