/* ================================================
   ANDROID-STYLE UNIFIED THEME FOR LUDO CITY APP
   Material Design 3 Inspired
   ================================================ */

:root {
    /* Color Palette */
    --primary-color: #ff4b5c;
    --primary-dark: #e63946;
    --primary-light: #ff7a8a;
    --accent-color: #ffd700;
    --accent-dark: #ffb700;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --info-color: #2196f3;
    
    /* Dark Theme Colors */
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #2d2d44;
    --bg-surface: #16213e;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b0b0c0;
    --text-tertiary: #808090;
    
    /* Border & Shadow */
    --border-color: #2d2d44;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    
    /* Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Typography */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
}

/* ================================================
   GLOBAL STYLES
   ================================================ */

* {
    outline: none;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    -webkit-touch-callout: none;
    -ms-touch-action: manipulation;
    touch-action: manipulation;
    transition: all 0.3s ease;
}

a:active {
    opacity: 0.7;
}

/* ================================================
   APP HEADER (Android Top Bar)
   ================================================ */

.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-secondary) 100%);
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.header-back-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: var(--font-size-lg);
    transition: background-color 0.2s ease;
}

.header-back-btn:active {
    background-color: rgba(255, 75, 92, 0.1);
}

.app-title {
    flex: 1;
    text-align: center;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.header-icon-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: var(--font-size-lg);
    transition: background-color 0.2s ease;
}

.header-icon-btn:active {
    background-color: rgba(255, 75, 92, 0.1);
}

/* ================================================
   BOTTOM NAVIGATION BAR (Android Style)
   ================================================ */

.app-navbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 65px;
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-secondary) 100%);
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    padding: 0 5px;
    border-top: 1px solid var(--border-color);
}

.app-navbar .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    color: var(--text-tertiary);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    flex: 1;
    max-width: 72px;
}

.app-navbar .nav-item:active {
    transform: scale(0.95);
}

.app-navbar .nav-item.active,
.app-navbar .nav-item:hover {
    color: var(--accent-color);
}

.app-navbar .nav-item-icon {
    font-size: 22px;
    transition: transform 0.3s ease;
}

.app-navbar .nav-item.active .nav-item-icon,
.app-navbar .nav-item:hover .nav-item-icon {
    transform: scale(1.1);
}

.app-navbar .nav-item-label {
    font-size: var(--font-size-xs);
    font-weight: 500;
    white-space: nowrap;
}

/* ================================================
   MAIN CONTENT AREA
   ================================================ */

.app-main {
    position: relative;
    margin-top: 56px;
    margin-bottom: 0;
    min-height: calc(100vh - 56px);
    padding-bottom: 100px;
}

.page-container {
    width: 100%;
    max-width: 100%;
    padding: var(--spacing-md);
}

/* ================================================
   CARDS & CONTAINERS
   ================================================ */

.card {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.card:active {
    transform: translateY(2px);
    box-shadow: none;
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.card-header-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-body {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.card-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-sm);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    font-family: var(--font-family);
    -webkit-user-select: none;
    user-select: none;
}

.btn:active {
    transform: scale(0.98);
}

/* Button Variants */

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

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:active {
    background-color: rgba(255, 75, 92, 0.1);
}

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

.btn-success:active {
    background-color: #45a049;
}

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

.btn-danger:active {
    background-color: #da190b;
}

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

.btn-warning:active {
    background-color: #e68900;
}

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

.btn-info:active {
    background-color: #0b7dda;
}

.btn-lg {
    padding: 14px 28px;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 8px 12px;
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
    display: flex;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
}

/* ================================================
   INPUTS & FORMS
   ================================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 75, 92, 0.1);
}

.form-control::placeholder {
    color: var(--text-tertiary);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

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

.match-card {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-surface) 100%);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    cursor: pointer;
}

.match-card:active {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.match-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.match-header-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: white;
    flex-shrink: 0;
}

.match-header-info {
    flex: 1;
}

.match-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 4px 0;
}

.match-time {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin: 0;
}

.match-status {
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    background-color: rgba(255, 75, 92, 0.2);
    color: var(--primary-light);
    white-space: nowrap;
}

.match-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.match-info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.match-info-label {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.match-info-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--accent-color);
}

.match-progress {
    width: 100%;
    height: 4px;
    background-color: var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.match-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transition: width 0.3s ease;
}

.match-players {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.match-player {
    flex: 0 0 calc(50% - var(--spacing-sm));
    padding: var(--spacing-sm);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-align: center;
}

/* ================================================
   NAVIGATION BAR (Bottom)
   ================================================ */

.app-navbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    height: 60px;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.3);
    z-index: 999;
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: var(--text-tertiary);
    text-decoration: none;
    font-size: var(--font-size-xs);
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    background: none;
    font-family: var(--font-family);
}

.nav-item:active {
    color: var(--primary-color);
}

.nav-item.active {
    color: var(--primary-color);
}

.nav-item-icon {
    font-size: var(--font-size-xl);
}

.nav-item-label {
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.nav-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background-color: var(--danger-color);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
}

/* ================================================
   MODALS & DIALOGS
   ================================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--spacing-md);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    max-width: 90%;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(100px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close-btn:active {
    color: var(--text-primary);
}

/* ================================================
   ALERTS & MESSAGES
   ================================================ */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.alert-icon {
    font-size: var(--font-size-lg);
    flex-shrink: 0;
    margin-top: 2px;
}

.alert-success {
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-warning {
    background-color: rgba(255, 152, 0, 0.1);
    color: var(--warning-color);
    border-left: 4px solid var(--warning-color);
}

.alert-danger {
    background-color: rgba(244, 67, 54, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.alert-info {
    background-color: rgba(33, 150, 243, 0.1);
    color: var(--info-color);
    border-left: 4px solid var(--info-color);
}

/* ================================================
   BADGES & TAGS
   ================================================ */

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    white-space: nowrap;
}

.badge-primary {
    background-color: rgba(255, 75, 92, 0.2);
    color: var(--primary-light);
}

.badge-success {
    background-color: rgba(76, 175, 80, 0.2);
    color: var(--success-color);
}

.badge-warning {
    background-color: rgba(255, 152, 0, 0.2);
    color: var(--warning-color);
}

.badge-danger {
    background-color: rgba(244, 67, 54, 0.2);
    color: var(--danger-color);
}

/* ================================================
   LOADING & ANIMATIONS
   ================================================ */

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: var(--spacing-lg) auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loader {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
}

.shimmer {
    animation: shimmer 2s infinite;
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-surface) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

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

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

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

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

.hidden { display: none !important; }
.visible { display: block !important; }

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

@media (max-width: 480px) {
    :root {
        --font-size-base: 15px;
        --spacing-md: 12px;
        --spacing-lg: 16px;
    }
    
    .app-header {
        height: 48px;
        padding: 0 12px;
    }
    
    .app-title {
        font-size: var(--font-size-base);
    }
    
    .btn {
        padding: 10px 16px;
        font-size: var(--font-size-sm);
    }
    
    .card {
        padding: var(--spacing-md);
    }
}

@media (max-width: 360px) {
    :root {
        --spacing-sm: 6px;
        --spacing-md: 8px;
    }
    
    .match-info {
        grid-template-columns: 1fr;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }
}