/**
 * Airsoft Battle Teams - Design System
 * Tema Militar - CSS Principal
 */

/* ================================
   CSS VARIABLES
================================ */
:root {
    /* Paleta Militar */
    --olive: #4A5D23;
    --olive-dark: #3A4A1C;
    --olive-light: #5B7028;
    --forest: #2D3A1B;
    --forest-dark: #1E2712;
    --khaki: #C4B896;
    --khaki-light: #D4CBA8;
    --sand: #E8DFC7;
    --black: #1A1A1A;
    --charcoal: #2D2D2D;
    --gray-dark: #3D3D3D;
    --gray: #6B6B6B;
    --gray-light: #999999;
    --white: #FAFAFA;
    
    /* Alertas */
    --danger: #8B0000;
    --danger-light: #A52A2A;
    --warning: #B8860B;
    --success: #228B22;
    --info: #2F4F4F;
    
    /* Gradientes */
    --gradient-military: linear-gradient(135deg, var(--forest) 0%, var(--olive) 50%, var(--olive-light) 100%);
    --gradient-dark: linear-gradient(180deg, var(--charcoal) 0%, var(--black) 100%);
    --gradient-card: linear-gradient(145deg, rgba(45, 58, 27, 0.9) 0%, rgba(74, 93, 35, 0.8) 100%);
    
    /* Espaçamentos */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 20px rgba(74, 93, 35, 0.5);
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Fontes */
    --font-main: 'Rajdhani', 'Segoe UI', sans-serif;
    --font-heading: 'Orbitron', 'Rajdhani', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

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

body {
    font-family: var(--font-main);
    background: var(--gradient-dark);
    color: var(--white);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Background Texture */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(74, 93, 35, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(45, 58, 27, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

a { color: var(--khaki); text-decoration: none; transition: var(--transition-fast); }
a:hover { color: var(--khaki-light); }

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

/* ================================
   TYPOGRAPHY
================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    line-height: 1.2;
}

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

.text-olive { color: var(--olive-light); }
.text-khaki { color: var(--khaki); }
.text-muted { color: var(--gray-light); }
.text-danger { color: var(--danger-light); }
.text-success { color: var(--success); }

/* ================================
   LAYOUT CONTAINERS
================================ */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: var(--forest-dark);
    border-right: 2px solid var(--olive-dark);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: var(--transition-normal);
}

.main-content {
    flex: 1;
    margin-left: 280px;
    padding: var(--spacing-xl);
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ================================
   SIDEBAR NAVIGATION
================================ */
.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--olive-dark);
    text-align: center;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.sidebar-logo img {
    width: 50px;
    height: 50px;
}

.sidebar-logo h1 {
    font-size: 1.1rem;
    color: var(--khaki);
    margin: 0;
}

.nav-menu {
    list-style: none;
    padding: var(--spacing-md) 0;
}

.nav-item {
    margin: var(--spacing-xs) var(--spacing-sm);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--gray-light);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.nav-link:hover,
.nav-link.active {
    background: var(--gradient-card);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.nav-link.active {
    border-left: 3px solid var(--khaki);
}

.nav-link i {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

/* User Profile in Sidebar */
.sidebar-user {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--olive-dark);
    margin-top: auto;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--forest-dark);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: 2px solid var(--olive);
    object-fit: cover;
    background: var(--charcoal);
}

.user-details h4 {
    font-size: 0.95rem;
    color: var(--white);
    margin-bottom: 2px;
}

.user-details span {
    font-size: 0.8rem;
    color: var(--gray-light);
}

/* ================================
   CARDS
================================ */
.card {
    background: var(--gradient-card);
    border: 1px solid var(--olive-dark);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(196, 184, 150, 0.2);
}

.card-title {
    font-size: 1.1rem;
    color: var(--khaki);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-body {
    color: var(--white);
}

/* Stat Cards */
.stat-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--khaki);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gray-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ================================
   BUTTONS
================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--khaki);
    border: 2px solid var(--olive);
}

.btn-secondary:hover {
    background: var(--olive);
    color: var(--white);
}

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

.btn-danger:hover {
    background: var(--danger-light);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* ================================
   FORMS
================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--khaki);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--charcoal);
    border: 2px solid var(--gray-dark);
    border-radius: var(--radius-md);
    color: var(--white);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--olive);
    box-shadow: 0 0 0 3px rgba(74, 93, 35, 0.3);
}

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

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23999' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

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

.form-error {
    color: var(--danger-light);
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
}

/* ================================
   TABLES
================================ */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
}

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

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--gray-dark);
}

.table th {
    background: var(--forest);
    color: var(--khaki);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table tbody tr:hover {
    background: rgba(74, 93, 35, 0.2);
}

/* Ranking Position */
.rank-position {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
}

.rank-1 { background: linear-gradient(135deg, #FFD700, #FFA500); color: #000; }
.rank-2 { background: linear-gradient(135deg, #C0C0C0, #A8A8A8); color: #000; }
.rank-3 { background: linear-gradient(135deg, #CD7F32, #8B4513); color: #fff; }
.rank-default { background: var(--gray-dark); color: var(--gray-light); }

/* ================================
   BADGES & TAGS
================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-olive { background: var(--olive); color: var(--white); }
.badge-khaki { background: var(--khaki); color: var(--black); }
.badge-danger { background: var(--danger); color: var(--white); }
.badge-success { background: var(--success); color: var(--white); }
.badge-warning { background: var(--warning); color: var(--black); }

.team-tag {
    font-family: var(--font-mono);
    padding: 2px 8px;
    background: var(--olive-dark);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--khaki);
}

/* ================================
   MODALS
================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--charcoal);
    border: 2px solid var(--olive);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(-20px);
    transition: var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--olive-dark);
}

.modal-header h3 {
    color: var(--khaki);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--white);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--olive-dark);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* ================================
   ALERTS & NOTIFICATIONS
================================ */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.alert-success {
    background: rgba(34, 139, 34, 0.2);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-danger {
    background: rgba(139, 0, 0, 0.2);
    border: 1px solid var(--danger);
    color: var(--danger-light);
}

.alert-warning {
    background: rgba(184, 134, 11, 0.2);
    border: 1px solid var(--warning);
    color: var(--warning);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--charcoal);
    border-left: 4px solid var(--olive);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    min-width: 300px;
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ================================
   LOADING STATES
================================ */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-dark);
    border-top-color: var(--khaki);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-lg {
    width: 40px;
    height: 40px;
    border-width: 3px;
}

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

.skeleton {
    background: linear-gradient(90deg, var(--gray-dark) 25%, var(--charcoal) 50%, var(--gray-dark) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

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

/* ================================
   GRID SYSTEM
================================ */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

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

/* ================================
   UTILITIES
================================ */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-gap { gap: var(--spacing-md); }
.flex-wrap { flex-wrap: wrap; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

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

.hidden { display: none !important; }

/* ================================
   AUTH PAGES
================================ */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.auth-container {
    width: 100%;
    max-width: 450px;
}

.auth-card {
    background: var(--gradient-card);
    border: 2px solid var(--olive);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--khaki);
    margin-bottom: var(--spacing-sm);
}

.auth-subtitle {
    color: var(--gray-light);
    font-size: 0.95rem;
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-lg) 0;
    color: var(--gray);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-dark);
}

.auth-divider span {
    padding: 0 var(--spacing-md);
    font-size: 0.85rem;
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    color: var(--gray-light);
}

/* ================================
   PAGE HEADER
================================ */
.page-header {
    margin-bottom: var(--spacing-xl);
}

.page-title {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: var(--spacing-xs);
}

.page-subtitle {
    color: var(--gray-light);
    font-size: 1rem;
}

/* ================================
   RESPONSIVE
================================ */
@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    .auth-card {
        padding: var(--spacing-lg);
    }
    
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
    
    .stat-value { font-size: 2rem; }
}

/* ================================
   PLAYER/TEAM CARDS
================================ */
.player-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(0,0,0,0.2);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.player-card:hover {
    background: rgba(74, 93, 35, 0.3);
}

.player-avatar-sm {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--olive);
    object-fit: cover;
}

.player-info h4 {
    font-size: 0.95rem;
    color: var(--white);
    margin-bottom: 2px;
}

.player-info span {
    font-size: 0.8rem;
    color: var(--gray-light);
}

/* Match Cards */
.match-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    background: rgba(0,0,0,0.2);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--olive);
}

.match-teams {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    font-weight: 600;
}

.match-vs {
    color: var(--khaki);
    font-size: 0.85rem;
}

.match-info {
    text-align: right;
    color: var(--gray-light);
    font-size: 0.85rem;
}

.match-date {
    color: var(--khaki);
    font-weight: 600;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--gray-light);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700&family=Rajdhani:wght@400;500;600;700&display=swap');