/* ==============================================
   SISTEMA DE OLIMPÍADAS - DESIGN PROFISSIONAL
   Tema Inspirado nos Jogos Olímpicos
   ============================================== */

/* ============================================
   VARIÁVEIS CSS - CORES OLÍMPICAS
   ============================================ */
:root {
    /* Cores Olímpicas Principais */
    --olympic-blue: #0085C7;
    --olympic-yellow: #F4C300;
    --olympic-black: #1a1d29;
    --olympic-green: #00A651;
    --olympic-red: #EE334E;

    /* Cores do Sistema */
    --primary-color: #0066CC;
    --primary-dark: #004C99;
    --primary-light: #3399FF;
    --secondary-color: #00A651;
    --accent-color: #F4C300;
    --danger-color: #EE334E;
    --warning-color: #FF6B35;
    --success-color: #00A651;
    --info-color: #0085C7;

    /* Cores de Medalhas */
    --gold: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    --silver: linear-gradient(135deg, #C0C0C0 0%, #E8E8E8 100%);
    --bronze: linear-gradient(135deg, #CD7F32 0%, #B87333 100%);
    --gold-solid: #FFD700;
    --silver-solid: #C0C0C0;
    --bronze-solid: #CD7F32;

    /* Cores Neutras */
    --dark-color: #1a1d29;
    --text-color: #2c3e50;
    --text-light: #ffffff;
    --text-muted: #6c757d;
    --light-color: #f8f9fa;
    --border-color: #dee2e6;
    --bg-overlay: rgba(0, 0, 0, 0.5);

    /* Tipografia */
    --font-main: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Segoe UI Semibold', 'Arial Black', sans-serif;
    --font-size-base: 14px;
    --font-size-sm: 12px;
    --font-size-lg: 16px;
    --font-size-xl: 20px;

    /* Espaçamentos */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.2);
    --shadow-olympic: 0 10px 30px rgba(0, 102, 204, 0.3);

    /* Bordas */
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transições */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 400ms ease-in-out;

    /* Layout */
    --header-height: 84px;
}

/* ============================================
   RESET E BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-color);
    line-height: 1.6;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* ============================================
   TIPOGRAFIA
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-color);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--olympic-blue) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 1.5rem;
    color: var(--olympic-blue);
}

h3 {
    font-size: 1.2rem;
}

/* ============================================
   CONTAINERS
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

/* ============================================
   HEADER - ESTILO OLÍMPICO
   ============================================ */
.header {
    background: linear-gradient(135deg, var(--olympic-blue) 0%, var(--primary-dark) 100%);
    color: var(--text-light);
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow-olympic);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 4px solid var(--olympic-yellow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: var(--text-light);
    background: none;
    -webkit-text-fill-color: currentColor;
    font-size: 1.75rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header h1::before {
    content: "🏅";
    font-size: 2rem;
    animation: rotate 3s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

.user-avatar {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--olympic-yellow) 0%, var(--accent-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--dark-color);
    box-shadow: var(--shadow-md);
    border: 3px solid rgba(255, 255, 255, 0.3);
}

/* ============================================
   SIDEBAR - NAVEGAÇÃO OLÍMPICA
   ============================================ */
.sidebar {
    position: fixed;
    left: 0;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    width: 280px;
    background: linear-gradient(180deg, #1a1d29 0%, #2c3e50 100%);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    overflow-y: auto;
    z-index: 999;
}

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

.sidebar-menu li {
    margin-bottom: var(--spacing-sm);
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border-radius: var(--radius);
    transition: all var(--transition-base);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.sidebar-menu a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: var(--olympic-yellow);
    transform: scaleY(0);
    transition: transform var(--transition-base);
}

.sidebar-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    transform: translateX(5px);
}

.sidebar-menu a:hover::before {
    transform: scaleY(1);
}

.sidebar-menu a.active {
    background: linear-gradient(135deg, var(--olympic-blue) 0%, var(--primary-color) 100%);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

.sidebar-menu a.active::before {
    transform: scaleY(1);
    background: var(--olympic-yellow);
}

.sidebar-menu a i {
    font-size: 1.5rem;
    width: 30px;
    text-align: center;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
    margin-left: 280px;
    padding: var(--spacing-xl);
    min-height: 100vh;
}

/* ============================================
   CARDS - ESTILO OLÍMPICO
   ============================================ */
.card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    background: linear-gradient(135deg, var(--olympic-blue) 0%, var(--primary-dark) 100%);
    color: var(--text-light);
    padding: var(--spacing-lg);
    border-bottom: 3px solid var(--olympic-yellow);
}

.card-header h2,
.card-header h3 {
    color: var(--text-light);
    margin-bottom: 0;
    font-size: 1.2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.card-body {
    padding: var(--spacing-xl);
}

/* ============================================
   STATS CARDS - OLIMPÍADAS
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    border-left: 5px solid var(--primary-color);
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(0, 102, 204, 0.1) 0%, transparent 70%);
    transform: translate(30%, -30%);
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.stat-card.primary {
    border-left-color: var(--olympic-blue);
    background: linear-gradient(135deg, #ffffff 0%, rgba(0, 133, 199, 0.05) 100%);
}

.stat-card.success {
    border-left-color: var(--success-color);
    background: linear-gradient(135deg, #ffffff 0%, rgba(0, 166, 81, 0.05) 100%);
}

.stat-card.warning {
    border-left-color: var(--warning-color);
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 107, 53, 0.05) 100%);
}

.stat-card.danger {
    border-left-color: var(--danger-color);
    background: linear-gradient(135deg, #ffffff 0%, rgba(238, 51, 78, 0.05) 100%);
}

.stat-card.info {
    border-left-color: var(--info-color);
    background: linear-gradient(135deg, #ffffff 0%, rgba(0, 133, 199, 0.05) 100%);
}

.stat-card.secondary {
    border-left-color: var(--text-muted);
    background: linear-gradient(135deg, #ffffff 0%, rgba(108, 117, 125, 0.05) 100%);
}

.stat-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.stat-card-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card-icon {
    font-size: 2rem;
    opacity: 0.6;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.1));
}

.stat-card-value {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--dark-color);
    line-height: 1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.05);
}

/* ============================================
   BUTTONS - ESTILO OLÍMPICO
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 28px;
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

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

.btn-primary {
    background: linear-gradient(135deg, var(--olympic-blue) 0%, var(--primary-dark) 100%);
    color: var(--text-light);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--olympic-blue) 100%);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #00854d 100%);
    color: var(--text-light);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #cc2a42 100%);
    color: var(--text-light);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #ff5722 100%);
    color: var(--text-light);
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #5a6268 100%);
    color: var(--text-light);
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #006ba3 100%);
    color: var(--text-light);
}

.btn-sm {
    padding: 8px 18px;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 16px 36px;
    font-size: var(--font-size-lg);
}

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ============================================
   TABLES - PROFISSIONAL
   ============================================ */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: #ffffff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

thead {
    background: linear-gradient(135deg, var(--dark-color) 0%, #2c3e50 100%);
    color: var(--text-light);
}

thead th {
    padding: var(--spacing-lg);
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
    border-bottom: 3px solid var(--olympic-yellow);
}

tbody tr {
    transition: all var(--transition-fast);
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background: linear-gradient(90deg, rgba(0, 102, 204, 0.05) 0%, transparent 100%);
    transform: scale(1.01);
}

tbody td {
    padding: var(--spacing-lg);
    vertical-align: middle;
}

.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius);
}

/* ============================================
   BADGES - MEDALHAS OLÍMPICAS
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
}

.badge-primary {
    background: linear-gradient(135deg, var(--olympic-blue) 0%, var(--primary-color) 100%);
    color: var(--text-light);
}

.badge-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #00854d 100%);
    color: var(--text-light);
}

.badge-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #cc2a42 100%);
    color: var(--text-light);
}

.badge-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #ff5722 100%);
    color: var(--text-light);
}

.badge-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #006ba3 100%);
    color: var(--text-light);
}

.badge-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #5a6268 100%);
    color: var(--text-light);
}

.badge-gold {
    background: var(--gold);
    color: var(--dark-color);
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.4);
}

.badge-silver {
    background: var(--silver);
    color: var(--dark-color);
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(192, 192, 192, 0.4);
}

.badge-bronze {
    background: var(--bronze);
    color: var(--text-light);
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(205, 127, 50, 0.4);
}

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

.form-row {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--dark-color);
    font-size: 0.95rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="datetime-local"],
input[type="url"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: var(--font-size-base);
    font-family: var(--font-main);
    transition: all var(--transition-base);
    background: #ffffff;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--olympic-blue);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

/* ============================================
   MODAL - PROFISSIONAL
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    animation: fadeIn var(--transition-base);
}

.modal.active {
    display: flex;
}

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

.modal-content {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp var(--transition-slow);
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    background: linear-gradient(135deg, var(--olympic-blue) 0%, var(--primary-dark) 100%);
    color: var(--text-light);
    padding: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 3px solid var(--olympic-yellow);
}

.modal-header h2 {
    color: var(--text-light);
    margin: 0;
}

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

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

.close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--text-light);
    font-size: 2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    animation: slideInRight var(--transition-base);
}

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

.alert-success {
    background: linear-gradient(135deg, rgba(0, 166, 81, 0.1) 0%, rgba(0, 166, 81, 0.05) 100%);
    border-left: 4px solid var(--success-color);
    color: #00854d;
}

.alert-error,
.alert-danger {
    background: linear-gradient(135deg, rgba(238, 51, 78, 0.1) 0%, rgba(238, 51, 78, 0.05) 100%);
    border-left: 4px solid var(--danger-color);
    color: #cc2a42;
}

.alert-warning {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(255, 107, 53, 0.05) 100%);
    border-left: 4px solid var(--warning-color);
    color: #ff5722;
}

.alert-info {
    background: linear-gradient(135deg, rgba(0, 133, 199, 0.1) 0%, rgba(0, 133, 199, 0.05) 100%);
    border-left: 4px solid var(--info-color);
    color: #006ba3;
}

.alert-icon {
    font-size: 1.5rem;
}

/* ============================================
   UTILITIES
   ============================================ */
.row {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.col {
    flex: 1;
}

.col-6 {
    flex: 0 0 calc(50% - var(--spacing-lg) / 2);
}

.col-4 {
    flex: 0 0 calc(33.333% - var(--spacing-lg) * 2 / 3);
}

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

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

.mb-3 {
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   PUBLIC NAVIGATION
   ============================================ */
.public-nav {
    background: #ffffff;
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0;
    border-bottom: 2px solid var(--border-color);
}

.public-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.public-nav a {
    color: #1a1d29;
    text-decoration: none;
    padding: 0.5rem 0.75rem;
    margin: 0 0.25rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-weight: 500;
    font-size: 0.9rem;
}

.public-nav a:hover {
    background: #f3f4f6;
    color: #0066CC;
}

.public-nav a strong {
    color: #0066CC;
    font-size: 1rem;
    font-weight: 600;
}

.public-nav .btn {
    margin-left: var(--spacing-md);
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

/* Fix button text color in navigation */
.public-nav a.btn-primary {
    color: white;
}

.public-nav a.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--olympic-blue) 100%);
    color: white;
}

/* ============================================
   HERO SECTION - PÁGINAS PÚBLICAS
   ============================================ */
.hero-small {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    padding: 3.5rem 0;
    text-align: center;
    margin-top: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: relative;
}

.hero-small h1 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    color: white;
    font-weight: 700;
    letter-spacing: -0.5px;
    -webkit-background-clip: initial;
    -webkit-text-fill-color: white;
    background-clip: initial;
}

.hero-small p {
    color: white;
    opacity: 0.95;
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

/* ============================================
   LOGIN PAGE - PÁGINA DE AUTENTICAÇÃO
   ============================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--olympic-blue) 0%, var(--primary-dark) 50%, var(--olympic-black) 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: "🏅";
    position: absolute;
    font-size: 40rem;
    opacity: 0.03;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: rotate 60s linear infinite;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: var(--spacing-lg);
    z-index: 10;
}

.login-box {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    animation: slideUp 0.4s ease-out;
}

.login-header {
    background: linear-gradient(135deg, var(--olympic-blue) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-xxl) var(--spacing-xl);
    text-align: center;
    border-bottom: 4px solid var(--olympic-yellow);
}

.login-header h1 {
    font-size: 1.75rem;
    margin: 0 0 var(--spacing-sm) 0;
    color: white;
    background: none;
    -webkit-text-fill-color: currentColor;
}

.login-header h2 {
    font-size: 1.25rem;
    margin: 0;
    font-weight: 400;
    opacity: 0.95;
}

.login-box form {
    padding: var(--spacing-xl);
}

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

.login-box label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.95rem;
}

.login-box input[type="email"],
.login-box input[type="password"] {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.login-box input[type="email"]:focus,
.login-box input[type="password"]:focus {
    outline: none;
    border-color: var(--olympic-blue);
    box-shadow: 0 0 0 4px rgba(0, 133, 199, 0.1);
}

.login-box .btn-block {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: var(--spacing-md);
}

.login-box .alert {
    margin: var(--spacing-lg) var(--spacing-xl) 0;
    padding: var(--spacing-md);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: slideInRight 0.3s ease-out;
}

.login-box .alert-error {
    background: #fee;
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

.login-box .alert-icon {
    font-size: 1.25rem;
    font-weight: bold;
}

.login-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--light-color);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    margin: var(--spacing-sm) 0;
}

.login-footer a {
    color: var(--olympic-blue);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
}

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

.login-footer .text-muted {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: var(--spacing-md);
}

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

/* Tablets e dispositivos médios */
@media (max-width: 1024px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }

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

    .main-content {
        padding: var(--spacing-lg);
    }
}

/* Tablets em modo retrato */
@media (max-width: 768px) {
    :root {
        --font-size-base: 14px;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .row {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .col-6,
    .col-4 {
        flex: 0 0 100%;
    }

    .form-row {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    .header h1 {
        font-size: 1.1rem;
    }

    .stat-card-value {
        font-size: 1.8rem;
    }

    .stat-card-icon {
        font-size: 1.5rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    table {
        font-size: 0.85rem;
    }

    thead th {
        padding: var(--spacing-md);
        font-size: 0.75rem;
    }

    tbody td {
        padding: var(--spacing-md);
    }

    .public-nav .container {
        flex-direction: column;
        gap: 0.75rem;
    }

    .public-nav .container > div {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .public-nav a {
        padding: 0.5rem 0.9rem;
        margin: 0;
        font-size: 0.85rem;
        background: #f9fafb;
        border: 1px solid #e5e7eb;
        border-radius: 6px;
        font-weight: 500;
    }

    .public-nav a:hover {
        background: #f3f4f6;
        border-color: #0066CC;
    }

    .public-nav a strong {
        font-size: 1rem;
        display: inline-block;
        padding: 0.5rem 1rem;
        background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
        color: white;
        border-radius: 6px;
    }

    .hero-small {
        padding: 2.5rem 0;
    }

    .hero-small h1 {
        font-size: 1.7rem;
    }

    .hero-small p {
        font-size: 1rem;
    }
}

/* Smartphones */
@media (max-width: 480px) {
    :root {
        --font-size-base: 13px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    h1 {
        font-size: 1.3rem;
    }

    h2 {
        font-size: 1.15rem;
    }

    h3 {
        font-size: 1rem;
    }

    .stat-card {
        padding: var(--spacing-lg);
    }

    .stat-card-value {
        font-size: 1.5rem;
    }

    .stat-card-title {
        font-size: 0.7rem;
    }

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

    .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .modal-content {
        width: 95%;
    }

    .public-nav {
        padding: 1rem 0;
        border-bottom: 3px solid #e5e7eb;
    }

    .public-nav .container {
        flex-direction: column;
        gap: 0.75rem;
    }

    .public-nav .container > div {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .public-nav a {
        font-size: 0.8rem;
        padding: 0.6rem 1rem;
        background: #f3f4f6;
        border: 1px solid #d1d5db;
        border-radius: 8px;
        font-weight: 600;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        min-width: 100px;
        text-align: center;
    }

    .public-nav a:hover {
        background: #e5e7eb;
        border-color: #0066CC;
        transform: translateY(-1px);
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
    }

    .public-nav a strong {
        display: block;
        width: 100%;
        padding: 0.6rem 1.2rem;
        background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
        color: white;
        border-radius: 8px;
        font-size: 0.9rem;
    }

    .public-nav .btn {
        margin: 0;
        width: 100%;
        max-width: 200px;
    }

    .hero-small {
        padding: 2.5rem 0;
    }

    .hero-small h1 {
        font-size: 1.5rem;
    }

    .hero-small p {
        font-size: 0.95rem;
    }

    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}