/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
        Cantarell, sans-serif;
    background: #f5f7fa;
    color: #2d3748;
    line-height: 1.6;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.main-header {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo a {
    font-size: 1.4rem;
    font-weight: bold;
    color: #2d3748;
    text-decoration: none;
}

.main-nav {
    display: flex;
    gap: 25px;
}

.nav-link {
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: #5a67d8;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-name {
    color: #4a5568;
    font-weight: 500;
}

/* Footer */
.main-footer {
    text-align: center;
    padding: 20px;
    color: #718096;
    font-size: 0.9rem;
    margin-top: 40px;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 10px;
    color: #2d3748;
}

.subtitle {
    text-align: center;
    color: #718096;
    margin-bottom: 30px;
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #4a5568;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="tel"],
.form-group input[type="date"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #cbd5e0;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #5a67d8;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: #5a67d8;
    color: white;
}

.btn-primary:hover {
    background: #4c51bf;
}

.btn-success {
    background: #48bb78;
    color: white;
}

.btn-success:hover {
    background: #38a169;
}

.btn-danger {
    background: #f56565;
    color: white;
}

.btn-danger:hover {
    background: #e53e3e;
}

.btn-secondary {
    background: #cbd5e0;
    color: #2d3748;
}

.btn-secondary:hover {
    background: #a0aec0;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
}

/* Alerts */
.alert {
    padding: 12px 15px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.alert-error {
    background: #fed7d7;
    color: #c53030;
    border: 1px solid #fc8181;
}

.alert-success {
    background: #c6f6d5;
    color: #22543d;
    border: 1px solid #9ae6b4;
}

.alert-info {
    background: #bee3f8;
    color: #2c5282;
    border: 1px solid #90cdf4;
}

/* Page Header */
.page-header {
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: 5px;
}

.page-header p {
    color: #718096;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-content h3 {
    font-size: 0.9rem;
    color: #718096;
    margin-bottom: 5px;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: #2d3748;
}

/* Dashboard Sections */
.dashboard-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.section-half {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.section-half h2 {
    font-size: 1.3rem;
    margin-bottom: 20px;
}

/* Utility Classes */
.text-muted {
    color: #a0aec0;
}

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

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}