* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 0 20px;
}

.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 15px 30px;
    margin: 20px auto;
    max-width: 1200px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.navbar-brand {
    font-size: 28px;
    font-weight: 700;
    color: #667eea;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-brand i {
    font-size: 24px;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: #555;
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.navbar-toggle:hover {
    background: #667eea;
    color: white;
}

.navbar-nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

.navbar-nav a,
.navbar-nav form {
    color: #555;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-nav a:hover,
.navbar-nav button:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.navbar-nav a i {
    font-size: 14px;
}

.navbar-nav button {
    background: none;
    border: none;
    color: #555;
    font: inherit;
    cursor: pointer;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

@media (max-width: 768px) {
    .navbar {
        padding: 15px 20px;
    }

    .navbar-brand {
        font-size: 24px;
    }

    .navbar-toggle {
        display: block;
    }

    .navbar-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        padding-top: 10px;
    }

    .navbar-nav.active {
        display: flex;
    }

    .navbar-nav a,
    .navbar-nav form {
        width: 100%;
        padding: 12px 16px;
        border-radius: 0;
    }

    .navbar-nav a:first-child,
    .navbar-nav form:first-child {
        border-radius: 8px 8px 0 0;
    }

    .navbar-nav > a:last-child {
        border-radius: 0 0 8px 8px;
    }

    .dropdown-content a:last-child {
        border-radius: 0 0 8px 8px;
    }

    .navbar-nav button {
        width: 100%;
        justify-content: flex-start;
    }
}

.container {
    max-width: 1200px;
    margin: 20px auto;
}

.page-header {
    background: white;
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.page-header h1 {
    color: #333;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-header .breadcrumb {
    color: #888;
    font-size: 14px;
}

.page-header .breadcrumb a {
    color: #667eea;
    text-decoration: none;
}

.page-header .breadcrumb a:hover {
    text-decoration: underline;
}

.section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.section h2 {
    color: #667eea;
    font-size: 24px;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 3px solid #667eea;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section h2 i {
    font-size: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

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

.btn-secondary {
    background: linear-gradient(135deg, #7f8c8d 0%, #95a5a6 100%);
    box-shadow: 0 4px 15px rgba(127, 140, 141, 0.4);
}

.btn-secondary:hover {
    box-shadow: 0 6px 20px rgba(127, 140, 141, 0.6);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.alert {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-success {
    background: linear-gradient(135deg, #00b894 0%, #00cec9 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 184, 148, 0.3);
}

.alert-error {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.footer {
    text-align: center;
    color: white;
    padding: 30px;
    margin-top: 30px;
}

.footer a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

.footer a:hover {
    text-decoration: underline;
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background: white;
    min-width: 200px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    padding: 10px 0;
    z-index: 1000;
    top: 100%;
    margin-top: 10px;
}

.dropdown-content a {
    display: block;
    padding: 12px 20px;
    color: #555;
    text-decoration: none;
    transition: all 0.2s ease;
}

.dropdown-content a:hover {
    background: #667eea;
    color: white;
    transform: none;
    box-shadow: none;
}

.dropdown-content a:first-child {
    border-radius: 10px 10px 0 0;
}

.dropdown-content a:last-child {
    border-radius: 0 0 10px 10px;
}

#logout-form {
    display: none;
}

.dropdown:hover .dropdown-content,
.dropdown:focus-within .dropdown-content {
    display: block;
}

.dropdown-btn {
    background: none;
    border: none;
    color: #667eea;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.dropdown-btn:hover {
    background: #667eea;
    color: white;
}

@media (max-width: 768px) {
    .dropdown {
        display: contents;
    }

    .dropdown-btn {
        display: none;
    }

    .dropdown-content,
    .dropdown:hover .dropdown-content,
    .dropdown:focus-within .dropdown-content {
        display: contents;
    }

    .dropdown-content a {
        width: 100%;
        padding: 12px 16px;
        border-radius: 0;
    }
}