/* Import DM Sans Font */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&display=swap');

:root {
    --primary-color: #0F6B4A;
    --primary-dark: #0A4D35;
    --primary-light: #159A6E;
    --secondary-color: #2D7A5F;
    --accent-color: #4CAF50;
    --danger-color: #D32F2F;
    --warning-color: #F57C00;
    --success-color: #388E3C;
    
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F7FA;
    --bg-dark: #1A1A1A;
    --bg-card: #FFFFFF;
    
    --text-primary: #212121;
    --text-secondary: #616161;
    --text-light: #9E9E9E;
    --text-white: #FFFFFF;
    
    --border-color: #E0E0E0;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 0.5em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p { margin-bottom: 1em; }

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

.container-sm {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.navbar-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}

.navbar-menu a:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

.navbar-menu a.active {
    color: var(--primary-color);
    background: rgba(15, 107, 74, 0.1);
}

/* Mobile Navigation */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 4px;
}

.navbar-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.navbar-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.navbar-toggle.active span:nth-child(2) {
    opacity: 0;
}

.navbar-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.navbar-menu a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-menu a svg {
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .navbar-toggle {
        display: flex;
    }
    
    .navbar-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        background: var(--bg-card);
        flex-direction: column;
        padding: 2rem;
        gap: 0;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        align-items: flex-start;
        overflow-y: auto;
        z-index: 999;
    }
    
    .navbar-menu.active {
        left: 0;
    }
    
    .navbar-menu li {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .navbar-menu a {
        display: flex;
        width: 100%;
        padding: 1rem;
    }
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(15, 107, 74, 0.3);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    box-shadow: 0 6px 20px rgba(15, 107, 74, 0.4);
    transform: translateY(-2px);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-card);
    border-color: var(--primary-color);
}

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

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary-color);
    color: var(--text-white);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1.25rem;
    font-size: 1rem;
    font-family: 'DM Sans', sans-serif;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(15, 107, 74, 0.1);
}

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

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23616161' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 20px;
    padding-right: 3rem;
}

.form-error {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Grid System */
.grid {
    display: grid;
    gap: 2rem;
}

.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: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.py-1 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2 { padding-top: 1rem; padding-bottom: 1rem; }
.py-3 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-4 { padding-top: 2rem; padding-bottom: 2rem; }
.py-5 { padding-top: 3rem; padding-bottom: 3rem; }

.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 999px;
    white-space: nowrap;
}

.badge-primary {
    background: rgba(15, 107, 74, 0.1);
    color: var(--primary-color);
}

.badge-success {
    background: rgba(56, 142, 60, 0.1);
    color: var(--success-color);
}

.badge-danger {
    background: rgba(211, 47, 47, 0.1);
    color: var(--danger-color);
}

.badge-warning {
    background: rgba(245, 124, 0, 0.1);
    color: var(--warning-color);
}

/* Alert */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-success {
    background: rgba(56, 142, 60, 0.1);
    border-left: 4px solid var(--success-color);
    color: var(--success-color);
}

.alert-danger {
    background: rgba(211, 47, 47, 0.1);
    border-left: 4px solid var(--danger-color);
    color: var(--danger-color);
}

.alert-warning {
    background: rgba(245, 124, 0, 0.1);
    border-left: 4px solid var(--warning-color);
    color: var(--warning-color);
}

.alert-info {
    background: rgba(15, 107, 74, 0.1);
    border-left: 4px solid var(--primary-color);
    color: var(--primary-color);
}

/* Loading Spinner */
.spinner {
    border: 3px solid rgba(15, 107, 74, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 0.8s linear infinite;
}

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

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease-out;
}

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

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Stats Card */
.stat-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

/* Table */
.table-container {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.table thead {
    background: var(--bg-secondary);
}

.table th {
    padding: 1rem 1.5rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background: var(--bg-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .card {
        padding: 1.5rem;
    }
    
    .table-container {
        overflow-x: auto;
    }
}

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

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-in-up {
    animation: slideInUp 0.5s ease-out;
}