/**
 * Easyhost API - Main Stylesheet
 * Modern and responsive design
 */

/* ===== RESET & BASICS ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --border-color: #e5e7eb;
    --text-color: #374151;
    --text-muted: #6b7280;
    --success-color: #10b981;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
}

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

.container-fluid {
    width: 100%;
    padding: 0 20px;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    background: white;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    position: relative;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    flex: 1;
    justify-content: center;
    margin: 0 1rem;
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 0.875rem;
    border-radius: 0.375rem;
    transition: background-color 0.2s;
    white-space: nowrap;
    font-size: 0.9375rem;
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
    white-space: nowrap;
}

.nav-user .user-name {
    font-weight: 500;
    color: var(--text-color);
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* User Dropdown */
.user-dropdown {
    position: relative;
}

.user-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    padding: 0.375rem 0.875rem 0.375rem 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-color);
    font-size: 0.9375rem;
}

.user-dropdown-toggle:hover {
    background-color: var(--light-color);
    border-color: var(--primary-light);
}

.user-dropdown-toggle.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.user-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    font-weight: 600;
    font-size: 0.8125rem;
    flex-shrink: 0;
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    z-index: 1100;
}

.user-dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.625rem 1rem;
    color: var(--text-color);
    font-size: 0.9375rem;
    transition: background-color 0.15s;
    text-decoration: none;
}

.user-dropdown-item:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.user-dropdown-item.text-danger {
    color: var(--danger-color);
}

.user-dropdown-item.text-danger:hover {
    background-color: #fef2f2;
    color: var(--danger-color);
}

.user-dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 0.25rem 0;
}

/* Hamburger Menu Button */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
    line-height: 1.5;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

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

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--dark-color);
}

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

.btn-success:hover:not(:disabled) {
    background-color: #059669;
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

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

.btn-warning:hover:not(:disabled) {
    background-color: #d97706;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* ===== CARDS ===== */
.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 1.125rem;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--light-color);
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.form-label.required::after {
    content: " *";
    color: var(--danger-color);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-color);
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control.is-invalid {
    border-color: var(--danger-color);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.invalid-feedback {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--danger-color);
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* ===== TABLES ===== */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

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

.table thead {
    background-color: var(--light-color);
    border-bottom: 2px solid var(--border-color);
}

.table th,
.table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--dark-color);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr:hover {
    background-color: var(--light-color);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    border-radius: 0.25rem;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-info {
    background-color: #cffafe;
    color: #155e75;
}

.badge-secondary {
    background-color: #e5e7eb;
    color: #374151;
}

.badge-primary {
    background-color: #dbeafe;
    color: #1e40af;
}

/* ===== ALERTS ===== */
.alert {
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    border-radius: 0.375rem;
    border-left: 4px solid;
}

.alert-success {
    background-color: #d1fae5;
    border-color: #10b981;
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    border-color: #ef4444;
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    border-color: #f59e0b;
    color: #92400e;
}

.alert-info {
    background-color: #dbeafe;
    border-color: #3b82f6;
    color: #1e40af;
}

/* ===== DASHBOARD STATS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
}

.stat-card.success {
    border-left-color: var(--success-color);
}

.stat-card.danger {
    border-left-color: var(--danger-color);
}

.stat-card.warning {
    border-left-color: var(--warning-color);
}

.stat-card.info {
    border-left-color: var(--info-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
}

/* ===== LOGIN PAGE ===== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.login-card {
    background: white;
    padding: 2.5rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-muted);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-muted);
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-dialog {
    background: white;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ===== TIMER ===== */
.timer-container {
    text-align: center;
    padding: 2rem;
    background: var(--light-color);
    border-radius: 0.5rem;
    margin: 1.5rem 0;
}

.timer {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

.timer.warning {
    color: var(--warning-color);
}

.timer.danger {
    color: var(--danger-color);
}

/* ===== PAGINATION ===== */
.pagination {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 2rem;
}

.pagination li a,
.pagination li span {
    display: block;
    padding: 0.5rem 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    color: var(--text-color);
    transition: all 0.2s;
}

.pagination li a:hover {
    background-color: var(--light-color);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pagination li.active span {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

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

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

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

.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }

.fw-bold { font-weight: 700; }
.fw-semibold { font-weight: 600; }
.fw-normal { font-weight: 400; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .nav-menu {
        gap: 0.5rem;
    }
    
    .nav-menu a {
        padding: 0.5rem 0.625rem;
        font-size: 0.875rem;
    }
    
    .nav-user .user-name {
        display: none;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
    }
    
    .nav-toggle {
        display: flex;
        order: 2;
    }
    
    .logo {
        order: 1;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background: white;
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        margin: 0;
        padding: 4rem 0 2rem;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        overflow-y: auto;
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu a {
        display: block;
        width: 100%;
        padding: 1rem 1.5rem;
        border-radius: 0;
        border-bottom: 1px solid var(--border-color);
        font-size: 1rem;
    }
    
    .nav-menu a:hover,
    .nav-menu a.active {
        background-color: var(--primary-color);
        color: white;
    }
    
    .nav-user {
        order: 3;
        width: 100%;
        justify-content: flex-end;
        margin-top: 1rem;
        padding: 0.5rem 0;
    }
    
    .nav-user .user-name {
        display: none;
    }
    
    /* Mobile Menu Overlay */
    .nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 998;
    }
    
    .nav-overlay.active {
        display: block;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .modal-dialog {
        width: 95%;
    }
    
    .container {
        padding: 0 15px;
    }
}

/* ===== LOADING SPINNER ===== */
.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    width: 3rem;
    height: 3rem;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}