@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-glow: rgba(37, 99, 235, 0.25);
    
    --accent: #6366f1;
    --accent-emerald: #10b981;
    --accent-amber: #f59e0b;
    --accent-rose: #f43f5e;
    
    --bg-main: #0b0f19;
    --bg-card: rgba(18, 24, 38, 0.85);
    --bg-card-hover: rgba(28, 36, 56, 0.95);
    --bg-input: rgba(15, 23, 42, 0.6);
    
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(99, 102, 241, 0.35);
    --border-focus: #3b82f6;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-sub: #64748b;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.18);
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* Background Glowing Mesh */
.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.mesh-circle-1 {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, rgba(37, 99, 235, 0) 70%);
    top: -150px;
    left: -150px;
    filter: blur(40px);
    animation: float1 18s ease-in-out infinite alternate;
}

.mesh-circle-2 {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, rgba(99, 102, 241, 0) 70%);
    bottom: -100px;
    right: -100px;
    filter: blur(50px);
    animation: float2 22s ease-in-out infinite alternate;
}

@keyframes float1 {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 80px); }
}

@keyframes float2 {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-80px, -60px); }
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: rgba(11, 15, 25, 0.7);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: var(--text-main);
}

.brand-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.brand-text h1 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(90deg, #ffffff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-text p {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Layout Containers */
.main-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
}

/* Login Card */
.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2.2rem;
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent-emerald));
}

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

.auth-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.85rem;
    background: rgba(37, 99, 235, 0.12);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: #60a5fa;
    margin-bottom: 0.85rem;
}

.auth-header h2 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.4rem;
}

.auth-header p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Form Controls */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-sub);
    font-size: 1.1rem;
    pointer-events: none;
}

.form-input {
    width: 100%;
    padding: 0.85rem 1rem 0.85rem 2.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-size: 0.925rem;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--border-focus);
    background: rgba(15, 23, 42, 0.9);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.form-input::placeholder {
    color: var(--text-sub);
}

.toggle-password {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-sub);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.2rem;
    transition: var(--transition);
}

.toggle-password:hover {
    color: var(--text-main);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.825rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    cursor: pointer;
}

.remember-me input {
    cursor: pointer;
    accent-color: var(--primary);
    width: 16px;
    height: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.5rem;
    font-size: 0.925rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
    color: #ffffff;
    box-shadow: 0 4px 18px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #3b82f6 0%, var(--primary) 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(37, 99, 235, 0.35);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
    background: rgba(244, 63, 94, 0.15);
    color: #fda4af;
    border: 1px solid rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
    background: #f43f5e;
    color: #fff;
}

.btn-sm {
    padding: 0.45rem 0.85rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

/* Alert Boxes */
.alert {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
}

.alert-error {
    background: rgba(244, 63, 94, 0.12);
    border: 1px solid rgba(244, 63, 94, 0.3);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
}

.alert-info {
    background: rgba(37, 99, 235, 0.12);
    border: 1px solid rgba(37, 99, 235, 0.3);
    color: #93c5fd;
}

/* App Launcher Dashboard */
.launcher-section {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 1.5rem 0;
}

.launcher-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.user-profile-badge {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-full);
}

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.user-details h3 {
    font-size: 0.875rem;
    font-weight: 700;
}

.user-role-tag {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    display: inline-block;
}

.role-admin { background: rgba(239, 68, 68, 0.2); color: #fca5a5; }
.role-kepsek { background: rgba(245, 158, 11, 0.2); color: #fcd34d; }
.role-guru, .role-teacher { background: rgba(59, 130, 246, 0.2); color: #93c5fd; }
.role-tendik { background: rgba(16, 185, 129, 0.2); color: #6ee7b7; }
.role-siswa { background: rgba(168, 85, 247, 0.2); color: #d8b4fe; }

/* Filter Tabs */
.category-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.tab-btn {
    padding: 0.5rem 1.1rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-muted);
    font-size: 0.825rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.tab-btn:hover, .tab-btn.active {
    background: rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.4);
    color: #93c5fd;
}

/* App Grid */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.25rem;
}

.app-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.app-card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 25px rgba(99, 102, 241, 0.15);
}

.app-icon-wrap {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1.1rem;
    transition: var(--transition);
}

.app-card:hover .app-icon-wrap {
    transform: scale(1.08);
    background: rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.3);
}

.app-info h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: #ffffff;
}

.app-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.45;
    margin-bottom: 1rem;
}

.app-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.775rem;
    color: var(--text-sub);
}

.launch-arrow {
    font-size: 1.1rem;
    color: var(--primary-light);
    transition: var(--transition);
}

.app-card:hover .launch-arrow {
    transform: translateX(4px);
    color: #60a5fa;
}

/* Admin Dashboard Elements */
.admin-container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}

.stat-title {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.4rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: #ffffff;
}

/* Data Tables */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
}

.table-header-bar {
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 1rem;
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.875rem;
}

.custom-table th {
    padding: 0.9rem 1.25rem;
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
}

.custom-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-main);
}

.custom-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-box {
    background: #111827;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 520px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transform: scale(0.95);
    transition: var(--transition);
}

.modal-overlay.active .modal-box {
    transform: scale(1);
}

/* Loading Spinner */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.7s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .navbar { padding: 1rem; }
    .auth-card { padding: 1.8rem 1.4rem; }
    .apps-grid { grid-template-columns: 1fr; }
    .custom-table th, .custom-table td { padding: 0.75rem 0.85rem; }
}