:root {
    --primary: #7c8cff;
    --primary-dark: #5c6bff;
    --primary-light: #a5b4ff;
    --primary-bg: rgba(124, 140, 255, 0.18);
    --secondary: #3dd9eb;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;

    --bg: #f7f8ff;
    --bg-secondary: rgba(255, 255, 255, 0.7);
    --bg-tertiary: rgba(255, 255, 255, 0.5);
    --surface: rgba(255, 255, 255, 0.72);
    --surface-hover: rgba(255, 255, 255, 0.9);
    --border: rgba(255, 255, 255, 0.5);
    --border-light: rgba(255, 255, 255, 0.3);

    --text: #0b1220;
    --text-secondary: #334155;
    --text-tertiary: #64748b;
    --text-inverse: #ffffff;

    --shadow-sm: 0 4px 14px rgba(15, 23, 42, 0.08);
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
    --shadow-md: 0 18px 45px rgba(15, 23, 42, 0.14);
    --shadow-lg: 0 30px 70px rgba(15, 23, 42, 0.18);
    --shadow-xl: 0 40px 90px rgba(15, 23, 42, 0.2);

    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --font: 'Manrope', 'Segoe UI', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, Consolas, monospace;

    --sidebar-width: 260px;
    --header-height: 64px;

    --transition: 0.2s ease;
    --transition-slow: 0.3s ease;
}

[data-theme="dark"] {
    --bg: #0b1020;
    --bg-secondary: rgba(16, 23, 42, 0.7);
    --bg-tertiary: rgba(20, 28, 52, 0.6);
    --surface: rgba(15, 23, 42, 0.72);
    --surface-hover: rgba(30, 41, 59, 0.8);
    --border: rgba(148, 163, 184, 0.18);
    --border-light: rgba(148, 163, 184, 0.1);

    --text: #f8fafc;
    --text-secondary: #cbd5f5;
    --text-tertiary: #94a3b8;
    --text-inverse: #0b1020;

    --shadow-sm: 0 6px 16px rgba(2, 6, 23, 0.35);
    --shadow: 0 16px 40px rgba(2, 6, 23, 0.45);
    --shadow-md: 0 24px 60px rgba(2, 6, 23, 0.5);
    --shadow-lg: 0 40px 90px rgba(2, 6, 23, 0.6);
    --shadow-xl: 0 50px 110px rgba(2, 6, 23, 0.65);

    --primary-bg: rgba(124, 140, 255, 0.22);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.bg-liquid {
    position: relative;
    min-height: 100vh;
    background:
        radial-gradient(circle at 10% 20%, rgba(124, 140, 255, 0.22) 0%, transparent 45%),
        radial-gradient(circle at 90% 10%, rgba(61, 217, 235, 0.18) 0%, transparent 40%),
        radial-gradient(circle at 70% 80%, rgba(176, 132, 255, 0.18) 0%, transparent 50%),
        var(--bg);
}

.liquid-orbs {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(10px);
    opacity: 0.7;
    mix-blend-mode: screen;
}

.orb-1 {
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(124, 140, 255, 0.5), transparent 70%);
    top: -60px;
    left: -40px;
}

.orb-2 {
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(61, 217, 235, 0.45), transparent 70%);
    top: 15%;
    right: -120px;
}

.orb-3 {
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(176, 132, 255, 0.45), transparent 70%);
    bottom: -80px;
    left: 20%;
}

.landing-header,
.landing-footer,
.dashboard-layout,
main,
.main-content {
    position: relative;
    z-index: 1;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text);
}

p {
    color: var(--text-secondary);
}

img {
    max-width: 100%;
    height: auto;
}

button {
    cursor: pointer;
    font-family: var(--font);
}

input, textarea, select {
    font-family: var(--font);
    font-size: 0.9375rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.9375rem;
    border: 1px solid transparent;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}

.btn:hover {
    transform: translateY(-1px);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-color: transparent;
    box-shadow: 0 12px 24px rgba(124, 140, 255, 0.3);
}

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

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border-color: var(--border);
    backdrop-filter: blur(12px);
}

.btn-secondary:hover {
    background: var(--border);
    color: var(--text);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
    border-color: var(--border);
    backdrop-filter: blur(10px);
}

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text);
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.card-body {
    padding: 24px;
}

.card-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.65);
    color: var(--text);
    backdrop-filter: blur(14px);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23475569' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 12px;
    padding-right: 40px;
}

.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-info {
    background: rgba(6, 182, 212, 0.1);
    color: #0891b2;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-success {
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

.badge-info {
    background: rgba(6, 182, 212, 0.1);
    color: #0891b2;
}

.badge-primary {
    background: var(--primary-bg);
    color: var(--primary);
}

.table-wrapper {
    overflow-x: auto;
}

.table-responsive {
    overflow-x: auto;
}

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

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

table th, table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
}

table th {
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--surface);
    backdrop-filter: blur(14px);
}

table tr:hover td {
    background: var(--surface-hover);
}

.table-actions {
    display: flex;
    gap: 8px;
}

.grid {
    display: grid;
    gap: 24px;
}

.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: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

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

.text-truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.p-4 { padding: 32px; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.open {
    display: flex;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    width: 100%;
    max-width: 520px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(20px);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.modal-header h2 {
    font-size: 1.25rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text);
}

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state svg {
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state h3 {
    margin-bottom: 8px;
    color: var(--text);
}

.empty-state p {
    color: var(--text-tertiary);
    margin-bottom: 16px;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease forwards;
}

.animate-slide-up {
    animation: slideUp 0.5s ease forwards;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Loading spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Toggle switch */
.toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--border);
    border-radius: 24px;
    transition: var(--transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 2px;
    bottom: 2px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

.toggle input:checked + .toggle-slider {
    background: var(--primary);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

@media (max-width: 768px) {
    :root {
        --sidebar-width: 0px;
    }

    .container {
        padding: 0 16px;
    }
}