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

:root {
    /* Premium Dark Mode Palette */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --accent-color: #3b82f6; /* Blue */
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%); /* Blue to Purple */
    --accent-hover: #2563eb;
    
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    
    --border-color: rgba(255,255,255,0.1);
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    --shadow-glow: 0 0 15px rgba(59, 130, 246, 0.5);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

header {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.brand {
    font-weight: 700;
    font-size: 1.25rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

main {
    flex: 1;
    padding: 3rem 0;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.2;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.2s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.btn-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-danger:hover {
    background-color: var(--danger);
    color: white;
}

/* Tables */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th, td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: rgba(255,255,255,0.02);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

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

tr:hover td {
    background-color: rgba(255,255,255,0.03);
}

/* Form Builder Specifics */
.builder-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .builder-layout {
        grid-template-columns: 1fr;
    }
}

.sidebar {
    position: sticky;
    top: 5rem;
    height: calc(100vh - 6rem);
    overflow-y: auto;
}

.field-type-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 1rem;
    margin-bottom: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.field-type-btn:hover {
    border-color: var(--accent-color);
    background: rgba(59, 130, 246, 0.1);
}

.builder-canvas {
    min-height: 500px;
    padding: 2rem;
}

.field-block {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    animation: slideIn 0.3s ease forwards;
}

.field-block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.field-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.remove-btn {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 0.875rem;
}
.remove-btn:hover { text-decoration: underline; }

/* Login Box */
.login-box {
    max-width: 400px;
    margin: 4rem auto;
    padding: 2.5rem;
}

/* Notifications */
.alert {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}
.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.2);
}
.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Badges */
.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-su { background: rgba(139, 92, 246, 0.2); color: #c4b5fd; }
.badge-user { background: rgba(59, 130, 246, 0.2); color: #93c5fd; }