:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #1e293b;
    --background: #0f172a;
    --surface: #1e293b;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
    --radius: 12px;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

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

/* Navbar */
.navbar {
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

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

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

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-link {
    color: var(--text-muted);
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--text);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

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

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

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

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

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
    background-color: var(--primary);
    color: white;
}

/* Hero */
.hero {
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Features */
.features {
    padding: 80px 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--surface);
    padding: 30px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--primary);
}

.feature-card p {
    color: var(--text-muted);
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    margin-top: 50px;
}

/* Forms */
.auth-container {
    max-width: 400px;
    margin: 80px auto;
    padding: 40px;
    background-color: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 12px;
    background-color: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

.form-title {
    text-align: center;
    margin-bottom: 30px;
}

/* Builder Layout */
.builder-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    /* Full height to cover main-content */
    margin: -40px;
    /* Counteract main-content padding */
    background: var(--background);
    overflow: hidden;
}

@media (min-width: 992px) {
    .builder-container {
        flex-direction: row;
    }
}

@media (max-width: 991px) {
    .builder-container {
        margin: -70px -20px -20px -20px; /* Adjust for mobile padding */
    }
}

/* Editor Panel */
.builder-editor {
    width: 100%;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 10;
    height: 50%;
    /* Mobile split */
}

@media (min-width: 992px) {
    .builder-editor {
        width: 400px;
        height: 100%;
        flex-shrink: 0;
    }
}

.editor-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.editor-tabs {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    border-bottom: 1px solid var(--border);
}

.tab-btn {
    padding: 10px 16px;
    border: none;
    background: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    font-weight: 600;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.95rem;
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.editor-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: none;
}

.editor-content.active {
    display: block;
}

/* Preview Panel */
.builder-preview {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #000000;
    /* Darker background for contrast */
    padding: 20px;
    height: 50%;
    /* Mobile split */
    position: relative;
}

@media (min-width: 992px) {
    .builder-preview {
        height: 100%;
    }
}

.mobile-mockup {
    width: 100%;
    max-width: 375px;
    height: 100%;
    max-height: 750px;
    background: #1a1a1a;
    border: 12px solid #333;
    border-radius: 40px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.mockup-screen {
    width: 100%;
    height: 100%;
    background: white;
    overflow: hidden;
    border-radius: 28px;
    /* Match outer radius minus border */
}

#preview-frame {
    width: 100%;
    height: 100%;
    border: none;
    background: white;
}

/* Blocks */
.blocks-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.block-item {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}

.block-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-color: var(--primary);
}

.block-header {
    padding: 12px 15px;
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border);
}

.drag-handle {
    cursor: grab;
    color: var(--text-muted);
    font-size: 1.2rem;
}

.block-title {
    flex: 1;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text);
}

.block-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.block-body {
    padding: 15px;
    display: none;
    /* Collapsed by default */
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

.block-item.expanded .block-body {
    display: block;
    /* Expanded state */
}

.block-item.expanded .block-header {
    margin-bottom: 10px;
}

.block-item:not(.expanded) .block-header {
    margin-bottom: 0;
}

/* Block Settings UI */
.setting-group {
    margin-bottom: 15px;
}

.setting-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 5px;
    letter-spacing: 0.5px;
}

.setting-value {
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--primary);
    min-width: 40px;
    text-align: right;
}

.form-range {
    height: 6px;
}

.form-range::-webkit-slider-thumb {
    background: var(--primary);
}

.text-xs {
    font-size: 0.75rem;
}

.avatar-preview-img {
    border: 2px solid var(--border);
}

.add-block-dropdown {
    margin-bottom: 20px;
    position: relative;
}

.add-menu {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 8px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    position: absolute;
    width: 100%;
    z-index: 20;
    overflow: hidden;
}

.add-item {
    padding: 12px 15px;
    cursor: pointer;
    color: var(--text);
    transition: background 0.2s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.add-item:hover {
    background: var(--primary);
    color: white;
}

/* Form Elements in Builder */
.block-item .form-control {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

.block-item .form-control:focus {
    border-color: var(--primary);
}

/* Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border);
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

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

input:checked+.slider:before {
    transform: translateX(16px);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s;
}

.btn-icon:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.avatar-preview {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatar-preview small {
    color: var(--text-muted);
}

/* Responsive utilities */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .btn-large {
        padding: 12px 24px;
        font-size: 1rem;
    }
    
    .auth-container {
        margin: 40px auto;
        padding: 30px 20px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
}