/* ===== Reset & Variables ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #18181B;
    --bg-secondary: #27272A;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.08);
    --border-active: rgba(249, 115, 22, 0.4);
    --text-primary: #FAFAFA;
    --text-secondary: #A1A1AA;
    --text-muted: #71717A;
    --accent: #F97316;
    --accent-light: #FB923C;
    --accent-glow: rgba(249, 115, 22, 0.2);
    --success: #10B981;
    --radius: 10px;
    --radius-sm: 6px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 1.25rem;
}

/* ===== App Container ===== */
.app-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ===== Header ===== */
.app-header {
    text-align: center;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.logo h1 {
    font-size: 1.3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ===== Main Layout ===== */
.main-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 1rem;
}

/* ===== Config Panel ===== */
.config-panel {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: calc(100vh - 6rem);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.config-panel::-webkit-scrollbar {
    width: 4px;
}

.config-panel::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.config-section {
    padding: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.section-title {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.5rem;
}

/* Template Buttons */
.template-btns {
    display: flex;
    gap: 0.25rem;
}

.template-btn {
    flex: 1;
    padding: 0.4rem;
    font-family: var(--font);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.template-btn:hover {
    color: var(--text-secondary);
    background: var(--bg-card-hover);
}

.template-btn.active {
    color: var(--bg-primary);
    background: var(--accent);
    border-color: var(--accent);
}

/* Position Grid */
.position-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem;
}

.pos-btn {
    padding: 0.4rem;
    font-family: var(--font);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.pos-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-secondary);
}

.pos-btn.active {
    color: var(--accent);
    border-color: var(--border-active);
    background: rgba(249, 115, 22, 0.08);
}

/* Color Fields */
.color-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem;
}

.color-field {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.color-field span {
    font-size: 0.7rem;
    color: var(--text-secondary);
    flex: 1;
}

.color-field input[type="color"] {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: transparent;
    padding: 1px;
}

/* Text Fields */
.text-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.text-field span {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.text-field textarea,
.text-field input {
    width: 100%;
    padding: 0.4rem 0.5rem;
    font-family: var(--font);
    font-size: 0.75rem;
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    resize: vertical;
    transition: border-color var(--transition);
}

.text-field textarea:focus,
.text-field input:focus {
    border-color: var(--border-active);
}

.text-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem;
}

/* Category Toggles */
.categories {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.category-item {
    padding: 0.35rem 0;
}

.cat-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.8rem;
}

.cat-toggle input {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
}

.cat-name {
    color: var(--text-secondary);
}

.cat-badge {
    font-size: 0.55rem;
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
}

.cat-badge.required {
    background: rgba(249, 115, 22, 0.15);
    color: var(--accent);
}

/* Option Toggles */
.option-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0;
    cursor: pointer;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.option-toggle input {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
}

/* ===== Preview Section ===== */
.preview-code-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.preview-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border);
}

.preview-header .section-title {
    margin-bottom: 0;
}

.preview-device-btns {
    display: flex;
    gap: 0.25rem;
}

.device-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 28px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition);
}

.device-btn:hover {
    color: var(--text-secondary);
    background: var(--bg-card-hover);
}

.device-btn.active {
    color: var(--accent);
    border-color: var(--border-active);
}

.preview-container {
    position: relative;
    min-height: 280px;
    background: #0F172A;
    transition: max-width var(--transition);
}

.preview-container.mobile {
    max-width: 375px;
    margin: 0 auto;
}

.mock-site {
    padding: 1.5rem;
}

.mock-nav {
    height: 8px;
    width: 30%;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.mock-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.mock-block {
    height: 10px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 3px;
}

.w40 {
    width: 40%;
}

.w60 {
    width: 60%;
}

.w70 {
    width: 70%;
}

.w80 {
    width: 80%;
}

/* Banner Preview - positioned inside preview container */
.banner-preview {
    position: absolute;
    left: 0;
    right: 0;
    z-index: 10;
    transition: all 0.3s ease;
}

.banner-preview.pos-bottom {
    bottom: 0;
}

.banner-preview.pos-top {
    top: 0;
}

.banner-preview.pos-bottom-left {
    bottom: 12px;
    left: 12px;
    right: auto;
    max-width: 340px;
}

.banner-preview.pos-bottom-right {
    bottom: 12px;
    right: 12px;
    left: auto;
    max-width: 340px;
}

/* ===== Code Section ===== */
.code-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border);
}

.code-header .section-title {
    margin-bottom: 0;
}

.code-tabs {
    display: flex;
    gap: 0.2rem;
}

.code-tab {
    padding: 0.3rem 0.6rem;
    font-family: var(--font);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.code-tab:hover {
    color: var(--text-secondary);
}

.code-tab.active {
    color: var(--accent);
    background: rgba(249, 115, 22, 0.08);
}

.code-output-wrap {
    position: relative;
}

.code-output {
    padding: 0.75rem;
    max-height: 300px;
    overflow: auto;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    line-height: 1.6;
    color: var(--text-secondary);
    scrollbar-width: thin;
}

.code-output code {
    font-family: inherit;
}

.copy-code-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.6rem;
    font-family: var(--font);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.copy-code-btn:hover {
    color: var(--text-primary);
    background: var(--bg-card-hover);
}

.copy-code-btn.success {
    color: var(--success);
    border-color: var(--success);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .main-layout {
        grid-template-columns: 1fr;
    }

    .config-panel {
        max-height: none;
    }
}

@media (max-width: 480px) {
    body {
        padding: 0.75rem;
    }

    .preview-container {
        min-height: 220px;
    }
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.config-section {
    animation: fadeIn 0.3s ease-out;
}