/**
 * Premium Desktop Design System - Improved Readability
 * Modern SaaS style with better contrast for desktop screens
 */

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

:root {
    /* Lighter Dark Palette - Better for Desktop */
    --color-bg-primary: #1a1d29;
    --color-bg-secondary: #252936;
    --color-bg-tertiary: #2d3142;
    --color-bg-elevated: #343849;

    /* Text Colors - Higher Contrast */
    --color-text-primary: #ffffff;
    --color-text-secondary: #b8bcc8;
    --color-text-tertiary: #8b90a0;

    /* Accent Colors */
    --color-accent-primary: #4d9eff;
    --color-accent-secondary: #7c7ce6;
    --color-accent-success: #4ade80;
    --color-accent-warning: #fbbf24;
    --color-accent-error: #f87171;

    /* Borders & Dividers */
    --color-border-primary: rgba(255, 255, 255, 0.12);
    --color-border-secondary: rgba(255, 255, 255, 0.06);

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;

    /* Typography */
    --font-size-xs: 11px;
    --font-size-sm: 13px;
    --font-size-base: 15px;
    --font-size-lg: 17px;
    --font-size-xl: 20px;
    --font-size-2xl: 28px;
    --font-size-3xl: 36px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    display: flex;
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* WebGL Canvas Background */
#webgl-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.4;
}

/* ==================== SIDEBAR ==================== */
.sidebar {
    width: 280px;
    background: rgba(37, 41, 54, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--color-border-primary);
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 10;
    box-shadow: 2px 0 16px rgba(0, 0, 0, 0.3);
}

.sidebar-header {
    padding: var(--space-xl) var(--space-lg);
    border-bottom: 1px solid var(--color-border-primary);
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo i {
    font-size: 24px;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.user-info {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-base);
    font-weight: 700;
    color: white;
    letter-spacing: 1px;
    flex-shrink: 0;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 600;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xs);
    letter-spacing: -0.2px;
}

.user-balance {
    color: var(--color-accent-primary);
    font-size: var(--font-size-sm);
    font-weight: 700;
    letter-spacing: -0.2px;
    margin-bottom: var(--space-xs);
}

#adminBadgeContainer {
    margin-top: var(--space-xs);
}

.admin-badge {
    display: inline-block;
    padding: 4px 8px;
    background: rgba(248, 113, 113, 0.15);
    color: var(--color-accent-error);
    border: 1px solid var(--color-accent-error);
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ==================== MENU ==================== */
.menu {
    flex: 1;
    padding: var(--space-lg) 0;
    overflow-y: auto;
}

.menu::-webkit-scrollbar {
    width: 4px;
}

.menu::-webkit-scrollbar-track {
    background: transparent;
}

.menu::-webkit-scrollbar-thumb {
    background: var(--color-border-primary);
    border-radius: 2px;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    width: 100%;
    padding: 12px var(--space-lg);
    background: none;
    border: none;
    border-left: 3px solid transparent;
    text-align: left;
    cursor: pointer;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
    transition: all 0.2s;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.menu-item svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}

.menu-item:hover {
    background: rgba(77, 158, 255, 0.08);
    color: var(--color-text-primary);
}

.menu-item.active {
    background: rgba(77, 158, 255, 0.12);
    color: var(--color-accent-primary);
    border-left-color: var(--color-accent-primary);
}

/* ==================== SIDEBAR FOOTER ==================== */
.sidebar-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border-primary);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

#adminPanelBtnContainer .admin-panel-btn {
    width: 100%;
    padding: 12px;
    background: rgba(248, 113, 113, 0.12);
    color: var(--color-accent-error);
    border: 1px solid rgba(248, 113, 113, 0.3);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: 700;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

#adminPanelBtnContainer .admin-panel-btn svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    flex-shrink: 0;
}

#adminPanelBtnContainer .admin-panel-btn:hover {
    background: rgba(248, 113, 113, 0.18);
    border-color: var(--color-accent-error);
}

.logout-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    color: var(--color-text-tertiary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: 700;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-text-secondary);
    color: var(--color-text-primary);
}

.logout-btn:active {
    transform: scale(0.98);
}

/* ==================== MAIN CONTENT ==================== */
.main-content {
    flex: 1;
    padding: var(--space-xl);
    overflow-y: auto;
    position: relative;
    z-index: 10;
}

.main-content::-webkit-scrollbar {
    width: 10px;
}

.main-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.03);
}

.main-content::-webkit-scrollbar-thumb {
    background: var(--color-border-primary);
    border-radius: 5px;
}

.main-content::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.15);
}

.page-title {
    font-size: var(--font-size-3xl);
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    font-weight: 800;
    letter-spacing: -1px;
}

.page-subtitle {
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-xl);
    font-weight: 500;
}

/* ==================== STATS GRID ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.stat-card {
    background: rgba(45, 49, 66, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-lg);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    opacity: 0;
    transition: opacity 0.3s;
}

.stat-card:hover {
    border-color: var(--color-accent-primary);
    box-shadow: 0 4px 20px rgba(77, 158, 255, 0.15);
    transform: translateY(-2px);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-label {
    color: var(--color-text-tertiary);
    font-size: var(--font-size-xs);
    margin-bottom: var(--space-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -1px;
}

/* ==================== PROJECTS SECTION ==================== */
.projects-section {
    background: rgba(45, 49, 66, 0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-xl);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border-secondary);
}

.section-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
}

.btn-primary {
    background: var(--color-accent-primary);
    color: white;
    padding: 12px var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 700;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    background: var(--color-accent-secondary);
    box-shadow: 0 4px 12px rgba(77, 158, 255, 0.3);
    transform: translateY(-1px);
}

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

/* ==================== PROJECTS LIST ==================== */
.projects-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.project-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--color-accent-primary), var(--color-accent-secondary));
    opacity: 0;
    transition: opacity 0.3s;
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.project-card:hover {
    background: rgba(52, 56, 73, 0.8);
    border-color: var(--color-accent-primary);
    box-shadow: 0 4px 16px rgba(77, 158, 255, 0.15);
    transform: translateX(4px);
}

.project-card:hover::before {
    opacity: 1;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-sm);
    gap: var(--space-md);
}

.project-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.3px;
    flex: 1;
}

.delete-project-btn {
    background: rgba(248, 113, 113, 0.1);
    color: var(--color-accent-error);
    border: 1px solid rgba(248, 113, 113, 0.3);
    border-radius: var(--radius-sm);
    padding: 6px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.delete-project-btn svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
}

.delete-project-btn:hover {
    background: var(--color-accent-error);
    color: white;
    border-color: var(--color-accent-error);
}

.project-status {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.status-draft {
    background: rgba(251, 191, 36, 0.12);
    color: var(--color-accent-warning);
    border-color: var(--color-accent-warning);
}

.status-generating {
    background: rgba(77, 158, 255, 0.12);
    color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

.status-structure-ready,
.status-completed {
    background: rgba(74, 222, 128, 0.12);
    color: var(--color-accent-success);
    border-color: var(--color-accent-success);
}

.project-meta {
    display: flex;
    gap: var(--space-lg);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-meta svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    vertical-align: text-bottom;
    margin-right: var(--space-xs);
}

/* ==================== MODAL ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s;
}

.modal-content-wide {
    max-width: 900px;
}

.modal-form-layout {
    display: grid;
    grid-template-columns: 1fr 200px;
    gap: var(--space-xl);
}

.modal-form-main {
    min-width: 0;
    max-height: calc(90vh - 120px);
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: var(--space-sm);
}

.modal-form-main::-webkit-scrollbar {
    width: 6px;
}

.modal-form-main::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.modal-form-main::-webkit-scrollbar-thumb {
    background: var(--color-border-primary);
    border-radius: 3px;
}

.modal-form-sidebar {
    position: sticky;
    top: 0;
    align-self: start;
}

.form-actions-vertical {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-actions-vertical .btn-primary,
.form-actions-vertical .btn-secondary {
    width: 100%;
    text-align: center;
    justify-content: center;
}

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

.modal-content::-webkit-scrollbar {
    width: 6px;
}

.modal-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--color-border-primary);
    border-radius: 3px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border-primary);
}

.modal-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
}

.close-modal {
    font-size: 28px;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--color-text-tertiary);
    transition: all 0.2s;
    line-height: 1;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.close-modal:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* ==================== FORMS ==================== */
.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
    font-weight: 700;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px var(--space-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    transition: all 0.2s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(77, 158, 255, 0.12);
    background: rgba(52, 56, 73, 0.8);
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.form-section-label {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: var(--space-md);
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border-secondary);
}

/* ==================== TOGGLE SWITCH ==================== */
.mode-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
}

.mode-label {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mode-label.active {
    color: var(--color-accent-primary);
}

.toggle-switch {
    position: relative;
    width: 56px;
    height: 28px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-primary);
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s;
}

.toggle-switch.active {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

.toggle-slider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 22px;
    height: 22px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.toggle-switch.active .toggle-slider {
    transform: translateX(28px);
}

.auto-mode-fields {
    display: none;
}

.auto-mode-fields.active {
    display: block;
}

.manual-mode-fields {
    display: block;
}

.manual-mode-fields.hidden {
    display: none;
}

/* ==================== AMOUNT BUTTONS ==================== */
.amount-btn {
    padding: 14px var(--space-lg);
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 700;
    transition: all 0.2s;
    text-align: center;
}

.amount-btn:hover {
    background: rgba(52, 56, 73, 0.8);
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
}

.amount-btn.selected {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: white;
}

/* ==================== PAYMENT ITEMS ==================== */
.payment-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    transition: all 0.2s;
}

.payment-item:hover {
    background: rgba(52, 56, 73, 0.8);
    border-color: var(--color-border-primary);
}

.payment-info {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
}

.payment-amount {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
}

.payment-date {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.payment-status {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid;
    border-radius: var(--radius-sm);
}

.status-new {
    background: rgba(139, 144, 160, 0.12);
    color: var(--color-text-tertiary);
    border-color: var(--color-text-tertiary);
}

.status-processing {
    background: rgba(251, 191, 36, 0.12);
    color: var(--color-accent-warning);
    border-color: var(--color-accent-warning);
}

.status-failed {
    background: rgba(248, 113, 113, 0.12);
    color: var(--color-accent-error);
    border-color: var(--color-accent-error);
}

.status-cancelled {
    background: rgba(139, 144, 160, 0.12);
    color: var(--color-text-tertiary);
    border-color: var(--color-text-tertiary);
}

/* ==================== FORM ACTIONS ==================== */
.form-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-secondary);
    padding: 12px var(--space-lg);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 700;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-secondary:hover {
    border-color: var(--color-text-secondary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-secondary:active {
    transform: scale(0.98);
}

/* ==================== CONTENT SECTIONS ==================== */
.content-section {
    display: none;
}

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

/* ==================== AUTO STRUCTURE PREVIEW ==================== */
#autoStructurePreview {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-top: var(--space-md);
}

#autoStructurePreview > div:first-child {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#autoStructurePreview > div:last-child {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

#autoStructurePreview strong {
    color: var(--color-text-primary);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }

    .sidebar {
        position: fixed;
        left: -280px;
        height: 100vh;
        z-index: 100;
        transition: left 0.3s;
    }

    .sidebar.mobile-open {
        left: 0;
    }

    .main-content {
        padding: var(--space-lg);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: var(--space-lg);
        max-width: 100%;
        max-height: 95vh;
    }
}