/**
 * DJEP Client Login Screen Customizer - Styles
 * toolsfordjs.com
 */

/* ============================================
   CSS Variables / Theme
   ============================================ */
:root {
    /* Colors - Dark DJ Theme */
    --bg-primary: #000000;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --bg-card: #1a1a1a;
    --bg-card-hover: #252525;

    /* Accent Colors - tools-hub chrome: dark + cyan */
    --accent-primary: #00d4ff;
    --accent-primary-hover: #00b8e6;
    --accent-secondary: #7c3aed;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #bbbbbb;
    --text-muted: #666666;

    /* Border Colors */
    --border-color: #2a2a2a;
    --border-color-light: #333333;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

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

/* ============================================
   Layout
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: var(--spacing-2xl) 0;
}

.page-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.page-header h1 {
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    font-size: 1.1rem;
    max-width: 640px;
    margin: 0 auto;
}

/* ============================================
   Customizer Layout
   ============================================ */
.customizer-layout {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

@media (max-width: 1000px) {
    .customizer-layout {
        grid-template-columns: 1fr;
    }
}

.controls-panel,
.preview-panel {
    min-width: 0;
}

/* ============================================
   Controls Panel
   ============================================ */
.controls-panel {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.controls-tabs {
    display: flex;
    flex-wrap: wrap;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    flex: 1 1 auto;
    justify-content: center;
}

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

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

.control-section {
    display: none;
    padding: var(--spacing-lg);
}

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

.section-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.help-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
    margin-bottom: 0;
}

/* Background Presets */
.bg-preset-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.bg-preset {
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    cursor: pointer;
    background-size: cover;
    background-position: center;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
    position: relative;
}

.bg-preset:hover {
    transform: scale(1.03);
    border-color: var(--border-color-light);
}

.bg-preset.active {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.3);
}

.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--accent-primary);
    background-color: rgba(0, 212, 255, 0.06);
}

.upload-zone input[type="file"] {
    display: none;
}

.upload-zone-icon {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.upload-zone p {
    margin: 0;
    font-size: 0.85rem;
}

/* Color Pickers */
.color-input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

input[type="color"] {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: 2px;
    background-color: var(--bg-tertiary);
    flex-shrink: 0;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: var(--radius-sm);
}

.color-text-input {
    flex: 1;
    min-width: 0;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-transform: uppercase;
}

.color-text-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* Range Slider */
.range-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.range-value {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent-primary);
    font-weight: 600;
}

input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Logo Upload / Placement */
.logo-preview-wrap {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.logo-preview-box {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.logo-preview-box img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.placement-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.placement-btn {
    aspect-ratio: 1;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    color: var(--text-muted);
}

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

.placement-btn.active {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background-color: rgba(0, 212, 255, 0.1);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-primary-hover);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-card-hover);
    border-color: var(--border-color-light);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

.action-bar {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ============================================
   Output panel: hosted CSS URL + DJEP paste line
   ============================================ */
.output-bar {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.host-block {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.host-label {
    margin: 0;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.host-badge {
    display: inline-block;
    margin-left: var(--spacing-sm);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background-color: rgba(16, 185, 129, 0.15);
    color: var(--accent-success);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: none;
    vertical-align: middle;
}

.snippet-wrap {
    display: flex;
    gap: var(--spacing-sm);
    align-items: stretch;
}

.snippet {
    flex: 1;
    min-width: 0;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-primary);
    overflow-x: auto;
    white-space: nowrap;
    line-height: 1.6;
}

.snippet-wrap .btn {
    width: auto;
    flex-shrink: 0;
    white-space: nowrap;
    font-size: 0.8rem;
    padding: var(--spacing-sm) var(--spacing-md);
}

.host-note {
    padding: var(--spacing-md);
    background-color: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.5;
}

.host-note strong {
    color: var(--accent-warning);
}

/* ============================================
   Load a saved design (fix #1: hosted URL becomes save/load)
   ============================================ */
.load-row {
    display: flex;
    gap: var(--spacing-sm);
    align-items: stretch;
}

.load-url-input {
    flex: 1;
    min-width: 0;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--text-primary);
}

.load-url-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.load-btn {
    width: auto;
    flex-shrink: 0;
    white-space: nowrap;
    font-size: 0.8rem;
    padding: var(--spacing-sm) var(--spacing-md);
}

/* ============================================
   Draft restore bar (fix #3: localStorage autosave)
   ============================================ */
.draft-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.88rem;
    padding: var(--spacing-sm) var(--spacing-lg);
}

.draft-bar-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.draft-bar .btn-sm {
    cursor: pointer;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 6px 14px;
}

.draft-bar .btn-sm:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

#restoreDraftBtn {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* ============================================
   Preview Panel
   ============================================ */
.preview-panel {
    position: sticky;
    top: calc(var(--spacing-md) * 2 + 60px);
}

.preview-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.preview-toolbar h4 {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.history-controls { display: flex; gap: 6px; }
.history-controls button {
    cursor: pointer; border: 1px solid var(--border-color); background: transparent;
    color: var(--text-secondary); font-family: var(--font-sans); font-size: 0.8rem;
    font-weight: 500; padding: 6px 10px; border-radius: var(--radius-sm);
    transition: border-color .15s, color .15s;
}
.history-controls button:hover:not(:disabled) { color: var(--text-primary); border-color: var(--accent-primary); }
.history-controls button:focus { outline: 2px solid var(--accent-primary); outline-offset: 1px; }
.history-controls button:disabled { opacity: .35; cursor: not-allowed; }

.preview-frame-wrap {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.djep-login-preview {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.djep-login-preview-logo {
    position: absolute;
    max-width: 140px;
    max-height: 70px;
    object-fit: contain;
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
}

/* ============================================
   Toast Notification
   ============================================ */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--accent-success);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    opacity: 0;
    transition: all var(--transition-normal);
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ============================================
   Utility Classes
   ============================================ */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

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

.mt-3 {
    margin-top: var(--spacing-lg);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }

    .container {
        padding: 0 var(--spacing-md);
    }

    .main-content {
        padding: var(--spacing-lg) 0;
    }

    .preview-panel {
        position: static;
    }
}

/* touch: 44px-min form controls for thumb use */
@media (hover: none) and (pointer: coarse) {
  input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]), select, textarea { min-height: 44px; }
  .tab-btn, .bg-preset, .placement-btn { min-height: 44px; }
}
@media (hover: none) and (pointer: coarse) {
  input[type=range] { height: 44px; -webkit-appearance: none; appearance: none; background: transparent; }
  input[type=range]::-webkit-slider-runnable-track { height: 6px; border-radius: 4px; background: rgba(255,255,255,0.18); }
  input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 22px; height: 22px; margin-top: -8px; border-radius: 50%; background: #00d4ff; border: 2px solid #fff; }
  input[type=range]::-moz-range-track { height: 6px; border-radius: 4px; background: rgba(255,255,255,0.18); }
  input[type=range]::-moz-range-thumb { width: 22px; height: 22px; border: 2px solid #fff; border-radius: 50%; background: #00d4ff; }
}