/* =============================
   Key Generator Page Styles
   ============================= */

:root {
    --glass-bg: rgba(20, 27, 39, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --glass-highlight: rgba(255, 255, 255, 0.05);

    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --accent-glow: 0 0 20px rgba(99, 102, 241, 0.4);
    --accent-glow-strong: rgba(99, 102, 241, 0.6);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;

    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
}

[data-theme="light"] {
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(0, 0, 0, 0.06);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    --glass-highlight: rgba(255, 255, 255, 0.4);

    --accent-gradient: linear-gradient(135deg, #a89850 0%, #c07870 100%);
    --accent-glow: 0 0 20px rgba(168, 152, 80, 0.32);
    --accent-glow-strong: rgba(168, 152, 80, 0.46);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
}

/* --- Base Layout --- */

body[data-page="keygen"] .container {
    padding-bottom: var(--space-10);
}

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

/* 히어로 레이아웃/외형은 공통 styles.css의 .hero 규칙을 사용 */

@media (max-width: 640px) {
    /* 모바일 레이아웃은 공통 .hero 규칙에 따름 */
}

/* --- Workspace Layout --- */

.keygen-workspace {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.workspace-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: var(--space-5);
    align-items: start;
}

@media (max-width: 1024px) {
    .workspace-grid {
        grid-template-columns: 1fr;
    }
}

/* --- Type Switcher --- */

.type-switcher-wrapper {
    position: relative;
    z-index: 10;
}

.type-tabs {
    display: flex;
    padding: 4px;
    gap: 4px;
}

.type-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: var(--font-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.type-tab:hover {
    color: var(--text-primary);
    background: var(--glass-highlight);
}

.type-tab.active {
    background: var(--color-surface-alt);
    color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}

.type-tab .material-symbols-rounded {
    font-size: 20px;
}

/* Mobile Select */
.mobile-type-select {
    display: none;
    padding: var(--space-2);
}

@media (max-width: 640px) {
    .type-tabs {
        display: none;
    }

    .mobile-type-select {
        display: block;
    }
}

.select-wrapper {
    position: relative;
}

.select-wrapper select {
    width: 100%;
    appearance: none;
    background: var(--color-surface-alt);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 12px var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-md);
    cursor: pointer;
}

.select-arrow {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-secondary);
}

/* --- Settings Panel --- */

.settings-column {
    padding: var(--space-5);
    min-height: 400px;
}

.settings-head {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--glass-border);
}

.settings-icon-box {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-soft);
    border-radius: var(--radius-md);
    color: var(--color-accent);
}

.settings-head h2 {
    margin: 0;
    font-size: var(--font-xl);
    color: var(--text-primary);
}

.settings-head p {
    margin: 4px 0 0;
    color: var(--text-secondary);
    font-size: var(--font-sm);
}

/* Form Fields */
.panel-section {
    margin-bottom: var(--space-6);
}

.panel-section h3 {
    font-size: var(--font-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin: 0 0 var(--space-3);
}

.panel-fields {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.panel-field label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 500;
    color: var(--text-primary);
    font-size: var(--font-sm);
}

/* Custom Range Slider */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    background: transparent;
}

input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    background: var(--color-surface-alt);
    border-radius: 999px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background: var(--color-accent);
    margin-top: -7px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: transform 0.1s;
}

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

/* Option Chips */
.option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-2);
}

.option-chip {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 10px 14px;
    background: var(--color-surface-alt);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

.option-chip:hover {
    background: var(--glass-highlight);
}

.option-chip:has(input:checked) {
    background: var(--color-accent-soft);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.option-chip input {
    accent-color: var(--color-accent);
}

/* Preview Box */
.panel-preview {
    font-family: 'JetBrains Mono', monospace;
    background: rgba(0, 0, 0, 0.3);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-sm);
    word-break: break-all;
    border: 1px dashed var(--glass-border);
}

/* --- Output Column --- */

.output-column {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.action-bar {
    padding: var(--space-3);
    display: flex;
    gap: var(--space-2);
}

.action-bar .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.icon-btn {
    border-radius: var(--radius-lg);
}

.icon-svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
    display: block;
}

.icon-btn.wide {
    gap: 6px;
}

.full-width {
    flex: 1;
}

.glow-effect {
    background: var(--accent-gradient);
    box-shadow: var(--accent-glow);
    border: none;
    color: white;
    font-weight: 600;
    transition: all 0.3s ease;
}

.glow-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 30px var(--accent-glow-strong);
}

.secondary-actions {
    display: flex;
    gap: var(--space-1);
}

.secondary-actions .btn {
    min-width: 44px;
    height: 44px;
    padding: 0 var(--space-3);
}

.secondary-actions .btn .material-symbols-rounded {
    font-size: 20px;
    line-height: 1;
}

/* Insight Card */
.insight-card {
    padding: var(--space-4);
}

.insight-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    color: var(--text-secondary);
}

.insight-header h3 {
    margin: 0;
    font-size: var(--font-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.strength-meter {
    margin-bottom: var(--space-2);
}

.meter-track {
    height: 8px;
    background: var(--color-surface-alt);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: var(--space-2);
}

.meter-fill {
    height: 100%;
    width: 0%;
    background: var(--accent-gradient);
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.meter-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-sm);
}

.strength-badge {
    font-weight: 700;
    text-transform: uppercase;
    font-size: var(--font-xs);
    padding: 2px 8px;
    border-radius: 4px;
}

.strength-badge.is-weak {
    color: var(--danger-color);
    background: rgba(239, 68, 68, 0.1);
}

.strength-badge.is-moderate {
    color: var(--warning-color);
    background: rgba(245, 158, 11, 0.1);
}

.strength-badge.is-strong {
    color: var(--success-color);
    background: rgba(16, 185, 129, 0.1);
}

.strength-badge.is-very-strong {
    color: var(--color-accent-alt);
    background: var(--color-accent-soft);
}

.pool-info {
    margin: 0;
    font-size: var(--font-xs);
    color: var(--text-tertiary);
    text-align: right;
}

/* Output Cards */
.output-area {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.output-card {
    padding: 0;
    overflow: hidden;
    transition: opacity 0.3s;
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    background: rgba(2, 6, 23, 0.35);
    display: flex;
    flex-direction: column;
}

.output-card.secondary.is-placeholder {
    opacity: 0.6;
    pointer-events: none;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    background: rgba(15, 15, 35, 0.35);
    border-bottom: 1px solid var(--glass-border);
    gap: var(--space-3);
}

.copy-btn {
    min-width: 60px;
    height: 44px;
    padding: 0 var(--space-3);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--text-secondary);
    transition: border-color 0.2s, color 0.2s;
    font-size: var(--font-xs);
    font-weight: 600;
}

.copy-btn .material-symbols-rounded {
    font-size: 18px;
}

.copy-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.header-text h3 {
    margin: 0;
    font-size: var(--font-sm);
    color: var(--text-secondary);
}

.header-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.header-text .badge {
    font-size: 10px;
    padding: 2px 6px;
    background: var(--glass-highlight);
    border-radius: 4px;
    color: var(--text-tertiary);
    margin-left: 0;
}

.editor-wrapper {
    position: relative;
    background: rgba(1, 6, 22, 0.55);
}

.code-editor {
    width: 100%;
    min-height: 140px;
    padding: var(--space-4);
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--font-sm);
    line-height: 1.6;
    resize: vertical;
}

.code-editor:focus {
    outline: none;
    background: rgba(0, 0, 0, 0.2);
}

.placeholder-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(20, 27, 39, 0.8);
    color: var(--text-tertiary);
    font-size: var(--font-sm);
    font-style: italic;
    display: none;
}

.output-card.secondary.is-placeholder .placeholder-overlay {
    display: flex;
}

.output-footer {
    padding: 10px var(--space-4);
    font-size: var(--font-xs);
    color: var(--text-tertiary);
    background: rgba(6, 10, 20, 0.45);
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-3);
}

/* --- Animations --- */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.settings-column>* {
    animation: slideIn 0.3s ease-out forwards;
}

/* --- Utilities --- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}