/**
 * Admin Create Server Page
 * Grid layout, sections, loading overlay
 */

/* ==========================================
   PAGE TITLE — compact override
   ========================================== */

.page-title {
    font-size: 1.15rem;
    margin-bottom: 16px;
    padding-bottom: 8px;
}

.page-title .icon {
    width: 1.1em;
    height: 1.1em;
    vertical-align: -0.15em;
}

/* ==========================================
   PANEL CONTENT — allow form to overflow
   ========================================== */

.admin-main-content .panel-content {
    overflow: auto;
}

/* ==========================================
   FULL-WIDTH SECTION
   ========================================== */

.form-section--full {
    grid-column: 1 / -1;
}

.form-section-desc {
    margin: 0 0 var(--spacing-16) 0;
    font-size: var(--text-14);
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ==========================================
   PRESET SELECTOR
   ========================================== */

.preset-selector {
    display: flex;
    gap: var(--spacing-12);
    flex-wrap: wrap;
}

.preset-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-12) var(--spacing-16);
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 100px;
    color: var(--color-text);
}

.preset-btn:hover {
    border-color: var(--color-accent);
    background: var(--color-surface-hover);
}

.preset-btn--active {
    border-color: var(--color-accent);
    background: var(--color-accent-bg, rgba(212, 175, 55, 0.12));
    box-shadow: 0 0 0 1px var(--color-accent);
}

.preset-icon {
    font-size: 24px;
    line-height: 1;
}

.preset-label {
    font-weight: 600;
    font-size: var(--text-13);
    color: var(--color-text);
}

.preset-desc {
    font-size: var(--text-11);
    color: var(--color-text-muted);
}

/* ==========================================
   COLLAPSIBLE SECTIONS
   ========================================== */

.collapsible {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.collapsible-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-12) var(--spacing-16);
    background: var(--color-surface);
    cursor: pointer;
    user-select: none;
    transition: background 0.15s ease;
}

.collapsible-header:hover {
    background: var(--color-surface-hover);
}

.collapsible-header .form-section-title {
    margin: 0;
    padding: 0;
    border: none;
}

.collapsible-arrow {
    font-size: var(--text-14);
    color: var(--color-text-muted);
    transition: transform 0.2s ease;
}

.collapsible-arrow.is-collapsed {
    transform: rotate(-90deg);
}

.collapsible-body {
    padding: var(--spacing-16);
    overflow: visible;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.collapsible-body.is-collapsed {
    max-height: 0 !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    border-top: none;
    overflow: hidden;
}

/* ==========================================
   RANGE SLIDERS
   ========================================== */

.form-range {
    appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--color-primary-dark, #3a2a1a);
    border-radius: 3px;
    outline: none;
    margin: var(--spacing-8) 0;
}

.form-range::-webkit-slider-thumb {
    appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-accent, #d4af37);
    cursor: pointer;
    border: 2px solid var(--color-primary, #8B4513);
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
    transition: transform 0.15s ease;
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.form-range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-accent, #d4af37);
    cursor: pointer;
    border: 2px solid var(--color-primary, #8B4513);
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

/* ==========================================
   FIELD VALUE DISPLAY
   ========================================== */

.field-value {
    font-weight: 600;
    color: var(--color-accent, #d4af37);
    margin-left: var(--spacing-4);
    font-variant-numeric: tabular-nums;
}

/* ==========================================
   INLINE FORM FIELDS
   ========================================== */

.form-group--inline .form-field {
    flex: 1;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (width <= 768px) {
    .preset-selector {
        gap: var(--spacing-8);
    }

    .preset-btn {
        min-width: 80px;
        padding: var(--spacing-8) var(--spacing-12);
    }

    .form-group--inline {
        flex-direction: column;
        gap: var(--spacing-12);
    }
}

/* ==========================================
   FORM GRID
   ========================================== */

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-24);
}

@media (width <= 1023px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   FORM SECTIONS
   ========================================== */

.form-section {
    background: var(--color-surface);
    border: 1px solid var(--color-primary-dark);
    border-radius: var(--radius-12);
    padding: var(--spacing-20);
    transition: border-color var(--transition-fast);
}

.form-section:hover {
    border-color: rgba(255, 215, 0, 0.2);
}

.form-section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-accent);
    margin: 0 0 var(--spacing-16) 0;
    padding-bottom: var(--spacing-12);
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.form-section-title .icon {
    width: 20px;
    height: 20px;
    fill: var(--color-accent);
}

/* ==========================================
   LABEL HELPERS
   ========================================== */

.form-label .required {
    color: var(--color-error);
    margin-left: var(--spacing-4);
}

.form-label .optional {
    color: var(--color-text-muted);
    font-size: 0.85em;
    font-weight: 400;
}

/* ==========================================
   INLINE CHECKBOX GROUP
   ========================================== */

.form-group--inline {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-16);
}

.form-group--inline .checkbox-item {
    margin-bottom: 0;
}

/* ==========================================
   STICKY FORM ACTIONS
   ========================================== */

.form-actions--sticky {
    position: sticky;
    bottom: -16px;
    background: linear-gradient(to top, var(--color-bg) 70%, transparent);
    padding: 16px;
    margin-top: 24px;
    z-index: 10;
    margin: 24px -16px -16px;
}

.form-actions--sticky .btn {
    min-width: 160px;
}

.form-actions--sticky .btn .icon {
    width: 16px;
    height: 16px;
    fill: currentcolor;
    margin-right: var(--spacing-8);
}

/* ==========================================
   DISABLED STATE
   ========================================== */

.form-is-loading .form-input,
.form-is-loading .form-select,
.form-is-loading .form-textarea,
.form-is-loading .checkbox-item input {
    opacity: 0.5;
    pointer-events: none;
}

.form-is-loading .btn {
    opacity: 0.6;
    pointer-events: none;
    cursor: not-allowed;
}

/* ==========================================
   LOADING OVERLAY
   ========================================== */

.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-loading);
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity var(--transition-normal);
}

.loading-overlay.is-hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-card {
    background: var(--color-parchment);
    border: 2px solid var(--color-primary-dark);
    border-radius: var(--radius-12);
    padding: var(--spacing-32) var(--spacing-40);
    text-align: center;
    box-shadow: var(--shadow-xl);
    max-width: 400px;
    width: 90%;
}

.loading-spinner {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-20);
    border: 3px solid rgba(255, 215, 0, 0.15);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-accent);
    margin: 0 0 var(--spacing-8);
    letter-spacing: 1px;
}

.loading-sub {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* ==========================================
   LEGACY OVERRIDES
   ========================================== */

.form-textarea { min-height: 100px; }

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-16);
    padding: var(--spacing-8);
    background: var(--color-bg);
    border: var(--border-thin);
    border-radius: var(--radius-6);
}

.fieldset-group {
    border: var(--border-thin);
    border-radius: var(--radius-6);
    padding: var(--spacing-16);
    margin-bottom: var(--spacing-16);
}

.fieldset-group legend {
    font-family: var(--font-heading);
    color: var(--color-accent);
    padding: 0 var(--spacing-8);
}

/* ==========================================
   GENERATION PROGRESS BAR
   ========================================== */

#gen-progress {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

.progress-bar {
    background: var(--color-primary-dark);
    border-radius: var(--radius-4);
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.progress-fill {
    height: 100%;
    background: var(--color-accent);
    transition: width 0.3s ease;
    border-radius: var(--radius-4);
    box-shadow: 0 0 8px var(--color-gold-glow);
}

.progress-phase,
.progress-percent {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ==========================================
   GENERATION STATUS (manage table)
   ========================================== */

.gen-progress-text {
    font-size: 0.8rem;
    color: var(--color-accent);
    white-space: nowrap;
}

.gen-status-cell {
    font-size: 0.85rem;
}