/* ============================================================
   Favicon Generator — CSS
   Matches the dark-panel aesthetic shown in the reference image.
   ============================================================ */

/* ── CSS Tokens ─────────────────────────────────────────── */
.fg-wrapper {
    --fg-bg:           #0f1117;
    --fg-panel-bg:     #1a1f2e;
    --fg-panel-border: rgba(255,255,255,0.07);
    --fg-accent:       #6c72f1;
    --fg-accent-hover: #7c83ff;
    --fg-success:      #22c55e;
    --fg-success-hover:#16a34a;
    --fg-text:         #e2e8f0;
    --fg-muted:        #8892a4;
    --fg-dropzone-bg:  #242a3a;
    --fg-dropzone-border: rgba(108,114,241,0.35);
    --fg-icon-bg:      #ffffff;
    --fg-icon-border:  rgba(255,255,255,0.12);
    --fg-radius:       16px;
    --fg-radius-sm:    10px;
    --fg-shadow:       0 4px 30px rgba(0,0,0,0.4);

    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--fg-bg);
    color: var(--fg-text);
    padding: 28px 20px;
    min-height: 100%;
    box-sizing: border-box;
}

/* ── Layout ─────────────────────────────────────────────── */
.fg-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

@media (max-width: 700px) {
    .fg-layout { grid-template-columns: 1fr; }
}

/* ── Panel ──────────────────────────────────────────────── */
.fg-panel {
    background: var(--fg-panel-bg);
    border: 1px solid var(--fg-panel-border);
    border-radius: var(--fg-radius);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: var(--fg-shadow);
}

.fg-panel__header {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--fg-text);
}

.fg-panel__icon {
    display: flex;
    align-items: center;
    color: var(--fg-accent);
}

/* ── Drop Zone ──────────────────────────────────────────── */
.fg-dropzone {
    border: 2px dashed var(--fg-dropzone-border);
    border-radius: var(--fg-radius-sm);
    background: var(--fg-dropzone-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 36px 20px;
    gap: 10px;
    cursor: pointer;
    transition: border-color 0.25s ease, background 0.25s ease, transform 0.2s ease;
    position: relative;
    min-height: 200px;
}

.fg-file-hidden {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.fg-dropzone:hover,
.fg-dropzone.fg-dragover {
    border-color: var(--fg-accent);
    background: rgba(108,114,241,0.08);
    transform: translateY(-2px);
}

.fg-dropzone__icon {
    color: var(--fg-accent);
    opacity: 0.85;
    transition: transform 0.3s ease;
}

.fg-dropzone:hover .fg-dropzone__icon {
    transform: translateY(-4px);
}

.fg-dropzone__preview {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    pointer-events: none;
}

.fg-dropzone__preview img {
    max-width: 120px;
    max-height: 120px;
    object-fit: contain;
    border-radius: 8px;
    opacity: 0.85;
}

.fg-dropzone__label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--fg-text);
    margin: 0;
    pointer-events: none;
}

.fg-dropzone__hint {
    font-size: 0.8rem;
    color: var(--fg-muted);
    margin: 0;
    pointer-events: none;
}

/* ── Hover overlay when an image is already loaded ───── */
.fg-dropzone--has-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(10, 12, 20, 0.62);
    border-radius: var(--fg-radius-sm);
    opacity: 0;
    transition: opacity 0.25s ease;
    z-index: 2;
    pointer-events: none;
}

.fg-dropzone--has-image:hover::after {
    opacity: 1;
}

.fg-dropzone--has-image .fg-dropzone__label,
.fg-dropzone--has-image .fg-dropzone__hint {
    position: relative;
    z-index: 3;          /* above the ::after overlay */
    opacity: 0;
    transition: opacity 0.25s ease;
    text-shadow: 0 1px 4px rgba(0,0,0,0.9);
}

.fg-dropzone--has-image:hover .fg-dropzone__label,
.fg-dropzone--has-image:hover .fg-dropzone__hint {
    opacity: 1;
}

/* ── File Badge ─────────────────────────────────────────── */
.fg-file-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--fg-panel-border);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.875rem;
    color: var(--fg-muted);
    word-break: break-all;
}

.fg-file-badge svg { flex-shrink: 0; color: var(--fg-accent); }

/* ── Buttons ────────────────────────────────────────────── */
.fg-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    border: none;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    padding: 13px 18px;
    width: 100%;
    transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease, opacity 0.2s ease;
    letter-spacing: 0.01em;
}

.fg-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none !important;
}

.fg-btn--generate {
    background: var(--fg-accent);
    color: #fff;
    box-shadow: 0 4px 18px rgba(108,114,241,0.35);
}

.fg-btn--generate:not(:disabled):hover {
    background: var(--fg-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(108,114,241,0.45);
}

.fg-btn--download {
    background: var(--fg-success);
    color: #fff;
    box-shadow: 0 4px 18px rgba(34,197,94,0.3);
    margin-top: auto;
}

.fg-btn--download:not(:disabled):hover {
    background: var(--fg-success-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(34,197,94,0.4);
}

/* ── Empty State ────────────────────────────────────────── */
.fg-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex: 1;
    min-height: 220px;
    color: var(--fg-muted);
    text-align: center;
}

.fg-empty-state__icon {
    opacity: 0.3;
}

.fg-empty-state p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

.fg-empty-state strong {
    color: var(--fg-accent);
}

/* ── Icons Grid ─────────────────────────────────────────── */
.fg-icons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 14px;
    flex: 1;
}

.fg-icon-card {
    background: var(--fg-icon-bg);
    border: 1px solid var(--fg-icon-border);
    border-radius: var(--fg-radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding: 12px 8px;
    gap: 8px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    overflow: hidden;
    min-height: 120px;
}

.fg-icon-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}

.fg-icon-card canvas {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    image-rendering: auto;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: smooth;
}

.fg-icon-card__label {
    position: relative;
    z-index: 1;
    font-size: 0.72rem;
    font-weight: 600;
    color: #6b7280;
    margin-top: auto;
    padding-top: 20px;
}

/* Loading spinner on generate btn */
.fg-btn--loading .fg-spin {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: fg-spin 0.7s linear infinite;
}

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

/* Fade-in animation for generated cards */
@keyframes fg-fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.fg-icon-card {
    animation: fg-fadeUp 0.35s ease both;
}