/* ============================================================
   PNG TO WEBP CONVERTER — STYLESHEET
   UI modernized using requested theme
============================================================ */

.png-to-webp-converter * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.png-to-webp-converter {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: #e2e8f0;
    line-height: 1.5;
    position: relative;
    background-color: transparent; /* Assuming site bg */
}

/* ── Container ── */
.png-to-webp-converter .container {
    max-width: 1200px;
    margin: 2.5rem auto;
    padding: 2.5rem;
    background: #020617;
    border-radius: 1.5rem;
    border: 2px solid rgba(220, 38, 38, 0.2);
    box-shadow: 0 0 80px rgba(220, 38, 38, 0.35), 0 0 0 2px rgba(220, 38, 38, 0.8);
    transition: all 0.5s ease-out;
}

.png-to-webp-converter .container:hover {
    box-shadow: 0 0 65px rgba(220, 38, 38, 0.75), 0 0 0 4px rgba(220, 38, 38, 1);
}

@media (max-width: 768px) {
    .png-to-webp-converter .container {
        margin: 1rem 0.5rem;
        padding: 1.25rem;
        border-radius: 1rem;
    }
}

/* ── Toast Notification System ── */
.png-to-webp-converter .toast-container {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    pointer-events: none;
}

.png-to-webp-converter .toast {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 0.75rem;
    padding: 0.875rem 1.25rem;
    min-width: 280px;
    max-width: 380px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    pointer-events: all;
    animation: toastIn 0.3s ease-out;
    font-size: 0.875rem;
    color: #e2e8f0;
}

.png-to-webp-converter .toast.toast-error { border-left: 4px solid #dc2626; }
.png-to-webp-converter .toast.toast-success { border-left: 4px solid #22c55e; }
.png-to-webp-converter .toast.toast-warning { border-left: 4px solid #f59e0b; }

.png-to-webp-converter .toast-icon { flex-shrink: 0; width: 1.25rem; height: 1.25rem; margin-top: 0.1rem; }
.png-to-webp-converter .toast-error .toast-icon { color: #dc2626; }
.png-to-webp-converter .toast-success .toast-icon { color: #22c55e; }

.png-to-webp-converter .toast-dismiss {
    margin-left: auto;
    background: none;
    border: none;
    color: #64748b;
    cursor: pointer;
    padding: 0;
    font-size: 1rem;
    line-height: 1;
}
.png-to-webp-converter .toast-dismiss:hover { color: #e2e8f0; }
.png-to-webp-converter .toast.toast-hiding { animation: toastOut 0.3s ease-in forwards; }

/* ── Header ── */
.png-to-webp-converter .header {
    text-align: center;
    margin-bottom: 2.5rem;
}
.png-to-webp-converter .badge {
    display: inline-block;
    padding: 0.375rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: #dc2626;
    text-transform: uppercase;
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: 9999px;
}
.png-to-webp-converter .title {
    font-size: 2.25rem;
    font-weight: 900;
    color: white;
    margin-bottom: 0.75rem;
    letter-spacing: -0.025em;
}
.png-to-webp-converter .title-accent { color: #dc2626; }
.png-to-webp-converter .subtitle {
    color: #94a3b8;
    max-width: 28rem;
    margin: 0 auto;
    font-size: 0.9375rem;
}
@media (max-width: 768px) {
    .png-to-webp-converter .title { font-size: 1.875rem; }
}

/* ── Drop Zone ── */
.png-to-webp-converter .drop-zone {
    position: relative;
    border: 2px dashed rgba(220, 38, 38, 0.4);
    background: rgba(15, 23, 42, 0.4);
    border-radius: 1rem;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 2rem;
}
.png-to-webp-converter .drop-zone:hover {
    border-color: #dc2626;
    background: rgba(30, 41, 59, 0.6);
}
.png-to-webp-converter .drop-zone.drag-over {
    border-color: #dc2626;
    background: rgba(220, 38, 38, 0.1);
}
.png-to-webp-converter .drop-zone-icon {
    width: 4rem;
    height: 4rem;
    background: #1e293b;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    border: 1px solid #334155;
    transition: all 0.3s;
}
.png-to-webp-converter .drop-zone:hover .drop-zone-icon { background: #dc2626; }
.png-to-webp-converter .drop-zone-icon svg {
    width: 2rem;
    height: 2rem;
    color: #94a3b8;
}
.png-to-webp-converter .drop-zone:hover .drop-zone-icon svg { color: white; }
.png-to-webp-converter .drop-zone-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}
.png-to-webp-converter .drop-zone-subtitle {
    font-size: 0.875rem;
    color: #64748b;
    margin-bottom: 1rem;
}
.png-to-webp-converter .drop-zone-info {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(30, 41, 59, 0.5);
    border-radius: 0.5rem;
    font-size: 0.75rem;
    color: #94a3b8;
    border: 1px solid #334155;
}
.png-to-webp-converter .drop-zone-info svg { width: 1rem; height: 1rem; color: #dc2626; }
.png-to-webp-converter input[type="file"] {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; z-index: 5;
}

/* ── Main Editor ── */
.png-to-webp-converter .main-editor { display: none; }
.png-to-webp-converter .main-editor.active { display: block; animation: fadeIn 0.4s ease-out; }

/* ── Quality Section ── */
.png-to-webp-converter .quality-section {
    background: rgba(15, 23, 42, 0.6);
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid #1e293b;
    margin-bottom: 2rem;
}
.png-to-webp-converter .quality-header {
    display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem;
}
.png-to-webp-converter .quality-label {
    font-size: 0.875rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #94a3b8;
}
.png-to-webp-converter .quality-value {
    font-size: 1.125rem; font-weight: 900; color: #dc2626; font-family: 'Courier New', monospace;
}
.png-to-webp-converter .slider-container { position: relative; margin-bottom: 1.5rem; }
.png-to-webp-converter input[type="range"] {
    width: 100%; height: 0.5rem; border-radius: 0.25rem; background: #1e293b; outline: none; -webkit-appearance: none;
}
.png-to-webp-converter input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; width: 1.5rem; height: 1.5rem; border-radius: 50%; background: #dc2626;
    cursor: pointer; box-shadow: 0 0 10px rgba(220, 38, 38, 0.5); transition: all 0.2s;
}
.png-to-webp-converter input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1); box-shadow: 0 0 15px rgba(220, 38, 38, 0.7);
}

/* ── Buttons ── */
.png-to-webp-converter .btn {
    width: 100%; padding: 1rem 2rem; border: none; border-radius: 1rem; font-weight: 900;
    font-size: 1rem; cursor: pointer; transition: all 0.3s; text-align: center; display: inline-block;
}
.png-to-webp-converter .btn-primary { background: #dc2626; color: white; box-shadow: 0 0 20px rgba(220, 38, 38, 0.3); }
.png-to-webp-converter .btn-primary:hover:not(:disabled) { background: #ef4444; box-shadow: 0 0 30px rgba(220, 38, 38, 0.5); }
.png-to-webp-converter .btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.png-to-webp-converter .btn-secondary {
    background: #334155; color: white; border: 1px solid #475569; padding: 0.75rem 1.5rem; font-size: 0.875rem;
}
@media (min-width: 768px) { .png-to-webp-converter .btn-secondary { width: auto; } }
.png-to-webp-converter .btn-secondary:hover { background: #475569; }
.png-to-webp-converter .btn-text {
    background: none; color: #64748b; border: none; padding: 0.5rem 1rem; border-radius: 0.5rem; transition: color 0.3s;
}
.png-to-webp-converter .btn-text:hover { color: white; }

/* ── Images Grid ── */
.png-to-webp-converter .images-grid {
    display: grid; grid-template-columns: 1fr; gap: 1.25rem; max-height: 600px;
    overflow-y: auto; padding: 4px; scrollbar-width: thin; scrollbar-color: #dc2626 #1e293b;
    margin-bottom: 2rem;
}
.png-to-webp-converter .images-grid::-webkit-scrollbar { width: 8px; }
.png-to-webp-converter .images-grid::-webkit-scrollbar-track { background: #1e293b; border-radius: 10px; }
.png-to-webp-converter .images-grid::-webkit-scrollbar-thumb { background: #dc2626; border-radius: 10px; }

@media (min-width: 640px) { .png-to-webp-converter .images-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .png-to-webp-converter .images-grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; } }

/* ── Image Card ── */
.png-to-webp-converter .image-card {
    background: rgba(15, 23, 42, 0.6); padding: 1.25rem; border-radius: 1rem;
    border: 1px solid #1e293b; display: flex; flex-direction: column; gap: 0.75rem; position: relative;
    transition: transform 0.2s, border-color 0.2s;
}
.png-to-webp-converter .delete-btn {
    position: absolute; top: 0.75rem; right: 0.75rem; background: rgba(220, 38, 38, 0.8);
    color: white; border: none; border-radius: 0.5rem; padding: 0.5rem; cursor: pointer; z-index: 10;
}
.png-to-webp-converter .delete-btn:hover { background: #dc2626; }
.png-to-webp-converter .delete-btn svg { width: 1rem; height: 1rem; }

.png-to-webp-converter .image-preview {
    width: 100%; height: 160px; background: #000; border-radius: 0.75rem; border: 1px solid #1e293b;
    overflow: hidden; position: relative; display: flex; align-items: center; justify-content: center;
}
.png-to-webp-converter .image-preview img { width: 100%; height: 100%; object-fit: cover; }
.png-to-webp-converter .status-overlay {
    position: absolute; inset: 0; background: rgba(0, 0, 0, 0.8); backdrop-filter: blur(4px);
    display: none; align-items: center; justify-content: center; flex-direction: column;
}
.png-to-webp-converter .status-overlay.active { display: flex; }
.png-to-webp-converter .spinner {
    width: 2rem; height: 2rem; border: 2px solid transparent; border-top-color: #dc2626;
    border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 0.5rem;
}
.png-to-webp-converter .status-overlay p { font-size: 0.75rem; color: #94a3b8; }
.png-to-webp-converter .complete-overlay {
    position: absolute; inset: 0; background: rgba(34, 197, 94, 0.2); backdrop-filter: blur(4px);
    display: none; align-items: center; justify-content: center;
}
.png-to-webp-converter .complete-overlay.active { display: flex; }
.png-to-webp-converter .checkmark { background: #22c55e; border-radius: 50%; padding: 0.75rem; }
.png-to-webp-converter .checkmark svg { width: 1.5rem; height: 1.5rem; color: white; }

.png-to-webp-converter .card-header { display: flex; align-items: center; justify-content: space-between; margin-top: 1rem; }
.png-to-webp-converter .format-badge { display: flex; align-items: center; gap: 0.5rem; }
.png-to-webp-converter .format-badge span { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.png-to-webp-converter .format-from { color: #94a3b8; }
.png-to-webp-converter .format-arrow { width: 1rem; height: 1rem; color: #475569; }
.png-to-webp-converter .format-arrow.active { color: #22c55e; }
.png-to-webp-converter .format-to { color: #475569; }
.png-to-webp-converter .format-to.active { color: #22c55e; }

.png-to-webp-converter .card-footer { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; margin-top: 0.5rem; }
.png-to-webp-converter .filename { font-size: 0.75rem; color: #94a3b8; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
.png-to-webp-converter .filesize { font-size: 0.75rem; font-family: 'Courier New', monospace; color: #94a3b8; background: #1e293b; padding: 0.125rem 0.5rem; border-radius: 0.25rem; flex-shrink: 0; }
.png-to-webp-converter .download-link {
    display: none; margin-top: 0.25rem; text-align: center; background: rgba(220, 38, 38, 0.2);
    color: #f87171; padding: 0.5rem 1rem; border-radius: 0.5rem; font-size: 0.75rem; font-weight: 700; text-decoration: none;
}
.png-to-webp-converter .download-link.active { display: block; }
.png-to-webp-converter .download-link:hover { background: rgba(220, 38, 38, 0.3); }

/* ── Progress Bar ── */
.png-to-webp-converter .progress-bar-container {
    height: 0.5rem; background: #1e293b; border-radius: 9999px; overflow: hidden; margin-top: 1rem;
}
.png-to-webp-converter .progress-bar {
    height: 100%; background: linear-gradient(to right, #dc2626, #ef4444); width: 0%; transition: width 0.3s ease;
}
.png-to-webp-converter .progress-text { font-size: 0.75rem; color: #94a3b8; text-align: center; margin-top: 0.5rem; }

/* ── Action buttons layout ── */
.png-to-webp-converter .action-buttons {
    display: none; flex-direction: column; gap: 1rem; padding-top: 1.5rem; border-top: 1px solid rgba(30, 41, 59, 0.5);
}
.png-to-webp-converter .action-buttons.active { display: flex; }
@media (min-width: 768px) {
    .png-to-webp-converter .action-buttons { flex-direction: row; align-items: center; justify-content: space-between; gap: 1.5rem; }
    .png-to-webp-converter .action-group { flex-direction: row; align-items: center; width: auto; gap: 1rem; }
    .png-to-webp-converter .btn-zip { width: auto; }
}
.png-to-webp-converter .action-group { display: flex; flex-direction: column; gap: 0.75rem; width: 100%; }
.png-to-webp-converter .btn-zip { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; }
.png-to-webp-converter .btn-zip svg { width: 1.25rem; height: 1.25rem; }

/* ── Animations ── */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeOut { from { opacity: 1; transform: scale(1); } to { opacity: 0; transform: scale(0.95); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes toastIn { from { opacity: 0; transform: translateX(1rem); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(1rem); } }