/**
 * Talking Snake - Main Stylesheet
 * A warm, accessible color scheme inspired by the talking snake logo
 */

:root {
    /* Warm, friendly palette inspired by the talking snake logo */
    --bg: #fff7e9;              /* Warm cream background */
    --surface: #fff;          /* Clean white cards */
    --primary: #d4763a;          /* Warm orange - friendly & energetic */
    --primary-hover: #c06830;    /* Darker orange for hover */
    --secondary: #5a8f5a;        /* Soft green - snake accent */
    --text: #3d3425;             /* Warm dark brown - easy on eyes */
    --text-muted: #7a6f5f;       /* Muted brown */
    --border: #e5d9c8;           /* Warm border */
    --success: #5a8f5a;          /* Green for success states */
    --error: #c45a4a;            /* Soft red for errors */
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    margin: 0;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1.4;
}

.main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    justify-content: center;
    width: 100%;
}

h1 {
    font-family: Fredoka, sans-serif;
    font-size: 1.75rem;
    margin: 0 0 0.5rem;
    color: var(--primary);
    display: inline;
    vertical-align: baseline;
}

.subtitle {
    color: var(--text-muted);
    margin: 0;
    font-size: 0.9rem;
    display: inline;
    vertical-align: baseline;
}

.header-row {
    margin-bottom: 0.5rem;
    text-align: center;
}

.container {
    max-width: 500px;
    width: 100%;
}

/* Options Row - Style and Language selectors */
.options-row {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    flex-wrap: nowrap;
}

/* Style Selector */
.style-selector,
.language-selector {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: nowrap;
}

.style-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.style-buttons {
    display: flex;
    gap: 0.25rem;
}

.style-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border);
    border-radius: 5px;
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.75rem;
    line-height: 1;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.style-btn i {
    display: block;
    line-height: 1;
}

/* Language buttons use emoji flags */
.style-btn.lang-btn {
    font-size: 1rem;
    line-height: 1;
    padding: 0;
}

.style-btn:hover {
    border-color: var(--primary);
    color: var(--text);
}

.style-btn.active {
    background: rgb(212, 118, 58, 0.15);
    border-color: var(--primary);
    color: var(--primary);
}

/* Auto-detected language indicator */
.style-btn.lang-btn.auto-detected {
    animation: auto-detect-pulse 0.5s ease-out;
    box-shadow: 0 0 0 2px var(--primary);
}

@keyframes auto-detect-pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(212, 118, 58, 0.7);
    }

    50% {
        transform: scale(1.1);
        box-shadow: 0 0 0 4px rgba(212, 118, 58, 0.4);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 0 2px var(--primary);
    }
}

/* Input Section - hidden during processing */
.input-section.hidden {
    display: none;
}

/* Processing Section - two row layout */
.processing-section {
    display: none;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: var(--surface);
    border-radius: 10px;
    border: 1px solid var(--border);
    width: 100%;
}

.processing-section.visible {
    display: flex;
}

/* Row 1: Document info */
.processing-row-1 {
    display: flex;
    align-items: center;
    width: 100%;
}

/* Row 2: Status, progress, buttons */
.processing-row-2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Document Info - fills first row */
.doc-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: var(--text);
    width: 100%;
    min-width: 0;
}

.doc-info:empty {
    display: none;
}

.doc-info .doc-name {
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex: 1;
    min-width: 0;
}

.doc-info .doc-name i {
    color: var(--primary);
    flex-shrink: 0;
}

.doc-info .doc-name-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.doc-info .doc-pages,
.doc-info .doc-chars {
    color: var(--text-muted);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.doc-info .doc-pages i,
.doc-info .doc-chars i {
    font-size: 0.7rem;
    opacity: 0.6;
}

.doc-info .doc-style,
.doc-info .doc-lang {
    color: var(--text-muted);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    white-space: nowrap;
    flex-shrink: 0;
    opacity: 0.7;
}

.doc-info .doc-style i {
    font-size: 0.7rem;
}

/* Status in processing */
.processing-section .status {
    padding: 0;
    background: none;
    font-size: 0.8rem;
    white-space: nowrap;
    flex-shrink: 0;
}

/* Processing progress bar */
.processing-progress-container {
    flex: 1;
    height: 6px;
    background: var(--bg);
    border-radius: 3px;
    overflow: hidden;
    min-width: 60px;
}

.processing-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, #c06030 100%);
    border-radius: 3px;
    width: 0%;
    transition: width 0.3s ease;
}

/* Control buttons row */
.control-buttons {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.control-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    color: var(--text-muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.control-btn.hidden {
    display: none;
}

.control-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgb(212, 118, 58, 0.08);
}

.pause-btn:hover {
    color: var(--primary);
}

.control-btn.play-btn {
    color: var(--success);
    border-color: var(--success);
}

.control-btn.play-btn:hover {
    background: rgba(116, 184, 22, 0.15);
}

.stop-btn:hover {
    color: var(--error);
    border-color: var(--error);
    background: rgb(196, 90, 74, 0.08);
}

@keyframes gradient-idle {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 1rem 0;
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer;
    background: var(--surface);
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--primary);
    background: rgb(212, 118, 58, 0.08);
}

.drop-zone p {
    margin: 0 0 0.75rem;
    font-size: 0.95rem;
}

.drop-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
    display: block;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 0.75rem;
}

.tab {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.15s ease;
}

.tab:hover {
    border-color: var(--primary);
    color: var(--text);
}

.tab.active {
    background: rgb(212, 118, 58, 0.12);
    border-color: var(--primary);
    color: var(--primary);
}

.tab-content {
    display: none;
    opacity: 0;
    transform: translateY(-8px);
}

.tab-content.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
    animation: tab-fade-in 0.2s ease-out;
}

@keyframes tab-fade-in {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

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

/* URL Form */
.url-form {
    background: var(--surface);
    border-radius: 8px;
    padding: 0.75rem;
}

.url-input-row {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.url-input-row input[type="url"] {
    flex: 1;
    height: 40px;
    padding: 0 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.9rem;
    transition: border-color 0.15s ease;
}

.url-input-row input[type="url"]:focus {
    outline: none;
    border-color: var(--primary);
}

.url-input-row input[type="url"]::placeholder {
    color: var(--text-muted);
}

/* Text Form */
.text-form {
    background: var(--surface);
    border-radius: 8px;
    padding: 1rem;
}

.text-form textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    transition: border-color 0.15s ease;
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
    line-height: 1.5;
}

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

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

/* Buttons */
.submit-btn {
    width: 100%;
    padding: 0.6rem 1rem;
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    margin-bottom: 0.5rem;
}

.submit-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgb(212, 118, 58, 0.08);
}

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

/* URL form button override - must come after base .submit-btn */
.url-input-row .submit-btn {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    padding: 0;
    margin: 0;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
}

.url-input-row .submit-btn i {
    margin: 0;
    padding: 0;
    line-height: 1;
    display: block;
}

input[type="file"] {
    display: none;
}

.hidden-file-input {
    display: none !important;
}

.file-label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.file-label:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgb(212, 118, 58, 0.08);
}

/* Device Info - Subtle footer-like display */
.device-info {
    display: none;
    justify-content: center;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 1rem;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    opacity: 0.7;
    line-height: 1.2;
}

.device-info.visible {
    display: flex;
    flex-wrap: wrap;
    row-gap: 0.2rem;
}

.device-info i {
    color: var(--primary);
    opacity: 0.8;
}

.device-memory {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.device-memory i {
    font-size: 0.6rem;
}

.device-ephemeral {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--success);
}

.device-ephemeral i {
    color: var(--success);
    font-size: 0.6rem;
}

.device-timing {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--text-muted);
}

.device-timing i {
    font-size: 0.6rem;
}

/* Model state indicators */
.model-state {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.65rem;
}

.model-state i {
    font-size: 0.55rem;
}

.model-loaded {
    background: rgb(16, 185, 129, 0.15);
    color: var(--success);
}

.model-loading,
.model-unloading {
    background: rgb(245, 158, 11, 0.15);
    color: #f59e0b;
}

.model-unloaded {
    background: rgb(107, 114, 128, 0.15);
    color: var(--text-muted);
}

.device-batch {
    background: var(--surface);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.65rem;
}

/* Icon spacing in buttons and tabs */
.tab i,
.submit-btn i,
.file-label i {
    margin-right: 0.4rem;
}

/* Status Messages */
.status {
    font-size: 0.85rem;
    display: none;
}

.status.visible {
    display: block;
}

.status i {
    margin-right: 0.4rem;
}

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

.status.error {
    color: var(--error);
}

.status.success {
    color: var(--success);
}

/* Audio Player */
.player {
    margin-top: 1rem;
    width: 100%;
    display: none;
    padding: 0.75rem 1rem;
    background: var(--surface);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.player.visible {
    display: block;
    animation: slide-in 0.3s ease-out;
}

.player.deleting {
    animation: slide-out 0.3s ease-out forwards;
}

@keyframes slide-in {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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

@keyframes slide-out {
    from {
        opacity: 1;
        transform: translateY(0);
    }

    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* Hidden audio element */
#audio {
    display: none;
}

/* Custom Audio Player */
.custom-player {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.player-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.player-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgb(212, 118, 58, 0.08);
}

.player-btn.play-btn {
    width: 40px;
    height: 40px;
    font-size: 0.9rem;
}

.player-btn.volume-btn {
    width: 32px;
    height: 32px;
    font-size: 0.8rem;
}

.player-btn.volume-btn:hover {
    color: var(--text);
}

.player-btn.download-btn {
    width: 32px;
    height: 32px;
    font-size: 0.8rem;
}

.player-btn.download-btn:hover {
    color: var(--primary);
}

.player-btn.delete-btn {
    width: 32px;
    height: 32px;
    font-size: 0.8rem;
}

.player-btn.delete-btn:hover {
    color: var(--error);
    border-color: var(--error);
    background: rgb(196, 90, 74, 0.08);
}

.progress-container {
    flex: 1;
    height: 6px;
    background: var(--bg);
    border-radius: 3px;
    position: relative;
    cursor: pointer;
}

.progress-bar {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
    width: 0%;
    transition: width 0.1s ease;
    pointer-events: none;
}

.progress-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    margin: 0;
    appearance: none;
}

.progress-slider::-webkit-slider-thumb {
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
}

.progress-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.time-display {
    font-size: 0.75rem;
    color: var(--text-muted);
    min-width: 80px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.filename {
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
    word-break: break-all;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.filename-meta {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: auto;
}

/* Spinner Animation */
.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--text-muted);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 0.4rem;
    vertical-align: -2px;
}

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

/* Footer */
footer {
    margin-top: auto;
    padding-top: 1.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    flex-shrink: 0;
}

footer a {
    color: var(--primary);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

footer i.fa-heart {
    color: var(--error);
}

footer i.fa-github {
    margin-right: 0.2rem;
}

/* Logo */
.logo {
    width: 250px;
    height: auto;
    margin-bottom: 0.75rem;
}

/* Tablet styles */
@media (width <= 768px) {
    body {
        padding: 1rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    .logo {
        width: 200px;
    }

    .drop-zone {
        padding: 1.25rem 1rem;
    }

    .tabs {
        flex-direction: column;
    }

    .tab {
        width: 100%;
    }
}

/* Mobile styles */
@media (width <= 480px) {
    body {
        padding: 0.75rem;
    }

    h1 {
        font-size: 1.35rem;
    }

    .subtitle {
        font-size: 0.8rem;
    }

    .logo {
        width: 160px;
    }

    .drop-zone {
        padding: 1rem;
    }

    .drop-zone p {
        font-size: 0.9rem;
    }

    .url-form {
        padding: 0.75rem;
    }

    .url-form input[type="url"] {
        padding: 0.5rem;
        font-size: 0.85rem;
    }

    .submit-btn,
    .file-label {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }

    .filename {
        font-size: 0.75rem;
        padding: 0.4rem 0.5rem;
    }

    footer {
        font-size: 0.7rem;
        text-align: center;
    }
}

/* Ensure touch targets are large enough */
@media (pointer: coarse) {
    .tab,
    .submit-btn,
    .file-label {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}