/* ========================================
   Beep Talk - Styles
   Minimal Black & White + Orange Retro Design
   2-Column Layout
   ======================================== */

/* CSS Variables - 3 Colors Only */
:root {
    --bg: #000000;
    --fg: #ffffff;
    --accent: #FF4500;
    --font-en: 'Press Start 2P', monospace;
    --font-ja: 'DotGothic16', sans-serif;
    --font-size-en: 9px;
    --font-size-ja: 11px;
    --line-height: 1.6;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-en);
    font-size: var(--font-size-en);
    background-color: var(--bg);
    color: var(--fg);
    min-height: 100vh;
    line-height: var(--line-height);
}

/* Japanese language mode - only affects body text, not UI elements */
body.lang-ja {
    font-family: var(--font-ja);
    font-size: var(--font-size-ja);
    line-height: var(--line-height);
}

/* Elements that ALWAYS use English font regardless of language */
.title,
.panel-title,
.btn,
.btn-small,
.param-value,
.zoom-level,
.range-input-group input,
.preset-btn,
.lang-toggle,
.char-count {
    font-family: var(--font-en) !important;
    font-size: var(--font-size-en) !important;
    line-height: var(--line-height) !important;
}

/* Title is larger */
.title {
    font-size: 1.5rem !important;
}

/* Container */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
}

.header-top {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.title {
    font-family: var(--font-en);
    font-size: 1.5rem;
    letter-spacing: 2px;
}

.lang-toggle {
    font-family: var(--font-en);
    font-size: var(--font-size-en);
    padding: 0.4rem 0.6rem;
    border: 2px solid var(--fg);
    background: var(--bg);
    color: var(--fg);
    cursor: pointer;
    transition: all 0.15s;
}

.lang-toggle:hover {
    background: var(--fg);
    color: var(--bg);
}

.lang-label {
    display: inline-block;
    min-width: 1.5rem;
}

.subtitle {
    font-size: var(--font-size-en);
    opacity: 0.7;
}

body.lang-ja .subtitle {
    font-family: var(--font-ja);
    font-size: var(--font-size-ja);
}

/* Two Column Layout */
.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 800px) {
    .two-column {
        grid-template-columns: 1fr;
    }
}

.column-left,
.column-right {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Panels */
.panel {
    border: 3px solid var(--fg);
    padding: 1rem;
}

.panel-title {
    font-family: var(--font-en);
    font-size: var(--font-size-en);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.bullet {
    color: var(--accent);
}

.panel-hint {
    font-size: var(--font-size-en);
    opacity: 0.6;
    margin-bottom: 0.75rem;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--fg);
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.2s;
}

.upload-zone:hover,
.upload-zone.dragover {
    background-color: rgba(255, 255, 255, 0.1);
}

.upload-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.upload-zone p {
    font-size: var(--font-size-en);
    margin-bottom: 0.25rem;
}

.upload-hint {
    opacity: 0.5;
}

.file-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem;
    border: 2px solid var(--accent);
    margin-top: 0.75rem;
}

.file-info[hidden] {
    display: none;
}

.file-name {
    font-size: var(--font-size-en);
    color: var(--accent);
    word-break: break-all;
}

/* Waveform */
.waveform-wrapper {
    overflow-x: auto;
    margin-bottom: 0.75rem;
}

.waveform-container {
    position: relative;
    height: 100px;
    border: 2px solid var(--fg);
    background: var(--bg);
    min-width: 100%;
}

#waveformCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

.selection-overlay {
    position: absolute;
    top: 0;
    height: 100%;
    background: rgba(255, 69, 0, 0.25);
    border-left: 2px solid var(--accent);
    border-right: 2px solid var(--accent);
    pointer-events: none;
    display: none;
}

/* Zoom Controls */
.zoom-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-size: var(--font-size-en);
}

.zoom-level {
    font-family: var(--font-en);
    min-width: 3rem;
    text-align: center;
}

/* Range Inputs */
.range-inputs {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.range-input-group {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: var(--font-size-en);
}

.range-input-group label {
    min-width: 2.5rem;
}

.range-input-group input {
    font-family: var(--font-en);
    font-size: var(--font-size-en);
    width: 5rem;
    padding: 0.25rem;
    background: var(--bg);
    border: 2px solid var(--fg);
    color: var(--accent);
    text-align: right;
    -moz-appearance: textfield;
    appearance: textfield;
}

.range-input-group input::-webkit-inner-spin-button,
.range-input-group input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
}

.range-input-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.range-input-group input:hover {
    border-color: var(--accent);
}

/* Preset Grid */
.preset-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.3rem;
}

.preset-btn {
    font-family: var(--font-en);
    font-size: 6px;
    padding: 0.3rem 0.2rem;
    border: 2px solid var(--fg);
    background: var(--bg);
    color: var(--fg);
    cursor: pointer;
    transition: all 0.15s;
    text-align: center;
    overflow: hidden;
    white-space: nowrap;
}

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

.preset-btn.active {
    background: var(--fg);
    color: var(--bg);
}

.preset-emoji {
    font-size: 1rem;
    display: block;
    margin-bottom: 0.2rem;
    font-family: sans-serif;
}

/* Parameters */
.param-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.param-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.param-item label {
    font-size: var(--font-size-ja);
    min-width: 4rem;
}

.param-item input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 6px;
    background: var(--fg);
    border-radius: 0;
    outline: none;
}

.param-item input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--bg);
    border: 2px solid var(--fg);
    cursor: pointer;
}

.param-item input[type="range"]::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--bg);
    border: 2px solid var(--fg);
    cursor: pointer;
    border-radius: 0;
}

.param-value {
    font-family: var(--font-en);
    font-size: var(--font-size-en);
    color: var(--accent);
    min-width: 3rem;
    text-align: right;
}

/* Text Input */
.text-input {
    width: 100%;
    padding: 0.75rem;
    font-family: inherit;
    font-size: inherit;
    background: var(--bg);
    border: 2px solid var(--fg);
    color: var(--fg);
    resize: vertical;
    min-height: 80px;
    max-height: 150px;
    line-height: 1.8;
}

.text-input:focus {
    outline: none;
    border-color: var(--accent);
}

.text-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.char-count {
    text-align: right;
    font-size: var(--font-size-en);
    opacity: 0.5;
    margin-top: 0.5rem;
}

/* Buttons */
.btn {
    font-family: var(--font-en);
    font-size: var(--font-size-en);
    padding: 0.6rem 1rem;
    border: 2px solid var(--fg);
    background: var(--bg);
    color: var(--fg);
    cursor: pointer;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-icon {
    font-size: 1.2rem;
    line-height: 1;
}

.btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
}

.btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: calc(var(--font-size-en) * 0.8);
}

.btn-primary {
    background: var(--fg);
    color: var(--bg);
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg);
}

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

.btn-accent:hover:not(:disabled) {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg);
}

/* Controls Section */
.controls {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Progress */
.progress-container {
    text-align: center;
    margin-top: 0.75rem;
}

.progress-bar {
    height: 6px;
    border: 2px solid var(--fg);
    margin-bottom: 0.5rem;
    background: var(--bg);
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: var(--accent);
    transition: width 0.1s;
}

.progress-text {
    font-size: var(--font-size-en);
    opacity: 0.7;
}

/* Footer */
.footer {
    text-align: center;
    padding: 1rem;
    border-top: 2px solid var(--fg);
    margin-top: 1.5rem;
}

.footer p {
    font-size: calc(var(--font-size-en) * 0.8);
    opacity: 0.5;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--fg);
}