/**
 * Talk and Drop - Styles
 * Version: 3.1
 * Date: 2025-12-31
 * Branding: Grayscale minimaliste
 *
 * Palette:
 * - Charcoal: #1f2937 (primaire)
 * - Steel: #374151 (secondaire)
 * - Slate: #6b7280 (tertiaire)
 * - Silver: #9ca3af (desactive)
 * - Cloud: #e5e7eb (bordures)
 * - Snow: #f9fafb (backgrounds)
 * - White: #ffffff
 * - Red Accent: #dc2626 (enregistrement)
 */

/* ========== VARIABLES CSS ========== */
:root {
    /* Couleurs Talk and Drop */
    --tad-charcoal: #1f2937;
    --tad-steel: #374151;
    --tad-slate: #6b7280;
    --tad-silver: #9ca3af;
    --tad-cloud: #e5e7eb;
    --tad-snow: #f9fafb;
    --tad-white: #ffffff;
    --tad-red: #dc2626;
    --tad-red-light: #ef4444;

    /* Espacements */
    --tad-spacing-xs: 4px;
    --tad-spacing-sm: 8px;
    --tad-spacing-md: 16px;
    --tad-spacing-lg: 24px;
    --tad-spacing-xl: 32px;
    --tad-spacing-2xl: 48px;

    /* Border-radius */
    --tad-radius-sm: 6px;
    --tad-radius-md: 8px;
    --tad-radius-lg: 12px;
    --tad-radius-xl: 16px;
    --tad-radius-2xl: 20px;
    --tad-radius-full: 50%;

    /* Transitions */
    --tad-transition-fast: 0.15s ease;
    --tad-transition-base: 0.2s ease;
    --tad-transition-slow: 0.3s ease;

    /* Shadows */
    --tad-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --tad-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.02), 0 12px 24px rgba(0, 0, 0, 0.04);
    --tad-shadow-lg: 0 8px 20px rgba(31, 41, 55, 0.2);
    --tad-shadow-xl: 0 12px 30px rgba(31, 41, 55, 0.3);
}

/* ========== RESET & BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #fafafa;
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
    color: var(--tad-charcoal);
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ========== LAYOUT MOBILE-FIRST ========== */
.main-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    gap: 20px;
    padding: 20px 15px;
    padding-bottom: 80px;
    width: 100%;
    scroll-snap-type: y proximity;
}

/* ========== COLONNES ========== */
.left-column,
.right-column {
    width: 100%;
    background: var(--tad-white);
    border-radius: var(--tad-radius-xl);
    padding: 25px 20px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--tad-shadow-md);
    border: 1px solid #f3f4f6;
}

.center-column {
    width: 100%;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.column-title {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--tad-silver);
    margin-bottom: 15px;
    font-weight: 400;
}

/* ========== TEXT DISPLAY ========== */
.text-display {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
    background: var(--tad-snow);
    border-radius: var(--tad-radius-lg);
    border: 1px solid #f3f4f6;
    position: relative;
}

.text-content-verbatim,
.text-content-transformed {
    white-space: pre-wrap;
    word-wrap: break-word;
    animation: fadeText 300ms ease-out;
}

.text-content-verbatim {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.5;
    color: var(--tad-slate);
}

.text-content-transformed {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    line-height: 1.7;
    color: var(--tad-charcoal);
}

@keyframes fadeText {
    from {
        opacity: 0;
        transform: translateY(6px);
        filter: blur(2px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

/* ========== LOGO ========== */
.logo-container {
    margin-bottom: 20px;
    text-align: center;
}

.logo {
    width: 200px;
    height: auto;
    max-width: 90%;
}

.subtitle {
    color: var(--tad-silver);
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 20px;
    text-align: center;
}

/* ========== BETA BADGE ========== */
.beta-badge {
    display: inline-block;
    padding: 3px 10px;
    background: var(--tad-charcoal);
    color: #f3f4f6;
    font-size: 9px;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 4px;
    margin-top: -5px;
    margin-bottom: 25px;
    border: 1px solid var(--tad-steel);
    opacity: 0.8;
    transition: opacity var(--tad-transition-slow);
}

.beta-badge:hover {
    opacity: 1;
}

/* ========== BOUTON MICRO ========== */
.mic-button {
    width: 100px;
    height: 100px;
    border-radius: var(--tad-radius-full);
    background: linear-gradient(135deg, var(--tad-charcoal) 0%, var(--tad-steel) 100%);
    border: none;
    cursor: pointer;
    transition: all var(--tad-transition-slow);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 15px auto;
    position: relative;
    box-shadow: var(--tad-shadow-lg);
}

.mic-button:hover {
    transform: scale(1.05);
    box-shadow: var(--tad-shadow-xl);
}

.mic-button:focus {
    outline: 2px solid var(--tad-charcoal);
    outline-offset: 4px;
}

.mic-button.recording {
    background: linear-gradient(135deg, var(--tad-red) 0%, var(--tad-red-light) 100%);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4);
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(220, 38, 38, 0);
        transform: scale(1);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(220, 38, 38, 0);
    }
}

.mic-icon {
    width: 40px;
    height: 40px;
    fill: var(--tad-white);
}

/* ========== CONTROLE NIVEAU ========== */
.level-control {
    width: 100%;
    margin: 20px 0;
    padding: 15px;
    background: var(--tad-white);
    border-radius: 14px;
    border: 1px solid var(--tad-cloud);
}

.control-label {
    display: block;
    color: var(--tad-slate);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 12px;
    font-weight: 400;
    text-align: center;
}

.level-slider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.level-label {
    color: var(--tad-silver);
    font-size: 9px;
    font-weight: 400;
    min-width: 40px;
}

.slider {
    flex: 1;
    height: 8px;
    background: var(--tad-cloud);
    border-radius: 4px;
    position: relative;
    cursor: pointer;
    user-select: none;
}

.slider-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--tad-charcoal) 0%, var(--tad-slate) 100%);
    border-radius: 4px;
    width: 0%;
    transition: width var(--tad-transition-base);
}

.slider-handle {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(-50%, -50%);
    width: 28px;
    height: 28px;
    background: var(--tad-white);
    border: 3px solid var(--tad-charcoal);
    border-radius: var(--tad-radius-full);
    cursor: grab;
    transition: all var(--tad-transition-base);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.slider-handle:hover {
    transform: translate(-50%, -50%) scale(1.15);
}

.slider-handle.dragging {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.25);
}

.level-display {
    text-align: center;
    color: var(--tad-charcoal);
    font-size: 13px;
    font-weight: 600;
    margin-top: 6px;
}

/* ========== BOUTONS TONALITE ========== */
.tone-buttons {
    display: flex;
    gap: 6px;
    margin: 15px 0;
    flex-wrap: wrap;
    justify-content: center;
}

.tone-btn {
    padding: 10px 14px;
    min-height: 44px;
    background: var(--tad-white);
    border: 1px solid var(--tad-cloud);
    border-radius: var(--tad-radius-md);
    font-size: 12px;
    color: var(--tad-slate);
    cursor: pointer;
    transition: all var(--tad-transition-base);
    font-weight: 400;
    font-family: 'Inter', sans-serif;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tone-btn:hover {
    background: var(--tad-snow);
    border-color: var(--tad-silver);
}

.tone-btn:focus {
    outline: 2px solid var(--tad-charcoal);
    outline-offset: 2px;
}

.tone-btn.active {
    background: var(--tad-charcoal);
    color: var(--tad-white);
    border-color: var(--tad-charcoal);
}

/* Tooltips */
.tone-btn::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-5px);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--tad-charcoal);
    padding: 6px 12px;
    border-radius: var(--tad-radius-sm);
    border: 1px solid rgba(31, 41, 55, 0.1);
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--tad-transition-base), transform var(--tad-transition-base);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

.tone-btn:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(-8px);
}

.mail-icon {
    display: inline-block;
    width: 14px;
    height: 14px;
    vertical-align: middle;
    margin-right: 4px;
}

/* ========== COMPTEUR TRANSFORMATIONS ========== */
.transform-counter {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin: 15px 0;
}

.transform-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--tad-radius-full);
    background: var(--tad-cloud);
    transition: all var(--tad-transition-slow);
}

.transform-dot.used {
    background: var(--tad-charcoal);
}

.transform-text {
    font-size: 11px;
    color: var(--tad-silver);
    text-align: center;
    margin-top: 5px;
}

/* ========== STATUS & INSTRUCTIONS ========== */
.status {
    margin-top: 15px;
    font-size: 12px;
    color: var(--tad-silver);
    font-weight: 300;
    letter-spacing: 1px;
    text-align: center;
}

.instructions {
    margin-top: 20px;
    padding: 14px;
    background: var(--tad-white);
    border-radius: 10px;
    font-size: 11px;
    color: var(--tad-slate);
    text-align: center;
    border: 1px solid var(--tad-cloud);
}

.shortcut {
    display: inline-block;
    background: var(--tad-charcoal);
    color: var(--tad-white);
    padding: 3px 8px;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 10px;
    margin-top: 5px;
}

/* ========== LIVE DISPLAY ========== */
.live-display {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    animation: fadeIn var(--tad-transition-slow);
    padding: 20px;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.live-display.active {
    display: flex;
}

.live-words {
    font-size: 28px;
    font-weight: 300;
    color: var(--tad-charcoal);
    text-align: center;
    line-height: 1.5;
    max-width: 95%;
    word-wrap: break-word;
    margin-bottom: 30px;
}

.live-words .word {
    display: inline-block;
    margin: 0 6px 8px 6px;
    opacity: 0;
    animation: wordFadeIn 0.4s ease-out forwards;
}

@keyframes wordFadeIn {
    0% {
        opacity: 0;
        transform: translateY(10px);
        filter: blur(2px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

.mic-button-overlay {
    position: relative;
    z-index: 10000;
}

/* ========== LOADING INDICATOR ========== */
.loading-indicator {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: var(--tad-white);
    padding: 20px 30px;
    border-radius: var(--tad-radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    z-index: 10001;
    opacity: 0;
    transition: all var(--tad-transition-slow);
}

.loading-indicator.show {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.loading-text {
    color: var(--tad-charcoal);
    font-size: 14px;
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 12px;
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--tad-cloud);
    border-top-color: var(--tad-charcoal);
    border-radius: var(--tad-radius-full);
    animation: spin 0.8s linear infinite;
}

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

/* ========== MAIL POPUP ========== */
.mail-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 500px;
    max-width: 95%;
    background: var(--tad-white);
    border-radius: var(--tad-radius-xl);
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    opacity: 0;
    z-index: 10001;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.mail-popup.show {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.mail-header {
    font-size: 16px;
    font-weight: 600;
    color: var(--tad-charcoal);
    margin-bottom: 15px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.mail-subject {
    padding: 10px;
    background: var(--tad-snow);
    border-radius: var(--tad-radius-md);
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--tad-steel);
    border-left: 3px solid var(--tad-charcoal);
}

.mail-body {
    padding: 12px;
    background: var(--tad-snow);
    border-radius: var(--tad-radius-md);
    font-size: 13px;
    line-height: 1.6;
    color: var(--tad-steel);
    max-height: 250px;
    overflow-y: auto;
    white-space: pre-wrap;
}

.mail-actions {
    display: flex;
    gap: 8px;
    margin-top: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.mail-btn {
    padding: 12px 18px;
    min-height: 44px;
    border-radius: var(--tad-radius-md);
    border: none;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--tad-transition-base);
    font-family: 'Inter', sans-serif;
}

.mail-btn.copy {
    background: var(--tad-charcoal);
    color: var(--tad-white);
}

.mail-btn.copy:hover {
    background: var(--tad-steel);
}

.mail-btn.close {
    background: #f3f4f6;
    color: var(--tad-slate);
}

.mail-btn.close:hover {
    background: var(--tad-cloud);
}

/* ========== TOAST ========== */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--tad-charcoal);
    color: var(--tad-white);
    padding: 12px 24px;
    border-radius: var(--tad-radius-md);
    font-weight: 400;
    font-size: 13px;
    opacity: 0;
    transition: all var(--tad-transition-slow);
    z-index: 10002;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ========== TAMPON COPIE ========== */
.stamp-copied {
    position: absolute;
    bottom: 16px;
    right: 16px;
    width: 200px;
    height: 200px;
    opacity: 0;
    transform: rotate(-8deg) scale(0.9);
    pointer-events: none;
    will-change: transform, opacity;
}

.stamp-copied.show {
    animation: stampIn 0.8s ease-out forwards;
}

@keyframes stampIn {
    0% {
        transform: rotate(-15deg) scale(2.6);
        opacity: 0;
    }
    60% {
        transform: rotate(-12deg) scale(1.05);
        opacity: 0.92;
    }
    100% {
        transform: rotate(-8deg) scale(1.0);
        opacity: 0.85;
    }
}

.stamp-svg {
    width: 100%;
    height: 100%;
}

/* ========== FOOTER ========== */
.footer-polygon {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--tad-cloud);
    display: flex;
    flex-direction: column;
    gap: 6px;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 10px;
    color: var(--tad-slate);
    z-index: 100;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: center;
    flex-wrap: wrap;
}

.footer-center {
    text-align: center;
}

.footer-powered {
    font-weight: 600;
    color: var(--tad-charcoal) !important;
    text-decoration: none;
    transition: color var(--tad-transition-slow);
}

.footer-powered:hover {
    color: var(--tad-steel) !important;
    text-decoration: underline;
}

.footer-separator {
    color: #d1d5db;
    margin: 0 4px;
    display: inline;
}

.footer-legal {
    text-align: center;
    margin-top: 4px;
}

.footer-legal a {
    color: var(--tad-slate);
    text-decoration: none;
    transition: color var(--tad-transition-base);
}

.footer-legal a:hover {
    color: var(--tad-charcoal);
    text-decoration: underline;
}

.footer-subtitle {
    color: var(--tad-silver);
    font-style: italic;
}

.footer-right,
.footer-copyright {
    color: var(--tad-silver);
    font-size: 10px;
}

/* ========== SECTION HOW IT WORKS ========== */
#how-it-works {
    scroll-snap-align: start;
    scroll-margin-top: 20px;
}

.how-to-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 80px 30px;
    margin-bottom: 100px;
}

.how-to-container {
    max-width: 1200px;
    margin: 0 auto;
}

.how-to-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--tad-charcoal);
    margin-bottom: 20px;
}

.how-to-subtitle {
    text-align: center;
    color: var(--tad-slate);
    font-size: 16px;
    margin-bottom: 50px;
    font-weight: 300;
}

.how-to-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.step-card {
    background: var(--tad-white);
    padding: 30px;
    border-radius: var(--tad-radius-xl);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform var(--tad-transition-slow), box-shadow var(--tad-transition-slow);
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--tad-charcoal);
    color: var(--tad-white);
    border-radius: var(--tad-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 18px;
    font-weight: 700;
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--tad-charcoal);
    margin-bottom: 12px;
}

.step-desc {
    color: var(--tad-slate);
    font-size: 14px;
    line-height: 1.6;
}

/* ========== RESPONSIVE - MOBILE LANDSCAPE (481px+) ========== */
@media (min-width: 481px) {
    .main-container {
        padding: 25px 20px;
        padding-bottom: 80px;
    }

    .left-column,
    .right-column,
    .center-column {
        padding: 30px 25px;
    }

    .logo {
        width: 220px;
    }

    .mic-button {
        width: 110px;
        height: 110px;
    }

    .mic-icon {
        width: 44px;
        height: 44px;
    }

    .live-words {
        font-size: 32px;
    }
}

/* ========== RESPONSIVE - TABLET (768px+) ========== */
@media (min-width: 768px) {
    .main-container {
        flex-wrap: wrap;
        padding: 30px 40px;
        padding-bottom: 80px;
    }

    .center-column {
        width: 100%;
        order: -1;
        margin-bottom: 30px;
        padding: 0 30px;
    }

    .left-column,
    .right-column {
        width: calc(50% - 10px);
        padding: 35px 30px;
        border-radius: 18px;
    }

    .logo {
        width: 240px;
    }

    .mic-button {
        width: 120px;
        height: 120px;
    }

    .mic-icon {
        width: 46px;
        height: 46px;
    }

    .live-words {
        font-size: 36px;
    }

    .footer-polygon {
        padding: 12px 40px;
        flex-direction: row;
        justify-content: space-between;
        font-size: 10px;
    }

    .footer-separator {
        display: inline;
    }

    .footer-left {
        justify-content: flex-start;
    }

    .footer-copyright {
        position: static;
    }

    .how-to-title {
        font-size: 28px;
    }

    .how-to-steps {
        grid-template-columns: 1fr;
    }
}

/* ========== RESPONSIVE - DESKTOP (1280px+) ========== */
@media (min-width: 1280px) {
    .main-container {
        flex-direction: row;
        flex-wrap: nowrap;
        padding: 30px 60px;
        padding-bottom: 70px;
        max-width: 1600px;
        margin: 0 auto;
    }

    .center-column {
        width: 40%;
        order: 0;
        margin-bottom: 0;
        padding: 0 40px;
    }

    .left-column,
    .right-column {
        width: 30%;
        padding: 40px 30px;
        border-radius: var(--tad-radius-2xl);
    }

    .logo {
        width: 280px;
    }

    .logo-container {
        margin-bottom: 30px;
    }

    .subtitle {
        font-size: 12px;
        letter-spacing: 2px;
        margin-bottom: 30px;
    }

    .mic-button {
        width: 140px;
        height: 140px;
        margin: 20px auto;
    }

    .mic-icon {
        width: 50px;
        height: 50px;
    }

    .live-words {
        font-size: 42px;
        line-height: 1.6;
        margin-bottom: 40px;
    }

    .live-display {
        padding: 40px;
    }

    .column-title {
        font-size: 11px;
        margin-bottom: 20px;
    }

    .text-display {
        padding: 20px;
    }

    .text-content-verbatim {
        font-size: 14px;
        line-height: 1.6;
    }

    .text-content-transformed {
        font-size: 15px;
        line-height: 1.8;
    }

    .level-control {
        margin: 25px 0;
        padding: 20px;
        border-radius: var(--tad-radius-xl);
    }

    .control-label {
        font-size: 11px;
        letter-spacing: 1.5px;
        margin-bottom: 16px;
    }

    .level-slider {
        gap: 15px;
        margin-bottom: 10px;
    }

    .level-label {
        font-size: 10px;
        min-width: 45px;
    }

    .slider {
        height: 6px;
    }

    .slider-handle {
        width: 22px;
        height: 22px;
    }

    .level-display {
        font-size: 14px;
        margin-top: 8px;
    }

    .tone-buttons {
        gap: 8px;
        margin: 20px 0;
    }

    .tone-btn {
        padding: 8px 16px;
        min-height: auto;
    }

    .footer-polygon {
        padding: 15px 60px;
        font-size: 11px;
    }

    .footer-copyright {
        position: absolute;
        right: 60px;
    }

    .mail-popup {
        max-width: 90%;
        padding: 30px;
        border-radius: var(--tad-radius-2xl);
    }

    .mail-header {
        font-size: 18px;
        margin-bottom: 20px;
        gap: 10px;
    }

    .mail-subject {
        padding: 12px;
        margin-bottom: 15px;
        font-size: 14px;
    }

    .mail-body {
        padding: 15px;
        font-size: 14px;
        max-height: 300px;
    }

    .mail-actions {
        gap: 10px;
        margin-top: 20px;
    }

    .mail-btn {
        padding: 10px 20px;
        min-height: auto;
        font-size: 14px;
    }

    .how-to-steps {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========== PRINT ========== */
@media print {
    .footer-polygon,
    .mic-button,
    .level-control,
    .tone-buttons,
    .transform-counter,
    .live-display,
    .loading-indicator,
    .mail-popup,
    .toast {
        display: none !important;
    }

    .main-container {
        padding: 20px;
    }

    .left-column,
    .right-column {
        break-inside: avoid;
    }
}