/* Text-To-Speech - Light Theme Styles */

/* CSS Variables */
:root {
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --primary-light: #818cf8;
    --secondary: #764ba2;
    --success: #10b981;
    --success-dark: #059669;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-card: #ffffff;
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --transition: all 0.3s ease;
}

/* Reset */
* {
    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: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.brand-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Nav Menu - Mobile First */
.nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1rem 1.5rem;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: var(--shadow-lg);
}

.nav-menu.active,
.nav-menu.show {
    display: flex;
}

.nav-menu a {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--text-secondary);
    transition: var(--transition);
}

.nav-menu a:last-child {
    border-bottom: none;
}

.nav-menu a:hover {
    color: var(--primary);
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
        position: static;
        flex-direction: row;
        align-items: center;
        gap: 0.25rem;
        background: none;
        border: none;
        padding: 0;
        box-shadow: none;
    }
    
    .nav-menu a {
        padding: 0.5rem 0.75rem;
        border: none;
        border-radius: var(--radius-md);
    }
    
    .nav-menu a:hover {
        background: rgba(102, 126, 234, 0.1);
        color: var(--primary);
    }
}

/* Nav Toggle - Mobile Menu Button */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.mobile-menu.show {
    display: block;
}

.mobile-link {
    display: block;
    padding: 0.875rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.mobile-link:hover {
    color: var(--primary);
}

.mobile-lang-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.mobile-lang-link {
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.mobile-lang-link.active {
    background: var(--primary);
    color: white;
}

@media (min-width: 1024px) {
    .mobile-menu {
        display: none !important;
    }
}

/* Nav Language Switcher */
.nav-lang {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

@media (min-width: 1024px) {
    .nav-lang {
        margin-top: 0;
        margin-left: 0.75rem;
        padding-top: 0;
        border-top: none;
        padding-left: 0.75rem;
        border-left: 1px solid rgba(0, 0, 0, 0.05);
    }
}

.lang-btn {
    padding: 0.375rem 0.75rem;
    background: transparent;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.lang-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Language Dropdown */
.nav-lang-dropdown {
    position: relative;
    margin-left: 0.75rem;
}

@media (max-width: 1023px) {
    .nav-lang-dropdown {
        margin-top: 0.5rem;
        padding-top: 0.5rem;
        border-top: 1px solid rgba(0, 0, 0, 0.05);
    }
}

.nav-lang-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.nav-lang-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.nav-lang-btn svg {
    width: 18px;
    height: 18px;
}

.dropdown-arrow {
    transition: transform 0.2s;
}

.nav-lang-dropdown.open .dropdown-arrow {
    transform: rotate(180deg);
}

.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 160px;
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 100;
    overflow: hidden;
}

.nav-lang-dropdown.open .lang-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: var(--transition);
}

.lang-option:hover {
    background: rgba(102, 126, 234, 0.08);
    color: var(--primary);
}

.lang-option.active {
    background: rgba(102, 126, 234, 0.12);
    color: var(--primary);
    font-weight: 500;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn svg {
    width: 1.125rem;
    height: 1.125rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.45);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.btn-outline:disabled {
    border-color: #d1d5db;
    color: #9ca3af;
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1rem;
    border-radius: var(--radius-lg);
    letter-spacing: 0.02em;
}

/* Loading Spinner */
.loading-spinner {
    display: none;
    align-items: center;
    gap: 4px;
    margin-left: 8px;
}

.spinner-dot {
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
    animation: spinner-bounce 1.4s infinite ease-in-out both;
}

.spinner-dot:nth-child(1) {
    animation-delay: -0.32s;
}

.spinner-dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes spinner-bounce {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Button loading state */
.btn-primary.loading .loading-spinner {
    display: flex;
}

.btn-primary.loading {
    pointer-events: none;
}

.btn-primary.loading .btn-icon {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Hero Section */
.hero {
    position: relative;
    padding: 8rem 0 4rem;
    background: linear-gradient(180deg, #f0f4ff 0%, var(--bg-primary) 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(118, 75, 162, 0.08) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 1rem;
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 9999px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.badge-item svg {
    width: 1rem;
    height: 1rem;
    color: var(--primary);
}

.badge-divider {
    width: 1px;
    height: 1rem;
    background: rgba(0, 0, 0, 0.1);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 3.5rem;
    height: 3.5rem;
    background: rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon svg {
    width: 1.75rem;
    height: 1.75rem;
    color: var(--primary);
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Steps Section */
.steps {
    display: grid;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .steps {
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
    }
}

.step {
    position: relative;
    text-align: center;
}

.step-number {
    width: 3rem;
    height: 3rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin: 0 auto 1.5rem;
}

.step-content {
    padding: 0 0.5rem;
}

.step-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.step-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Use Cases Grid */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .use-cases-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.use-case-card {
    background: var(--bg-card);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

.use-case-card:hover {
    transform: translateY(-5px);
    border-color: var(--success);
    box-shadow: 0 10px 40px rgba(16, 185, 129, 0.1);
}

.use-case-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.use-case-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.use-case-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    width: 1.25rem;
    height: 1.25rem;
    transition: transform 0.3s ease;
    flex-shrink: 0;
    color: var(--text-muted);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* About Section */
.about-content {
    display: grid;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
}

.about-text .section-tag {
    display: inline-block;
}

.about-text .section-title {
    text-align: left;
}

.about-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1rem;
}

.about-features {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
}

.about-feature svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--success);
    flex-shrink: 0;
}

.about-domain {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 500;
}

.about-domain svg {
    width: 1.25rem;
    height: 1.25rem;
}

.about-domain a:hover {
    text-decoration: underline;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-card {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-card-icon {
    width: 4rem;
    height: 4rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.about-card-icon svg {
    width: 2rem;
    height: 2rem;
    color: white;
}

.about-card-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: white;
}

.about-card-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Workspace Section */
.section-workspace {
    padding-top: 6rem;
    background: linear-gradient(180deg, #f0f4ff 0%, #eef2ff 50%, #e0e7ff 100%);
    position: relative;
    overflow: hidden;
}

/* Decorative gradient orb */
.section-workspace::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.section-workspace::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(118, 75, 162, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.workspace-container {
    position: relative;
    z-index: 1;
}

.workspace-grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 1024px) {
    .workspace-grid {
        grid-template-columns: 1fr 380px;
        gap: 2rem;
    }
}

.workspace-main {
    display: grid;
    gap: 1.5rem;
}

.workspace-panel {
    background: var(--bg-card);
    border: 1px solid rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.08);
    transition: all 0.3s ease;
}

.workspace-panel:hover {
    border-color: rgba(102, 126, 234, 0.2);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.12);
}

/* Highlight panel header */
.workspace-panel-highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    color: white;
}

.workspace-panel-highlight .panel-title {
    color: white;
}

.workspace-panel-highlight .panel-title svg {
    color: rgba(255, 255, 255, 0.9);
}

.workspace-panel-highlight .style-select {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.workspace-panel-highlight .style-select option {
    background: white;
    color: var(--text-primary);
}

.workspace-panel-highlight .setting-row label {
    color: rgba(255, 255, 255, 0.9);
}

.workspace-panel-highlight .setting-row input[type="range"] {
    background: rgba(255, 255, 255, 0.3);
}

.workspace-panel-highlight .setting-row .setting-value {
    color: white;
}

.panel-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.panel-title svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--primary);
}

/* Text Input */
.text-input {
    width: 100%;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 2px solid rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-md);
    padding: 1rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    line-height: 1.6;
    resize: none;
    transition: all 0.3s ease;
    min-height: 150px;
}

.text-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15), 0 4px 15px rgba(102, 126, 234, 0.1);
    background: white;
}

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

.input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.char-count {
    color: var(--primary);
    font-weight: 600;
    background: rgba(102, 126, 234, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

/* Style Select Dropdown */
.style-select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 2px solid rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23667eea'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.25rem;
    padding-right: 2.5rem;
    transition: all 0.3s ease;
}

.style-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
}

.style-select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Setting Row */
.setting-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.5rem 0;
}

.setting-row label {
    flex-shrink: 0;
    width: 45px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.setting-row input[type="range"] {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    border-radius: 3px;
    cursor: pointer;
}

.setting-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
    transition: transform 0.2s ease;
}

.setting-row input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.setting-row .setting-value {
    flex-shrink: 0;
    width: 50px;
    text-align: right;
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 600;
    background: rgba(102, 126, 234, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

/* Workspace Actions Panel */
.workspace-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@media (min-width: 1024px) {
    .workspace-sidebar {
        position: sticky;
        top: 5rem;
        align-self: start;
    }
}

.workspace-actions {
    background: var(--bg-card);
    border: 1px solid rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.1);
}

/* Voice Filter Tabs */
.voice-filters {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.filter-tab {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-tab:hover {
    background: rgba(102, 126, 234, 0.05);
    border-color: rgba(102, 126, 234, 0.3);
    color: var(--primary);
}

.filter-tab.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* Language Tabs */
.language-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
}

.lang-tab {
    padding: 0.375rem 0.75rem;
    background: transparent;
    border: 1px solid rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-tab:hover {
    background: rgba(102, 126, 234, 0.05);
    border-color: rgba(102, 126, 234, 0.25);
}

.lang-tab.active {
    background: rgba(102, 126, 234, 0.15);
    border-color: var(--primary);
    color: var(--primary);
    font-weight: 500;
}

/* Voice Grid */
.voice-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    max-height: 280px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.voice-card {
    padding: 0.75rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
}

.voice-card:hover {
    background: rgba(102, 126, 234, 0.08);
    border-color: rgba(102, 126, 234, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.voice-card.selected {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.voice-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.voice-card .voice-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.voice-gender {
    font-size: 0.7rem;
    padding: 0.125rem 0.5rem;
    border-radius: 9999px;
    font-weight: 500;
}

.voice-gender.female {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.15) 0%, rgba(236, 72, 153, 0.1) 100%);
    color: #ec4899;
}

.voice-gender.male {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(59, 130, 246, 0.1) 100%);
    color: #3b82f6;
}

.voice-lang {
    font-size: 0.625rem;
    color: var(--text-muted);
}

/* Voice Selection */
.voice-selection {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(102, 126, 234, 0.1);
}

.selected-voice {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.selected-voice svg {
    width: 1rem;
    height: 1rem;
    color: var(--success);
}

.selected-voice strong {
    color: var(--primary);
    font-weight: 600;
}

.play-sample-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    background: rgba(102, 126, 234, 0.08);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-sample-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.play-sample-btn svg {
    width: 1rem;
    height: 1rem;
}

/* Status */
.status {
    margin-top: 1rem;
    text-align: center;
    font-size: 0.875rem;
    padding: 0.875rem;
    border-radius: var(--radius-md);
    display: none;
    font-weight: 500;
}

.status.show {
    display: block;
}

.status.info {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: var(--primary);
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.status.success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.1) 100%);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status.error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(239, 68, 68, 0.1) 100%);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Audio Player */
.audio-player {
    margin-top: 1.5rem;
    display: none;
}

.audio-player.show {
    display: block;
}

.audio-player-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.audio-player-header svg {
    width: 1rem;
    height: 1rem;
}

.audio-player-inner {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 1px solid rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.audio-play-btn {
    width: 3.5rem;
    height: 3.5rem;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.35);
    transition: all 0.3s ease;
}

.audio-play-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.45);
}

.audio-play-btn svg {
    width: 1.25rem;
    height: 1.25rem;
    color: white;
}

.audio-info {
    flex: 1;
}

.audio-progress {
    height: 0.5rem;
    background: rgba(0, 0, 0, 0.08);
    border-radius: 9999px;
    overflow: hidden;
}

.audio-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 9999px;
    width: 0%;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

.audio-time {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-domain {
    font-size: 0.875rem;
    color: var(--text-muted);
}

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

.footer-links {
    margin-top: 0.75rem;
}

.footer-links a {
    font-size: 0.8rem;
    color: var(--primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

.footer-links a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

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

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 3px;
}

/* Nav Link Active State */
.nav-link.active {
    color: var(--primary);
}

/* Utility */
.hidden {
    display: none !important;
}

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