/* ===================================
   Global Styles & CSS Reset
   =================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Mode Colors - Blue Theme (Truth, Trust, Stability, Wisdom) */
    --primary-color: #2563EB;
    --primary-hover: #1D4ED8;
    --primary-light: #DBEAFE;
    --primary-dark: #1E40AF;
    --secondary-color: #0EA5E9;
    --secondary-hover: #0284C7;
    --error-color: #EF4444;
    --error-light: #FEE2E2;
    --warning-color: #F59E0B;
    --warning-light: #FEF3C7;
    --success-color: #10B981;
    --success-light: #D1FAE5;

    /* Text Colors */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --text-inverse: #FFFFFF;

    /* Background Colors */
    --background-color: #F9FAFB;
    --background-secondary: #F3F4F6;
    --card-background: #FFFFFF;
    --input-background: #FFFFFF;
    --header-background: #FFFFFF;

    /* Border Colors */
    --border-color: #E5E7EB;
    --border-hover: #D1D5DB;
    --border-focus: #2563EB;

    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.08), 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.02);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    /* Dark Mode Colors - Blue Theme (Truth, Trust, Stability, Wisdom) */
    --primary-color: #3B82F6;
    --primary-hover: #60A5FA;
    --primary-light: #1E3A8A;
    --primary-dark: #2563EB;
    --secondary-color: #0EA5E9;
    --secondary-hover: #38BDF8;
    --error-color: #F87171;
    --error-light: #7F1D1D;
    --warning-color: #FBBF24;
    --warning-light: #78350F;
    --success-color: #34D399;
    --success-light: #064E3B;

    /* Text Colors */
    --text-primary: #F3F4F6;
    --text-secondary: #D1D5DB;
    --text-muted: #9CA3AF;
    --text-inverse: #1F2937;

    /* Background Colors */
    --background-color: #111827;
    --background-secondary: #1F2937;
    --card-background: #1F2937;
    --input-background: #374151;
    --header-background: #1F2937;

    /* Border Colors */
    --border-color: #374151;
    --border-hover: #4B5563;
    --border-focus: #818CF8;

    /* Shadows (adjusted for dark mode) */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4), 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Noto Sans', 'Noto Sans Sinhala', 'Noto Sans Tamil', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* ===================================
   Container & Layout
   =================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    width: 100%;
}

@media (min-width: 1024px) {
    .container {
        padding: var(--spacing-lg) var(--spacing-xl);
    }
}

/* ===================================
   Header Styles
   =================================== */

.header {
    position: relative;
    padding: 0;
    margin-bottom: var(--spacing-sm);
    min-height: 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Logo Styles */
.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: default;
    user-select: none;
    display: flex;
    align-items: center;
    transition: all var(--transition-base);
}

.logo-letter {
    font-weight: 700;
    font-size: 1.75rem;
}

.logo-text {
    font-weight: 400;
    max-width: 0;
    overflow: hidden;
    opacity: 0;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.logo:hover .logo-text {
    max-width: 200px;
    opacity: 1;
    margin-left: 0;
}

/* Guide Toggle Button */
.guide-toggle {
    background: var(--background-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
    color: var(--text-primary);
}

.guide-toggle:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.guide-toggle:active {
    transform: scale(0.95);
}

.guide-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-light);
}

.guide-toggle svg {
    width: 24px;
    height: 24px;
}

/* Language Toggle Button */
.language-toggle {
    background: var(--background-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
    color: var(--text-primary);
}

.language-toggle:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.language-toggle:active {
    transform: scale(0.95);
}

.language-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-light);
}

.language-toggle svg {
    width: 24px;
    height: 24px;
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--background-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-light);
}

.theme-icon {
    width: 24px;
    height: 24px;
    color: var(--text-primary);
    transition: all var(--transition-base);
    position: absolute;
}

.sun-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.moon-icon {
    opacity: 0;
    transform: rotate(90deg) scale(0);
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: rotate(-90deg) scale(0);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* Responsive header */
@media (max-width: 767px) {
    .header {
        padding: var(--spacing-xs) 0;
        margin-bottom: var(--spacing-sm);
    }

    .logo {
        font-size: 1.25rem;
    }

    .logo-letter {
        font-size: 1.5rem;
    }
}

/* ===================================
   Main Content Layout
   =================================== */

.main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Horizontal layout for medium and large screens */
@media (min-width: 768px) {
    .main-content {
        flex-direction: row;
        align-items: stretch;
        gap: var(--spacing-lg);
    }

    .input-section,
    .output-section {
        flex: 1;
        min-width: 0; /* Prevent flex items from overflowing */
    }
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: color var(--transition-base);
}

/* ===================================
   Input Section
   =================================== */

.input-section {
    background: var(--card-background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    border: 1px solid transparent;
}

/* Reduce padding on laptop screens for better space utilization */
@media (min-width: 1024px) {
    .input-section,
    .output-section {
        padding: var(--spacing-md);
    }
}

.input-section:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--border-hover);
}

/* Selection controls container */
.selection-controls {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

/* Three columns on larger screens to accommodate direction toggle */
@media (min-width: 1024px) {
    .selection-controls {
        grid-template-columns: 1fr 1fr 1fr;
        gap: var(--spacing-sm); /* Reduced gap for better space utilization */
        margin-bottom: var(--spacing-sm); /* Reduced margin for better space utilization */
    }
}

.selector-group {
    display: flex;
    flex-direction: column;
}

.selector-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-base);
}

.label-icon {
    font-size: 1rem;
}

.selector-dropdown {
    width: 100%;
    padding: 0.75rem var(--spacing-md);
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--input-background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    padding-right: 2.5rem;
    min-height: 48px;
}

.selector-dropdown:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.selector-dropdown:hover {
    border-color: var(--border-hover);
}

[data-theme="dark"] .selector-dropdown {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23D1D5DB' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

/* Direction Toggle Button */
.direction-toggle {
    width: 100%;
    padding: 0.75rem var(--spacing-md);
    font-size: 0.9375rem;
    font-family: inherit;
    font-weight: 600;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--background-secondary) 100%);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    min-height: 48px;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.direction-toggle:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.direction-toggle:active:not(:disabled) {
    transform: translateY(0);
}

.direction-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* Active state for reverse mode (English → Language) */
.direction-toggle.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    border-color: var(--primary-hover);
}

.direction-toggle.active:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-color) 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.direction-toggle:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--background-secondary);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.direction-text {
    font-weight: 600;
    transition: color var(--transition-base);
    white-space: nowrap;
}

.direction-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.direction-toggle:hover:not(:disabled) .direction-icon {
    transform: rotate(180deg);
}

/* Legacy support for old class names */
.language-selector {
    margin-bottom: var(--spacing-md);
}

.language-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.language-dropdown {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.input-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1rem;
    font-family: inherit;
    line-height: 1.6;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    resize: vertical;
    min-height: 200px;
    flex: 1;
    transition: all var(--transition-base);
    background-color: var(--input-background);
    color: var(--text-primary);
}

/* Adjust textarea height for larger screens */
@media (min-width: 768px) {
    .input-textarea {
        min-height: 180px;
        resize: none; /* Disable resize on horizontal layout */
    }
}

@media (min-width: 1024px) {
    .input-textarea {
        min-height: 200px; /* Reduced to ensure translate button is visible */
    }
}

@media (min-width: 1366px) {
    .input-textarea {
        min-height: 220px; /* Slightly larger for bigger screens */
    }
}

.input-textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.input-textarea:hover {
    border-color: var(--border-hover);
}

.input-textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.8;
}

.char-count {
    text-align: right;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    transition: color var(--transition-base);
}

/* Reduce char-count margin on laptop screens */
@media (min-width: 1024px) {
    .char-count {
        margin-top: 0.25rem;
        margin-bottom: var(--spacing-sm);
    }
}

/* ===================================
   Buttons
   =================================== */

.translate-btn {
    width: 100%;
    padding: 1rem var(--spacing-lg);
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-md);
    min-height: 56px;
}

.translate-btn:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-color) 100%);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.translate-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.translate-btn:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
    transform: none;
}

.btn-icon {
    font-size: 1.5rem;
    transition: transform 0.2s ease;
}

.translate-btn:hover .btn-icon {
    transform: translateX(4px);
}

/* ===================================
   Output Section
   =================================== */

.output-section {
    background: var(--card-background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    min-height: 400px;
    transition: all var(--transition-base);
    border: 1px solid transparent;
}

.output-section:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--border-hover);
}

@media (min-width: 768px) {
    .output-section {
        min-height: 600px;
        overflow-y: auto;
    }
}

/* Placeholder message */
.placeholder-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.4;
    transition: opacity var(--transition-base);
}

.placeholder-text {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    transition: color var(--transition-base);
}

.placeholder-subtext {
    font-size: 0.875rem;
    opacity: 0.7;
    transition: opacity var(--transition-base);
}

/* ===================================
   Loading Indicator
   =================================== */

.loading-indicator {
    text-align: center;
    padding: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
    transition: border-color var(--transition-base);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Error Message
   =================================== */

.error-message {
    background-color: var(--error-light);
    border: 2px solid var(--error-color);
    color: var(--error-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-base);
    animation: fadeIn 0.3s ease;
}

.error-icon {
    font-size: 1.5rem;
}

[data-theme="dark"] .error-message {
    color: #FCA5A5;
}

/* ===================================
   Results Section
   =================================== */

.results-section {
    animation: fadeIn 0.5s ease;
    flex: 1;
    display: flex;
    flex-direction: column;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.translation-card {
    background: var(--background-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-md);
    position: relative;
    transition: all var(--transition-base);
}

.translation-card:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--border-hover);
}

.main-translation {
    border-left: 4px solid var(--secondary-color);
    background: var(--card-background);
    box-shadow: var(--shadow-xs);
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: color var(--transition-base);
}

.title-icon {
    font-size: 1.5rem;
}

.translation-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    transition: color var(--transition-base);
    white-space: pre-line; /* Preserve newlines while allowing text wrapping */
}

.copy-btn {
    padding: 0.5rem var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-color);
    background-color: var(--primary-light);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 36px;
}

.copy-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.copy-btn:active {
    transform: translateY(0);
}

/* ===================================
   Alternatives Section
   =================================== */

.alternatives-container {
    background: var(--background-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-base);
}

.alternatives-container:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--border-hover);
}

.alternatives-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: color var(--transition-base);
}

.alternatives-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    transition: color var(--transition-base);
}

.alternatives-grid {
    display: grid;
    gap: var(--spacing-sm);
}

.alternative-btn {
    padding: var(--spacing-md);
    font-size: 1rem;
    text-align: left;
    color: var(--text-primary);
    background-color: var(--card-background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    min-height: 56px;
    display: flex;
    align-items: center;
    white-space: pre-line; /* Preserve newlines while allowing text wrapping */
}

.alternative-btn:hover {
    border-color: var(--primary-color);
    background-color: var(--primary-light);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.alternative-btn:active {
    transform: translateX(2px);
}

.alternative-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

/* ===================================
   Original Text Card
   =================================== */

.original-text-card {
    background: var(--background-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.original-text-card:hover {
    box-shadow: var(--shadow-xs);
    border-color: var(--border-hover);
}

.original-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--transition-base);
}

.original-text {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-style: italic;
    transition: color var(--transition-base);
    white-space: pre-line; /* Preserve newlines while allowing text wrapping */
}

.translate-another-btn {
    width: 100%;
    padding: 0.75rem var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    background-color: var(--card-background);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    margin-top: auto;
    min-height: 48px;
    margin-bottom: var(--spacing-md);
}

.translate-another-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.translate-another-btn:active {
    transform: translateY(0);
}

/* ===================================
   Toast Notification
   =================================== */

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: linear-gradient(135deg, var(--success-color) 0%, var(--secondary-hover) 100%);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: slideIn 0.3s ease;
    z-index: 1000;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===================================
   Footer
   =================================== */

.footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: auto;
    transition: color var(--transition-base);
}

/* ===================================
   Scrollbar Styling
   =================================== */

/* Light mode scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Dark mode scrollbar */
[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--background-secondary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--border-hover);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ===================================
   Language Selection Modal
   =================================== */

.language-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    animation: fadeIn var(--transition-base);
}

.language-modal-content {
    background: var(--card-background);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 400px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    animation: slideUp var(--transition-base);
}

.language-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.language-modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.language-modal-close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--text-secondary);
    transition: all var(--transition-base);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.language-modal-close:hover {
    background: var(--background-secondary);
    color: var(--text-primary);
}

.language-modal-close svg {
    width: 20px;
    height: 20px;
}

.language-modal-body {
    padding: var(--spacing-sm);
}

.language-option {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--background-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-xs);
    text-align: left;
}

.language-option:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.language-option.active {
    background: var(--primary-light);
    border-color: var(--primary-color);
}

.language-flag {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.language-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.language-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

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

.language-check {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.25rem;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.language-option.active .language-check {
    opacity: 1;
}

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

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ===================================
   Guide Modal
   =================================== */

.guide-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    animation: fadeIn var(--transition-base);
}

.guide-modal-content {
    background: var(--card-background);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp var(--transition-base);
}

.guide-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    background: var(--card-background);
    z-index: 10;
}

.guide-modal-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.guide-modal-close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--text-secondary);
    transition: all var(--transition-base);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.guide-modal-close:hover {
    background: var(--background-secondary);
    color: var(--text-primary);
}

.guide-modal-close svg {
    width: 20px;
    height: 20px;
}

.guide-modal-body {
    padding: var(--spacing-md);
}

.guide-step {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
}

.guide-step:last-child {
    margin-bottom: 0;
}

.step-number {
    background: var(--primary-color);
    color: var(--text-inverse);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.step-content p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ===================================
   Responsive Design
   =================================== */

/* Mobile-specific adjustments */
@media (max-width: 767px) {
    .container {
        padding: var(--spacing-sm);
    }

    .input-section,
    .output-section {
        padding: var(--spacing-md);
    }

    .translation-text {
        font-size: 1.125rem;
    }

    .toast {
        right: 1rem;
        left: 1rem;
        bottom: 1rem;
    }

    .section-title {
        font-size: 1.125rem;
    }

    .output-section {
        min-height: 300px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--spacing-xs) 0;
        margin-bottom: var(--spacing-sm);
    }

    .translate-btn {
        font-size: 1rem;
    }

    .language-dropdown {
        font-size: 0.875rem;
    }
}

/* Tablet and desktop adjustments */
@media (min-width: 768px) and (max-width: 1024px) {
    .container {
        max-width: 100%;
        padding: var(--spacing-md);
    }
}

/* Large desktop adjustments */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }
}