:root {
    /* Writon Dark Mode Website Colors */
    --bg-primary: #000000;
    --text-primary: #FFFFFF;
    --main-blue: #0A84FF;
    --glass-border: #2C2C2E;
    --system-green: #30D158;
    --system-red: #FF453A;

    /* Derived & Supporting Colors */
    --main-blue-hover: #3B9EFF; /* Lighter blue for hover */
    --main-blue-light: rgba(10, 132, 255, 0.1);
    --bg-secondary: #0A0A0A;
    --text-secondary: #B0B0B0;

    /* Component-Specific Aliases */
    --glass-background: #0A0A0A;
    --glass-background-hover: #1A1A1A;
    --glass-background-thick: #0A0A0A;
    --glass-background-sidebar: #0A0A0A;
    --glass-border-strong: #3A3A3C;
    --glass-separator: #2C2C2E;
    --text-tertiary: var(--text-secondary);
    --text-quaternary: var(--text-secondary);
    --text-blue: var(--main-blue);
    --text-link: var(--main-blue);
    --neutral-subtle: #0A0A0A;
    --neutral-emphasis: var(--text-primary);
    --system-orange: #FF9F0A;
    --system-yellow: #FFD60A;
    --system-purple: #BF5AF2;
    --system-cyan: #64D2FF;

    /* Spacing Grid */
    --space-0-5: 0.125rem;
    --space-1: 0.25rem;
    --space-1-5: 0.375rem;
    --space-2: 0.5rem;
    --space-2-5: 0.625rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Typography Scale - Optimized for readability across all screen sizes */
    --text-xs: clamp(0.75rem, 1.5vw + 0.5rem, 0.875rem);
    --text-sm: clamp(0.875rem, 1.5vw + 0.5rem, 1rem);
    --text-base: clamp(1rem, 1.5vw + 0.5rem, 1.125rem);
    --text-lg: clamp(1.125rem, 1.5vw + 0.5rem, 1.25rem);
    --text-xl: clamp(1.25rem, 1.5vw + 0.5rem, 1.5rem);
    --text-2xl: clamp(1.5rem, 2vw + 0.5rem, 1.75rem);
    --text-3xl: clamp(1.75rem, 2.5vw + 0.5rem, 2.25rem);
    --text-4xl: clamp(2rem, 3vw + 0.5rem, 2.75rem);
    --text-5xl: clamp(2.25rem, 3.5vw + 0.5rem, 3.25rem);
    --text-6xl: clamp(2.5rem, 4vw + 0.5rem, 3.75rem);


    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-3xl: 28px;

    /* Glass Blur Effects */
    --blur-glass: blur(20px);
    --blur-strong: blur(40px);
    --blur-heavy: blur(60px);

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-base: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-spring: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Dark mode specific styles */
.code-box.before {
    background: rgba(255, 69, 58, 0.1);
}

.code-box.after {
    background: rgba(48, 209, 88, 0.1);
}

.status-message.success, .status-message.error {
    color: var(--bg-primary);
}


/* Base styles and resets */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: var(--text-base);
    font-weight: 400;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Utility classes */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.hidden {
    display: none !important;
}

.glass-card {
    background: var(--glass-background);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2); /* Subtle depth */
}

.glass-button {
    background: var(--glass-background);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.glass-button:hover {
    background: var(--glass-background-hover);
}

/* Loading system */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.loading-overlay:not(.hidden) {
    opacity: 1;
}

.loading-spinner {
    background: var(--glass-background-thick);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-3xl);
    padding: var(--space-8);
    text-align: center;
    min-width: 300px;
    box-shadow: var(--shadow-xl);
}

.spinner-ring {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-4);
    border: 4px solid var(--glass-border-strong);
    border-top: 4px solid var(--main-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    will-change: transform;
}

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

.loading-text {
    font-size: var(--text-lg);
    font-weight: 590;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.loading-progress {
    width: 80%;
    margin: 0 auto;
    height: 6px;
    background: var(--glass-border-strong);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--main-blue), var(--main-blue-hover), var(--main-blue));
    background-size: 200% 100%;
    width: 0;
    border-radius: 3px;
    transition: width 0.1s linear;
    animation: shimmer 2s infinite;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--main-blue), var(--main-blue-hover));
    width: 0;
    border-radius: 3px;
    transition: width 0.3s ease-out;
}

/* Layout and core components */
#app-container {
    position: relative;
    z-index: 1;
}

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.85); /* --bg-secondary with opacity */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-primary);
    border-bottom: 1px solid var(--glass-border);
    text-align: center;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    width: 90%;
    margin: 0 auto;
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    color: var(--text-primary);
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: -0.05em;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.logo-image {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
}

.header .logo-text {
    display: none;
}

.nav-desktop {
    display: none;
    gap: var(--space-8);
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-base);
    transition: color var(--transition-base);
}

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

.nav-link i {
    margin-right: var(--space-2);
    color: var(--text-tertiary);
    transition: color var(--transition-base);
}

.nav-link:hover i {
    color: var(--text-primary);
}

.nav-mobile-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--text-xl);
    cursor: pointer;
    padding: var(--space-1);
    transition: transform var(--transition-base);
}

.nav-mobile-toggle:hover {
    opacity: 0.8;
}

.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    z-index: 1500;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    visibility: hidden;
    opacity: 0;
}

.mobile-nav-overlay:not(.hidden) {
    visibility: visible;
    opacity: 1;
}

.mobile-nav-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 80%;
    max-width: 350px;
    height: 100%;
    background: var(--glass-background-thick);
    border-left: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: var(--space-4);
    transition: opacity var(--transition-slow);
    opacity: 0;
}

.mobile-nav-overlay:not(.hidden) .mobile-nav-content {
    opacity: 1;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--glass-border-strong);
}

.mobile-nav-close {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--text-2xl);
    cursor: pointer;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding-top: var(--space-4);
    flex-grow: 1;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: var(--text-lg);
    font-weight: 500;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

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

.mobile-nav-footer {
    padding-top: var(--space-4);
    border-top: 1px solid var(--glass-border-strong);
}

.mobile-nav-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

.mobile-nav-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center; /* Center by default for mobile */
    min-height: 100vh;
    padding: 70px 0 var(--space-12);
    box-sizing: border-box;
    text-align: center; /* Center by default for mobile */
    color: var(--text-primary);
    overflow: hidden; /* Contain pseudo-elements */
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2;
}

.hero-background {
    position: absolute;
    inset: 0;
    background-image: url('assets/horizontal.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

@media (orientation: portrait) {
    .hero-background {
        background-image: url('assets/portrait.jpg');
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
    padding: 0 var(--space-6);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1-5) var(--space-3);
    background: var(--glass-background-hover);
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-2xl);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    margin-bottom: var(--space-6);
}

.hero-badge i {
    color: var(--main-blue);
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: 800; /* Bolder */
    line-height: 1.15;
    letter-spacing: -0.02em; /* Tighter spacing */
    margin-bottom: var(--space-6);
    color: var(--text-primary);
    text-shadow: 0 0 20px rgba(0,0,0,0.3); /* Add depth */
}

.hero-title .highlight {
    color: var(--main-blue);
    background: none;
    -webkit-text-fill-color: var(--main-blue);
}

.hero-title span:last-child {
    display: block; /* Put second part on new line */
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-10); /* Increase bottom margin */
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4); /* Increased gap */
    width: 100%;
    margin: 0 auto;
}

.hero-actions .btn-primary,
.hero-actions .btn-secondary {
    width: 100%;
    max-width: 320px;
    height: 48px; /* Larger buttons */
    justify-content: center;
    flex-shrink: 0;
    font-size: var(--text-base);
    padding: var(--space-3) var(--space-6);
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 2x2 grid on mobile */
    gap: 1px; /* Creates the divider lines */
    margin-top: var(--space-12);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    background-color: var(--glass-border); /* The color of the dividers */
    overflow: hidden; /* Keeps the children within the rounded border */
}

.feature-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    transition: all var(--transition-base);
    text-align: center;
}

.feature-item i {
    font-size: var(--text-xs);
    color: var(--main-blue);
    flex-shrink: 0; /* Prevents icon from shrinking */
    transition: transform var(--transition-base);
}

.features {
    padding: var(--space-20) 0;
}

/* Button system */
.btn-primary,
.btn-secondary {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-weight: 600;
    border-radius: var(--radius-lg);
    padding: var(--space-2) var(--space-4);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
    font-size: inherit;
    line-height: 1;
    border: none;
    outline: none;
    box-sizing: border-box;
}

.btn-primary {
    background: var(--main-blue);
    color: #FFFFFF;
    border: 1px solid var(--main-blue);
}

.btn-primary:hover {
    background: var(--main-blue-hover);
    border-color: var(--main-blue-hover);
}

.btn-primary:active {
    opacity: 0.9;
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary.success {
    background: var(--system-green);
    border-color: var(--system-green);
    animation: bounce 0.6s ease-in-out;
}

.btn-secondary {
    background: var(--neutral-subtle);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--glass-background-hover);
    border-color: var(--glass-border-strong);
}

.btn-large {
    font-size: var(--text-lg);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-xl);
    height: 48px;
    width: 200px;
    text-align: center;
}

/* Feature card styling */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.feature-card {
    background: var(--glass-background);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2); /* Subtle depth */
    transition: all var(--transition-spring);
    cursor: pointer;
}

.feature-card:hover {
    background: var(--glass-background-hover);
    border-color: var(--glass-border-strong);
}

.feature-card:active {
    opacity: 0.9;
}

.feature-card.selected {
    border-color: var(--main-blue);
    background: var(--main-blue-light);
    animation: fadeInUp 0.6s ease-out;
}

.feature-card.squashed {
    transform: rotateX(75deg) scaleY(0) scaleX(0.9);
    opacity: 0.2;
    box-shadow: none;
    pointer-events: none;
}

.setting-input,
.editor-textarea {
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.setting-input {
    width: 100%;
    padding: var(--space-3);
    font-size: var(--text-base);
    line-height: 1.5;
    background: var(--glass-background-hover);
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
}

.editor-textarea {
    flex-grow: 1;
    min-height: 250px;
    background: var(--glass-background);
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    resize: vertical;
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-primary);
    font-family: inherit;
}

.setting-input:focus,
.editor-textarea:focus {
    outline: none;
    border-color: var(--main-blue);
    box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.1);
    transition: all var(--transition-base);
}

.setting-input:focus::placeholder,
.editor-textarea:focus::placeholder {
    color: var(--text-tertiary);
    opacity: 0.7;
}

.setting-input.error,
.editor-textarea.error {
    border-color: var(--system-red);
    box-shadow: 0 0 0 3px rgba(255, 69, 58, 0.1);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    text-align: center;
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-bottom: var(--space-12);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-background-hover);
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-lg);
    margin: 0 auto var(--space-4);
    color: var(--main-blue);
    font-size: var(--text-3xl);
}

.feature-title {
    font-size: var(--text-xl);
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--space-2);
}

.feature-description {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.code-example-stacked {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.example-section {
    text-align: center;
}

.example-label {
    display: block;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--text-tertiary);
    margin-bottom: var(--space-1);
    letter-spacing: 0.1em;
    text-align: center;
}

.code-box {
    background: var(--glass-background-hover);
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-md);
    padding: var(--space-2);
    font-family: monospace;
    font-size: var(--text-sm);
}

.code-box.before {
    border-color: var(--system-red);
    color: var(--system-red);
    background: rgba(255, 69, 58, 0.1);
}

.code-box.after {
    border-color: var(--system-green);
    color: var(--system-green);
    background: rgba(48, 209, 88, 0.1);
}

.feature-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

.stat {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.stat-text {
    display: flex;
    align-items: center;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.stat-text span {
    font-weight: 600;
}

.processing-section {
    padding: var(--space-20) 0;
}

.processor-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.settings-panel {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    position: relative;
    z-index: 20;
}

.settings-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.api-key-group {
    position: relative;
}

.api-key-input-wrapper {
    display: flex;
    align-items: center;
    position: relative;
}

.api-key-input-wrapper .setting-input {
    flex-grow: 1;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-action-btn {
    background: var(--glass-background-hover);
    border: 1px solid var(--glass-border-strong);
    border-left: none;
    color: var(--text-secondary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    cursor: pointer;
    transition: color var(--transition-base);
    align-self: stretch;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
}


.api-key-input-wrapper .input-action-btn:hover {
    color: var(--text-primary);
}

.settings-divider {
    border: none;
    height: 1px;
    background: var(--glass-separator);
    margin: var(--space-4) 0;
}

.editor-panel {
    display: flex;
    flex-direction: column;
    padding: var(--space-6);
    position: relative;
    z-index: 10;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.editor-title {
    font-size: var(--text-xl);
    font-weight: 600;
}

.editor-actions {
    display: flex;
    gap: var(--space-2);
}

.editor-action-btn {
    background: var(--glass-background-hover);
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

/* Make label-based action (Upload) render exactly like buttons */
label.editor-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    gap: var(--space-1);
}

.editor-action-btn:hover {
    color: var(--text-primary);
    background: var(--main-blue-light);
    border-color: var(--main-blue);
}

.editor-action-btn i {
    margin-right: var(--space-1);
}

.editor-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-4);
}

.text-stats {
    display: flex;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.stat-item {
    font-weight: 500;
}

.btn-process {
    padding: var(--space-3) var(--space-6);
}

.results-section {
    margin-top: var(--space-6);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.original-text-panel,
.processed-text-panel {
    padding: var(--space-6);
}

.result-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.result-title {
    font-size: var(--text-xl);
    font-weight: 600;
}

.result-stats {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-4);
}

.result-text-box {
    min-height: 150px;
    background: var(--glass-background);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-secondary);
    white-space: pre-wrap;
    overflow-y: auto;
    font-family: inherit;
}

.result-actions {
    margin-top: var(--space-4);
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.status-header {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--glass-separator);
}

.api-status {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-tertiary);
    position: relative;
}

.status-indicator.connected {
    background: var(--system-green);
}

.status-indicator.error {
    background: var(--system-red);
}

.status-indicator.checking {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(48, 209, 88, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(48, 209, 88, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(48, 209, 88, 0);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

.status-text {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.status-text.connected {
    color: var(--system-green);
}

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

.status-text.checking {
    color: var(--text-secondary);
}

.key-link {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.key-link:hover {
    color: var(--main-blue);
}

.status-message {
    position: fixed;
    top: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-2xl);
    font-size: var(--text-base);
    font-weight: 500;
    z-index: 3000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    opacity: 1;
    transition: opacity var(--transition-fast);
    max-width: 90%;
    box-sizing: border-box;
    text-align: center;
}

.status-message.info {
    background: var(--glass-background);
    color: var(--text-primary);
    border: 1px solid var(--glass-border-strong);
}

.status-message.success {
    background: var(--system-green);
    color: white;
    border: 1px solid var(--system-green);
}

.status-message.error {
    background: var(--system-red);
    color: white;
    border: 1px solid var(--system-red);
}

/* Footer */
.footer {
    position: relative;
    overflow: hidden;
    background: var(--bg-secondary);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    padding: var(--space-6) 0;
    border-top: 1px solid var(--glass-border);
    font-size: var(--text-sm);
}

.footer::before {
    content: '';
    display: none;
}

.footer-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: var(--space-4);
}

.footer-left p {
    color: var(--text-secondary);
}

.footer-right {
    display: flex;
    gap: var(--space-6);
    color: var(--text-tertiary);
    align-items: center;
}


/* Custom select dropdown styling */
.custom-select-wrapper {
    position: relative;
    width: 100%;
}

.custom-select-wrapper select {
    display: none;
}

.custom-select {
    position: relative;
}

.select-selected {
    background: var(--glass-background-hover);
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    font-size: var(--text-base);
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
    transition: all var(--transition-base);
}

.select-selected:hover {
    border-color: var(--glass-border);
}

.select-selected::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    transition: transform var(--transition-fast);
}

.select-selected.select-arrow-active::after {
    transform: translateY(-50%) rotate(180deg);
}

.select-items {
    position: absolute;
    background: var(--glass-background-thick);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
    top: calc(100% + var(--space-2));
    left: 0;
    right: 0;
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-md);
    z-index: 1100;
    max-height: 200px;
    overflow-y: auto;
}

.select-items div {
    padding: var(--space-3);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    color: var(--text-secondary);
}

.select-items div:hover {
    background-color: var(--main-blue-light);
    color: var(--text-primary);
}

.select-items.select-up {
    top: auto;
    bottom: calc(100% + var(--space-2));
}

.mobile-fab {
    display: none; 
}


/* Enhanced Typography for Better Readability */
@media (max-width: 480px) {
    :root {
        /* Mobile-first: Ensure minimum readable sizes */
        --text-xs: 0.75rem;
        --text-sm: 0.875rem;
        --text-base: 1rem;
        --text-lg: 1.125rem;
        --text-xl: 1.25rem;
        --text-2xl: 1.5rem;
        --text-3xl: 1.75rem;
        --text-4xl: 2rem;
        --text-5xl: 2.25rem;
        --text-6xl: 2.5rem;
    }
}

@media (min-width: 481px) and (max-width: 767px) {
    :root {
        /* Tablet portrait: Slightly larger for better readability */
        --text-xs: 0.8rem;
        --text-sm: 0.9rem;
        --text-base: 1.05rem;
        --text-lg: 1.15rem;
        --text-xl: 1.3rem;
        --text-2xl: 1.6rem;
        --text-3xl: 1.9rem;
        --text-4xl: 2.2rem;
        --text-5xl: 2.5rem;
        --text-6xl: 2.8rem;
    }
}

@media (min-width: 768px) and (max-width: 1024px) {
    :root {
        /* Tablet landscape / Small desktop: Balanced scaling */
        --text-xs: 0.85rem;
        --text-sm: 0.95rem;
        --text-base: 1.1rem;
        --text-lg: 1.2rem;
        --text-xl: 1.4rem;
        --text-2xl: 1.7rem;
        --text-3xl: 2rem;
        --text-4xl: 2.4rem;
        --text-5xl: 2.8rem;
        --text-6xl: 3.2rem;
    }
}

@media (min-width: 1025px) and (max-width: 1440px) {
    :root {
        /* Desktop: Optimal reading sizes */
        --text-xs: 0.875rem;
        --text-sm: 1rem;
        --text-base: 1.125rem;
        --text-lg: 1.25rem;
        --text-xl: 1.5rem;
        --text-2xl: 1.75rem;
        --text-3xl: 2.25rem;
        --text-4xl: 2.75rem;
        --text-5xl: 3.25rem;
        --text-6xl: 3.75rem;
    }
}

@media (min-width: 1441px) {
    :root {
        /* Large screens: Prevent text from becoming too large */
        --text-xs: 0.875rem;
        --text-sm: 1rem;
        --text-base: 1.125rem;
        --text-lg: 1.25rem;
        --text-xl: 1.5rem;
        --text-2xl: 1.75rem;
        --text-3xl: 2.25rem;
        --text-4xl: 2.75rem;
        --text-5xl: 3.25rem;
        --text-6xl: 3.75rem;
    }
}

/* Media queries for responsiveness */
@media (max-width: 767px) {
    /* Stack title above action buttons and center them on mobile */
    .editor-header {
        flex-direction: column;
        align-items: center;
        gap: var(--space-3);
    }

    .editor-title {
        text-align: center;
        width: 100%;
    }

    .editor-actions {
        justify-content: center;
        flex-wrap: wrap;
    }

    .editor-footer {
        flex-direction: column;
        gap: var(--space-4);
        align-items: stretch;
    }

    .text-stats {
        justify-content: center;
        text-align: center;
        flex-wrap: wrap;
        gap: var(--space-2) var(--space-3);
    }

    .btn-process {
        padding: var(--space-3) var(--space-4);
    }

    .result-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .result-stats {
        justify-content: center;
    }

    

    

    
    /* Ensure action buttons (including label-based Upload) look identical on mobile */
    .editor-action-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        line-height: 1;
        gap: var(--space-1);
    }
     .mobile-fab {
        display: block;
        position: fixed;
        bottom: var(--space-6);
        right: var(--space-6);
        z-index: 1100;
    }

    .fab-main {
        background: var(--main-blue);
        color: var(--text-primary);
        border: none;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: var(--text-2xl);
        cursor: pointer;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        transition: transform var(--transition-base);
    }

    .fab-main:hover {
        transform: scale(1.1);
    }
    .processor-grid .settings-panel {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        max-height: 90vh;
        z-index: 1200;
        background: var(--glass-background-thick);
        border-top: 1px solid var(--glass-border-strong);
        border-radius: var(--radius-3xl) var(--radius-3xl) 0 0;
        transform: translateY(100%);
        visibility: hidden;
        transition: transform var(--transition-slow), visibility var(--transition-slow);
        overflow-y: auto;
        padding-top: var(--space-8);
    }
    .processor-grid .settings-panel.visible {
        transform: translateY(0);
        visibility: visible;
    }
}

@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
    }

    .header .logo-text {
        display: inline;
    }

    .nav-mobile-toggle {
        display: none;
    }

    .hero {
        justify-content: center; /* Center on desktop */
        text-align: center; /* Center on desktop */
        padding: 0 var(--space-12);
    }

    .hero-content {
        padding: 0;
        max-width: 700px;
    }
    
    .hero-title span:last-child {
        display: inline; /* Keep on same line for desktop */
    }

    .hero-description {
        margin: 0 auto var(--space-10);
    }

    .hero-actions {
        flex-direction: row;
        justify-content: center; /* Center buttons */
        margin-left: 0;
        margin-right: 0;
    }
    
    .hero-actions .btn-primary,
    .hero-actions .btn-secondary {
        width: auto;
        min-width: 180px; /* Slightly larger buttons */
    }
    
    .hero-features {
        grid-template-columns: repeat(4, 1fr); /* 4x1 grid on desktop */
        max-width: 100%;
        margin-left: 0;
        margin-right: 0;
        gap: 1px; /* Keep the divider */
    }
    
    .feature-item {
        justify-content: flex-start; /* Left-align content on desktop */
        text-align: left;
        padding: var(--space-3) var(--space-4); /* Adjust padding for desktop */
    }

    .processor-grid,
    .features-grid {
        grid-template-columns: 320px 1fr;
        gap: var(--space-8);
    }

    .results-section {
        grid-template-columns: 1fr;
    }

    .result-header {
        flex-direction: row;
        align-items: center;
    }

    .result-actions {
        justify-content: flex-end;
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .features-grid {
        grid-template-columns: 1fr 1fr;
    }
    .processor-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    .processor-grid {
        grid-template-columns: 320px 1fr;
    }
    .results-section {
        grid-template-columns: 1fr 2fr;
        gap: var(--space-8);
    }
}