/* Text Image Generator - Main Styles */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700&display=swap');

:root {
    --rotate: 132deg;
    --container-height: 100px;
    --container-width: 600px;
    
    /* Theme colors */
    --primary-color: #61dafb;
    --secondary-color: #f1dafb;
    --accent-color: #294699;
    --background-dark: #000000;
    --background-gradient: linear-gradient(-45deg, #000000, #424571, #211367, #21131F);
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --border-color: #3a3a3a;
    --input-bg: #2c2c2c;
    --input-focus-bg: #0A0108;
    --container-bg: rgba(0, 0, 0, 0.5);
    --glass-bg: rgba(0, 0, 0, 0.7);
    --glass-border: rgba(241, 218, 251, 0.7);
    
    /* Spacing */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 20px;
    --spacing-lg: 30px;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 10px;
    --radius-lg: 50%;
    
    /* Transitions */
    --transition-fast: 0.1s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;
    
    /* Shadows */
    --glow-shadow: 0 0 10px var(--secondary-color), 0 0 20px var(--secondary-color), 0 0 30px var(--secondary-color);
    --focus-shadow: 0 0 0 3px rgba(97, 218, 251, 0.2);
    --inset-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
}

/* Dark/Light theme support */
[data-theme="light"] {
    --background-dark: #ffffff;
    --background-gradient: linear-gradient(-45deg, #f0f0f0, #e0e0e0, #d0d0d0, #c0c0c0);
    --text-primary: #333333;
    --text-secondary: #666666;
    --container-bg: rgba(255, 255, 255, 0.8);
    --glass-bg: rgba(255, 255, 255, 0.9);
    --input-bg: #f5f5f5;
    --input-focus-bg: #ffffff;
    --border-color: #cccccc;
}

/* Reset and base styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Orbitron', sans-serif;
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: var(--spacing-md);
    text-align: center;
    background: var(--background-gradient);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    transition: background var(--transition-normal), color var(--transition-normal);
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Main container */
.content-wrapper {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.container {
    max-width: 600px;
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--container-bg);
    border-radius: var(--radius-md);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp var(--transition-slow) forwards;
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

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

/* Typography */
h1, h2 {
    text-transform: uppercase;
    letter-spacing: 3px;
    text-shadow: var(--glow-shadow);
    margin: 0;
}

h1 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    font-weight: bold;
    animation: flicker 3s infinite;
}

h2 {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    opacity: 0.9;
}

@keyframes flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* Form controls */
.control-group {
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.control-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#textInput {
    width: 100%;
    height: 100px;
    padding: var(--spacing-sm);
    font-size: 16px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    outline: none;
    transition: border var(--transition-normal), box-shadow var(--transition-normal), 
                background-color var(--transition-normal), color var(--transition-normal);
    box-shadow: var(--inset-shadow);
    resize: vertical;
    min-height: 60px;
    font-family: inherit;
}

#textInput:focus {
    border-color: var(--accent-color);
    background-color: var(--input-focus-bg);
    color: var(--text-secondary);
    box-shadow: var(--focus-shadow), var(--inset-shadow);
}

#textInput::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

/* Slider controls */
.slider-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp var(--transition-slow) 0.3s forwards;
}

.slider-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    transition: background var(--transition-normal);
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-fast);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

/* Font selector */
.font-selector-container {
    max-width: 600px;
    width: 100%;
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    background-color: var(--glass-bg);
    border-radius: var(--radius-md);
    backdrop-filter: blur(5px);
    border: 1px solid var(--glass-border);
    text-align: center;
    animation: fadeInUp var(--transition-slow) forwards;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.font-selector-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.font-selector {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: 16px;
    border-radius: var(--spacing-xs);
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--text-primary);
    outline: none;
    transition: border var(--transition-normal), box-shadow var(--transition-normal), 
                background-color var(--transition-normal), color var(--transition-normal);
    cursor: pointer;
}

.font-selector:hover {
    border-color: var(--accent-color);
    background-color: var(--input-focus-bg);
}

.font-selector:focus {
    border-color: var(--accent-color);
    background-color: var(--input-focus-bg);
    color: var(--text-secondary);
    box-shadow: var(--focus-shadow);
}

/* Canvas container */
.canvas-container {
    width: 100%;
    max-width: 500px;
    height: 150px;
    overflow: hidden;
    margin: var(--spacing-md) auto;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--input-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    position: relative;
}

.canvas-container::before {
    content: 'Preview will appear here';
    position: absolute;
    color: var(--text-secondary);
    opacity: 0.5;
    font-size: 0.9rem;
    pointer-events: none;
    z-index: 1;
}

.canvas-container canvas {
    border-radius: var(--radius-sm);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp var(--transition-slow) 0.6s forwards;
    position: relative;
    z-index: 2;
}

.canvas-container canvas:not(:empty) + .canvas-container::before {
    display: none;
}

/* Buttons */
.button-group {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.export-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp var(--transition-slow) 0.9s forwards;
    outline: none;
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 80px;
    justify-content: center;
}

.export-btn.primary {
    background: var(--primary-color);
    color: #000;
    border-color: var(--primary-color);
}

.export-btn.secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.export-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.export-btn.primary:hover {
    background: #4fb3d4;
    box-shadow: 0 4px 12px rgba(97, 218, 251, 0.4);
}

.export-btn.secondary:hover {
    background: var(--accent-color);
    color: var(--text-primary);
    border-color: var(--accent-color);
}

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

.export-btn svg {
    transition: transform var(--transition-normal);
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.export-btn:hover svg {
    transform: scale(1.1);
}

.export-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button {
    background-color: transparent;
    border: none;
    cursor: pointer;
    border-radius: var(--radius-lg);
    transition: transform var(--transition-fast);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp var(--transition-slow) 0.9s forwards;
    outline: none;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

button:hover {
    transform: translateY(-2px);
}

button:active {
    transform: translateY(1px);
}

button svg {
    transition: transform var(--transition-normal);
    width: 45px;
    height: 45px;
}

button:hover svg {
    transform: scale(1.1);
}

button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Theme toggle button */
.theme-toggle {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 50px;
    height: 50px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    animation: fadeInUp var(--transition-slow) 1.2s forwards;
    z-index: 1000;
}

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

/* Loading states */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Error states */
.error {
    border-color: #ff6b6b !important;
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.2) !important;
}

.error-message {
    color: #ff6b6b;
    font-size: 0.8rem;
    margin-top: var(--spacing-xs);
    text-align: left;
}

/* Success states */
.success {
    border-color: #51cf66 !important;
    box-shadow: 0 0 0 3px rgba(81, 207, 102, 0.2) !important;
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-sm);
    }
    
    .container {
        padding: var(--spacing-sm);
    }
    
    .font-selector-container {
        padding: var(--spacing-sm);
    }
    
    .canvas-container {
        height: 120px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.2rem;
    }
    
    .theme-toggle {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        width: 40px;
        height: 40px;
    }
    
    .theme-toggle svg {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 480px) {
    .content-wrapper {
        gap: var(--spacing-sm);
    }
    
    .canvas-container {
        height: 100px;
    }
    
    #textInput {
        height: 80px;
        font-size: 14px;
    }
    
    .font-selector {
        font-size: 14px;
    }
}

/* Print styles */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .theme-toggle {
        display: none;
    }
    
    .canvas-container canvas {
        border: 1px solid #ccc;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-primary: #ffffff;
        --background-dark: #000000;
    }
    
    [data-theme="light"] {
        --border-color: #000000;
        --text-primary: #000000;
        --background-dark: #ffffff;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .gradient {
        animation: none;
    }
}

/* PWA Install Prompt */
.install-prompt {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    max-width: 400px;
    margin: 0 auto;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    z-index: 10000;
    opacity: 0;
    transform: translateY(100%);
    transition: all var(--transition-normal) ease;
}

.install-prompt[style*="block"] {
    opacity: 1;
    transform: translateY(0);
}

.install-content {
    padding: var(--spacing-md);
    text-align: center;
}

.install-content h3 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.install-content p {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.install-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.install-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--primary-color);
    border-radius: var(--spacing-xs);
    background: var(--primary-color);
    color: #000;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.install-btn.secondary {
    background: transparent;
    color: var(--primary-color);
}

.install-btn:hover {
    transform: translateY(-1px);
}

.install-btn.secondary:hover {
    background: rgba(97, 218, 251, 0.1);
}

/* Screen reader only content */
.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;
}

/* Toast messages */
.toast-message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    z-index: 10000;
    max-width: 300px;
    word-wrap: break-word;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.toast-info {
    background-color: #339af0;
}

.toast-error {
    background-color: #ff6b6b;
}

.toast-success {
    background-color: #51cf66;
}

/* Focus management */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip links for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: #000;
    padding: 8px;
    border-radius: 4px;
    text-decoration: none;
    z-index: 10001;
    font-weight: 600;
}

.skip-link:focus {
    top: 6px;
}

/* Color scheme preferences */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
    }
}

@media (prefers-color-scheme: light) {
    :root {
        color-scheme: light;
    }
}

/* Animation for canvas appearance */
@keyframes canvasAppear {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.canvas-container canvas[width]:not([width="400"]) {
    animation: canvasAppear 0.3s ease-out;
}

/* Flicker animation fix */
@keyframes flicker {
    0%, 100% { 
        opacity: 1; 
        text-shadow: var(--glow-shadow);
    }
    50% { 
        opacity: 0.9; 
        text-shadow: 0 0 5px var(--secondary-color), 0 0 10px var(--secondary-color), 0 0 15px var(--secondary-color);
    }
}