/* Flag Generator - Mobile First Styles */

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #0f3460;
    --accent: #e94560;
    --accent-hover: #ff6b6b;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --border: #2a2a4a;
    --success: #2ecc71;
    --transition-speed: 0.2s;
}

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

html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    line-height: 1.5;
}

.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header */
.header {
    padding: 16px 0;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Main Content */
.main {
    flex: 1;
    padding: 16px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Canvas Preview */
.preview-section {
    width: 100%;
}

.canvas-container {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

#flagCanvas {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* Controls */
.controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.control-group {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 16px;
}

.control-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Layout Grid */
.layout-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
}

.layout-btn {
    aspect-ratio: 3/2;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    padding: 4px;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

.layout-btn svg {
    width: 100%;
    height: 100%;
    border-radius: 4px;
}

.layout-btn:hover,
.layout-btn:focus {
    border-color: var(--accent);
    transform: scale(1.05);
}

.layout-btn.active {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent);
}

/* Color Pickers */
.color-pickers {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.color-picker-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.color-picker-item label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.color-picker-item input[type="color"] {
    width: 56px;
    height: 56px;
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    background: transparent;
    padding: 4px;
    -webkit-appearance: none;
    appearance: none;
}

.color-picker-item input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker-item input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.color-picker-item input[type="color"]::-moz-color-swatch {
    border: none;
    border-radius: 4px;
}

/* Symbol Grid */
.symbol-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.symbol-btn {
    min-height: 48px;
    font-size: 1.5rem;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-primary);
    transition: all var(--transition-speed);
    -webkit-tap-highlight-color: transparent;
}

.symbol-btn:hover,
.symbol-btn:focus {
    border-color: var(--accent);
    transform: scale(1.05);
}

.symbol-btn.active {
    border-color: var(--accent);
    background: var(--accent);
}

.symbol-color-picker {
    margin-top: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.symbol-color-picker label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.symbol-color-picker input[type="color"] {
    width: 48px;
    height: 48px;
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    background: transparent;
    padding: 4px;
    -webkit-appearance: none;
    appearance: none;
}

.symbol-color-picker input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.symbol-color-picker input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

/* Download Group */
.download-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Buttons */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 52px;
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-icon {
    font-size: 1.25rem;
}

.btn-primary {
    background: var(--accent);
    color: var(--text-primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.4);
}

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

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--border);
}

.btn-secondary:hover,
.btn-secondary:focus {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.btn-reset {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-reset:hover,
.btn-reset:focus {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

/* Footer */
.footer {
    padding: 16px 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

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

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--success);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
    pointer-events: none;
}

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

/* Tablet and Desktop */
@media (min-width: 480px) {
    .layout-grid {
        grid-template-columns: repeat(9, 1fr);
    }

    .symbol-grid {
        grid-template-columns: repeat(8, 1fr);
    }

    .download-group {
        flex-direction: row;
    }

    .download-group .btn {
        flex: 1;
    }
}

@media (min-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }

    .control-group {
        padding: 20px;
    }

    .color-picker-item input[type="color"] {
        width: 64px;
        height: 64px;
    }
}

/* Focus visible for accessibility */
.btn:focus-visible,
.layout-btn:focus-visible,
.symbol-btn:focus-visible,
input[type="color"]:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}