*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

:focus:not(:focus-visible) {
    outline: none;
}

body {
    background: var(--color-white);
    font-family: var(--font-family-system);
    height: 100vh;
    overflow: hidden;
    color: var(--color-text-primary);
    line-height: 1.5;
}

:root {
    --color-primary: #006837;
    --color-primary-dark: #00502a;
    --color-primary-light: #e8f3ed;
    --color-accent: #00ff00;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-bg-primary: #f5f5f7;
    --color-bg-secondary: #ffffff;
    --color-border-light: #006837;
    --color-border-subtle: #e5e5ea;
    --color-text-primary: #1d1d1b;
    --color-text-secondary: #8e8e93;
    --color-text-tertiary: #adadb0;
    --color-hover-bg: #e5e5ea;
    --color-active-bg: #eaeaec;
    --color-tooltip-bg: #1d1d1b;
    --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 1px 5px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-tooltip: 0 4px 18px rgba(0, 0, 0, 0.22);
    --font-family-system: -apple-system, 'SF Pro Text', 'Helvetica Neue', system-ui, sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 13px;
    --font-size-base: 15px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --spacing-1: 4px;
    --spacing-2: 8px;
    --spacing-3: 12px;
    --spacing-4: 16px;
    --spacing-5: 20px;
    --spacing-6: 24px;
    --spacing-8: 32px;
    --radius-sm: 3px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 13px;
    --radius-2xl: 20px;
    --radius-full: 9999px;
    --sidebar-width: 360px;
    --transition-default: 0.2s ease;
    --transition-fast: 0.15s ease;
}

.app-container {
    display: flex;
    height: 100vh;
    width: 100%;
    background: var(--color-bg-primary);
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--color-bg-secondary);
    border-right: 0.5px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: #c6c6c8;
    border-radius: var(--radius-full);
}

.sidebar-header {
    padding: var(--spacing-8) var(--spacing-5) var(--spacing-5);
    border-bottom: 0.5px solid var(--color-border-light);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 var(--spacing-4);
}

.sidebar-header img {
    max-width: 135px;
    height: auto;
    display: block;
}

.fixed-section {
    flex-shrink: 0;
    padding: var(--spacing-5);
    margin: 0 var(--spacing-4);
    border-bottom: 0.5px solid var(--color-border-light);
}

.sidebar-footer {
    border-bottom: none;
    margin-top: auto;
}

.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-primary);
    padding: var(--spacing-6);
    overflow: auto;
}

.poster-wrapper {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    display: inline-block;
    line-height: 0;
}

.poster-wrapper svg {
    display: block;
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: calc(100vh - 48px);
    border-radius: var(--radius-2xl);
}

.section-title {
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--color-text-secondary);
    margin-bottom: 14px;
}

.section-title-row {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 14px;
}

.section-title-row .section-title {
    margin-bottom: 0;
}

.ios-button,
.export-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-default);
    border: none;
}

.ios-button {
    width: 100%;
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 14px var(--spacing-5);
    font-size: var(--font-size-md);
    color: var(--color-accent);
    letter-spacing: -0.1px;
}

.ios-button:hover {
    background: var(--color-primary-dark);
}

.export-buttons {
    position: fixed;
    top: var(--spacing-5);
    right: var(--spacing-5);
    display: flex;
    gap: 10px;
    z-index: 1000;
}

.export-btn {
    background: var(--color-primary);
    border-radius: var(--radius-xl);
    padding: 9px 18px;
    font-size: var(--font-size-sm);
    color: var(--color-accent);
    letter-spacing: 0.1px;
}

.export-btn:hover {
    background: var(--color-primary-dark);
}

.btn-icon {
    display: block;
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    pointer-events: none;
}

.export-btn .btn-icon {
    width: 14px;
    height: 14px;
}

.ios-button .btn-icon {
    width: 16px;
    height: 16px;
}

.swap-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: transparent;
    border: 1.5px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 7px 18px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary);
    cursor: pointer;
    font-family: inherit;
    letter-spacing: -0.1px;
    transition: background var(--transition-default), color var(--transition-default);
}

.swap-btn:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.color-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-bg-primary);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-2);
}

.color-label {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-black);
    letter-spacing: -0.2px;
}

.color-sublabel {
    font-size: 11.5px;
    color: var(--color-text-secondary);
    display: block;
    margin-top: 2px;
    font-weight: 400;
}

.color-swatch-btn {
    width: 40px;
    height: 40px;
    border-radius: 5px;
    cursor: pointer;
    padding: 0;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
    border: none;
}

.color-swatch-btn input[type="color"] {
    width: 100%;
    height: 100%;
    cursor: pointer;
    border: none;
    background: transparent;
    padding: 0;
    display: block;
}

input[type="color"] {
    border: none;
    background: transparent;
    outline: none;
    box-shadow: none;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
    border-radius: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: 0 !important;
    border-radius: 0;
    padding: 0;
}

input[type="color"]::-moz-color-swatch {
    border: 0 !important;
    border-radius: 0;
    padding: 0;
}

.swap-row {
    display: flex;
    justify-content: center;
    margin: 18px 6px 0;
}

.presets-scroll-area {
    flex-shrink: 0;
    padding: var(--spacing-5);
    border-bottom: 0.5px solid var(--color-border-light);
    margin: 0 var(--spacing-4);
}

.presets-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.preset-card {
    background: var(--color-bg-primary);
    border-radius: var(--radius-sm);
    padding: 10px var(--spacing-3);
    cursor: pointer;
    transition: background var(--transition-default), transform var(--transition-default);
    border: 0.5px solid var(--color-border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
}

.preset-card:hover {
    background: var(--color-hover-bg);
    transform: scale(0.97);
}

.preset-swatch-duo {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
}

.preset-swatch {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    box-shadow: var(--shadow-sm);
    border: 0.5px solid rgba(0, 0, 0, 0.08);
}

.ios-select {
    width: 100%;
    background: var(--color-bg-primary);
    border: none;
    border-radius: var(--radius-sm);
    padding: 13px var(--spacing-4);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-black);
    cursor: pointer;
    font-family: inherit;
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%238e8e93' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
    background-repeat: no-repeat;
    background-position: right 14px center;
}

.ios-select:focus {
    outline: none;
    background-color: var(--color-hover-bg);
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--color-bg-primary);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-sm);
}

.slider-value {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-primary);
    min-width: 48px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: #c6c6c8;
    border-radius: 2px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px;
    height: 22px;
    background: var(--color-white);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    border: 0.5px solid #c6c6c8;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--color-bg-primary);
    border-radius: var(--radius-sm);
    padding: 10px 15px;
    cursor: pointer;
    border: 0.5px solid transparent;
    transition: border-color var(--transition-fast), background var(--transition-fast);
    user-select: none;
}

.radio-label:hover {
    background: var(--color-active-bg);
}

.radio-label input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    border: 1.5px solid #c6c6c8;
    background: var(--color-white);
    cursor: pointer;
    flex-shrink: 0;
    position: relative;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.radio-label input[type="radio"]:checked {
    border-color: var(--color-primary);
    background: var(--color-primary);
}

.radio-label input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 6px;
    height: 6px;
    margin: auto;
    border-radius: 50%;
    background: var(--color-white);
}

.radio-label:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.radio-text {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--color-text-primary);
    flex: 1;
}

.radio-example {
    font-size: 10.5px;
    color: var(--color-text-tertiary);
    font-weight: 400;
    font-style: italic;
    white-space: nowrap;
}

.hint-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.hint {
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    line-height: 1;
    padding: 2px 5px;
    border-radius: var(--spacing-1);
    border: 1.5px solid var(--color-primary);
    letter-spacing: 0;
    transition: background var(--transition-fast), color var(--transition-fast);
    cursor: pointer;
    user-select: none;
}

.hint:hover,
.hint:focus-visible {
    background: var(--color-primary);
    color: var(--color-white);
    outline: none;
}

.tooltip {
    position: absolute;
    left: 50%;
    bottom: calc(100% + 9px);
    transform: translateX(-50%);
    background: var(--color-tooltip-bg);
    color: var(--color-white);
    font-size: 11.5px;
    font-weight: 500;
    white-space: nowrap;
    padding: 7px 13px;
    border-radius: 10px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.17s ease;
    z-index: 300;
    box-shadow: var(--shadow-tooltip);
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--color-tooltip-bg);
}

.hint-wrapper:hover .tooltip,
.hint-wrapper:focus-within .tooltip {
    opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

@media (max-width: 900px) {
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        max-height: 55vh;
        border-right: none;
        border-bottom: 0.5px solid #c6c6c8;
    }

    .export-buttons {
        top: var(--spacing-3);
        right: var(--spacing-3);
        gap: var(--spacing-2);
    }

    .export-btn {
        padding: 8px 14px;
        font-size: var(--font-size-sm);
    }
}