/**
 * 100Lab - Font Generator Premium Style
 */

:root {
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --accent: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.3);
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

#app-layout {
    display: grid;
    grid-template-columns: 350px 1fr;
    height: 100vh;
    overflow: hidden;
}

/* Responsive Design */
@media (max-width: 1024px) {
    #app-layout {
        display: flex;
        flex-direction: column;
        height: auto;
        min-height: 100vh;
        overflow-y: auto;
    }

    .controls-panel {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 1.5rem;
        gap: 1.5rem;
        overflow-y: visible;
    }

    .preview-panel {
        padding: 1.5rem;
        height: auto;
        overflow-y: visible;
    }

    .canvas-container {
        aspect-ratio: auto;
        height: auto;
        min-height: 300px;
    }
}

/* Sidebar / Controls */
.controls-panel {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--border);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    overflow-y: auto;
    z-index: 10;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 900;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.brand-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    font-weight: 600;
}

input[type="text"],
select {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    padding: 0.75rem;
    border-radius: 8px;
    color: white;
    font-size: 0.9rem;
    transition: all 0.2s;
}

/* ドロップダウン展開時の背景色と文字色を明示的に指定して視認性を確保 */
select option,
select optgroup {
    background-color: var(--bg-dark);
    color: var(--text-main);
}

input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.seed-row {
    display: flex;
    gap: 0.5rem;
}

.seed-row input {
    flex: 1;
}

.btn-icon {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-dark);
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 800;
    cursor: pointer;
    transition: transform 0.1s, opacity 0.2s;
}

.btn-primary:active {
    transform: scale(0.98);
}

/* Main Canvas / Preview Area */
.preview-panel {
    display: flex;
    flex-direction: column;
    padding: 2rem;
    gap: 2rem;
    overflow-y: auto;
    background: radial-gradient(circle at center, #1e293b 0%, #0f172a 100%);
}

.canvas-container {
    background: black;
    border-radius: 12px;
    overflow: hidden;
    width: 100%;
    max-width: 1200px;
    aspect-ratio: 1.414/1;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    flex-shrink: 0;
    /* サイズの変化を防止 */
}

canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.font-preview-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    flex-shrink: 0;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.font-preview-box label {
    margin-bottom: 1rem;
    opacity: 0.7;
    font-size: 0.8rem;
}

#preview-text-input {
    width: 100%;
    background: none !important;
    border: none !important;
    padding: 0 !important;
    font-size: 4rem;
    color: white;
    text-align: center;
    line-height: 1.1;
    height: 1.2em;
    outline: none;
    box-shadow: none !important;
    /* レンダリング品質の向上 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: geometricPrecision;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(56, 189, 248, 0.2);
    border-radius: 3px;
}

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