:root {
    /* Red Culture Theme - Consistent with existing files */
    --app-bg: #fdfbf7;
    --sidebar-bg: rgba(255, 248, 240, 0.8);
    --glass-border: rgba(214, 59, 29, 0.2);
    --text-primary: #8b0000;
    --text-secondary: #a05a5a;
    --accent-red: #d63b1d;
    --accent-gold: #ffb400;
    --accent-hover: #b32b12;
    --danger-red: #ff3b30;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(139, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(139, 0, 0, 0.12);
    --shadow-lg: 0 20px 40px rgba(139, 0, 0, 0.15);

    --font-family: "Noto Serif SC", "Outfit", serif;
    --font-title: "Ma Shan Zheng", cursive;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--app-bg);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?q=80&w=2574&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
}

.app-container {
    width: 95vw;
    height: 90vh;
    max-width: 1600px;
    background: rgba(255, 252, 245, 0.85);
    backdrop-filter: blur(20px) saturate(120%);
    -webkit-backdrop-filter: blur(20px) saturate(120%);
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    display: flex;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 340px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.2rem;
    flex-shrink: 0;
}

.sidebar-header {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.window-controls {
    display: flex;
    gap: 8px;
    margin-bottom: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background: #ff5f56;
    border: 1px solid #e0443e;
}

.dot.yellow {
    background: #ffbd2e;
    border: 1px solid #dea123;
}

.dot.green {
    background: #27c93f;
    border: 1px solid #1aab29;
}

h1 {
    font-family: var(--font-title);
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--text-primary);
    letter-spacing: 0.05em;
    line-height: 1.2;
}

.subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: -5px;
}

.highlight {
    color: var(--accent-red);
}

.controls-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.controls-wrapper::-webkit-scrollbar {
    width: 6px;
}

.controls-wrapper::-webkit-scrollbar-track {
    background: rgba(139, 0, 0, 0.05);
    border-radius: 3px;
}

.controls-wrapper::-webkit-scrollbar-thumb {
    background: var(--accent-red);
    border-radius: 3px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Info Panels */
.info-panel {
    background: rgba(255, 255, 255, 0.6);
    padding: 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    color: var(--text-primary);
    border: 1px solid rgba(139, 0, 0, 0.1);
}

.culture-panel {
    background: linear-gradient(135deg, rgba(214, 59, 29, 0.1), rgba(255, 180, 0, 0.1));
}

.culture-text {
    line-height: 1.6;
    font-size: 0.75rem;
}

.culture-text strong {
    color: var(--accent-red);
    font-weight: 700;
}

.status-panel {
    min-height: 50px;
}

#statusText {
    font-size: 0.8rem;
    color: var(--accent-red);
    font-weight: 600;
}

/* Parameter Inputs */
.param-inputs {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.param-label {
    font-size: 0.8rem;
    color: var(--text-primary);
    font-weight: 600;
    flex-shrink: 0;
}

.param-inputs input[type="number"] {
    width: 70px;
    padding: 6px 10px;
    border-radius: 8px;
    border: 1px solid var(--accent-red);
    background: white;
    font-family: var(--font-family);
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 600;
    text-align: center;
}

.param-inputs input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(255, 180, 0, 0.2);
}

.inverse-value,
.result-value {
    padding: 6px 12px;
    background: var(--accent-gold);
    color: white;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.85rem;
    min-width: 40px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.result-value {
    background: var(--accent-red);
}

/* Buttons */
.apple-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-family: var(--font-family);
    gap: 6px;
    margin-top: 0.3rem;
}

.primary-btn {
    background: white;
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
    box-shadow: var(--shadow-sm);
}

.primary-btn:hover {
    background: var(--accent-red);
    color: white;
    transform: scale(1.02);
}

.action-btn {
    background: var(--accent-red);
    color: white;
    width: 100%;
    box-shadow: var(--shadow-md);
}

.action-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.danger-btn {
    background: rgba(139, 0, 0, 0.1);
    color: var(--text-primary);
    width: 100%;
}

.danger-btn:hover {
    background: rgba(139, 0, 0, 0.2);
}

.verify-btn {
    background: var(--accent-gold);
    color: white;
    box-shadow: var(--shadow-md);
}

.verify-btn:hover {
    background: #e0a000;
}

.apple-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.actions-footer {
    display: flex;
    gap: 10px;
}

.icon {
    display: inline-block;
    font-size: 1rem;
}

/* Main Stage */
.visualizer-stage {
    flex-grow: 1;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    overflow-y: auto;
}

.glass-pane {
    background: rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.5), var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.6);
    padding: 1.5rem;
}

.panel-header {
    margin-bottom: 1rem;
}

.panel-header h2 {
    font-family: var(--font-title);
    font-size: 1.5rem;
    color: var(--text-primary);
    font-weight: 400;
}

.panel-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 0.2rem;
}

/* Verification Panel */
.verification-panel {
    flex-shrink: 0;
}

.verification-content {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.verification-inputs {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
}

.ver-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.ver-input-group label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.ver-input-group input {
    width: 80px;
    padding: 8px 12px;
    border-radius: 8px;
    border: 2px solid var(--accent-red);
    background: white;
    font-family: var(--font-family);
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 600;
    text-align: center;
}

.ver-input-group input:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(255, 180, 0, 0.2);
}

.verification-result {
    flex-grow: 1;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 12px;
    border: 1px solid rgba(139, 0, 0, 0.1);
    min-height: 120px;
}

.hint-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
}

.result-step {
    margin: 0.5rem 0;
    font-size: 0.85rem;
    line-height: 1.6;
}

.result-step strong {
    color: var(--accent-red);
}

.success-mark {
    color: #27c93f;
    font-size: 1.5rem;
    font-weight: bold;
}

.fail-mark {
    color: var(--danger-red);
    font-size: 1.5rem;
    font-weight: bold;
}

/* Rings Panel */
.rings-panel {
    flex-grow: 1;
}

.rings-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 2rem;
    min-height: 300px;
}

.ring-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}

.ring-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.ring-title sub {
    font-size: 0.9rem;
}

canvas {
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    background: white;
}

.ring-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-style: italic;
}

.mapping-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.arrow-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-red);
    background: rgba(214, 59, 29, 0.1);
    padding: 4px 12px;
    border-radius: 12px;
}

.decrypt-label {
    color: var(--accent-gold);
    background: rgba(255, 180, 0, 0.1);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.verification-result {
    animation: fadeIn 0.4s ease-out;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.icon {
    animation: pulse 2s infinite;
}

/* Responsive */
@media (max-width: 1400px) {
    .verification-content {
        flex-direction: column;
    }

    .rings-container {
        flex-direction: column;
    }
}