:root {
    /* Палитра Кробуса и Канализации */
    --bg-color: #0c0a10; /* Глубокая тень */
    --surface-color: #17141f; /* Стены канализации */
    --text-primary: #e0dced; /* Бледный, мистический */
    --text-secondary: #9a8fba; /* Тень */
    --accent-color: #7b42bc; /* Фиолетовый Кробуса */
    --accent-hover: #9656e3;
    --border-color: #2d283e;
    --success-color: #4ade80; /* Болотный свет (акцент для кнопок) */
    --panel-header-bg: #120f18;
}

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

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    background-color: var(--surface-color);
    padding: 1rem 5%;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    letter-spacing: -1px;
}

.logo span {
    color: var(--accent-color);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background-color: white;
    border-radius: 30%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 0 10px rgba(123, 66, 188, 0.5);
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1.8rem;
    font-size: 1rem;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover,
nav a.active {
    color: var(--text-primary);
}

nav a.active {
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 5px;
}

/* Main content */
main {
    flex: 1;
    padding: 2rem 5%;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2.2rem;
    color: var(--text-primary);
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Editor Grid */
.editor-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    height: calc(100vh - 250px);
    min-height: 500px;
}

@media (max-width: 900px) {
    .editor-container {
        grid-template-columns: 1fr;
        height: auto;
    }
}

.panel {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.panel-header {
    background-color: var(--panel-header-bg);
    padding: 0.8rem 1.2rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Textareas & Preview */
textarea,
.preview-area {
    flex: 1;
    width: 100%;
    padding: 1.2rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: "Fira Code", "Consolas", monospace;
    font-size: 1rem;
    resize: none;
    outline: none;
    line-height: 1.7;
}

.preview-area {
    font-family: inherit;
    overflow-y: auto;
    background-color: #121016; /* Чуть темнее */
}

/* Status Bar */
.status-bar {
    background-color: var(--panel-header-bg);
    padding: 0.5rem 1.2rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1.5rem;
}

/* Markdown Preview Styling */
.preview-area h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}
.preview-area h2 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}
.preview-area p {
    margin-bottom: 1.2rem;
    color: var(--text-secondary);
}
.preview-area strong {
    color: var(--text-primary);
    font-weight: 600;
}
.preview-area code {
    background: rgba(123, 66, 188, 0.2);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: monospace;
    color: var(--accent-hover);
}
.preview-area pre {
    background: #08070b;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1.2rem;
    border: 1px solid var(--border-color);
}
.preview-area ul,
.preview-area ol {
    margin-left: 2rem;
    margin-bottom: 1.2rem;
    color: var(--text-secondary);
}
.preview-area blockquote {
    border-left: 4px solid var(--accent-color);
    padding-left: 1rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 1.2rem;
}

/* Buttons */
.btn-group {
    display: flex;
    gap: 0.5rem;
}

.btn {
    background-color: var(--border-color);
    color: var(--text-primary);
    border: 1px solid transparent;
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s;
}

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

.btn-success {
    background-color: #166534; /* Dark green base */
    color: #d1fae5;
}

.btn-success:hover {
    background-color: #15803d;
}

/* Static Pages Content */
.content-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.content-card h2 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}
.content-card h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--accent-hover);
}
.content-card p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}
.content-card ul {
    margin-left: 2rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}
.content-card kbd {
    background: #000;
    padding: 2px 4px;
    border-radius: 3px;
    border: 1px solid var(--border-color);
    font-family: monospace;
}

/* Footer */
footer {
    text-align: center;
    padding: 2.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 2px solid var(--border-color);
    background-color: var(--surface-color);
    margin-top: auto;
}

.krobus-quote {
    font-style: italic;
    color: var(--accent-color);
    margin-top: 10px;
    display: block;
}