@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --bg-main: #ffffff;
    --bg-panel: #f4f4f5;
    --bg-panel-hover: #e4e4e7;
    --text-primary: #18181b;
    --text-secondary: #71717a;
    --text-muted: #a1a1aa;
    --border-color: #e4e4e7;
    --border-dark: #18181b;
    --accent-red: #dc2626;
    --accent-red-hover: #b91c1c;
    --accent-red-light: #fef2f2;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', Consolas, Monaco, monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Scrollbars - Ultra Clean and Thin */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-panel);
}
::-webkit-scrollbar-thumb {
    background: var(--text-muted);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Header - Modern Swiss Typographic Top-Bar */
.swiss-header {
    height: 64px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 2px solid var(--border-dark);
    background-color: var(--bg-main);
    user-select: none;
    flex-shrink: 0;
}

.logo-area {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.logo-area h1 {
    font-size: 15px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    line-height: 1.1;
}

.logo-tag {
    font-size: 10px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Profile Segmented Tab Button Menu */
.profile-pills {
    display: flex;
    border: 1px solid var(--border-dark);
    background-color: var(--bg-main);
}

.profile-pill {
    background: var(--bg-main);
    color: var(--text-primary);
    border: none;
    border-right: 1px solid var(--border-dark);
    padding: 7px 16px;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    outline: none;
}

.profile-pill:last-child {
    border-right: none;
}

.profile-pill:hover {
    background-color: var(--bg-panel);
}

.profile-pill.active {
    background-color: var(--border-dark);
    color: var(--bg-main);
}

/* Stress Script Selector */
.select-wrapper {
    position: relative;
}

.select-wrapper select {
    background: var(--bg-main);
    border: 1px solid var(--border-dark);
    color: var(--text-primary);
    padding: 6px 36px 6px 14px;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    outline: none;
    appearance: none;
    cursor: pointer;
    border-radius: 0;
    height: 31px;
}

.select-wrapper select:hover {
    background-color: var(--bg-panel);
}

.select-wrapper::after {
    content: "↓";
    font-size: 11px;
    font-weight: 800;
    color: var(--text-primary);
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

/* Execute & Stop Action Controls */
.actions-area {
    display: flex;
    gap: 8px;
}

button {
    font-family: var(--font-sans);
    outline: none;
}

#runBtn {
    background-color: var(--border-dark);
    color: var(--bg-main);
    border: 1px solid var(--border-dark);
    padding: 0 18px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    height: 31px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#runBtn:hover:not(:disabled) {
    background-color: #27272a;
    border-color: #27272a;
}

#runBtn:disabled {
    background-color: var(--border-color);
    border-color: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
}

#stopBtn {
    background-color: var(--bg-main);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
    padding: 0 18px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    height: 31px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#stopBtn:hover:not(:disabled) {
    background-color: var(--accent-red-light);
}

#stopBtn:disabled {
    border-color: var(--border-color);
    color: var(--text-muted);
    background-color: var(--bg-main);
    cursor: not-allowed;
}

/* Main Layout Structure */
.swiss-main {
    display: flex;
    flex: 1;
    overflow: hidden;
    background-color: var(--bg-main);
}

.editor-pane {
    width: 50%;
    display: flex;
    flex-direction: column;
    border-right: 1.5px solid var(--border-dark);
    height: 100%;
}

.console-pane {
    width: 50%;
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Sections split within editor-pane */
.rules-section {
    height: 35%;
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid var(--border-color);
}

.code-section {
    height: 65%;
    display: flex;
    flex-direction: column;
}

.console-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Section Header - Bold & Clean Information Line */
.section-header {
    background-color: var(--bg-panel);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 16px;
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    flex-shrink: 0;
    user-select: none;
}

/* Textarea & Code Viewports */
textarea {
    flex: 1;
    border: none;
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-main);
    resize: none;
    outline: none;
    overflow-y: auto;
}

textarea:focus {
    background-color: #fafafa;
}

/* Light high-contrast terminal console */
.output-panel {
    flex: 1;
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-mono);
    padding: 18px;
    overflow-y: auto;
    white-space: pre-wrap;
    font-size: 13px;
    line-height: 1.6;
    border: none;
}

/* Interactive Input bar */
.input-area {
    display: flex;
    gap: 12px;
    padding: 12px 18px;
    background-color: var(--bg-panel);
    border-top: 1.5px solid var(--border-dark);
    align-items: center;
    flex-shrink: 0;
}

.input-area input {
    flex: 1;
    background-color: var(--bg-main);
    color: var(--text-primary);
    border: 1px solid var(--border-dark);
    padding: 8px 14px;
    font-family: var(--font-mono);
    font-size: 12px;
    outline: none;
}

.input-area input:focus {
    background-color: #fafafa;
}

.input-area button {
    background-color: var(--border-dark);
    color: var(--bg-main);
    border: 1px solid var(--border-dark);
    padding: 0 16px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    height: 31px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.input-area button:hover {
    background-color: #27272a;
}