/* ============================================================================
   ACPLANNER v2.0 - CORE DESIGN SYSTEM & STYLESHEET
   Clean, modern, high-performance sim racing strategy theme
   ============================================================================ */

:root {
    --bg-base: #070a12;
    --bg-surface: #0e1422;
    --bg-surface-elevated: #151c2e;
    --bg-glass: rgba(14, 20, 34, 0.75);
    --bg-input: #1b243b;
    --bg-input-focus: #222d48;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(0, 240, 255, 0.35);
    --border-color-active: #00f0ff;

    --text-primary: #f0f4fc;
    --text-secondary: #9aa8c0;
    --text-subtle: #62718a;
    --text-inverse: #070a12;

    --cyan-primary: #00f0ff;
    --cyan-glow: rgba(0, 240, 255, 0.25);
    --green-primary: #00e676;
    --green-glow: rgba(0, 230, 118, 0.25);
    --amber-primary: #ffab00;
    --amber-glow: rgba(255, 171, 0, 0.25);
    --red-primary: #ff5252;
    --purple-primary: #b388ff;

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-pill: 9999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
    --shadow-glow-cyan: 0 0 15px var(--cyan-glow);
    --shadow-glow-green: 0 0 15px var(--green-glow);
}

/* Global Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--text-primary);
}

.font-time, .font-mono {
    font-family: var(--font-mono);
}

.text-cyan { color: var(--cyan-primary) !important; }
.text-green { color: var(--green-primary) !important; }
.text-amber { color: var(--amber-primary) !important; }
.text-red { color: var(--red-primary) !important; }
.text-secondary { color: var(--text-secondary); }
.text-subtle { color: var(--text-subtle); }
.text-center { text-align: center; }
.text-xs { font-size: 11px; }

.hidden {
    display: none !important;
}

/* Layout Flex & Grids */
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-align-center { display: flex; align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.flex-gap-xs { display: flex; gap: 6px; align-items: center; }
.flex-gap-sm { display: flex; gap: 10px; align-items: center; }
.flex-gap-md { display: flex; gap: 16px; align-items: center; }

.grid-2col { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.grid-3col { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.grid-4col { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }

.margin-top-xs { margin-top: 6px; }
.margin-top-sm { margin-top: 12px; }
.margin-top-md { margin-top: 18px; }
.margin-top-lg { margin-top: 24px; }
.margin-top-xl { margin-top: 32px; }

/* Global App Header */
.app-header {
    background: linear-gradient(180deg, #0e1424 0%, #090e1a 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--cyan-primary) 0%, #0077ff 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow-cyan);
}

.logo-icon svg {
    width: 20px;
    height: 20px;
    fill: #070a12;
}

.logo-text h1 {
    font-size: 18px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: 0.05em;
}

.logo-sub {
    font-size: 10px;
    color: var(--cyan-primary);
    font-weight: 600;
    letter-spacing: 0.08em;
}

/* Header Dropdowns & CRUD Controls */
.header-selectors {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-dropdown-group {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.03);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.header-dropdown-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.header-dropdown-group select {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 13px;
    font-weight: 500;
    outline: none;
    cursor: pointer;
    min-width: 160px;
}

.header-dropdown-group select:focus {
    border-color: var(--cyan-primary);
}

.btn-crud-xs {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 3px 6px;
    font-size: 10px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-crud-xs:hover {
    background: var(--cyan-primary);
    color: var(--text-inverse);
    border-color: var(--cyan-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: var(--font-main);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-sm {
    padding: 5px 12px;
    font-size: 12px;
}

.btn-cyan {
    background: var(--cyan-primary);
    color: var(--text-inverse);
    border-color: var(--cyan-primary);
}

.btn-cyan:hover {
    background: #4ef4ff;
    box-shadow: var(--shadow-glow-cyan);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-outline:hover {
    border-color: var(--cyan-primary);
    color: var(--cyan-primary);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.badge-green { background: rgba(0, 230, 118, 0.15); color: var(--green-primary); border: 1px solid rgba(0, 230, 118, 0.3); }
.badge-amber { background: rgba(255, 171, 0, 0.15); color: var(--amber-primary); border: 1px solid rgba(255, 171, 0, 0.3); }
.badge-cyan { background: rgba(0, 240, 255, 0.15); color: var(--cyan-primary); border: 1px solid rgba(0, 240, 255, 0.3); }
.badge-subtle { background: rgba(255, 255, 255, 0.05); color: var(--text-secondary); border: 1px solid var(--border-color); }
.badge-redundant { background: rgba(255, 82, 82, 0.15); color: var(--red-primary); border: 1px solid rgba(255, 82, 82, 0.3); font-weight: bold; }

/* Primary Navigation Tabs */
.nav-tabs-bar {
    display: flex;
    gap: 4px;
    background: #090d18;
    padding: 8px 24px 0 24px;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-bottom: 2px solid transparent;
    padding: 10px 20px;
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--cyan-primary);
    border-bottom-color: var(--cyan-primary);
    background: rgba(0, 240, 255, 0.03);
}

/* App Main Container */
.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px;
}

/* Subnav & Master Controls */
.subnav-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.section-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--cyan-primary);
    letter-spacing: 0.1em;
}

.subnav-title h2 {
    font-size: 22px;
    margin-top: 2px;
}

.section-toggle-pills {
    display: flex;
    gap: 10px;
}

/* Checkbox & Radio Custom Pills */
.checkbox-pill-label, .radio-pill-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.checkbox-pill-label:hover, .radio-pill-item:hover {
    border-color: var(--border-color-hover);
    color: var(--text-primary);
}

.checkbox-pill-label input:checked + span,
.radio-pill-item input:checked + span {
    color: var(--cyan-primary);
    font-weight: 700;
}

.radio-pill-group {
    display: inline-flex;
    gap: 4px;
    background: rgba(0, 0, 0, 0.2);
    padding: 3px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-color);
}

.radio-pill-group input[type="radio"] {
    display: none;
}

.radio-pill-group .radio-pill-item input:checked + span {
    background: var(--cyan-primary);
    color: var(--text-inverse);
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    font-weight: 700;
}

.radio-pill-group .radio-pill-item span {
    padding: 4px 12px;
    transition: all 0.2s ease;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
}

.card-body {
    padding: 18px;
}

/* Form Inputs */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.input-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.input-group input[type="number"],
.input-group input[type="text"],
.input-group input[type="time"] {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 13px;
    font-family: var(--font-main);
    outline: none;
    transition: all 0.2s ease;
}

.input-group input:focus {
    border-color: var(--cyan-primary);
    background: var(--bg-input-focus);
    box-shadow: 0 0 0 2px var(--cyan-glow);
}

.time-split-inputs {
    display: flex;
    align-items: center;
    gap: 6px;
}

.time-split-inputs input {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    text-align: center;
    width: 60px;
    outline: none;
}

.time-colon {
    font-weight: bold;
    color: var(--cyan-primary);
}

/* Group 2: Pit Sections Grid */
.pit-sections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}

.pit-section-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
}

.pit-section-header h4 {
    font-size: 13px;
    color: var(--cyan-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 6px;
}

/* Multi-Scenario Evaluator Grid (1-4 Scenarios) */
.evaluator-scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.evaluator-scenario-card {
    background: rgba(14, 20, 36, 0.9);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.scenario-card-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 8px;
}

.scenario-title {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 700;
    color: var(--cyan-primary);
}

.scenario-toggles-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.checkbox-label-sm {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--text-secondary);
    cursor: pointer;
}

.evaluator-result-card {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(0, 240, 255, 0.15);
    border-radius: var(--radius-sm);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.eval-label {
    font-size: 11px;
    color: var(--text-secondary);
}

.eval-value {
    font-family: var(--font-mono);
    font-size: 16px;
    color: var(--green-primary);
}

.btn-group-scenarios {
    display: inline-flex;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.btn-scen-count {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-right: 1px solid var(--border-color);
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-scen-count:last-child {
    border-right: none;
}

.btn-scen-count.active {
    background: var(--cyan-primary);
    color: var(--text-inverse);
}

/* Strategy Cards Matrix (Group 3) - Stacked in a single column for wide readability */
.strategy-cards-matrix {
    display: flex;
    flex-direction: column;
    gap: 18px;
    width: 100%;
}

/* Tables & Stint Schedules */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.strategy-table, .endurance-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    text-align: left;
}

.strategy-table th, .endurance-table th {
    background: rgba(0, 0, 0, 0.25);
    color: var(--text-secondary);
    padding: 10px 12px;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.strategy-table td, .endurance-table td {
    padding: 8px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    vertical-align: middle;
    white-space: nowrap;
}

.table-input-sm {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 12px;
    width: 70px;
    outline: none;
}

.table-input-xs {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 2px 6px;
    font-size: 11px;
    width: 50px;
    outline: none;
}

.table-select-sm {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 12px;
    outline: none;
}

.table-select-xs {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 2px 6px;
    font-size: 11px;
    outline: none;
}

/* Interactive Stint Toggle Pills */
.btn-toggle-pill {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-subtle);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-toggle-pill.active {
    background: rgba(0, 230, 118, 0.2);
    color: var(--green-primary);
    border-color: rgba(0, 230, 118, 0.5);
}

.btn-toggle-pill.active-longpit {
    background: rgba(0, 240, 255, 0.2);
    color: var(--cyan-primary);
    border-color: rgba(0, 240, 255, 0.5);
}

.btn-stamp-xs {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 3px 6px;
    font-size: 11px;
    cursor: pointer;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.btn-stamp-xs:hover {
    background: var(--cyan-primary);
    color: var(--text-inverse);
}

/* Multi-Schedule Tabs (Endurance) */
.endurance-schedule-tabs-bar {
    display: inline-flex;
    gap: 4px;
    background: rgba(0, 0, 0, 0.3);
    padding: 3px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.btn-sched-tab {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: var(--radius-sm);
    padding: 5px 14px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-sched-tab.active {
    background: var(--cyan-primary);
    color: var(--text-inverse);
}

/* Driver Roster Chips */
.driver-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.driver-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 240, 255, 0.1);
    color: var(--cyan-primary);
    border: 1px solid rgba(0, 240, 255, 0.3);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 600;
}

.driver-chip-remove {
    cursor: pointer;
    color: var(--text-subtle);
    font-weight: bold;
}

.driver-chip-remove:hover {
    color: var(--red-primary);
}

.add-driver-input-group {
    display: flex;
    gap: 6px;
}

.add-driver-input-group input {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    font-size: 12px;
    outline: none;
}

/* Live Telemetry Dashboard Grid */
.live-dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.live-widget-card {
    padding: 16px;
}

.widget-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 8px;
    margin-bottom: 10px;
}

.widget-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.widget-main-value {
    font-size: 24px;
    font-weight: 800;
}

.widget-sub-text {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.live-progress-bar-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-pill);
    overflow: hidden;
}

.live-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--cyan-primary), var(--green-primary));
    transition: width 0.5s ease;
}

/* Row Highlight States */
.live-stint-active-row {
    background: rgba(0, 240, 255, 0.07) !important;
    border-left: 3px solid var(--cyan-primary);
}

.live-stint-finished-row {
    background: rgba(0, 230, 118, 0.04) !important;
    border-left: 3px solid var(--green-primary);
}

.redundant-stint-row {
    opacity: 0.6;
    background: rgba(255, 82, 82, 0.05) !important;
}

/* Modals */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-dialog {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color-hover);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    width: 90%;
    max-width: 420px;
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 16px;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-subtle);
    font-size: 20px;
    cursor: pointer;
}

.btn-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 18px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 12px 18px;
    border-top: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
}

/* API & Authentication Indicators */
.msg-error {
    background: rgba(255, 82, 82, 0.15);
    color: #ff5252;
    border: 1px solid rgba(255, 82, 82, 0.3);
}

.msg-success {
    background: rgba(0, 230, 118, 0.15);
    color: #00e676;
    border: 1px solid rgba(0, 230, 118, 0.3);
}

.calculating-pulse {
    opacity: 0.7;
    transition: opacity 0.15s ease-in-out;
}