/* Design Tokens & CSS Variables */
:root {
    /* Colors */
    --bg-charcoal: #0f1117;
    --card-bg: #1a1d27;
    --surface-secondary: #22263a;
    --primary-blue: #3b82f6;
    --secondary-cyan: #06b6d4;
    --positive: #10b981;
    --negative: #f43f5e;
    --warning: #f59e0b;

    /* Text */
    --text-main: #f1f5f9;
    --text-muted: #64748b;

    /* Fonts */
    --font-heading: 'Syne', sans-serif;
    --font-body: 'Manrope', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Effects */
    --glow-primary: 0 0 20px rgba(59, 130, 246, 0.4);
    --border-light: rgba(255, 255, 255, 0.05);
    --border-glow: rgba(59, 130, 246, 0.3);
}

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

body {
    background-color: var(--bg-charcoal);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
    font-size: 14px;
}

h1,
h2,
h3,
h4,
h5 {
    font-family: var(--font-heading);
    margin-bottom: 1rem;
    font-weight: 700;
}

h1 {
    font-size: 1.8rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 1.3rem;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0.5rem;
    margin-bottom: 1.2rem;
}

h3 {
    font-size: 1.1rem;
    color: var(--secondary-cyan);
}

/* Layout */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

.main-grid {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 1.5rem;
    align-items: start;
}

/* Removed to aggregate media queries at the end */

/* Glassmorphism Cards */
.card {
    background-color: rgba(26, 29, 39, 0.7);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.1);
}

/* Problem Statement Header */
.problem-statement {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-top: 4px solid var(--primary-blue);
    background: linear-gradient(135deg, rgba(26, 29, 39, 0.9) 0%, rgba(34, 38, 58, 0.7) 100%);
    position: relative;
    overflow: hidden;
}

.problem-statement::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--secondary-cyan), transparent);
}

.header-content {
    flex: 1;
    padding-right: 2rem;
}

.target-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.objective-box,
.assumptions-box {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border-left: 3px solid var(--primary-blue);
    font-size: 0.9rem;
}

.assumptions-box {
    border-left-color: var(--secondary-cyan);
}

.assumptions-box ul {
    margin-top: 0.5rem;
    margin-left: 1.5rem;
    color: var(--text-muted);
}

.header-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-width: 180px;
}

/* Form Inputs */
.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.input-group label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

input,
select {
    background-color: var(--surface-secondary);
    border: 1px solid var(--border-light);
    color: var(--text-main);
    padding: 0.6rem 0.8rem;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    transition: all 0.2s ease;
    width: 100%;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Buttons */
.btn {
    padding: 0.7rem 1.2rem;
    border-radius: 6px;
    font-family: var(--font-heading);
    font-weight: 600;
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background-color: #2563eb;
    box-shadow: var(--glow-primary);
}

.btn-secondary {
    background-color: var(--surface-secondary);
    color: var(--secondary-cyan);
    border: 1px solid var(--secondary-cyan);
}

.btn-secondary:hover {
    background-color: rgba(6, 182, 212, 0.1);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-main);
}

.btn-outline:hover,
.btn-outline.active {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.btn-muted {
    background-color: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-muted);
}

.btn-muted:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.btn-block {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    width: 100%;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.input-table th {
    text-align: right;
    padding: 0.5rem;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
}

.input-table th:first-child {
    text-align: left;
}

.input-table td {
    padding: 0.4rem;
}

.input-table td:first-child {
    font-weight: 500;
    color: var(--text-muted);
}

.input-table input {
    text-align: right;
    padding: 0.4rem;
    min-width: 70px;
}

/* Hide spin buttons for cleaner financial inputs */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
    appearance: textfield;
}

/* DCF Data Table */
.data-table th {
    text-align: right;
    padding: 0.8rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-muted);
}

.data-table th:first-child {
    text-align: left;
}

.data-table td {
    text-align: right;
    padding: 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    font-family: var(--font-mono);
}

.data-table td:first-child {
    text-align: left;
    font-family: var(--font-body);
}

.data-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

.row-highlight {
    background-color: rgba(59, 130, 246, 0.1) !important;
    font-weight: bold;
    color: var(--secondary-cyan);
}

.row-highlight td {
    border-top: 1px solid rgba(59, 130, 246, 0.2);
    border-bottom: 1px solid rgba(59, 130, 246, 0.2);
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.kpi-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.15);
}

.kpi-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-value {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
}

.primary-glow {
    border-color: var(--border-glow);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.15);
}

.primary-text {
    color: var(--primary-blue);
}

.positive-text {
    color: var(--positive);
}

.warning-text {
    color: var(--warning);
}

.negative-text {
    color: var(--negative);
}

/* Workings Boxes */
.analytics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.transparent-workings {
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px dashed var(--border-light);
}

.workings-note {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: #cbd5e1;
}

.workings-row {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.workings-row:last-child {
    border-bottom: none;
}

.workings-formula {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.8rem;
    margin-bottom: 0.25rem;
    display: block;
}

.workings-total {
    border-top: 1px solid var(--text-muted);
    border-bottom: 3px double var(--text-muted);
    font-weight: bold;
    color: var(--text-main);
    padding-top: 0.5rem;
    margin-top: 0.5rem;
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.chart-container {
    height: 300px;
    position: relative;
    padding: 1rem;
    display: flex;
    flex-direction: column;
}

/* Sensitivity Heatmap Table */
.heatmap-table {
    width: 100%;
    text-align: center;
    border-collapse: collapse;
}

.heatmap-table th,
.heatmap-table td {
    padding: 0.5rem;
    border: 1px solid var(--border-light);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.heatmap-table th {
    background-color: rgba(0, 0, 0, 0.3);
    color: var(--text-muted);
}

.heatmap-cell {
    font-weight: 500;
    color: #fff;
}

.heatmap-base-case {
    border: 2px solid var(--primary-blue) !important;
    position: relative;
    z-index: 2;
    box-shadow: var(--glow-primary);
}

/* Utilities */
.mt-4 {
    margin-top: 1.5rem;
}

.text-right {
    text-align: right;
}

.text-center {
    text-align: center;
}

/* Commentary Panel */
.commentary-panel {
    border-left: 4px solid var(--positive);
}

.commentary-content {
    font-size: 0.95rem;
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.2);
    color: var(--warning);
    border: 1px solid var(--warning);
}

.badge-positive {
    background-color: rgba(16, 185, 129, 0.2);
    color: var(--positive);
    border: 1px solid var(--positive);
}

.badge-danger {
    background-color: rgba(244, 63, 94, 0.2);
    color: var(--negative);
    border: 1px solid var(--negative);
}

.export-actions {
    display: flex;
    gap: 1rem;
}

.app-footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border-light);
    margin-top: 2rem;
}

/* Animations */
@keyframes fadeInSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.animate-entrance {
    animation: fadeInSlideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .main-grid {
        grid-template-columns: 1fr;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .analytics-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-container {
        padding: 1rem;
    }

    .problem-statement {
        flex-direction: column;
    }

    .header-content {
        padding-right: 0;
        margin-bottom: 1.5rem;
    }

    .header-actions {
        width: 100%;
        flex-direction: row;
        min-width: 0;
    }

    .header-actions .btn {
        flex: 1;
        text-align: center;
        justify-content: center;
    }

    .input-grid {
        grid-template-columns: 1fr;
    }

    .export-actions {
        flex-direction: column;
    }

    .scenario-buttons {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .scenario-buttons .btn {
        flex: 1;
    }
}

@media (max-width: 480px) {
    .header-actions {
        flex-direction: column;
    }

    .scenario-buttons {
        flex-direction: column;
    }
}