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

:root {
    --color-bg: #f8f9fa;
    --color-surface: #ffffff;
    --color-primary: #1a365d;
    --color-primary-light: #2c5282;
    --color-accent: #c53030;
    --color-accent-light: #e53e3e;
    --color-text: #1a202c;
    --color-text-muted: #718096;
    --color-border: #e2e8f0;
    --color-success: #276749;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.05);
    --shadow-lg: 0 4px 6px rgba(0,0,0,0.07), 0 10px 30px rgba(0,0,0,0.1);
    --transition: 0.2s ease;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* Header */
.site-header {
    background: var(--color-primary);
    color: #fff;
    padding: 1.5rem 0;
    text-align: center;
}

.site-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.site-title a {
    color: inherit;
    text-decoration: none;
}

.site-tagline {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 0.25rem;
    font-weight: 300;
}

/* User type selector */
.user-type-selector {
    padding-top: 1.5rem;
}

.toggle-group {
    display: flex;
    background: var(--color-border);
    border-radius: var(--radius);
    padding: 4px;
    gap: 4px;
}

.toggle-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: calc(var(--radius) - 2px);
    background: transparent;
    color: var(--color-text-muted);
    font-family: inherit;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}

.toggle-icon {
    font-size: 1.25rem;
    line-height: 1;
    margin-bottom: 0.2rem;
}

.toggle-text {
    font-size: 0.95rem;
    font-weight: 600;
}

.toggle-desc {
    font-size: 0.7rem;
    font-weight: 400;
    opacity: 0.7;
    margin-top: 0.1rem;
}

.toggle-btn.active {
    background: var(--color-surface);
    color: var(--color-primary);
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

.toggle-btn:hover:not(.active) {
    color: var(--color-text);
    background: rgba(255,255,255,0.4);
}

/* Visitor context banner */
.visitor-context {
    margin-bottom: 1rem;
}

.context-card {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--color-text);
}

.context-card strong {
    color: var(--color-primary);
}

/* State selector */
.state-selector {
    text-align: center;
    padding: 1rem 0 0;
}

.state-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.4rem;
}

.state-select {
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.6rem 2rem 0.6rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%23718096' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    min-width: 200px;
    transition: border-color var(--transition);
}

.state-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.state-rate-info {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 0.4rem;
    min-height: 1.3em;
}

.state-rate-info strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* Main content */
main {
    flex: 1;
    padding: 2rem 0;
}

/* Hero */
.hero {
    text-align: center;
    margin-bottom: 2rem;
}

.hero h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.hero p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    max-width: 500px;
    margin: 0 auto;
}

/* Scan card (standalone above input methods) */
.method-card-scan {
    margin-bottom: 1.25rem;
}

/* Input Methods */
.input-methods {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.method-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition);
}

.method-card:hover {
    box-shadow: var(--shadow-lg);
}

.method-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.method-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.method-card p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Input group */
.input-group {
    display: flex;
    align-items: center;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 1rem;
    transition: border-color var(--transition);
}

.input-group:focus-within {
    border-color: var(--color-primary);
}

.input-prefix {
    padding: 0.75rem 0.75rem;
    background: var(--color-bg);
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 1rem;
    border-right: 1px solid var(--color-border);
}

.input-group input {
    flex: 1;
    border: none;
    padding: 0.75rem;
    font-size: 1.1rem;
    font-family: inherit;
    outline: none;
    min-width: 0;
}

/* Buttons */
.btn {
    display: inline-block;
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-align: center;
    transition: all var(--transition);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

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

.btn-primary:active {
    transform: scale(0.98);
}

.btn-confirm {
    background: var(--color-success);
    color: #fff;
}

.btn-confirm:hover {
    background: #2f855a;
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: #fff;
}

/* Scan preview */
.scan-preview {
    margin-top: 1rem;
    text-align: center;
}

.scan-preview img {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
}

.scan-status {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding: 0.5rem;
}

.scan-status.processing {
    color: var(--color-primary);
    font-weight: 500;
}

.scan-result {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

/* Result section */
.result-section {
    margin-top: 2rem;
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-card {
    background: var(--color-surface);
    border: 2px solid var(--color-accent);
    border-radius: var(--radius);
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

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

.result-category {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.3rem 0.75rem;
    border-radius: 100px;
}

.result-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.result-message {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.result-description {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.result-details {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    padding: 0.75rem;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

/* Scenario section */
.result-scenario {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: #fef2f2;
    border-left: 4px solid var(--color-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    text-align: left;
}

.scenario-header,
.aid-header {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.scenario-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.scenario-conflict {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-style: italic;
    margin-bottom: 0.75rem;
}

.casualty-box {
    padding: 0.75rem;
    background: rgba(197, 48, 48, 0.08);
    border-radius: var(--radius-sm);
}

.casualty-counts {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.casualty-killed {
    font-weight: 700;
    color: var(--color-accent);
    font-size: 0.95rem;
}

.casualty-injured {
    font-weight: 600;
    color: #c05621;
    font-size: 0.95rem;
}

.casualty-detail {
    font-size: 0.8rem;
    color: var(--color-text);
    line-height: 1.5;
}

/* Military Aid section in result */
.result-aid {
    margin-top: 1rem;
    padding: 1.25rem;
    background: #eff6ff;
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    text-align: left;
}

.aid-text {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.aid-scenario-text {
    font-size: 0.85rem;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.aid-casualty-counts {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.25rem;
}

.aid-casualty-detail {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* Breakdown section */
.breakdown-section {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.breakdown-section h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.breakdown-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.breakdown-item:last-child {
    border-bottom: none;
}

.breakdown-source {
    font-weight: 600;
    font-size: 0.875rem;
}

.breakdown-amount {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-accent);
}

.breakdown-explanation {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

/* Footer */
.site-footer {
    background: var(--color-primary);
    color: rgba(255,255,255,0.8);
    text-align: center;
    padding: 1.5rem 0;
    font-size: 0.8rem;
}

.site-footer .disclaimer {
    opacity: 0.6;
    margin-top: 0.25rem;
    font-size: 0.7rem;
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Loading spinner */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 3px solid transparent;
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.breakdown-effective-rate {
    font-size: 0.85rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-top: 0.35rem;
}

.breakdown-brackets {
    margin-top: 0.5rem;
    overflow-x: auto;
}

.bracket-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.bracket-table th,
.bracket-table td {
    padding: 0.35rem 0.5rem;
    text-align: right;
    border-bottom: 1px solid var(--color-border);
}

.bracket-table th {
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.bracket-table td:first-child,
.bracket-table th:first-child {
    text-align: left;
}

.breakdown-total {
    border-top: 2px solid var(--color-primary);
    padding-top: 0.75rem;
    margin-top: 0.25rem;
}

/* Responsive */
@media (min-width: 600px) {
    .input-methods {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.25rem;
    }

    .hero h2 {
        font-size: 1.75rem;
    }

    .result-title {
        font-size: 1.75rem;
    }
}

@media (min-width: 900px) {
    .container {
        max-width: 800px;
    }
}