/* ============================================
   TSB 5.0 - Tools / Calculator Pages
   Tokens imported via tokens.css
   ============================================ */

@import url('../../assets/tokens.css');

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

body {
    font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-void);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.bg-glow {
    position: fixed;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(77, 171, 154, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* Tools index uses wider container */
.container-wide {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* ============================================
   Header
   ============================================ */
.page-header {
    text-align: center;
    padding: 48px 0 40px;
}

.page-header .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg { width: 18px; height: 18px; color: #fff; }

.logo-text {
    font-size: 18px;
    font-weight: 600;
}

h1 {
    font-size: clamp(28px, 5vw, 38px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.page-header p {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
}

/* ============================================
   Calculator Card
   ============================================ */
.calc-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    margin-bottom: 48px;
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

@media (max-width: 600px) {
    .calc-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Inputs
   ============================================ */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.input-group label i {
    width: 14px;
    height: 14px;
    color: var(--text-muted);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper input {
    width: 100%;
    padding: 14px 16px;
    padding-right: 50px;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 16px;
    font-family: 'DM Mono', monospace;
    transition: border-color var(--duration-normal);
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--accent);
}

.input-suffix {
    position: absolute;
    right: 14px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
}

.input-group select {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b6b75' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}

.input-group select:focus {
    outline: none;
    border-color: var(--accent);
}

/* ============================================
   Results
   ============================================ */
.results {
    background: linear-gradient(135deg, rgba(77, 171, 154, 0.1) 0%, rgba(77, 171, 154, 0.02) 100%);
    border: 1px solid rgba(77, 171, 154, 0.2);
    border-radius: var(--radius-md);
    padding: 24px;
}

.results-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(77, 171, 154, 0.15);
}

.results-header i {
    width: 20px;
    height: 20px;
    color: var(--accent);
}

.results-header span {
    font-weight: 600;
    color: var(--text-primary);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

@media (max-width: 500px) {
    .results-grid { grid-template-columns: 1fr; }
}

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

.result-label {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-value {
    font-size: 24px;
    font-weight: 700;
    font-family: 'DM Mono', monospace;
    color: var(--accent);
}

.result-value.highlight {
    font-size: 28px;
}

.result-sub {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ============================================
   Risk Indicator
   ============================================ */
.risk-indicator {
    margin-top: 20px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
}

.risk-indicator i { width: 16px; height: 16px; }

.risk-low {
    background: var(--green-bg);
    border: 1px solid var(--green-border);
    color: var(--green);
}

.risk-medium {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.2);
    color: var(--warn-light);
}

.risk-high {
    background: var(--red-bg);
    border: 1px solid var(--red-border);
    color: var(--red);
}

/* ============================================
   Content Sections
   ============================================ */
.content-section {
    margin-bottom: 48px;
}

.content-section h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.content-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 24px 0 12px;
    color: var(--text-primary);
}

.content-section p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.content-section ul, .content-section ol {
    color: var(--text-secondary);
    margin-left: 24px;
    margin-bottom: 16px;
}

.content-section li {
    margin-bottom: 8px;
}

.formula-box {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    font-family: 'DM Mono', monospace;
    text-align: center;
}

.formula-box .formula {
    font-size: 16px;
    color: var(--accent);
    margin-bottom: 12px;
}

.formula-box .formula-desc {
    font-size: 13px;
    color: var(--text-muted);
    font-family: 'Instrument Sans', sans-serif;
}

/* ============================================
   Example Box
   ============================================ */
.example-box {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 24px;
    margin: 24px 0;
}

.example-box h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.example-box h4 i {
    width: 16px;
    height: 16px;
}

.example-steps {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.example-step {
    display: flex;
    align-items: baseline;
    gap: 12px;
    font-size: 14px;
}

.example-step .step-num {
    width: 20px;
    height: 20px;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    flex-shrink: 0;
}

.example-step .step-text {
    color: var(--text-secondary);
}

.example-step .step-text strong {
    color: var(--text-primary);
}

.example-result {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--glass-border);
    font-family: 'DM Mono', monospace;
    color: var(--accent);
    font-size: 15px;
}

/* ============================================
   FAQ
   ============================================ */
.faq-section {
    margin-bottom: 48px;
}

.faq-item {
    border-bottom: 1px solid var(--glass-border);
    padding: 20px 0;
}

.faq-item:first-child {
    border-top: 1px solid var(--glass-border);
}

.faq-question {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question i {
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    transition: transform var(--duration-normal);
}

.faq-item.open .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    display: none;
}

.faq-item.open .faq-answer {
    display: block;
}

/* ============================================
   Related Tools
   ============================================ */
.related-tools {
    margin-bottom: 48px;
}

.related-tools h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 500px) {
    .tools-grid { grid-template-columns: 1fr; }
}

.tool-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--duration-normal);
}

.tool-link:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
}

.tool-link-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-subtle);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-link-icon i {
    width: 20px;
    height: 20px;
    color: var(--accent);
}

.tool-link-text h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.tool-link-text p {
    font-size: 12px;
    color: var(--text-muted);
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--glass-bg) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    margin-bottom: 48px;
}

.cta-section h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-section p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: 10px;
    text-decoration: none;
    transition: all var(--duration-normal);
}

.cta-btn:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
}

.cta-btn i {
    width: 18px;
    height: 18px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    text-align: center;
    padding: var(--space-8) 0;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 13px;
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

.footer a:hover {
    color: var(--accent);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 12px;
}

/* ============================================
   Tools Index Grid (for index.php)
   ============================================ */
.tools-index-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 48px;
}

.tool-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-decoration: none;
    transition: all var(--duration-normal);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tool-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.tool-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-card-icon i {
    width: 22px;
    height: 22px;
}

.tool-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.tool-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}