/* ==========================================================================
   Walking Calculator — Modern SaaS Design System
   Palette: Emerald Green primary, white/light-gray surfaces, dark type.
   Type: Plus Jakarta Sans throughout.
   ========================================================================== */

:root {
    --color-primary: #16a34a;
    --color-primary-dark: #15803d;
    --color-primary-light: #dcfce7;
    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-ink: #0F172A;
    --color-ink-muted: #64748B;
    --color-border: #E2E8F0;

    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);

    /* Icon accent colors, one per core calculator card */
    --icon-green-bg: #dcfce7;
    --icon-green-ink: #16a34a;
    --icon-blue-bg: #dbeafe;
    --icon-blue-ink: #2563eb;
    --icon-purple-bg: #ede9fe;
    --icon-purple-ink: #7c3aed;
    --icon-orange-bg: #ffedd5;
    --icon-orange-ink: #ea580c;
}

html {
    overflow-x: hidden;
    width: 100%;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background-color: var(--color-bg);
    color: var(--color-ink);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    width: 100%;
}

img, svg {
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-body);
    font-weight: 800;
    color: var(--color-ink);
    letter-spacing: -0.02em;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}
a:hover {
    color: var(--color-primary-dark);
}

.text-secondary {
    color: var(--color-ink-muted) !important;
}

.section {
    padding: 4rem 0;
}
@media (max-width: 575.98px) {
    .section { padding: 2.75rem 0; }
}

/* ---------- Header ---------- */
.site-header {
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
}
.site-header .navbar-brand {
    font-weight: 800;
    color: var(--color-ink) !important;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-primary), #059669);
    display: flex;
    align-items: center;
    justify-content: center;
}
.site-header .nav-link {
    color: var(--color-ink-muted);
    font-weight: 600;
    font-size: 0.94rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
}
.site-header .nav-link:hover,
.site-header .nav-link.active {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}
.lang-selector {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-ink-muted);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.4rem 0.9rem;
    background: var(--color-surface);
}

.site-header .dropdown-menu {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 0.5rem;
}
.site-header .dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
}
.site-header .dropdown-item:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}

/* ---------- Trust badges ---------- */
.trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.trust-badge {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.trust-badge-icon {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.trust-badge-title {
    font-weight: 700;
    font-size: 0.85rem;
    line-height: 1.2;
}
.trust-badge-sub {
    font-size: 0.78rem;
    color: var(--color-ink-muted);
}

/* Half-screen mobile off-canvas menu */
@media (max-width: 991.98px) {
    .mobile-menu-panel {
        width: 65vw !important;
        min-width: 280px;
    }
}
.mobile-menu-panel {
    background-color: var(--color-surface);
}
.mobile-menu-panel .nav-link {
    color: var(--color-ink);
    font-weight: 600;
    padding: 0.9rem 0.25rem;
    border-bottom: 1px solid var(--color-border);
}

/* ---------- Hero (two-column: text left, illustration right) ---------- */
.hero-section {
    position: relative;
    padding: 2.5rem 0 2rem;
    overflow: hidden;
    background:
        radial-gradient(50% 60% at 90% 10%, rgba(22, 163, 74, 0.06), transparent);
}
.hero-section .row {
    align-items: flex-start;
}
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
    border-radius: 999px;
    padding: 0.4rem 1rem;
    margin-bottom: 1.25rem;
}
.hero-title {
    font-size: clamp(2rem, 4.2vw, 2.9rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
}
.hero-title .accent {
    color: var(--color-primary);
}
.hero-subtitle {
    color: var(--color-ink-muted);
    font-size: 1.05rem;
    max-width: 480px;
    margin-bottom: 0;
}
.hero-illustration {
    width: 100%;
    height: auto;
}

/* Centered hero variant, used on calculator pages above the form */
.hero-section.hero-centered {
    text-align: center;
}
.hero-section.hero-centered .hero-title,
.hero-section.hero-centered .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
}

/* ---------- Calculator cards (colored icon variants) ---------- */
.calc-card-icon.icon-blue { background: var(--icon-blue-bg); color: var(--icon-blue-ink); }
.calc-card-icon.icon-purple { background: var(--icon-purple-bg); color: var(--icon-purple-ink); }
.calc-card-icon.icon-orange { background: var(--icon-orange-bg); color: var(--icon-orange-ink); }

/* ---------- Buttons ---------- */
.btn-brand {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    font-weight: 700;
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.4rem;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
.btn-brand:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.btn-outline-secondary {
    border-color: var(--color-border);
    color: var(--color-ink-muted);
    border-radius: var(--radius-sm);
}
.btn-outline-secondary:hover {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
}

/* ---------- Calculator cards (hero grid) ---------- */
.calc-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1.75rem 1.5rem;
    height: 100%;
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.calc-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(22, 163, 74, 0.35);
}
.calc-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-dark);
    margin-bottom: 1.1rem;
}
.calc-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}
.calc-card p {
    color: var(--color-ink-muted);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
}
.calc-card .btn {
    width: 100%;
    justify-content: center;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

/* ---------- Content blocks (SEO section, no long paragraphs) ---------- */
.content-block {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    height: 100%;
}
.content-block-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}
.content-block h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}
.content-block p {
    color: var(--color-ink-muted);
    font-size: 0.9rem;
    margin-bottom: 0;
}

.section-heading {
    text-align: center;
    max-width: 620px;
    margin: 0 auto 2.5rem;
}
.section-heading h2 {
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    margin-bottom: 0.6rem;
}
.section-heading p {
    color: var(--color-ink-muted);
    margin-bottom: 0;
}

/* Feature strip — light green band with small icon+label pairs */
.feature-strip {
    background: var(--color-primary-light);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
}
.feature-strip-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}
.feature-strip-icon {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--color-surface);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.feature-strip-title {
    font-weight: 700;
    font-size: 0.85rem;
    line-height: 1.2;
}
.feature-strip-sub {
    font-size: 0.76rem;
    color: var(--color-ink-muted);
}

/* Benefit cards (2x2 "why use this" grid) */
.benefit-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    height: 100%;
}
.benefit-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.benefit-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}
.benefit-card p {
    color: var(--color-ink-muted);
    font-size: 0.85rem;
    margin-bottom: 0;
}

/* CTA banner */
.cta-banner {
    background: var(--color-primary-light);
    border-radius: var(--radius-lg);
    padding: 1.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}
.cta-banner-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-surface);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
@media (max-width: 575.98px) {
    .cta-banner { flex-direction: column; text-align: center; }
}

/* ---------- Related calculators / blog cards ---------- */
/* Compact related-calculator card (icon circle + name), used on calculator pages */
.related-card-compact {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.1rem 1.25rem;
    min-width: 150px;
    flex: 1 1 150px;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.related-card-compact:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(22, 163, 74, 0.35);
}

.related-card, .blog-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    height: 100%;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.related-card:hover, .blog-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.related-card-body, .blog-card-body {
    padding: 1.5rem;
}
.related-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}
.related-card p {
    color: var(--color-ink-muted);
    font-size: 0.88rem;
    margin-bottom: 0;
}
.blog-card-image {
    height: 150px;
    background: linear-gradient(135deg, var(--color-primary-light), #f0fdf4);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}
.blog-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}
.blog-card p {
    color: var(--color-ink-muted);
    font-size: 0.88rem;
}
.blog-empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-ink-muted);
}

/* ---------- Calculator form (individual pages) — two-column layout ---------- */
/* Centered form by default; results column only appears once there's a result */
.calc-layout {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 2rem;
    flex-wrap: wrap;
}
.calc-layout .calc-form-col {
    flex: 1 1 560px;
    max-width: 560px;
    min-width: 0;
}
.calc-layout .calc-results-col {
    flex: 1 1 480px;
    max-width: 480px;
    min-width: 0;
    display: none;
}
.calc-layout.has-result .calc-results-col {
    display: block;
}
@media (max-width: 991.98px) {
    .calc-layout .calc-form-col,
    .calc-layout .calc-results-col {
        max-width: 100%;
        flex-basis: 100%;
    }
}

.calculator-panel {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    background: var(--color-surface);
    padding: 1.75rem;
    height: 100%;
}
.calculator-panel h2 {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
}

.form-step-label {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-weight: 700;
    font-size: 0.92rem;
    margin-bottom: 0.6rem;
    margin-top: 1.25rem;
}
.form-step-label:first-child {
    margin-top: 0;
}
.form-step-number {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 800;
    flex-shrink: 0;
}

.input-icon-addon {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    border: 1px solid var(--color-border);
    border-right: none;
}

.tip-box {
    display: flex;
    gap: 0.65rem;
    align-items: flex-start;
    background: var(--color-primary-light);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    margin: 1.25rem 0;
    font-size: 0.85rem;
    color: var(--color-primary-dark);
}

/* ---------- Results panel ---------- */
.results-panel-primary {
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    text-align: center;
    padding: 1.5rem;
    margin-bottom: 1.25rem;
}
.results-panel-primary-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 0.5rem;
}
.results-panel-primary-value {
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--color-ink);
}
.results-panel-primary-sub {
    font-size: 0.85rem;
    color: var(--color-ink-muted);
    margin-top: 0.25rem;
}
.results-panel-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}
.results-panel-row:last-of-type {
    border-bottom: none;
}
.results-panel-row-label {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--color-ink-muted);
}
.results-panel-row-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.results-panel-row-value {
    font-weight: 700;
    color: var(--color-ink);
}

.result-card {
    display: none;
}
.result-card.is-visible {
    display: block;
}

.error-alert {
    display: none;
}
.error-alert.is-visible {
    display: block;
}

.feature-row .feature-item {
    text-align: center;
    padding: 1.5rem 1rem;
}
.feature-row .feature-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.75rem;
}

.calculator-page-content {
    max-width: none;
}
.calculator-page-content h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 2.25rem;
}
.calculator-page-content p {
    color: var(--color-ink-muted);
}
.calculator-page-content strong {
    color: var(--color-ink);
}

.faq-section, .related-section {
    max-width: none;
}

.accordion-item {
    border-color: var(--color-border);
    border-radius: var(--radius-md) !important;
    margin-bottom: 0.75rem;
    overflow: hidden;
}
.accordion-button {
    font-weight: 600;
}
.accordion-button:not(.collapsed) {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
}
.accordion-button:focus {
    box-shadow: 0 0 0 0.2rem var(--color-primary-light);
}

/* ---------- Footer (simple horizontal: copyright left, legal links right) ---------- */
.site-footer {
    background-color: var(--color-ink);
    color: #94A3B8;
    padding: 0.65rem 0;
    margin-top: 2.5rem;
    line-height: 1.3;
    font-size: 0.8rem;
}
.site-footer .footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.site-footer a {
    color: #94A3B8;
    text-decoration: none;
    font-size: 0.85rem;
}
.site-footer a:hover {
    color: #fff;
}
.site-footer .footer-legal-links {
    display: flex;
    gap: 1.1rem;
    flex-wrap: wrap;
}

@media (max-width: 575.98px) {
    .site-footer .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

/* ---------- Admin (unchanged palette, kept separate) ---------- */
:root {
    --admin-sidebar-bg: #111827;
    --admin-sidebar-bg-hover: #1f2937;
    --admin-sidebar-text: #9ca3af;
    --admin-sidebar-text-active: #ffffff;
    --admin-accent: #2563eb;
    --admin-content-bg: #f8fafc;
}