:root {
    --ink: #111827;
    --muted: #5c6878;
    --line: #dbe7f4;
    --paper: #f7fbff;
    --surface: #ffffff;
    --primary: #2f8df4;
    --primary-dark: #1f63d6;
    --accent: #795bff;
    --success: #137a55;
    --shadow: 0 20px 50px rgba(31, 99, 214, 0.1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid rgba(219, 231, 244, 0.9);
    background: rgba(247, 251, 255, 0.94);
    backdrop-filter: blur(16px);
}

.nav,
.footer-inner,
.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.nav {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 850;
}

.brand img {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    object-fit: cover;
}

.nav-links,
.footer-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 22px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.nav-links a:hover,
.footer-links a:hover,
.text-link:hover {
    color: var(--primary-dark);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 20px;
    border: 0;
    border-radius: 14px;
    background: var(--primary-dark);
    color: white;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 12px 28px rgba(31, 99, 214, 0.2);
}

.button:hover {
    background: #164da9;
}

.app-store-badge {
    display: inline-flex;
    width: 180px;
    flex: 0 0 auto;
    line-height: 0;
    transition: transform 180ms ease, filter 180ms ease;
}

.app-store-badge:hover {
    transform: translateY(-2px);
    filter: drop-shadow(0 10px 16px rgba(15, 47, 114, 0.18));
}

.app-store-badge img {
    display: block;
    width: 100%;
    height: auto;
}

.app-store-badge-compact {
    width: 132px;
}

.button-secondary {
    border: 1px solid var(--line);
    background: white;
    color: var(--primary-dark);
    box-shadow: none;
}

.hero {
    padding: 96px 0 72px;
    text-align: center;
    background:
        radial-gradient(circle at 50% 0%, rgba(97, 200, 255, 0.24), transparent 36%),
        linear-gradient(180deg, #f7fbff 0%, #eef7ff 100%);
}

.eyebrow,
.kicker {
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1 {
    max-width: 880px;
    margin: 12px auto 18px;
    font-size: clamp(42px, 7vw, 72px);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.hero p {
    max-width: 760px;
    margin: 0 auto;
    color: var(--muted);
    font-size: clamp(17px, 2.5vw, 21px);
}

.breadcrumbs {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    column-gap: 0.45rem;
    row-gap: 0.25rem;
    padding: 24px 0 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.4;
}

.breadcrumbs a {
    color: var(--primary-dark);
    font-weight: 700;
}

.breadcrumbs > span[aria-hidden="true"] {
    color: #91a0b2;
}

.section {
    padding: 72px 0;
}

.section-alt {
    border-block: 1px solid var(--line);
    background: white;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 34px;
}

.section-heading.center {
    margin-inline: auto;
    text-align: center;
}

h2 {
    margin: 0 0 12px;
    font-size: clamp(30px, 5vw, 46px);
    line-height: 1.04;
    letter-spacing: -0.035em;
}

h3 {
    margin: 0 0 8px;
    font-size: 22px;
    line-height: 1.18;
}

p {
    margin: 0 0 18px;
}

.lede,
.section-heading p,
.card p,
.article p,
.article li,
.fine-print {
    color: var(--muted);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 26px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.card-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    margin-bottom: 22px;
    border-radius: 15px;
    background: #eaf4ff;
    color: var(--primary-dark);
    font-size: 22px;
    font-weight: 900;
}

.card .text-link {
    margin-top: auto;
    padding-top: 18px;
    color: var(--primary-dark);
    font-weight: 850;
}

.blog-filters {
    display: flex;
    gap: 10px;
    margin: -4px 0 30px;
    padding-bottom: 4px;
    overflow-x: auto;
    scrollbar-width: thin;
}

.blog-filter {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    gap: 7px;
    min-height: 44px;
    padding: 0 18px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: white;
    color: var(--ink);
    font: inherit;
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: border-color 160ms ease, background 160ms ease, color 160ms ease, transform 160ms ease;
}

.blog-filter:hover {
    border-color: #a9bfd6;
    transform: translateY(-1px);
}

.blog-filter:focus-visible {
    outline: 3px solid rgba(47, 141, 244, 0.22);
    outline-offset: 2px;
}

.blog-filter span {
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.blog-filter.is-active {
    border-color: var(--ink);
    background: var(--ink);
    color: white;
}

.blog-filter.is-active span {
    color: rgba(255, 255, 255, 0.68);
}

.blog-card-grid > [hidden] {
    display: none;
}

.filter-status {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.comparison-intro {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 30px;
    align-items: stretch;
}

.verdict,
.callout {
    padding: 30px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: white;
    box-shadow: var(--shadow);
}

.verdict strong {
    display: block;
    margin-bottom: 8px;
    color: var(--success);
    font-size: 13px;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: white;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    background: #eef7ff;
    font-size: 14px;
}

tr:last-child td {
    border-bottom: 0;
}

.best-for {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.check-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.check-list li {
    position: relative;
    margin: 12px 0;
    padding-left: 28px;
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 900;
}

.calculator-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 24px;
    align-items: start;
}

.calculator-panel,
.result-panel {
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: white;
    box-shadow: var(--shadow);
}

.field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.field {
    display: grid;
    gap: 7px;
}

.field.full {
    grid-column: 1 / -1;
}

label {
    font-size: 14px;
    font-weight: 800;
}

input,
select {
    width: 100%;
    min-height: 48px;
    padding: 10px 13px;
    border: 1px solid #c8d8e8;
    border-radius: 12px;
    background: white;
    color: var(--ink);
    font: inherit;
}

input:focus,
select:focus {
    outline: 3px solid rgba(47, 141, 244, 0.18);
    border-color: var(--primary);
}

.result-value {
    margin: 8px 0;
    color: var(--primary-dark);
    font-size: clamp(38px, 6vw, 62px);
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 1;
}

.result-list {
    display: grid;
    gap: 12px;
    margin-top: 22px;
}

.result-row {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding: 14px 0;
    border-top: 1px solid var(--line);
}

.result-row span {
    color: var(--muted);
}

.result-row strong {
    text-align: right;
}

.budget-input-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(240px, 0.56fr) minmax(150px, 0.34fr);
    align-items: end;
    gap: 28px;
    padding: 30px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: white;
    box-shadow: var(--shadow);
}

.budget-input-panel h2 {
    margin: 6px 0 8px;
    font-size: clamp(28px, 4vw, 40px);
}

.budget-input-panel .lede {
    margin: 0;
}

.budget-income-field input {
    font-size: 18px;
    font-weight: 750;
}

.budget-total {
    display: grid;
    gap: 3px;
    min-height: 72px;
    align-content: center;
    padding: 12px 16px;
    border-radius: 14px;
    background: #eef7ff;
}

.budget-total span {
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.budget-total strong {
    color: var(--primary-dark);
    font-size: 25px;
    line-height: 1.1;
}

.budget-results-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 30px;
    margin: 58px 0 26px;
}

.budget-results-heading h2 {
    margin: 6px 0 0;
}

.budget-results-heading p {
    max-width: 350px;
    margin: 0 0 5px;
    color: var(--muted);
    text-align: right;
}

.budget-category-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.budget-category {
    min-height: 390px;
    padding: 30px;
    border: 1px solid var(--category-border);
    border-radius: 20px;
    background: white;
    box-shadow: 0 14px 34px rgba(31, 99, 214, 0.07);
}

.budget-category-needs {
    --category: #d92d52;
    --category-soft: #fff0f3;
    --category-border: #ffcbd6;
}

.budget-category-wants {
    --category: #b96b00;
    --category-soft: #fff7e8;
    --category-border: #ffe0a8;
}

.budget-category-savings {
    --category: #1f63d6;
    --category-soft: #edf4ff;
    --category-border: #c6d9ff;
}

.budget-category-title {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
}

.budget-category-icon {
    width: 48px;
    height: 48px;
    display: grid;
    flex: 0 0 auto;
    place-items: center;
    border-radius: 14px;
    background: var(--category-soft);
    color: var(--category);
    font-size: 25px;
    font-weight: 900;
}

.budget-category-title h3 {
    margin: 0 0 2px;
    font-size: 23px;
}

.budget-category-title h3 span {
    font-weight: 650;
}

.budget-category-title strong {
    color: var(--category);
    font-size: 20px;
}

.budget-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 8px;
}

.budget-chips span {
    padding: 7px 12px;
    border: 1px solid var(--category-border);
    border-radius: 999px;
    background: var(--category-soft);
    color: var(--ink);
    font-size: 14px;
    line-height: 1.25;
}

.budget-guide-table tbody th {
    color: var(--primary-dark);
    font-size: 16px;
}

.budget-guide-table td:nth-child(2) {
    font-weight: 900;
}

.budget-advice-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 26px;
}

.budget-advice-grid .callout {
    box-shadow: none;
}

.budget-advice-grid p,
.budget-advice-grid ol {
    margin-bottom: 0;
    color: var(--muted);
}

.article {
    width: min(780px, calc(100% - 32px));
    margin: 0 auto;
    font-size: 17px;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0 0 30px;
    color: var(--muted);
    font-size: 14px;
}

.article-meta span:not(:last-child)::after {
    content: "·";
    margin-left: 10px;
    color: #9aa9b9;
}

.article-intro {
    margin-bottom: 34px;
    color: var(--ink);
    font-size: 20px;
    line-height: 1.55;
}

.post-note {
    margin: 30px 0;
    padding: 22px 24px;
    border-left: 4px solid var(--primary);
    border-radius: 0 14px 14px 0;
    background: #eef7ff;
}

.article h2 {
    margin-top: 54px;
    font-size: clamp(28px, 4vw, 38px);
}

.article h3 {
    margin-top: 30px;
}

.article ul,
.article ol {
    padding-left: 24px;
}

.article a {
    color: var(--primary-dark);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.faq {
    display: grid;
    gap: 12px;
}

details {
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: white;
}

summary {
    cursor: pointer;
    font-weight: 850;
}

details p {
    margin: 12px 0 0;
    color: var(--muted);
}

.cta {
    padding: 70px 0;
}

.cta-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    padding: 42px;
    border-radius: 24px;
    background: linear-gradient(135deg, #1f63d6, #795bff);
    color: white;
    box-shadow: 0 26px 60px rgba(31, 99, 214, 0.25);
}

.cta-box h2 {
    max-width: 700px;
}

.cta-box p {
    max-width: 650px;
    margin: 0;
    color: rgba(255, 255, 255, 0.82);
}

.cta-box .button {
    flex: 0 0 auto;
    background: white;
    color: var(--primary-dark);
}

.site-footer {
    padding: 34px 0;
    border-top: 1px solid var(--line);
    background: white;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    color: var(--muted);
    font-size: 14px;
}

@media (max-width: 850px) {
    .nav-links > a:not(.button):not(.app-store-badge) {
        display: none;
    }

    .card-grid,
    .comparison-intro,
    .best-for,
    .calculator-layout,
    .budget-category-grid {
        grid-template-columns: 1fr;
    }

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

    .budget-input-panel > div:first-child {
        grid-column: 1 / -1;
    }

    .budget-category {
        min-height: 0;
    }

    .hero {
        padding: 72px 0 56px;
    }

    .cta-box,
    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .nav {
        min-height: 64px;
    }

    .nav .button {
        min-height: 40px;
        padding-inline: 14px;
        font-size: 13px;
    }

    .nav .app-store-badge-compact {
        width: 120px;
    }

    .hero h1 {
        font-size: 43px;
    }

    .section {
        padding: 54px 0;
    }

    .card-grid,
    .field-grid,
    .budget-input-panel,
    .budget-advice-grid {
        grid-template-columns: 1fr;
    }

    .budget-input-panel > div:first-child {
        grid-column: auto;
    }

    .budget-results-heading {
        align-items: flex-start;
        flex-direction: column;
        margin-top: 46px;
    }

    .budget-results-heading p {
        text-align: left;
    }

    .budget-category {
        padding: 24px;
    }

    .field.full {
        grid-column: auto;
    }

    .card,
    .calculator-panel,
    .result-panel,
    .verdict,
    .callout {
        padding: 22px;
    }

    .cta-box {
        padding: 30px 24px;
    }
}