:root {
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-soft: #edf4ff;
    --primary: #0f766e;
    --primary-dark: #0b4f4c;
    --secondary: #2563eb;
    --text: #122033;
    --muted: #5f6f85;
    --border: #dfeaf3;
    --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
    --radius: 16px;
    --container: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

a {
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

.portal-container {
    width: min(var(--container), calc(100% - 32px));
    margin: 0 auto;
}

.portal-topbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: var(--shadow);
}

.portal-topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    gap: 16px;
}

.brand {
    font-size: 1.3rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.08em;
}

.portal-nav {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.portal-nav a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.92);
    font-weight: 600;
}

.portal-hero {
    padding: 56px 0 28px;
}

.portal-hero > div {
    background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(15,118,110,0.12));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
}

.eyebrow {
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--secondary);
}

h1 {
    font-size: clamp(2rem, 3vw, 3.2rem);
    line-height: 1.12;
    margin: 0 0 16px;
    color: var(--text);
}

p {
    margin: 0 0 16px;
    color: var(--muted);
}

.portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    padding: 16px 0 80px;
}

.tool-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.tool-badge {
    display: inline-flex;
    align-self: flex-start;
    background: var(--surface-soft);
    color: var(--primary);
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.tool-card h2 {
    margin: 0;
    font-size: 1.2rem;
    line-height: 1.3;
}

.tool-card p {
    flex: 1;
    margin: 0;
}

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    font-weight: 700;
    border-radius: 12px;
    padding: 12px 18px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
    opacity: 0.96;
}

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

.btn-secondary {
    background: var(--secondary);
    color: #fff;
    align-self: flex-start;
}

.portal-footer {
    background: #102033;
    color: rgba(255,255,255,0.85);
    padding: 18px 0;
}

/* Calculadoras laborales y tributarias */
.calculator-page {
    padding: 44px 0 80px;
}

.calculator-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: 28px;
    align-items: center;
    padding: 36px;
    margin-bottom: 26px;
    overflow: hidden;
    position: relative;
    border-radius: 24px;
    color: #fff;
    background: linear-gradient(125deg, #0b4f4c, #0f766e 56%, #1d4ed8);
    box-shadow: var(--shadow);
}

.calculator-hero::after {
    content: 'COP';
    position: absolute;
    right: -10px;
    bottom: -66px;
    color: rgba(255, 255, 255, 0.08);
    font-size: clamp(8rem, 17vw, 16rem);
    font-weight: 800;
    line-height: 1;
    pointer-events: none;
}

.calculator-hero .eyebrow,
.calculator-hero p,
.calculator-hero h1 {
    position: relative;
    z-index: 1;
    color: #fff;
}

.calculator-hero .eyebrow {
    color: #bfdbfe;
}

.calculator-hero h1 {
    max-width: 700px;
    margin-bottom: 12px;
}

.calculator-hero p {
    max-width: 720px;
    color: rgba(255, 255, 255, 0.84);
}

.calculator-hero-note {
    position: relative;
    z-index: 1;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
}

.calculator-hero-note strong {
    display: block;
    margin-bottom: 5px;
}

.calculator-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    gap: 26px;
    align-items: start;
}

.calculator-panel,
.results-panel,
.info-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.calculator-panel {
    padding: 30px;
}

.panel-title {
    margin: 0 0 4px;
    font-size: 1.45rem;
}

.panel-description {
    margin-bottom: 25px;
}

.form-section {
    margin: 0;
    padding: 0;
    border: 0;
}

.form-section + .form-section {
    margin-top: 23px;
    padding-top: 23px;
    border-top: 1px solid var(--border);
}

.form-section legend {
    margin-bottom: 14px;
    color: var(--primary-dark);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 17px;
}

.field {
    display: grid;
    gap: 6px;
}

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

.field label {
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 700;
}

.field-hint {
    color: var(--muted);
    font-size: 0.76rem;
    line-height: 1.35;
}

.checkbox-field {
    gap: 5px;
}

.checkbox-field label {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    cursor: pointer;
}

.checkbox-field input[type="checkbox"] {
    width: 17px;
    min-height: 17px;
    margin: 2px 0 0;
    accent-color: var(--secondary);
}

.field input,
.field select {
    width: 100%;
    min-height: 45px;
    border: 1px solid #c8d7e5;
    border-radius: 10px;
    padding: 10px 12px;
    color: var(--text);
    background: #fff;
    font: inherit;
}

.field input:focus,
.field select:focus {
    outline: 3px solid rgba(37, 99, 235, 0.15);
    border-color: var(--secondary);
}

.money-input-wrap {
    position: relative;
}

.money-input-wrap span {
    position: absolute;
    top: 50%;
    left: 12px;
    transform: translateY(-50%);
    color: var(--muted);
    font-weight: 700;
    pointer-events: none;
}

.money-input-wrap input {
    padding-left: 49px;
}

.submit-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 26px;
}

.calculator-button {
    border: 0;
    cursor: pointer;
}

.form-error {
    display: none;
    color: #b42318;
    font-size: 0.88rem;
    font-weight: 600;
}

.form-error.is-visible {
    display: block;
}

.results-panel {
    position: sticky;
    top: 94px;
    overflow: hidden;
}

.results-header {
    padding: 25px 27px 20px;
    color: #fff;
    background: linear-gradient(135deg, #0f766e, #0b4f4c);
}

.results-header h2 {
    margin: 0 0 4px;
    font-size: 1.35rem;
}

.results-header p {
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.86rem;
}

.result-placeholder {
    padding: 31px 27px;
    color: var(--muted);
}

.result-placeholder i {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    margin-bottom: 12px;
    border-radius: 50%;
    color: var(--primary);
    background: var(--surface-soft);
}

.results-content {
    display: none;
    padding: 22px 27px 27px;
}

.results-content.is-visible {
    display: block;
}

.result-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 19px;
}

.result-meta div {
    padding: 11px;
    border-radius: 10px;
    background: var(--surface-soft);
}

.result-meta span,
.result-row span {
    display: block;
    color: var(--muted);
    font-size: 0.75rem;
}

.result-meta strong {
    color: var(--primary-dark);
    font-size: 0.95rem;
}

.result-list {
    display: grid;
    gap: 0;
}

.result-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 13px 0;
    border-bottom: 1px solid var(--border);
}

.result-row strong {
    text-align: right;
    font-size: 0.95rem;
}

.result-row.is-muted strong {
    color: var(--muted);
    font-size: 0.83rem;
    font-weight: 600;
}

.result-total {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 17px;
    padding: 17px;
    border-radius: 12px;
    color: #fff;
    background: var(--secondary);
}

.result-total span {
    font-weight: 700;
}

.result-total strong {
    text-align: right;
    font-size: 1.15rem;
}

.result-footnote {
    margin: 16px 0 0;
    color: var(--muted);
    font-size: 0.76rem;
    line-height: 1.45;
}

.calculator-notes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 26px;
}

.info-card {
    padding: 22px;
}

.info-card h2 {
    margin: 0 0 9px;
    color: var(--primary-dark);
    font-size: 1.1rem;
}

.info-card p,
.info-card li {
    font-size: 0.86rem;
}

.info-card p:last-child {
    margin-bottom: 0;
}

.info-card ul {
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
}

.info-card a {
    color: var(--secondary);
    font-weight: 700;
}

@media (max-width: 640px) {
    .portal-topbar-inner {
        flex-direction: column;
        justify-content: center;
        padding: 14px 0;
    }

    .portal-nav {
        justify-content: center;
    }

    .portal-hero > div {
        padding: 22px 18px;
    }

    .calculator-page {
        padding-top: 24px;
    }

    .calculator-hero,
    .calculator-panel {
        padding: 24px 18px;
    }

    .calculator-hero,
    .calculator-layout,
    .calculator-notes {
        grid-template-columns: 1fr;
    }

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

    .results-panel {
        position: static;
    }
}

@media (max-width: 900px) {
    .calculator-layout,
    .calculator-notes {
        grid-template-columns: 1fr;
    }

    .results-panel {
        position: static;
    }
}