/* ── DosCifras · styles.css ─────────────────────────────────────────────────── */

/* ── Tokens ──────────────────────────────────────────────────────────────────── */
:root {
  --blue:        #1B4FD8;
  --blue-dark:   #1540B0;
  --blue-light:  #EEF2FF;
  --green:       #10B981;
  --green-dark:  #059669;
  --green-light: #ECFDF5;
  --bg:          #FFFFFF;
  --bg-subtle:   #F9FAFB;
  --border:      #E5E7EB;
  --text:        #1F2937;
  --text-muted:  #6B7280;
  --text-light:  #9CA3AF;
  --red:         #EF4444;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.07);
  --shadow-md:   0 4px 12px rgba(0,0,0,.09);
  --radius:      10px;
  --radius-sm:   6px;
  --header-h:    64px;
  --max-w:       1120px;
}

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

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

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

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, select { font: inherit; }

/* ── Layout helpers ──────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ── Header ──────────────────────────────────────────────────────────────────── */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}

.header-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Logo */
.logo {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -.02em;
  flex-shrink: 0;
  line-height: 1;
}
.logo-dos    { color: var(--blue);  }
.logo-cifras { color: var(--green); }

/* Nav */
.header-nav {
  display: flex;
  gap: .25rem;
  flex: 1;
}

.nav-link {
  padding: .35rem .75rem;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color .15s, background .15s;
  white-space: nowrap;
}
.nav-link:hover          { color: var(--text); background: var(--bg-subtle); }
.nav-link--active        { color: var(--blue); background: var(--blue-light); }

/* Country selector */
.header-right {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-shrink: 0;
}

.country-select {
  padding: .35rem .6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  font-size: .875rem;
  cursor: pointer;
  max-width: 160px;
}
.country-select:focus { outline: 2px solid var(--blue); outline-offset: 2px; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .35rem;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .2s;
}

@media (max-width: 700px) {
  .hamburger { display: flex; }
  .header-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: .75rem 1.25rem 1rem;
    gap: .25rem;
    display: none;
    box-shadow: var(--shadow-md);
  }
  .header-nav--open { display: flex; }
  .nav-link { font-size: 1rem; padding: .6rem .75rem; }
}

/* ── Main ────────────────────────────────────────────────────────────────────── */
#main-content { flex: 1; }

/* ── Hero ────────────────────────────────────────────────────────────────────── */
.hero {
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
  padding: 4rem 1.25rem 3.5rem;
  text-align: center;
}
.hero-eyebrow {
  font-size: .8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--blue);
  margin-bottom: .75rem;
}
.hero-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: .875rem;
}
.hero-sub {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 480px;
  margin-inline: auto;
}

/* ── Tool cards (homepage) ───────────────────────────────────────────────────── */
.tools-grid {
  padding-top: 3rem;
  padding-bottom: 4rem;
}
.section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 1.25rem;
}
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card--tool {
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.card--tool:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card-icon        { margin-bottom: .5rem; line-height: 0; }
.card-icon svg    { display: block; }
.card-title { font-size: 1.0625rem; font-weight: 600; }
.card-desc  { font-size: .875rem; color: var(--text-muted); flex: 1; }
.card-cta   { font-size: .875rem; font-weight: 600; color: var(--blue); margin-top: .25rem; }

/* ── Tool page layout ────────────────────────────────────────────────────────── */
.tool-page {
  padding-top: 2rem;
  padding-bottom: 4rem;
}
.tool-header   { margin-bottom: 2rem; }
.breadcrumb {
  font-size: .8125rem;
  color: var(--text-muted);
  display: inline-block;
  margin-bottom: .75rem;
}
.breadcrumb:hover { color: var(--blue); }
.tool-title {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -.025em;
  line-height: 1.2;
  margin-bottom: .5rem;
}
.tool-sub { font-size: 1rem; color: var(--text-muted); }

.tool-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 780px) {
  .tool-layout { grid-template-columns: 1fr; }
}

/* ── Form elements ───────────────────────────────────────────────────────────── */
.tool-inputs { padding: 1.75rem; display: flex; flex-direction: column; gap: 1.25rem; }

.field-label {
  display: block;
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .35rem;
}

.input-currency {
  position: relative;
  display: flex;
  align-items: center;
}
.currency-symbol {
  position: absolute;
  left: .875rem;
  font-size: 1rem;
  color: var(--text-muted);
  pointer-events: none;
  font-weight: 500;
}
.field-input {
  width: 100%;
  padding: .75rem .875rem .75rem 2rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text);
  background: var(--bg);
  transition: border-color .15s;
  -moz-appearance: textfield;
}
.field-input::-webkit-outer-spin-button,
.field-input::-webkit-inner-spin-button { -webkit-appearance: none; }
.field-input:focus { outline: none; border-color: var(--blue); }

.field-select {
  width: 100%;
  padding: .65rem .875rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .9375rem;
  color: var(--text);
  background: var(--bg);
  cursor: pointer;
  transition: border-color .15s;
}
.field-select:focus { outline: none; border-color: var(--blue); }

.field-note {
  font-size: .75rem;
  color: var(--text-light);
  line-height: 1.5;
  margin-top: -.25rem;
}

/* Mode switch (Neto/Bruto, Anual/Mensual) */
.iva-mode-switch {
  display: flex;
  gap: .5rem;
}
.mode-btn {
  flex: 1;
  padding: .5rem .75rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg);
  transition: all .15s;
}
.mode-btn:hover          { border-color: var(--blue); color: var(--blue); }
.mode-btn--active        { border-color: var(--blue); background: var(--blue-light); color: var(--blue); }

/* ── Refinement block (IRPF) ─────────────────────────────────────────────────── */
.refinement { border-top: 1px solid var(--border); padding-top: 1rem; margin-top: .25rem; }
.refine-toggle {
  font-size: .875rem;
  font-weight: 500;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: .35rem;
  margin-bottom: .75rem;
}
.refine-toggle:hover { color: var(--blue-dark); }
.refine-body { display: flex; flex-direction: column; gap: 1rem; }

/* ── Result card ─────────────────────────────────────────────────────────────── */
.result-placeholder {
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--text-light);
  font-size: .9375rem;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
}

.result-card { padding: 1.75rem; }

.result-main {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.result-label {
  font-size: .8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  margin-bottom: .5rem;
}
.result-value {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--green);
  line-height: 1.1;
}

.result-secondary { display: flex; flex-direction: column; gap: .5rem; }
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .9375rem;
  gap: 1rem;
}
.result-row span:first-child { color: var(--text-muted); }
.result-row strong            { font-weight: 600; }
.result-deduction             { color: var(--red); font-weight: 500; }
.result-row--total            { border-top: 1px solid var(--border); padding-top: .5rem; margin-top: .25rem; font-weight: 600; }
.result-divider               { height: 1px; background: var(--border); margin: .25rem 0; }
.result-disclaimer {
  font-size: .8125rem;
  color: var(--text-light);
  margin-top: 1rem;
  line-height: 1.5;
}

/* ── Tramos table ────────────────────────────────────────────────────────────── */
.tramos-table {
  margin-top: 1.5rem;
  padding: 1.5rem;
  overflow-x: auto;
}
.tramos-title {
  font-size: .875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .25rem;
}
.tramos-base {
  font-size: .8125rem;
  color: var(--text-light);
  margin-bottom: 1rem;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
th {
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: .5rem .75rem;
  border-bottom: 1px solid var(--border);
}
td {
  padding: .6rem .75rem;
  border-bottom: 1px solid var(--bg-subtle);
}
tr:last-child td { border-bottom: none; }

/* ── Aviso régimen foral ─────────────────────────────────────────────────────── */
.foral-notice {
  padding: 1.75rem;
  background: var(--blue-light);
  border-color: var(--blue);
}
.foral-notice__tag {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--blue);
  margin-bottom: .5rem;
}
.foral-notice__title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .625rem;
}
.foral-notice__body {
  font-size: .9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}
.foral-notice__links {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.foral-notice__link {
  display: inline-flex;
  align-items: center;
  font-size: .9375rem;
  font-weight: 600;
  color: var(--blue);
}
.foral-notice__link:hover { color: var(--blue-dark); }

/* ── Disclaimer box ──────────────────────────────────────────────────────────── */
.disclaimer-box {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: #FFFBEB;
  border: 1px solid #FDE68A;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  color: #92400E;
}

/* ── 404 ─────────────────────────────────────────────────────────────────────── */
.error-page {
  padding: 5rem 1.25rem;
  text-align: center;
}
.error-page h1 {
  font-size: 5rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* ── Primary button ──────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: .65rem 1.5rem;
  background: var(--blue);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .9375rem;
  transition: background .15s;
  margin-top: 1rem;
}
.btn-primary:hover { background: var(--blue-dark); }

/* ── Footer ──────────────────────────────────────────────────────────────────── */
#site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
  padding: 2rem 1.25rem;
}
.footer-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-copy {
  font-size: .8125rem;
  color: var(--text-light);
}
.footer-links {
  display: flex;
  gap: 1.25rem;
}
.footer-links a {
  font-size: .8125rem;
  color: var(--text-muted);
}
.footer-links a:hover { color: var(--blue); }

/* ── Focus visible ───────────────────────────────────────────────────────────── */
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* ── Scrollbar (webkit) ──────────────────────────────────────────────────────── */
::-webkit-scrollbar       { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-subtle); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── FAQ section ─────────────────────────────────────────────────────────────── */
.faq-section {
  margin-top: 3rem;
}

.faq-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.faq-question {
  font-size: .95rem;
  font-weight: 500;
  color: var(--text);
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-question::-webkit-details-marker { display: none; }

.faq-question::after {
  content: '▾';
  font-size: .8rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform .2s;
}

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

.faq-answer {
  padding: 0 1.25rem 1rem;
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.faq-answer p { margin: 0; }