/* ============================================================
   PlanAmigo – Estilos principales
   ============================================================ */

/* ---- Variables ---- */
:root {
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-text: #1a1a2e;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --radius: 14px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.14);
  --transition: 0.2s ease;
  --max-width: 1120px;

  /* Brand colours */
  --bbva: #004481;          --bbva-color: #fff;
  --ing: #ff6200;           --ing-color: #fff;
  --myinvestor: #0b7fcb;    --myinvestor-color: #fff;
  --revolut: #191c1f;       --revolut-color: #fff;
  --simyo: #fa6400;         --simyo-color: #fff;
  --openbank: #191c1f;      --openbank-color: #fff;
  --raisin: #00796b;        --raisin-color: #fff;
  --traderepublic: #ffffff; --traderepublic-color: #1a1a2e;
  --paypal: #003087;        --paypal-color: #fff;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
}

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

a { color: var(--color-primary); }

/* ---- Utility ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: 9px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn:active { transform: scale(0.97); }

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.btn-hero {
  padding: 14px 32px;
  font-size: 17px;
  margin-top: 24px;
}

.btn-full { width: 100%; }

.section-title {
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
}

/* ============================================================
   Site Header
   ============================================================ */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  padding: 18px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.header-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-primary);
  white-space: nowrap;
}

.header-tagline {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #0ea5e9 100%);
  color: #fff;
  padding: 72px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(24px, 5vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  max-width: 760px;
  margin: 0 auto;
}

.hero-body {
  font-size: clamp(15px, 2vw, 18px);
  max-width: 680px;
  margin: 20px auto 0;
  opacity: 0.92;
}

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

.hero .btn-primary:hover {
  background: #f0f6ff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* ============================================================
   How It Works
   ============================================================ */
.how-it-works {
  padding: 64px 0;
  background: var(--color-surface);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
}

.step {
  text-align: center;
  padding: 28px 20px;
  background: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.step-icon {
  font-size: 36px;
  display: block;
  margin-bottom: 14px;
}

.step h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ============================================================
   Plans / Cards
   ============================================================ */
.plans {
  padding: 64px 0;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 28px;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* Card header bands */
.card-header {
  padding: 24px 24px 20px;
  color: #fff;
  position: relative;
}

.card-bbva      { background: var(--bbva);          color: var(--bbva-color); }
.card-ing       { background: var(--ing);           color: var(--ing-color); }
.card-myinvestor{ background: var(--myinvestor);    color: var(--myinvestor-color); }
.card-revolut   { background: var(--revolut);       color: var(--revolut-color); }
.card-simyo     { background: var(--simyo);         color: var(--simyo-color); }
.card-openbank  { background: var(--openbank);      color: var(--openbank-color); }
.card-raisin    { background: var(--raisin);        color: var(--raisin-color); }
.card-traderepublic { background: var(--traderepublic); color: var(--traderepublic-color); border-bottom: 1px solid var(--color-border); }
.card-paypal        { background: var(--paypal);        color: var(--paypal-color); }

.card-badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  background: rgba(255,255,255,0.22);
  padding: 3px 10px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 10px;
}

.card-traderepublic .card-badge {
  background: rgba(0,0,0,0.08);
}

.card-name {
  font-size: 26px;
  font-weight: 800;
}

.card-body {
  padding: 20px 24px;
  flex: 1;
}

.card-reward {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.card-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.65;
}

.card-benefits {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card-benefits li {
  font-size: 13px;
  color: var(--color-text);
}

.card-footer {
  padding: 16px 24px 24px;
}

/* Request button – uses the brand colour of each card */
.btn-request {
  width: 100%;
  padding: 13px;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  border: none;
  border-radius: 9px;
  cursor: pointer;
  transition: filter var(--transition), transform var(--transition);
}

.btn-request[data-color="bbva"]           { background: var(--bbva);          color: var(--bbva-color); }
.btn-request[data-color="ing"]            { background: var(--ing);           color: var(--ing-color); }
.btn-request[data-color="myinvestor"]     { background: var(--myinvestor);    color: var(--myinvestor-color); }
.btn-request[data-color="revolut"]        { background: var(--revolut);       color: var(--revolut-color); }
.btn-request[data-color="simyo"]          { background: var(--simyo);         color: var(--simyo-color); }
.btn-request[data-color="openbank"]       { background: var(--openbank);      color: var(--openbank-color); }
.btn-request[data-color="raisin"]         { background: var(--raisin);        color: var(--raisin-color); }
.btn-request[data-color="traderepublic"]  { background: var(--traderepublic); color: var(--traderepublic-color); border: 1px solid var(--color-border); }
.btn-request[data-color="paypal"]         { background: var(--paypal);        color: var(--paypal-color); }

.btn-request:hover  { filter: brightness(1.12); }
.btn-request:active { transform: scale(0.97); }

.card-legal {
  display: block;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-muted);
  text-decoration: none;
  margin-top: 10px;
  opacity: 0.75;
  transition: opacity var(--transition);
}

.card-legal:hover {
  opacity: 1;
  text-decoration: underline;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq {
  padding: 64px 0;
  background: var(--color-surface);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-item summary {
  padding: 18px 22px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  user-select: none;
}

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

.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 300;
  color: var(--color-text-muted);
  transition: transform var(--transition);
}

.faq-item[open] > summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-item p {
  padding: 0 22px 18px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.85);
  padding: 40px 0;
  text-align: center;
}

.site-footer p { margin-bottom: 8px; font-size: 15px; }

.footer-legal {
  font-size: 12px !important;
  opacity: 0.6;
  max-width: 640px;
  margin: 8px auto 0 !important;
  line-height: 1.6;
}

/* ============================================================
   Modal
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
  backdrop-filter: blur(3px);
}

.modal-overlay[hidden] { display: none; }

.modal {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 36px 32px 32px;
  max-width: 480px;
  width: 100%;
  position: relative;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.22);
  animation: modal-in 0.22s ease;
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.95) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: none;
  border: none;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: 4px;
  border-radius: 6px;
  transition: background-color var(--transition);
}

.modal-close:hover { background: var(--color-bg); }

.modal h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.modal-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

/* Form */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group input[type="email"] {
  width: 100%;
  padding: 11px 14px;
  font-size: 15px;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  color: var(--color-text);
  background: #fff;
}

.form-group input[type="email"]:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.form-group input[type="email"].input-error {
  border-color: #ef4444;
}

.field-error {
  display: block;
  font-size: 12px;
  color: #ef4444;
  margin-top: 5px;
  min-height: 16px;
}

.form-legal {
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 12px;
}

/* Success & error states */
.form-success,
.form-error-msg {
  text-align: center;
  padding: 8px 0;
}

.success-icon { font-size: 48px; display: block; margin-bottom: 12px; }

.form-success h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #16a34a;
}

.form-success p { font-size: 15px; color: var(--color-text-muted); }

.form-error-msg {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 14px;
}

.form-error-msg p {
  font-size: 14px;
  color: #b91c1c;
  margin-top: 4px;
}

/* ============================================================
   Responsive tweaks
   ============================================================ */
@media (max-width: 600px) {
  .site-header .container { flex-direction: column; align-items: flex-start; gap: 4px; }
  .hero { padding: 48px 0 56px; }
  .modal { padding: 28px 20px 24px; }
  .cards-grid { grid-template-columns: 1fr; }
}