/* ============================================
   FXM – Fleteando México  |  styles.css
   ============================================ */

/* ---------- Variables --------------------------------------- */
:root {
  --red:      #F04D23;
  --red-dark: #d6401a;
  --yellow:   #FFD600;
  --dark:     #1a1a1a;
  --gray-700: #333333;
  --gray-500: #666666;
  --gray-100: #f4f4f4;
  --white:    #ffffff;
  --border:   #d8d8d8;

  --font:   -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --max-w:  1100px;
  --radius: 4px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--dark);
  background-color: #ebebeb;
}

img    { max-width: 100%; display: block; }
a      { color: inherit; text-decoration: none; }
ul     { list-style: none; }

/* ---------- Main container ---------------------------------- */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.06), 0 4px 24px rgba(0, 0, 0, 0.07);
}

/* ---------- Header / Nav ------------------------------------ */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--red-dark);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.22);
}

nav {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.75rem;
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav > a {
  display: flex;
  align-items: center;
}

.site-logo {
  height: 80px;
  width: auto;
  display: block;
}

footer .site-logo {
  height: auto;
  max-height: 150px;
  margin: 0 auto 1.25rem;
}

nav ul {
  display: flex;
  gap: 2rem;
}

nav ul a {
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-bottom: 3px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
}

nav ul a:hover { border-bottom-color: var(--yellow); }

/* ---------- Hero -------------------------------------------- */
#home {
  position: relative;
  min-height: 72vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 2rem;
  background-color: var(--dark);
  background-image: url('assets/hero-final.png');
  background-size: cover;
  background-position: center;
  color: var(--white);
}

#home::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.55);
}

#home > * {
  position: relative;
}

#home h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

#home p {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: #a0a0a0;
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

#home > a {
  display: inline-block;
  padding: 0.85rem 2.5rem;
  background-color: var(--red);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: background-color 0.2s ease;
}

#home > a:hover { background-color: var(--red-dark); }

/* ---------- Help Section ------------------------------------ */
#help {
  padding: 5rem 2rem;
  text-align: center;
  background-color: var(--white);
  border-bottom: 1px solid var(--border);
}

#help h2 {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1.25rem;
  display: inline-block;
}

#help h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background-color: var(--yellow);
  margin: 0.5rem auto 0;
}

#help p {
  color: var(--gray-500);
  max-width: 620px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ---------- Services ---------------------------------------- */
#services {
  padding: 5rem 2rem;
  background-color: var(--gray-100);
}

#services > h2 {
  text-align: center;
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2.5rem;
}

#services article {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--red);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
  margin-bottom: 1.25rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

#services article:last-child { margin-bottom: 0; }

#services article:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.11);
  transform: translateY(-2px);
}

#services article h3 {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--dark);
  margin-bottom: 0.6rem;
}

#services article p {
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ---------- Coverage ---------------------------------------- */
#coverage {
  padding: 5rem 2rem;
  text-align: center;
  background-color: var(--white);
}

#coverage h2 {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2.5rem;
}

#coverage figure {
  display: inline-block;
  width: 100%;
  max-width: var(--max-w);
}

#coverage img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  display: block;
}

#coverage figcaption {
  margin-top: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark);
  letter-spacing: 0.01em;
}

/* ---------- Contact / Cotización ---------------------------- */
#contact {
  padding: 5rem 2rem;
  background-color: var(--gray-100);
}

#contact h2 {
  text-align: center;
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2.5rem;
}

#contact form {
  max-width: 560px;
  margin: 0 auto;
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
}

#contact form > div {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
}

/* Default label style (text inputs) */
#contact label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gray-700);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

#contact input[type="text"],
#contact input[type="date"],
#contact select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 1rem;
  color: var(--dark);
  background-color: var(--white);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

/* Custom select arrow */
#contact select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

#contact input[type="text"]:focus,
#contact input[type="date"]:focus,
#contact select:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(240, 77, 35, 0.12);
}

/* Checkbox labels (wraps the input element) */
#contact label:has(input[type="checkbox"]) {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  cursor: pointer;
}

#contact input[type="checkbox"] {
  width: 17px;
  height: 17px;
  accent-color: var(--red);
  cursor: pointer;
  flex-shrink: 0;
}

/* Fieldset & radio */
#contact fieldset {
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1rem 0.85rem;
  margin-bottom: 1.25rem;
}

#contact fieldset legend {
  padding: 0 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gray-700);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

#contact fieldset label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  cursor: pointer;
  margin-top: 0.6rem;
}

#contact input[type="radio"] {
  accent-color: var(--red);
  cursor: pointer;
}

#contact button[type="submit"] {
  display: block;
  width: 100%;
  padding: 0.9rem;
  margin-top: 1.75rem;
  background-color: var(--red);
  color: var(--white);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

#contact button[type="submit"]:hover { background-color: var(--red-dark); }

/* ---------- Footer ------------------------------------------ */
footer {
  background-color: var(--dark);
  border-top: 3px solid var(--red);
  padding: 3rem 1.75rem;
  text-align: center;
  max-width: var(--max-w);
  margin: 0 auto;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.06);
}

footer p {
  font-size: 0.88rem;
  color: #888;
  line-height: 2;
}

/* ---------- Extended Form Styles ---------------------------- */

/* Number and tel — same appearance as text inputs */
#contact input[type="number"],
#contact input[type="tel"] {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 1rem;
  color: var(--dark);
  background-color: var(--white);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

#contact input[type="number"]:focus,
#contact input[type="tel"]:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(240, 77, 35, 0.12);
}

/* Hide browser spinner arrows on number inputs */
#contact input[type="number"]::-webkit-outer-spin-button,
#contact input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
#contact input[type="number"] { -moz-appearance: textfield; }

/* Textarea */
#contact textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 1rem;
  color: var(--dark);
  background-color: var(--white);
  outline: none;
  resize: vertical;
  min-height: 100px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#contact textarea::placeholder { color: var(--gray-500); opacity: 1; }

#contact textarea:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(240, 77, 35, 0.12);
}

/* Small help text under inputs */
#contact .field-help {
  font-size: 0.75rem;
  color: var(--gray-500);
}

/* Inline validation error message */
#contact .field-error {
  font-size: 0.78rem;
  font-weight: 500;
  color: #dc2626;
  min-height: 1em;
  display: block;
}

/* Dimensions group label (mimics label style) */
#contact .field-group-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gray-700);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Inline row of three dimension inputs */
#contact .dims-row {
  display: flex;
  gap: 0.75rem;
}

#contact .dims-row > div {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

/* ---------- Responsive -------------------------------------- */

/* Tablet+: services 2×2 grid */
@media (min-width: 640px) {
  #services {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  #services > h2 {
    grid-column: 1 / -1;
    margin-bottom: 2rem;
  }

  #services article { margin-bottom: 0; }
}

/* Small mobile */
@media (max-width: 480px) {
  nav { padding: 0 1rem; height: 64px; }
  nav ul { gap: 1rem; }
  nav ul a { font-size: 0.76rem; letter-spacing: 0.03em; }
  nav > a  { font-size: 1.05rem; }
  nav .site-logo { height: 48px; }

  #home     { padding: 4rem 1.25rem; }
  #help,
  #services,
  #coverage,
  #contact  { padding: 3.5rem 1.25rem; }

  #contact form { padding: 1.75rem 1.25rem; }

  #contact .dims-row { flex-direction: column; }

  footer { padding: 2.5rem 1.25rem; }
}

/* ---------- Scroll animations -------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- WhatsApp floating button ------------------------- */
.whatsapp-btn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  width: 56px;
  height: 56px;
  background-color: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}