/* ═══════════════════════════════════════════════════════════════
   COINDISA INGENIEROS CONSULTORES — VARIANT B
   "THE INFRASTRUCTURE PORTFOLIO"
   DM Sans 800 only | Navy #1B3A5C | Amber #D97706
═══════════════════════════════════════════════════════════════ */

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

:root {
  --navy:   #1B3A5C;
  --dark:   #1A1A2E;
  --amber:  #D97706;
  --amber-l:#F59E0B;
  --bg:     #F8F6F2;
  --white:  #FFFFFF;
  --text:   #1A1A2E;
  --muted:  #6B7280;
  --border: #D1CFC9;
  --font:   'DM Sans', system-ui, sans-serif;
  --container: 1200px;
  --radius: 3px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ─── REVEAL ─── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2.25rem;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  border-radius: var(--radius);
}
.btn--amber {
  background: var(--amber);
  color: var(--white);
  border-color: var(--amber);
}
.btn--amber:hover { background: var(--amber-l); border-color: var(--amber-l); }

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn--outline:hover { border-color: var(--white); background: rgba(255,255,255,0.1); }

.btn--full { width: 100%; justify-content: center; }

/* ─── NAV ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--dark);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: box-shadow 0.3s;
}

.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav__logo-text {
  font-family: var(--font);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
  text-transform: lowercase;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.nav__links a {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  position: relative;
  padding-bottom: 3px;
  transition: color 0.2s;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 2px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav__links a:hover { color: var(--white); }
.nav__links a:hover::after { transform: scaleX(1); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-toggle {
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--white);
  background: transparent;
  border: 1.5px solid rgba(255,255,255,0.4);
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: all 0.2s;
}
.lang-toggle:hover { border-color: var(--amber); color: var(--amber); }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  transition: all 0.3s;
}

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--dark);
  overflow: hidden;
  padding-top: 68px;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(27,58,92,0.6) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(217,119,6,0.15) 0%, transparent 50%),
    linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.1) 100%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 2rem;
  max-width: 900px;
}

.hero__counter {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.hero__years {
  font-size: clamp(4rem, 10vw, 9rem);
  font-weight: 800;
  color: var(--amber);
  line-height: 1;
  letter-spacing: -0.04em;
}

.hero__anos {
  font-size: clamp(1.5rem, 3vw, 3rem);
  font-weight: 800;
  color: var(--amber);
  text-transform: lowercase;
}

.hero__headline {
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 1.5rem;
}

.hero__line1 {
  display: block;
  font-size: clamp(3rem, 7vw, 6.5rem);
  color: var(--white);
  letter-spacing: -0.03em;
}

.hero__line2 {
  display: block;
  font-size: clamp(2rem, 5vw, 4.5rem);
  color: rgba(255,255,255,0.75);
  letter-spacing: -0.02em;
}

.hero__line3 {
  display: block;
  font-size: clamp(1.2rem, 3vw, 2.2rem);
  color: rgba(255,255,255,0.5);
  font-weight: 500;
  margin-top: 0.5rem;
}

.hero__sub {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 2.5rem;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* ─── TICKER ─── */
.hero__ticker {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 3;
  background: var(--amber);
  height: 44px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.ticker__track {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  white-space: nowrap;
  animation: ticker 30s linear infinite;
  padding: 0 2rem;
}

.ticker__track span {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark);
  flex-shrink: 0;
}
.ticker__track .sep { color: rgba(26,26,46,0.4); }

@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ─── SECTION HEADERS ─── */
.section-header {
  margin-bottom: 3.5rem;
  max-width: 680px;
}
.section-header h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  display: block;
  margin-bottom: 0.6rem;
}

/* ─── PROJECTS ─── */
.projects {
  padding: 7rem 0;
  background: var(--bg);
}

.projects__grid {
  display: grid;
  grid-template-columns: 60% 40%;
  grid-template-rows: auto auto;
  gap: 1rem;
}

.project-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.project-card--large {
  grid-row: 1 / 3;
}

.project-card--small {
  min-height: 220px;
}

.project-card__img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  position: relative;
  transition: transform 0.4s ease;
}

.project-card:hover .project-card__img {
  transform: scale(1.02);
}

.project-card--large .project-card__img {
  min-height: 460px;
}

.project-card__overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.1) 100%);
  padding: 2rem 1.5rem 1.5rem;
  transform: translateY(30px);
  opacity: 0.7;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.project-card:hover .project-card__overlay {
  transform: translateY(0);
  opacity: 1;
}

.project-card__cat {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.4rem;
}

.project-card__overlay h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.4rem;
  line-height: 1.25;
}

.project-card__overlay p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.5;
}

.project-card--large .project-card__overlay h3 { font-size: 1.4rem; }

/* row 3 of grid: last card spans full or second column */
.projects__grid .project-card:last-child {
  grid-column: 2;
}

/* ─── ABOUT ─── */
.about {
  background: var(--navy);
  padding: 7rem 0;
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.about__text p.section-label { color: var(--amber); }

.about__text h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.about__text p:not(.section-label) {
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.about__stats {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  padding-top: 3.5rem;
}

.about-stat__num {
  display: block;
  font-size: clamp(3rem, 5vw, 5rem);
  font-weight: 800;
  color: var(--amber);
  line-height: 1;
  letter-spacing: -0.03em;
}

.about-stat__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
  margin-top: 0.4rem;
}

/* ─── DISCIPLINES ─── */
.disciplines {
  padding: 7rem 0;
  background: var(--dark);
}

.disciplines .section-header h2 { color: var(--white); }
.disciplines .section-label { color: var(--amber); }

.disciplines__scroll {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--amber) rgba(255,255,255,0.1);
}
.disciplines__scroll::-webkit-scrollbar { height: 4px; }
.disciplines__scroll::-webkit-scrollbar-track { background: rgba(255,255,255,0.06); }
.disciplines__scroll::-webkit-scrollbar-thumb { background: var(--amber); border-radius: 2px; }

.disc-card {
  flex: 0 0 280px;
  scroll-snap-align: start;
  background: rgba(255,255,255,0.04);
  border-left: 4px solid var(--amber);
  padding: 2rem 1.5rem;
  transition: background 0.25s;
}
.disc-card:hover { background: rgba(255,255,255,0.07); }

.disc-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.disc-card p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.65;
}

/* ─── TEAM ─── */
.team {
  padding: 6rem 0;
  background: var(--bg);
}

.team__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.team-member {
  padding: 1.75rem 1.5rem;
  background: var(--white);
  border-top: 3px solid var(--amber);
  transition: box-shadow 0.25s;
}
.team-member:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.08); }

.team-member__name {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.35rem;
}
.team-member__title {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.team-member__cred {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--amber);
}

/* ─── CONTACT ─── */
.contact {
  background: var(--dark);
  padding: 7rem 0 0;
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
  padding-bottom: 5rem;
}

.contact__info .section-label { color: var(--amber); }

.contact__info h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.contact__info > p:not(.section-label) {
  color: rgba(255,255,255,0.6);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 2rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact__detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}
.contact__icon { flex-shrink: 0; }
.contact__detail a:hover { color: var(--amber); }

/* ─── FORM (dark version) ─── */
.contact .form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 0.5rem;
}
.contact .form-group input,
.contact .form-group select,
.contact .form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--white);
  background: rgba(255,255,255,0.07);
  border: 1.5px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
}
.contact .form-group input:focus,
.contact .form-group select:focus,
.contact .form-group textarea:focus {
  border-color: var(--amber);
}
.contact .form-group input::placeholder,
.contact .form-group textarea::placeholder {
  color: rgba(255,255,255,0.25);
}
.contact .form-group select option { color: var(--dark); background: var(--white); }
.contact .form-group textarea { resize: vertical; }
.contact .form-group { margin-bottom: 1.25rem; }

.form-success {
  display: none;
  text-align: center;
  margin-top: 1rem;
  color: var(--amber);
  font-size: 0.875rem;
  font-weight: 600;
}

/* ─── FOOTER ─── */
.footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 2rem 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer__logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}

.footer__copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
}

/* ─── MOBILE ─── */
@media (max-width: 1024px) {
  .team__list { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: var(--dark);
    padding: 2rem;
    gap: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.08);
    z-index: 999;
  }
  .nav__hamburger { display: flex; }

  .projects__grid { grid-template-columns: 1fr; }
  .project-card--large { grid-row: auto; }
  .projects__grid .project-card:last-child { grid-column: auto; }
  .project-card--small { min-height: 180px; }
  .project-card--large .project-card__img { min-height: 320px; }

  .about__inner { grid-template-columns: 1fr; gap: 3rem; }
  .about__stats { padding-top: 0; }

  .contact__inner { grid-template-columns: 1fr; gap: 3rem; }

  .footer__inner { flex-direction: column; text-align: center; }
}

@media (max-width: 600px) {
  .team__list { grid-template-columns: 1fr; }
  .hero__content { padding: 0 1.5rem; }
  .container { padding: 0 1rem; }
  .projects, .about, .disciplines, .team, .contact { padding-top: 4rem; padding-bottom: 4rem; }
  .hero__ticker { display: none; }
}