/* ══════════════════════════════════════════════════════
   Datalejo MVP — style.css
   Diseño corporativo, limpio y moderno. Sin frameworks.
   ══════════════════════════════════════════════════════ */

/* ── Variables ─────────────────────────────────────── */
:root {
  --color-primary:     #1E63FF;
  --color-primary-d:   #174ED1;
  --color-primary-l:   #EEF4FF;
  --color-dark:        #0B1020;
  --color-dark-2:      #11182A;
  --color-dark-3:      #1B2438;
  --color-text:        #111827;
  --color-text-muted:  #657087;
  --color-text-light:  #B6C0D4;
  --color-border:      #E3E8F0;
  --color-surface:     #F6F8FC;
  --color-white:       #FFFFFF;
  --color-success:     #059669;
  --color-error:       #DC2626;
  --color-accent:      #4FD1FF;

  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-xl:   32px;

  --shadow-sm:   0 1px 3px rgba(10,16,32,.08);
  --shadow-md:   0 6px 18px rgba(10,16,32,.10);
  --shadow-lg:   0 16px 42px rgba(10,16,32,.14);

  --font:        'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --transition:  0.22s ease;
  --max-width:   1180px;
}

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

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

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ── Buttons ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: #0A7C73;
  color: var(--color-white);
  border-color: #0A7C73;
}
.btn--primary:hover {
  background: #075E57;
  border-color: #075E57;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(10,124,115,.16);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: rgba(30,99,255,.48);
}
.btn--outline:hover {
  background: rgba(30,99,255,.06);
  border-color: rgba(30,99,255,.60);
}

.btn--nav {
  padding: 9px 20px;
  font-size: 14px;
  background: #0A7C73;
  color: var(--color-white);
  border: 1px solid #0A7C73;
  border-radius: var(--radius-sm);
}
.btn--nav:hover {
  background: #075E57;
  border-color: #075E57;
  box-shadow: 0 10px 20px rgba(10,124,115,.18);
}

.btn--sm { padding: 10px 20px; font-size: 14px; }

.btn--block { width: 100%; }

/* ── Navbar ─────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(11, 16, 32, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: all var(--transition);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  color: var(--color-white);
}

.navbar__logo-icon {
  display: flex;
  height: 34px;
  width: 34px;
  object-fit: contain;
  flex-shrink: 0;
}

.logo-name {
  color: var(--color-white);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.navbar__links a {
  color: rgba(245,247,251,.72);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition);
}
.navbar__links a:hover { color: var(--color-white); }
.navbar__links a.active {
  color: var(--color-white);
}

.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ── Hero ────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-dark);
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79,209,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,209,255,.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 84% 62% at 50% 50%, black, transparent);
}

.hero::after {
  content: '';
  position: absolute;
  width: 700px;
  height: 420px;
  background: radial-gradient(ellipse, rgba(10,124,115,.12) 0%, rgba(10,124,115,.05) 34%, transparent 74%);
  top: 56%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero__eyebrow {
  display: inline-block;
  color: #35CFFF;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
  padding: 6px 16px;
  border: 1px solid rgba(79,209,255,.20);
  border-radius: 100px;
  background: rgba(79,209,255,.06);
}

.hero__title {
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, #1E63FF 0%, #4FD1FF 52%, #79E0D7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(18px, 2.5vw, 22px);
  color: rgba(198,206,219,.92);
  margin-bottom: 40px;
  line-height: 1.55;
}

.hero__ctas {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero__ctas .btn--outline {
  color: rgba(245,247,251,.92);
  border-color: rgba(255,255,255,.18);
  background: rgba(255,255,255,.03);
}
.hero__ctas .btn--outline:hover {
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.24);
}

.hero__stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}

.stat { text-align: center; }
.stat__number {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
}
.stat__label {
  font-size: 13px;
  color: rgba(182,192,212,.70);
  margin-top: 4px;
}
.stat__divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.10);
}

/* ── Sections ────────────────────────────────────────── */
.section { padding: 96px 0; }
.section--light { background: var(--color-surface); }
.section--dark {
  background: linear-gradient(180deg, #11182A 0%, #0E1526 100%);
  color: var(--color-white);
}

.section-header {
  text-align: center;
  max-width: 660px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  background: rgba(10,124,115,.08);
  color: #0A7C73;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-tag--light {
  background: rgba(79,209,255,.10);
  color: #79E0D7;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-title--light { color: var(--color-white); }

.section-desc {
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.section--dark .section-desc {
  color: rgba(182,192,212,.82);
}

/* ── Pillars ─────────────────────────────────────────── */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.pillar {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition);
}
.pillar:hover {
  border-color: rgba(10,124,115,.30);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.pillar__icon {
  width: 54px;
  height: 54px;
  background: rgba(10,124,115,.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0A7C73;
  margin-bottom: 20px;
}

.pillar h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.pillar p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ── Services ────────────────────────────────────────── */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  transition: all var(--transition);
  min-height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: 0 14px 40px rgba(17, 24, 42, 0.04);
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(10,124,115,.18);
}

.service-card--featured {
  background: linear-gradient(180deg, #0F1730 0%, #0B1020 100%);
  border-color: rgba(79,209,255,.26);
  color: var(--color-white);
}

.service-card__badge {
  position: absolute;
  top: -12px;
  left: 28px;
  background: #0A7C73;
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.service-card__icon {
  width: 56px;
  height: 56px;
  background: rgba(10,124,115,.10);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0A7C73;
  margin-bottom: 20px;
  box-shadow: inset 0 0 0 1px rgba(10,124,115,.04);
}

.service-card--featured .service-card__icon {
  background: rgba(79,209,255,.12);
}

.service-card h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  line-height: 1.65;
}

.service-card--featured p { color: rgba(255,255,255,.68); }

.service-card__features {
  margin-bottom: 28px;
  flex: 1 1 auto;
}

.service-card__features li {
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.service-card__features li:last-child { border-bottom: none; }

.service-card__features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: #0A7C73;
  font-size: 13px;
}

.service-card--featured .service-card__features li {
  color: rgba(255,255,255,.65);
  border-color: rgba(255,255,255,.1);
}

.service-card:not(.service-card--featured) h3 {
  color: #101828;
}

.service-card:not(.service-card--featured) p,
.service-card:not(.service-card--featured) .service-card__features li {
  color: #60708C;
}

.service-card:not(.service-card--featured) {
  background: linear-gradient(180deg, #FBFCFF 0%, #F5F8FD 100%);
  border-color: rgba(148, 163, 184, 0.22);
}

.service-card:not(.service-card--featured) .btn--outline {
  border-color: rgba(30,99,255,.34);
  color: #1E63FF;
  background: rgba(255,255,255,.72);
}

.service-card:not(.service-card--featured) .btn--outline:hover {
  border-color: rgba(10,124,115,.42);
  color: #0A7C73;
  background: rgba(10,124,115,.06);
}

/* ── Cases ───────────────────────────────────────────── */
.cases {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.case-item {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  padding: 28px 32px;
  border-radius: var(--radius-md);
  transition: background var(--transition), box-shadow var(--transition);
}

.case-item:hover {
  background: rgba(255,255,255,.78);
  box-shadow: var(--shadow-sm);
}

.case-item__number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #0A7C73 0%, #1E63FF 100%);
  color: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.case-item__content h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.case-item__content p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ── Process ─────────────────────────────────────────── */
.process {
  max-width: 760px;
  margin: 0 auto;
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  position: relative;
}

.process-step__num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border: 2px solid #0A7C73;
  color: #0A7C73;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  background: var(--color-white);
  position: relative;
  z-index: 1;
}

.process-step__line {
  position: absolute;
  left: 21px;
  top: 44px;
  width: 2px;
  height: calc(100% + 24px);
  background: linear-gradient(to bottom, rgba(10,124,115,.75), rgba(227,232,240,.6));
}

.process-step__content {
  padding-bottom: 40px;
}

.process-step--last .process-step__content { padding-bottom: 0; }

.process-step__content h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
  margin-top: 8px;
}

.process-step__content p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── Contact ─────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  align-items: start;
}

.contact-info__desc {
  font-size: 16px;
  color: rgba(182,192,212,.82);
  margin-bottom: 36px;
  line-height: 1.7;
}

.contact-highlights {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.highlight {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: rgba(245,247,251,.86);
}

.highlight svg { color: #79E0D7; flex-shrink: 0; }

/* ── Form ────────────────────────────────────────────── */
.contact-form-wrapper {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(17,24,42,.06);
}

.contact-form { display: flex; flex-direction: column; gap: 20px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.required { color: var(--color-error); }

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #0A7C73;
  box-shadow: 0 0 0 3px rgba(10,124,115,.10);
}

.form-group input.is-error,
.form-group textarea.is-error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(220,38,38,.1);
}

.form-error {
  font-size: 12px;
  color: var(--color-error);
  min-height: 16px;
  display: block;
}

.form-alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  display: none;
}

.form-alert.is-success {
  display: block;
  background: #ECFDF5;
  color: #065F46;
  border: 1px solid #A7F3D0;
}

.form-alert.is-error {
  display: block;
  background: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FECACA;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.btn-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.form-privacy {
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.5;
}

/* ── Footer ──────────────────────────────────────────── */
.footer {
  background: var(--color-dark);
  padding: 40px 0;
  border-top: 1px solid rgba(255,255,255,.06);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__brand .navbar__logo {
  margin-bottom: 8px;
}

.footer .navbar__logo,
.footer .logo-name {
  color: var(--color-white);
}

.footer__brand p {
  font-size: 13px;
  color: rgba(255,255,255,.4);
  margin-top: 0;
}

.footer__copy {
  font-size: 13px;
  color: rgba(255,255,255,.35);
}

/* ── Utilities ───────────────────────────────────────── */
.hide-mobile { display: inline; }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 900px) {
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .navbar__logo-icon {
    height: 30px;
    width: 30px;
  }

  .logo-name { font-size: 21px; }

  .navbar__links {
    display: none;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(11,16,32,.98);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }

  .navbar__links.is-open { display: flex; }
  .navbar__links a.active { color: var(--color-white); }

  .navbar__hamburger { display: flex; }

  .hero__stats { gap: 28px; }
  .stat__divider { display: none; }

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

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

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

  .hide-mobile { display: none; }

  .contact-form-wrapper { padding: 28px 20px; }

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

  .section { padding: 64px 0; }
}

@media (max-width: 480px) {
  .pillars { grid-template-columns: 1fr; }

  .hero__ctas { flex-direction: column; align-items: stretch; }

  .case-item { padding: 20px 16px; }

  .btn { padding: 13px 22px; }
}