/* ==========================================================================
   Data & AI Summit 2026 — styles
   --------------------------------------------------------------------------
   Palette
     --navy-900  #0A1A2C   darkest navy (hero/footer base)
     --navy-700  #102A47   hero gradient top
     --blue-600  #326aac   primary brand blue
     --ink       #0E1726   body text
     --slate-500 #54637A   secondary text
     --teal-300  #7ECBD7   accent on dark
     --surface   #F4F8FC   light section background
     --line      #EAEFF6   hairline borders
   ========================================================================== */

:root {
  --navy-900: #0A1A2C;
  --navy-700: #102A47;
  --blue-600: #326aac;
  --ink: #0E1726;
  --slate-500: #54637A;
  --slate-400: #7A879B;
  --teal-300: #7ECBD7;
  --surface: #F4F8FC;
  --line: #EAEFF6;
  --maxw: 1120px;
}


/* ==========================================================================
   Resets
   ========================================================================== */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  background: #fff;
  font-family: 'Inter', sans-serif;
  color: var(--ink);
}

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

a {
  text-decoration: none;
}


/* ==========================================================================
   Layout helpers
   ========================================================================== */

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(48px, 7vw, 76px) clamp(20px, 5vw, 40px);
}

.eyebrow {
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-600);
}

.section-title {
  margin: 0 0 36px;
  font-weight: 700;
  font-size: clamp(26px, 4.6vw, 34px);
  letter-spacing: -.02em;
  color: var(--ink);
}

.bg-surface {
  background: var(--surface);
}

.bg-white {
  background: #fff;
}


/* ==========================================================================
   Topbar
   ========================================================================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 18px;
  padding: 14px clamp(16px, 4vw, 40px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(140%) blur(8px);
}

.topbar__logo {
  height: 60px;
}

.topbar__nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 22px;
}

.topbar__link {
  font-size: 14px;
  font-weight: 500;
  color: #3A4658;
  transition: color .15s ease;
}

.topbar__link:hover {
  color: var(--blue-600);
}

.topbar__link:active {
  color: var(--navy-700);
}

.topbar__link:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
  border-radius: 3px;
}


/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-block;
  font-weight: 600;
  border-radius: 8px;
  transition: background .15s ease, box-shadow .15s ease, transform .05s ease, border-color .15s ease;
}

.btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  padding: 11px 20px;
  font-size: 14px;
  background: var(--blue-600);
  color: #fff;
}

.btn--primary:hover {
  background: #2a5c97;
}

.btn--primary:active {
  background: #244f83;
}

.btn--primary:focus-visible {
  outline-color: var(--blue-600);
}

.btn--primary-lg {
  padding: 15px 28px;
  font-size: 15.5px;
  border-radius: 10px;
  background: var(--blue-600);
  color: #fff;
  box-shadow: 0 10px 28px rgba(50, 106, 172, .45);
}

.btn--primary-lg:hover {
  background: #2a5c97;
  box-shadow: 0 14px 34px rgba(50, 106, 172, .55);
}

.btn--primary-lg:active {
  background: #244f83;
  box-shadow: 0 8px 20px rgba(50, 106, 172, .45);
}

.btn--ghost-lg {
  padding: 15px 28px;
  font-size: 15.5px;
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: 10px;
  background: transparent;
  color: #fff;
}

.btn--ghost-lg:hover {
  background: rgba(255, 255, 255, .10);
  border-color: rgba(255, 255, 255, .6);
}

.btn--ghost-lg:active {
  background: rgba(255, 255, 255, .16);
}


/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  color: #fff;
  background:
    radial-gradient(circle at 1px 1px, rgba(120, 170, 255, .10) 1px, transparent 0) 0 0 / 22px 22px,
    radial-gradient(1000px 540px at 80% -20%, rgba(50, 106, 172, .55), transparent 60%),
    radial-gradient(820px 520px at 0% 120%, rgba(85, 179, 197, .28), transparent 60%),
    linear-gradient(160deg, var(--navy-700) 0%, var(--navy-900) 100%);
}

.hero__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(56px, 9vw, 96px) clamp(20px, 5vw, 40px) clamp(56px, 9vw, 92px);
}

.hero__body {
  max-width: 840px;
}

.hero__kicker {
  margin-bottom: 22px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--teal-300);
}

.hero__title {
  margin: 0 0 22px;
  font-weight: 800;
  font-size: clamp(38px, 8vw, 74px);
  line-height: 1.02;
  letter-spacing: -.025em;
}

.hero__lede {
  max-width: 620px;
  margin: 0 0 36px;
  font-size: 20px;
  line-height: 1.55;
  color: #C9D6E8;
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 38px;
}

.fact {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 10px;
  background: rgba(255, 255, 255, .04);
}

.fact__label {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--teal-300);
}

.fact__value {
  font-size: 15px;
  font-weight: 500;
}

.fact__link {
  font-size: 13px;
  font-weight: 600;
  color: var(--teal-300);
  border-bottom: 1px solid rgba(126, 203, 215, .45);
  transition: color .15s ease, border-color .15s ease;
}

.fact__link:hover {
  color: #a6e0ea;
  border-bottom-color: #a6e0ea;
}

.fact__link:active {
  color: #fff;
}

.hero__cta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.hero__note {
  font-size: 13.5px;
  color: #90A2BD;
}


/* ==========================================================================
   About
   ========================================================================== */

.about__lead {
  max-width: 920px;
  margin: 0 0 26px;
  font-weight: 600;
  font-size: clamp(21px, 3.4vw, 27px);
  line-height: 1.4;
  color: var(--ink);
  text-wrap: pretty;
}

.about__body {
  max-width: 820px;
  margin: 0;
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--slate-500);
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 48px;
  margin-top: 46px;
}

.stat__num {
  font-weight: 700;
  font-size: 40px;
  letter-spacing: -.02em;
  color: var(--blue-600);
}

.stat__label {
  margin-top: 4px;
  font-size: 14px;
  color: var(--slate-500);
}


/* ==========================================================================
   Programa (agenda)
   ========================================================================== */

.agenda {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.agenda-row {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 14px 24px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.agenda-row__time {
  flex: none;
  width: 140px;
  padding-top: 3px;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-600);
}

.agenda-row__main {
  flex: 2 1 280px;
}

.agenda-row__title {
  font-weight: 600;
  font-size: 17.5px;
  line-height: 1.35;
  color: var(--ink);
  text-wrap: pretty;
}

.agenda-row__who {
  flex: 1 1 170px;
  min-width: 150px;
  padding-top: 3px;
  font-size: 14px;
  color: var(--slate-500);
  text-align: right;
}

.tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 8px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--slate-400);
  border: 1px solid #E2E9F2;
  border-radius: 5px;
}

.agenda-break {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 22px;
  border-radius: 12px;
  background: var(--surface);
}

.agenda-break__time {
  flex: none;
  width: 140px;
  font-size: 13px;
  font-weight: 500;
  color: #9AA7BB;
}

.agenda-break__title {
  flex: 1;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--slate-400);
}


/* ==========================================================================
   Expositores (speaker cards)
   ========================================================================== */

.speaker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.speaker-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.speaker-card__photo {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #E8EEF6;
}

.photo-fill {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-ph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: repeating-linear-gradient(45deg, #E8EEF6, #E8EEF6 10px, #E1E9F3 10px, #E1E9F3 20px);
}

.photo-ph__label {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 11px;
  letter-spacing: .06em;
  color: #8595AC;
}

.speaker-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 20px 20px 22px;
}

.tag--brand {
  align-self: flex-start;
  margin-bottom: 12px;
  font-size: 10px;
  color: var(--blue-600);
  background: #EAF1FB;
  border: none;
}

.speaker-card__name {
  font-weight: 700;
  font-size: 19px;
  color: var(--ink);
}

.speaker-card__org {
  margin: 4px 0 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--blue-600);
}

.speaker-card__bio {
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate-500);
  text-wrap: pretty;
}

.linkbtn {
  align-self: flex-start;
  margin-top: auto;
  padding: 0;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--blue-600);
  background: none;
  border: none;
  cursor: pointer;
  transition: color .15s ease;
}

.linkbtn:hover {
  color: #244f83;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.linkbtn:active {
  color: var(--navy-700);
}

.linkbtn:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
  border-radius: 3px;
}


/* ==========================================================================
   Entradas (tickets)
   ========================================================================== */

.ticket-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

/* Featured card sits alone on the first row (one track wide):
   the card right after it is forced back to column 1, wrapping to a new row. */
.ticket--featured {
  grid-column: 1;
}

.ticket--featured + .ticket {
  grid-column: 1;
}

.ticket {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}

.ticket--featured {
  border: 1.5px solid var(--blue-600);
  background: linear-gradient(170deg, var(--navy-700), var(--navy-900));
  color: #fff;
}

.ticket__label {
  font-size: 14px;
  font-weight: 600;
  color: var(--slate-500);
}

.ticket--featured .ticket__label {
  color: #9FC2F0;
}

.ticket__price {
  margin: 14px 0 2px;
  font-weight: 800;
  font-size: 46px;
  letter-spacing: -.02em;
  color: var(--ink);
}

.ticket--featured .ticket__price {
  color: #fff;
}

.ticket__sub {
  margin-bottom: 24px;
  font-size: 14.5px;
  color: var(--slate-500);
}

.ticket--featured .ticket__sub {
  color: #C9D6E8;
}

.ticket__btn {
  display: block;
  padding: 14px;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  border-radius: 10px;
  transition: background .15s ease, color .15s ease, box-shadow .15s ease, transform .05s ease;
}

.ticket__btn:active {
  transform: translateY(1px);
}

.ticket__btn:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 2px;
}

.ticket__btn--outline {
  color: var(--blue-600);
  border: 1px solid var(--blue-600);
}

.ticket__btn--outline:hover {
  background: var(--blue-600);
  color: #fff;
}

.ticket__btn--solid {
  color: #fff;
  background: var(--blue-600);
  box-shadow: 0 8px 22px rgba(50, 106, 172, .4);
}

.ticket__btn--solid:hover {
  background: #2a5c97;
  box-shadow: 0 12px 28px rgba(50, 106, 172, .5);
}

.ticket__btn--solid:focus-visible {
  outline-color: #fff;
}

.ticket-note {
  margin-top: 22px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--slate-500);
}

.ticket-note a {
  font-weight: 600;
  color: var(--blue-600);
  transition: color .15s ease;
}

.ticket-note a:hover {
  color: #244f83;
  text-decoration: underline;
  text-underline-offset: 3px;
}


/* ==========================================================================
   CTA band (afiliación empresarial)
   ========================================================================== */

.cta-band {
  background: var(--blue-600);
  color: #fff;
}

.cta-band__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px 30px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(28px, 5vw, 40px) clamp(20px, 5vw, 40px);
}

.cta-band__text {
  max-width: 680px;
}

.cta-band__title {
  margin-bottom: 6px;
  font-weight: 700;
  font-size: 23px;
  line-height: 1.3;
  text-wrap: pretty;
}

.cta-band__sub {
  font-size: 15px;
  color: #D4E4F4;
}

.cta-band__btn {
  flex: none;
  display: inline-block;
  padding: 15px 28px;
  font-size: 15px;
  font-weight: 700;
  color: var(--blue-600);
  background: #fff;
  border-radius: 10px;
  transition: background .15s ease, box-shadow .15s ease, transform .05s ease;
}

.cta-band__btn:hover {
  background: #eef4fb;
  box-shadow: 0 8px 22px rgba(0, 0, 0, .18);
}

.cta-band__btn:active {
  transform: translateY(1px);
}

.cta-band__btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}


/* ==========================================================================
   Patrocinadores (sponsors)
   ========================================================================== */

.sponsors {
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.sponsors__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(44px, 6vw, 60px) clamp(20px, 5vw, 40px);
}

.sponsors__label {
  margin-bottom: 30px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-align: center;
  color: var(--slate-400);
}

.sponsor-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.sponsor {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 210px;
  height: 84px;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.sponsor__logo {
  width: auto;
}

.sponsor__ph {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border-radius: 6px;
  background: repeating-linear-gradient(45deg, var(--surface), var(--surface) 8px, #EDF2F9 8px, #EDF2F9 16px);
}

.sponsor__ph-label {
  padding: 0 10px;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 10.5px;
  letter-spacing: .04em;
  text-align: center;
  color: #8595AC;
}


/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: var(--navy-900);
  color: #C9D6E8;
}

.footer__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 54px) clamp(20px, 5vw, 40px);
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 30px;
}

.footer__brand {
  max-width: 380px;
}

.footer__logo-box {
  display: inline-block;
  margin-bottom: 20px;
  padding: 18px 24px;
  border-radius: 12px;
  background: #fff;
}

.footer__logo {
  height: 56px;
}

.footer__addr {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: #90A2BD;
}

.footer__waze {
  display: inline-block;
  margin-top: 12px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--teal-300);
  transition: color .15s ease;
}

.footer__waze:hover {
  color: #a6e0ea;
}

.footer__cols {
  display: flex;
  flex-wrap: wrap;
  gap: 64px;
}

.footer__col-title {
  margin-bottom: 14px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #5F7390;
}

.footer__link {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  color: #C9D6E8;
  transition: color .15s ease;
}

.footer__link:hover {
  color: #fff;
}

.footer__link:focus-visible {
  outline: 2px solid var(--teal-300);
  outline-offset: 3px;
  border-radius: 3px;
}

.footer__link:last-child {
  margin-bottom: 0;
}

.footer__link--teal {
  color: var(--teal-300);
}

.footer__legal {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 12.5px;
  color: #5F7390;
}


/* ==========================================================================
   Bio modal
   ========================================================================== */

.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 4vw, 32px);
  background: rgba(10, 26, 44, .6);
  backdrop-filter: blur(3px);
}

.modal.is-open {
  display: flex;
}

.modal__card {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 680px;
  max-height: 88vh;
  overflow: hidden auto;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .4);
}

.modal__head {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 0;
}

.modal__photo {
  position: relative;
  flex: none;
  width: 200px;
  min-width: 200px;
  height: 200px;
  background: #E8EEF6;
}

.modal__meta {
  flex: 1;
  padding: 28px 30px;
}

.modal__name {
  font-weight: 800;
  font-size: 26px;
  letter-spacing: -.02em;
  color: var(--ink);
}

.modal__org {
  margin-top: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--blue-600);
}

.modal__body {
  padding: 26px 30px 30px;
}

.modal__text {
  margin: 0 0 24px;
  font-size: 15.5px;
  line-height: 1.7;
  color: #445268;
  text-wrap: pretty;
}

.modal__close {
  padding: 12px 24px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--blue-600);
  border: none;
  border-radius: 9px;
  cursor: pointer;
  transition: background .15s ease, transform .05s ease;
}

.modal__close:hover {
  background: #2a5c97;
}

.modal__close:active {
  transform: translateY(1px);
}

.modal__close:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 2px;
}

.photo-ph--sm .photo-ph__label {
  font-size: 11px;
}