/* ============================================================
   IMPACT SUMMIT — Landing Page
   Identidade oficial: Manual da Marca (Ibraimo Atumane, 2026)
   Navy #0A102C · Dourado #502D0A / #A36B31 / #EDD987
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root {
  /* Cores oficiais */
  --navy: #0A102C;
  --navy-900: #070b1f;
  --navy-800: #0d1533;
  --navy-700: #131d43;
  --navy-600: #1b2653;
  --gold-dark: #502D0A;
  --gold: #A36B31;
  --gold-mid: #c68a3c;
  --gold-light: #EDD987;
  --paper: #ffffff;
  --mist: rgba(237, 217, 135, 0.08);

  /* Texto */
  --text: #eef1fb;
  --text-soft: #b9c0dd;
  --text-dim: #7f88ad;
  --line: rgba(237, 217, 135, 0.14);
  --line-soft: rgba(255, 255, 255, 0.08);

  /* Gradientes de marca */
  --grad-gold: linear-gradient(135deg, #EDD987 0%, #c68a3c 45%, #A36B31 75%, #502D0A 100%);
  --grad-gold-soft: linear-gradient(135deg, #f2e2a4, #c68a3c);
  --grad-navy: linear-gradient(180deg, #0A102C 0%, #070b1f 100%);

  /* Tipografia */
  --font-display: "Montserrat", "TT Drugs", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Métricas */
  --maxw: 1180px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 18px;
  --radius-lg: 26px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.7s;
}

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

* { margin: 0; }

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

body {
  font-family: var(--font-body);
  background: var(--navy);
  color: var(--text);
  line-height: 1.65;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

::selection { background: rgba(198, 138, 60, 0.35); color: #fff; }

:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-light);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--grad-gold-soft);
}
.eyebrow.center::after {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--grad-gold-soft);
}

.text-gold {
  background: var(--grad-gold-soft);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

section { position: relative; }

.section {
  padding-block: clamp(4.5rem, 9vw, 8rem);
}

.section-head {
  max-width: 640px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-head.center {
  margin-inline: auto;
  text-align: center;
}
.section-title {
  font-size: clamp(2rem, 1.3rem + 3vw, 3.25rem);
  margin-top: 1rem;
}
.section-lead {
  margin-top: 1.1rem;
  color: var(--text-soft);
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.2rem);
}

/* ---------- Botões ---------- */
.btn {
  --pad-y: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  padding: var(--pad-y) 1.6rem;
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), background 0.4s var(--ease);
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; }

.btn-gold {
  color: #241606;
  background: var(--grad-gold);
  background-size: 160% 160%;
  box-shadow: 0 10px 30px -12px rgba(198, 138, 60, 0.7);
}
.btn-gold:hover {
  transform: translateY(-2px);
  background-position: 100% 0;
  box-shadow: 0 16px 40px -12px rgba(198, 138, 60, 0.85);
}

.btn-ghost {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}
.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: rgba(237, 217, 135, 0.4);
  background: rgba(237, 217, 135, 0.06);
}

.btn-sm { --pad-y: 0.7rem; padding-inline: 1.25rem; font-size: 0.85rem; }

/* ---------- Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding-block: 1.1rem;
  transition: padding 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
  border-bottom: 1px solid transparent;
}
/* Fundo desfocado num pseudo-elemento para o header não criar um
   containing-block que quebraria o position:fixed da sidebar. */
.header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(9, 13, 33, 0.72);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
  z-index: -1;
}
.header.scrolled {
  padding-block: 0.7rem;
  border-bottom-color: var(--line-soft);
  box-shadow: 0 10px 40px -20px rgba(0, 0, 0, 0.8);
}
.header.scrolled::before { opacity: 1; }
.header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.65rem; }
.brand__icon {
  width: 30px;
  height: auto;
  filter: drop-shadow(0 3px 10px rgba(198, 138, 60, 0.35));
}
.brand__text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text);
  line-height: 1;
  white-space: nowrap;
}
.brand__text b { font-weight: 800; }

.nav {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}
.nav__links {
  display: flex;
  gap: 2rem;
  list-style: none;
  padding: 0;
}
.nav__links a {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--text-soft);
  position: relative;
  padding-block: 0.3rem;
  transition: color 0.3s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--grad-gold-soft);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { transform: scaleX(1); }
.nav__links-cta { display: none; }

.nav__toggle {
  display: none;
  position: relative;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  -webkit-tap-highlight-color: transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.2s var(--ease);
}
.nav__toggle:hover {
  background: var(--mist);
  border-color: rgba(237, 217, 135, 0.28);
}
.nav__toggle:active { transform: scale(0.94); }
.nav__toggle:focus-visible {
  outline: none;
  border-color: var(--gold-mid);
  box-shadow: 0 0 0 3px rgba(198, 138, 60, 0.28);
}
.nav__toggle span {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: background 0.2s var(--ease);
}
.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), top 0.35s var(--ease);
}
.nav__toggle span::before { top: -6px; }
.nav__toggle span::after { top: 6px; }
.nav.open .nav__toggle {
  background: linear-gradient(135deg, rgba(237, 217, 135, 0.16), rgba(198, 138, 60, 0.14));
  border-color: rgba(237, 217, 135, 0.42);
  box-shadow: 0 6px 22px -10px rgba(198, 138, 60, 0.6);
}
.nav.open .nav__toggle span { background: transparent; }
.nav.open .nav__toggle span::before { top: 0; transform: rotate(45deg); background: var(--gold-light); }
.nav.open .nav__toggle span::after { top: 0; transform: rotate(-45deg); background: var(--gold-light); }

.nav__backdrop { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 6rem;
  overflow: hidden;
  isolation: isolate;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -3;
  background: radial-gradient(120% 90% at 50% 0%, #142055 0%, #0A102C 45%, #070b1f 100%);
}
.hero__pattern {
  position: absolute;
  inset: -10% 0 0 0;
  z-index: -2;
  background-image: url("../img/pattern.jpg");
  background-size: 620px;
  opacity: 0.10;
  mix-blend-mode: screen;
  -webkit-mask-image: radial-gradient(90% 80% at 50% 30%, #000 30%, transparent 78%);
  mask-image: radial-gradient(90% 80% at 50% 30%, #000 30%, transparent 78%);
}
.hero__glow {
  position: absolute;
  left: 50%;
  top: 34%;
  width: min(760px, 90vw);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  z-index: -1;
  background: radial-gradient(circle, rgba(198, 138, 60, 0.28) 0%, rgba(198, 138, 60, 0.06) 40%, transparent 66%);
  filter: blur(10px);
  animation: pulse 7s var(--ease) infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.75; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.08); }
}

.hero__inner {
  text-align: center;
  max-width: 940px;
  margin-inline: auto;
}
.hero__mark {
  width: clamp(64px, 10vw, 96px);
  margin: 0 auto 1.8rem;
  filter: drop-shadow(0 8px 24px rgba(198, 138, 60, 0.35));
}
.hero__kicker { margin-bottom: 1.6rem; justify-content: center; }

.hero h1 {
  font-size: clamp(2.6rem, 5.2vw, 5.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.98;
  overflow-wrap: break-word;
}
.hero h1 .line { display: block; }
.hero h1 .accent {
  background: var(--grad-gold-soft);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  margin: 1.8rem auto 0;
  max-width: 560px;
  color: var(--text-soft);
  font-size: clamp(1.05rem, 1rem + 0.5vw, 1.28rem);
}
.hero__actions {
  margin-top: 2.5rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 1.8rem;
  transform: translateX(-50%);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.hero__scroll span {
  width: 1px;
  height: 42px;
  background: linear-gradient(var(--gold-light), transparent);
  animation: scrolldot 2.4s var(--ease) infinite;
  transform-origin: top;
}
@keyframes scrolldot {
  0% { transform: scaleY(0); opacity: 0; }
  40% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1) translateY(6px); opacity: 0; }
}

/* ---------- Strip / Countdown ---------- */
.strip {
  border-block: 1px solid var(--line-soft);
  background: linear-gradient(180deg, var(--navy-900), var(--navy));
}
.strip__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem clamp(2rem, 5vw, 4rem);
  padding-block: clamp(1.8rem, 3vw, 2.4rem);
}
.strip__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem 2.4rem;
}
.fact { display: flex; align-items: center; gap: 0.85rem; }
.fact__icon {
  width: 42px;
  height: 42px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--mist);
  color: var(--gold-light);
}
.fact__icon svg { width: 20px; height: 20px; }
.fact__label { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-dim); }
.fact__value { font-family: var(--font-display); font-weight: 600; font-size: 1.02rem; }

.countdown { display: flex; gap: 0.6rem; }
.countdown__cell {
  min-width: 62px;
  padding: 0.6rem 0.4rem;
  text-align: center;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--navy-700), var(--navy-800));
}
.countdown__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  line-height: 1;
  background: var(--grad-gold-soft);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}
.countdown__label {
  margin-top: 0.35rem;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ---------- O Evento ---------- */
.event {
  background:
    radial-gradient(80% 60% at 85% 0%, rgba(198, 138, 60, 0.06), transparent 60%),
    var(--navy);
}
.event__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}
.event__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.9);
}
.event__media img {
  width: 100%;
  aspect-ratio: 4 / 3.4;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}
.event__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10, 16, 44, 0.55));
  pointer-events: none;
}
.event__media:hover img { transform: scale(1.05); }
.event__badge {
  position: absolute;
  left: 1.2rem;
  bottom: 1.2rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1rem;
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  background: rgba(9, 13, 33, 0.6);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.event__badge span { color: var(--gold-light); }

.event__lead {
  font-size: clamp(1.15rem, 1rem + 0.8vw, 1.5rem);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.4;
}
.event__text { margin-top: 1.2rem; color: var(--text-soft); }

.stats {
  margin-top: 2.2rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  background: var(--navy-800);
  padding: 1.2rem 1.3rem;
}
.stat__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--gold-light);
}
.stat__label { font-size: 0.82rem; color: var(--text-dim); margin-top: 0.15rem; }

/* ---------- Pilares ---------- */
.pillars { background: linear-gradient(180deg, var(--navy), var(--navy-900)); }
.pillars__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}
.pillar {
  position: relative;
  padding: 2.2rem 1.9rem 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background: linear-gradient(180deg, var(--navy-800), var(--navy-900));
  overflow: hidden;
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.pillar::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: var(--grad-gold);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.pillar:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.85);
}
.pillar:hover::before { opacity: 1; }
.pillar__icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: var(--mist);
  border: 1px solid var(--line);
  color: var(--gold-light);
  margin-bottom: 1.5rem;
  transition: transform 0.5s var(--ease);
}
.pillar__icon svg { width: 26px; height: 26px; }
.pillar:hover .pillar__icon { transform: scale(1.08) rotate(-4deg); }
.pillar__name {
  font-size: 1.4rem;
  letter-spacing: 0.01em;
  margin-bottom: 0.6rem;
}
.pillar__desc { color: var(--text-soft); font-size: 0.98rem; }
.pillar__tag {
  position: absolute;
  top: 1.6rem;
  right: 1.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--text-dim);
}

/* ---------- Porque Participar ---------- */
.why { background: var(--navy-900); position: relative; overflow: hidden; }
.why__pattern {
  position: absolute;
  inset: 0;
  background-image: url("../img/pattern.jpg");
  background-size: 520px;
  opacity: 0.05;
  pointer-events: none;
}
.why__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  position: relative;
}
.reason {
  position: relative;
  padding: 2.4rem 2rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(27, 38, 83, 0.35), rgba(13, 21, 51, 0.35));
  border: 1px solid var(--line-soft);
  overflow: hidden;
  transition: transform 0.5s var(--ease), background 0.5s var(--ease), border-color 0.5s var(--ease);
}
.reason::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 3px;
  width: 100%;
  background: var(--grad-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease);
}
.reason:hover {
  transform: translateY(-6px);
  border-color: var(--line);
  background: linear-gradient(180deg, rgba(27, 38, 83, 0.55), rgba(13, 21, 51, 0.5));
}
.reason:hover::after { transform: scaleX(1); }
.reason__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.6rem;
  line-height: 1;
  background: var(--grad-gold-soft);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.9;
}
.reason__title { font-size: 1.35rem; margin: 1.1rem 0 0.7rem; }
.reason__desc { color: var(--text-soft); font-size: 0.98rem; }

/* ---------- CTA final ---------- */
.cta { position: relative; overflow: hidden; isolation: isolate; }
.cta__panel {
  position: relative;
  border-radius: clamp(24px, 4vw, 40px);
  padding: clamp(3rem, 7vw, 6rem) clamp(1.5rem, 5vw, 4rem);
  text-align: center;
  background:
    radial-gradient(90% 120% at 50% 0%, rgba(198, 138, 60, 0.22), transparent 55%),
    linear-gradient(180deg, var(--navy-700), var(--navy-900));
  border: 1px solid var(--line);
  overflow: hidden;
}
.cta__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../img/pattern.jpg");
  background-size: 500px;
  opacity: 0.06;
  z-index: -1;
}
.cta__mark { width: 60px; margin: 0 auto 1.5rem; }
.cta h2 {
  font-size: clamp(2rem, 1.3rem + 3.4vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  max-width: 16ch;
  margin-inline: auto;
}
.cta__sub {
  margin: 1.4rem auto 0;
  max-width: 540px;
  color: var(--text-soft);
  font-size: clamp(1.02rem, 1rem + 0.4vw, 1.2rem);
}
.cta__actions {
  margin-top: 2.4rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.cta__note {
  margin-top: 1.6rem;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--navy-900);
  border-top: 1px solid var(--line-soft);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--line-soft);
}
.footer__brand { }
.footer__brand .brand { margin-bottom: 1.2rem; }
.brand--lg { gap: 0.8rem; }
.brand--lg .brand__icon { width: 40px; }
.brand--lg .brand__text { font-size: 1.35rem; letter-spacing: 0.14em; }
.footer__brand p { color: var(--text-dim); max-width: 34ch; font-size: 0.95rem; }
.footer__col h4 {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 1.1rem;
}
.footer__col ul { list-style: none; padding: 0; display: grid; gap: 0.7rem; }
.footer__col a, .footer__col li { color: var(--text-soft); font-size: 0.95rem; transition: color 0.3s var(--ease); }
.footer__col a:hover { color: var(--gold-light); }

.socials { display: flex; gap: 0.7rem; margin-top: 0.4rem; }
.socials a {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--line-soft);
  color: var(--text-soft);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), color 0.4s var(--ease), background 0.4s var(--ease);
}
.socials a:hover {
  transform: translateY(-3px);
  color: var(--gold-light);
  border-color: var(--line);
  background: var(--mist);
}
.socials svg { width: 19px; height: 19px; }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 1.8rem;
  color: var(--text-dim);
  font-size: 0.85rem;
}
.footer__bottom a:hover { color: var(--gold-light); }

/* ---------- Reveal Animations ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--delay, 0s);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsivo ---------- */
@media (max-width: 940px) {
  .event__grid { grid-template-columns: 1fr; }
  .event__media { order: -1; }
  .pillars__grid,
  .why__grid { grid-template-columns: 1fr; }
  .strip__inner { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .nav__cta-desktop { display: none; }
  .nav__toggle { display: inline-flex; position: relative; z-index: 120; }

  /* ---- Menu lateral (sidebar) ---- */
  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(84vw, 330px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 5.5rem var(--gutter) 2.5rem;
    background:
      radial-gradient(115% 50% at 50% 0%, rgba(198, 138, 60, 0.14) 0%, transparent 60%),
      radial-gradient(130% 85% at 50% 0%, #142055 0%, #0A102C 45%, #070b1f 100%);
    border-left: 1px solid var(--line);
    box-shadow: -30px 0 70px -30px rgba(0, 0, 0, 0.85);
    transform: translateX(105%);
    transition: transform 0.45s var(--ease);
    z-index: 110;
    isolation: isolate;
    overflow: hidden;
    overscroll-behavior: contain;
  }
  /* Textura de padrão subtil (como no hero) */
  .nav__links::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -2;
    background-image: url("../img/pattern.jpg");
    background-size: 440px;
    opacity: 0.08;
    mix-blend-mode: screen;
    -webkit-mask-image: radial-gradient(115% 55% at 50% 0%, #000 20%, transparent 78%);
    mask-image: radial-gradient(115% 55% at 50% 0%, #000 20%, transparent 78%);
    pointer-events: none;
  }
  /* Marca de água do logótipo */
  .nav__links::after {
    content: "";
    position: absolute;
    right: -15%;
    bottom: -10%;
    width: 78%;
    aspect-ratio: 1;
    z-index: -1;
    background: url("../img/icon-gold.png") no-repeat center / contain;
    opacity: 0.08;
    pointer-events: none;
  }
  .nav.open .nav__links { transform: translateX(0); }

  .nav__links li:not(.nav__links-cta) a {
    display: block;
    font-size: 1.06rem;
    color: var(--text-soft);
    padding-block: 1.05rem;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav__links li:not(.nav__links-cta) a::after { display: none; }
  .nav__links li:not(.nav__links-cta) a:hover { color: var(--text); }

  .nav__links-cta { display: block; margin-top: 1.6rem; }
  .nav__links-cta a { display: flex; padding-block: 0.95rem; color: #241606; }

  /* Fundo escurecido atrás da sidebar */
  .nav__backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(4, 7, 18, 0.58);
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s var(--ease), visibility 0.4s var(--ease);
    z-index: 105;
  }
  .nav.open .nav__backdrop { opacity: 1; visibility: visible; }

  body.nav-open { overflow: hidden; }

  .countdown { flex-wrap: wrap; justify-content: center; }
  .countdown__cell { flex: 1 1 62px; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { justify-content: center; text-align: center; }
}

/* Hero title: escala segura em ecrãs estreitos */
@media (max-width: 560px) {
  .hero h1 { font-size: clamp(1.7rem, 7vw, 2.4rem); letter-spacing: -0.02em; }
  .hero { padding-top: 5rem; }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}