/* ===================================================
   Iron Sisters — Estilos
   Tema: preto & vermelho · landing page única
   =================================================== */

:root {
  --black: #0a0a0a;
  --black-2: #141414;
  --black-3: #1c1c1c;
  --red: #e30613;
  --red-2: #ff1e2d;
  --white: #ffffff;
  --gray: #b3b3b3;
  --gray-dark: #6f6f6f;
  --border: rgba(255, 255, 255, 0.08);

  --font-display: "Bebas Neue", sans-serif;
  --font-head: "Oswald", sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --container: 1180px;
  --radius: 14px;
  --shadow-red: 0 10px 40px -10px rgba(227, 6, 19, 0.55);
  --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--gray);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.text-red { color: var(--red-2); }
.muted { color: var(--gray-dark); }
.lead { font-size: 1.1rem; color: var(--gray); margin-bottom: 14px; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 13px 28px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--red);
  color: var(--white);
  box-shadow: var(--shadow-red);
}
.btn--primary:hover { background: var(--red-2); transform: translateY(-2px); box-shadow: 0 14px 44px -8px rgba(255,30,45,0.7); }
.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.25);
}
.btn--ghost:hover { border-color: var(--red-2); color: var(--red-2); transform: translateY(-2px); }
.btn--lg { padding: 16px 36px; font-size: 1.05rem; }
.btn--block { width: 100%; }

/* ---------- Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 18px 0;
  transition: var(--transition);
}
.header--scrolled {
  background: rgba(10,10,10,0.96);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand__logo { height: 46px; width: auto; }
.brand__name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 1px;
  color: var(--white);
}
.brand__name strong { color: var(--red-2); font-weight: 400; }

.nav { display: flex; align-items: center; gap: 28px; }
.nav__link {
  font-family: var(--font-head);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  color: var(--gray);
  transition: var(--transition);
  position: relative;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--red-2);
  transition: var(--transition);
}
.nav__link:hover { color: var(--white); }
.nav__link:hover::after { width: 100%; }
.nav__cta { color: var(--white) !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  width: 26px; height: 3px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: url("https://images.unsplash.com/photo-1534438327276-14e5300c3a48?auto=format&fit=crop&w=1600&q=80") center/cover no-repeat fixed;
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0.7) 50%, rgba(227,6,19,0.35) 100%);
}
.hero__content { position: relative; z-index: 2; max-width: 720px; padding-top: 80px; }
.hero__eyebrow {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--red-2);
  font-weight: 600;
  margin-bottom: 14px;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 11vw, 7.5rem);
  line-height: 0.92;
  color: var(--white);
  letter-spacing: 2px;
  margin-bottom: 22px;
}
.hero__subtitle { font-size: clamp(1rem, 2vw, 1.25rem); max-width: 560px; margin-bottom: 36px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__scroll {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 44px;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 999px;
  z-index: 2;
}
.hero__scroll span {
  position: absolute;
  top: 8px; left: 50%;
  width: 4px; height: 8px;
  margin-left: -2px;
  background: var(--red-2);
  border-radius: 2px;
  animation: scrollDot 1.6s infinite;
}
@keyframes scrollDot {
  0% { opacity: 0; transform: translateY(0); }
  40% { opacity: 1; }
  80%, 100% { opacity: 0; transform: translateY(16px); }
}

/* ---------- Sections base ---------- */
.section { padding: 100px 0; }
.section__head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.eyebrow {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--red-2);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 12px;
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section__desc { color: var(--gray); }

/* ---------- Sobre ---------- */
.sobre { background: var(--black); }
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.sobre__text .btn { margin-top: 24px; }
.sobre__image img {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  height: 100%;
  object-fit: cover;
  filter: grayscale(15%) contrast(1.05);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 80px;
  padding: 44px 32px;
  background: linear-gradient(135deg, var(--black-2), var(--black-3));
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.stat { text-align: center; }
.stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  color: var(--red-2);
  line-height: 1;
}
.stat__label { font-family: var(--font-head); text-transform: uppercase; letter-spacing: 1px; font-size: 0.85rem; color: var(--gray); }

/* ---------- Modalidades ---------- */
.modalidades { background: var(--black-2); }
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--black);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; left: 0; top: 0;
  width: 100%; height: 4px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.card:hover { transform: translateY(-8px); border-color: rgba(227,6,19,0.4); box-shadow: var(--shadow-red); }
.card:hover::before { transform: scaleX(1); }
.card__icon { font-size: 2.6rem; margin-bottom: 16px; }
.card__title { font-family: var(--font-head); text-transform: uppercase; color: var(--white); font-size: 1.3rem; margin-bottom: 10px; letter-spacing: 0.5px; }
.card__text { font-size: 0.95rem; }

/* ---------- Planos ---------- */
.planos { background: var(--black); }
.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  align-items: stretch;
}
.plan {
  background: var(--black-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}
.plan:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.18); }
.plan--featured {
  background: linear-gradient(160deg, #1f0608, var(--black-2));
  border-color: var(--red);
  box-shadow: var(--shadow-red);
}
.plan--featured:hover { transform: translateY(-6px); }
.plan--vip {
  background: linear-gradient(160deg, #16110a, var(--black-2));
  border-color: rgba(212, 175, 55, 0.5);
}
.plan__badge {
  position: absolute; top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--red);
  color: var(--white);
  font-family: var(--font-head);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 1px;
  padding: 6px 18px;
  border-radius: 999px;
  white-space: nowrap;
}
.plan__name { font-family: var(--font-head); text-transform: uppercase; color: var(--white); font-size: 1.4rem; letter-spacing: 1px; margin-bottom: 12px; }
.plan__price {
  font-family: var(--font-display);
  font-size: 3.2rem;
  color: var(--white);
  line-height: 1;
  margin-bottom: 6px;
}
.plan__cur { font-size: 1.3rem; vertical-align: super; color: var(--red-2); margin-right: 4px; }
.plan__per { font-family: var(--font-body); font-size: 1rem; color: var(--gray-dark); }
.plan__hint { font-size: 0.85rem; color: var(--gray-dark); margin-bottom: 22px; }
.plan__badge--vip { background: linear-gradient(90deg, #c9a227, #f3d27a); color: #1a1400; }
.plan__list { margin-bottom: 28px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.plan__list li { padding-left: 26px; position: relative; font-size: 0.95rem; }
.plan__list li::before {
  content: "✓";
  position: absolute; left: 0;
  color: var(--red-2);
  font-weight: 700;
}
.planos__note { text-align: center; margin-top: 28px; font-size: 0.85rem; }
.planos__note code { color: var(--gray); background: var(--black-3); padding: 2px 6px; border-radius: 4px; }

/* ---------- Galeria ---------- */
.galeria { background: var(--black-2); }
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.gallery__item {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4 / 3;
}
.gallery__item::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(227,6,19,0.45));
  opacity: 0;
  transition: var(--transition);
}
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; filter: grayscale(20%); }
.gallery__item:hover img { transform: scale(1.1); filter: grayscale(0); }
.gallery__item:hover::after { opacity: 1; }

/* ---------- Comece (3 passos) ---------- */
.comece { background: var(--black-2); }
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step {
  background: var(--black);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  position: relative;
  transition: var(--transition);
}
.step:hover { transform: translateY(-6px); border-color: rgba(227,6,19,0.4); }
.step__num {
  display: block;
  font-family: var(--font-display);
  font-size: 3.4rem;
  line-height: 1;
  color: var(--red-2);
  margin-bottom: 14px;
}
.step__title { font-family: var(--font-head); text-transform: uppercase; color: var(--white); font-size: 1.25rem; letter-spacing: 0.5px; margin-bottom: 10px; }
.step__text { font-size: 0.95rem; }
.comece__cta { text-align: center; margin-top: 44px; }

/* ---------- Contato ---------- */
.contato { background: var(--black); }
.contato__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
}
.form { background: var(--black-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form__field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 18px; }
.form__field span { font-family: var(--font-head); text-transform: uppercase; font-size: 0.8rem; letter-spacing: 1px; color: var(--gray); }
.form__field input,
.form__field textarea {
  background: var(--black);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 13px 15px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
  resize: vertical;
}
.form__field input:focus,
.form__field textarea:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 3px rgba(227,6,19,0.18); }
.form__field input.invalid,
.form__field textarea.invalid { border-color: var(--red-2); }
.form__feedback { margin-top: 14px; font-size: 0.95rem; min-height: 1.2em; text-align: center; }
.form__feedback.success { color: #3ad15a; }
.form__feedback.error { color: var(--red-2); }

.info-list { display: flex; flex-direction: column; gap: 22px; margin-bottom: 28px; }
.info-list li { display: flex; gap: 16px; align-items: flex-start; }
.info-list__ic { font-size: 1.5rem; line-height: 1.2; }
.info-list strong { color: var(--white); font-family: var(--font-head); text-transform: uppercase; font-size: 0.9rem; letter-spacing: 0.5px; }
.info-list a:hover { color: var(--red-2); }

.social { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.social__link {
  font-family: var(--font-head);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 1px;
  padding: 9px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: var(--transition);
  color: var(--gray);
}
.social__link:hover { background: var(--red); color: var(--white); border-color: var(--red); }

.map { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.map iframe { width: 100%; height: 220px; border: 0; display: block; filter: grayscale(40%) invert(0.92) contrast(0.9); }

/* ---------- Footer ---------- */
.footer { background: var(--black-2); border-top: 1px solid var(--border); padding: 44px 0; }
.footer__inner { display: flex; flex-direction: column; align-items: center; gap: 22px; text-align: center; }
.footer__nav { display: flex; gap: 24px; flex-wrap: wrap; justify-content: center; }
.footer__nav a { font-family: var(--font-head); text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.5px; color: var(--gray); transition: var(--transition); }
.footer__nav a:hover { color: var(--red-2); }
.footer__copy { font-size: 0.85rem; color: var(--gray-dark); }

/* ---------- WhatsApp flutuante ---------- */
.whatsapp-float {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 90;
  width: 58px; height: 58px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.7rem;
  background: var(--red);
  border-radius: 50%;
  box-shadow: var(--shadow-red);
  transition: var(--transition);
  animation: pulse 2.4s infinite;
}
.whatsapp-float:hover { background: var(--red-2); transform: scale(1.08); }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(227,6,19,0.6); }
  70% { box-shadow: 0 0 0 16px rgba(227,6,19,0); }
  100% { box-shadow: 0 0 0 0 rgba(227,6,19,0); }
}

/* ---------- Animação reveal ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* =================================================
   Responsivo
   ================================================= */
@media (max-width: 940px) {
  .grid-2 { grid-template-columns: 1fr; gap: 36px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .plans { grid-template-columns: repeat(2, 1fr); max-width: 640px; margin: 0 auto; }
  .plan--featured { transform: scale(1); }
  .plan--featured:hover { transform: translateY(-6px); }
  .contato__grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}

@media (max-width: 940px) {
  .hamburger { display: flex; }
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(78%, 320px);
    flex-direction: column;
    justify-content: center;
    gap: 30px;
    background: rgba(10,10,10,0.98);
    backdrop-filter: blur(12px);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform 0.35s ease;
    z-index: 99;
  }
  .nav.is-open { transform: translateX(0); }
  .nav__link { font-size: 1.2rem; }
  .hero { background-attachment: scroll; }
}

@media (max-width: 520px) {
  .section { padding: 70px 0; }
  .stats { grid-template-columns: 1fr 1fr; padding: 30px 18px; }
  .cards { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .form { padding: 26px 20px; }
  .brand__name { font-size: 1.15rem; }
}

@media (max-width: 360px) {
  .container { padding: 0 16px; }
  .section__title { font-size: 2rem; }
  .hero__title { font-size: 3rem; }
  .plan__price { font-size: 2.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}