/* ===================================================================
   VIGOR PERSONAL TRAINER — DESIGN SYSTEM
   =================================================================== */

:root {
  /* Color */
  --bg: #0a0b0d;
  --bg-elevated: #131519;
  --surface: #191c21;
  --surface-glass: rgba(255, 255, 255, 0.045);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);

  --text-primary: #f5f6f7;
  --text-secondary: #a7adb6;
  --text-tertiary: #6d7580;

  --accent: #d4ff3f;
  --accent-dark: #a9d92f;
  --accent-ink: #0f1400;
  --accent-2: #ff6b4a;

  --gradient-accent: linear-gradient(135deg, #d4ff3f 0%, #7fe87a 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(10, 11, 13, 0.35) 0%, rgba(10, 11, 13, 0.55) 55%, #0a0b0d 100%);

  /* Type */
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  /* Spacing scale */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 7rem;

  /* Radius / shadow */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 0 1px rgba(212, 255, 63, 0.25), 0 8px 30px rgba(212, 255, 63, 0.12);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --container: 1200px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.15; letter-spacing: -0.01em; }

.skip-link {
  position: absolute; top: -100%; left: var(--space-2);
  background: var(--accent); color: var(--accent-ink);
  padding: 0.75rem 1.25rem; border-radius: var(--radius-sm);
  z-index: 1000; font-weight: 600; transition: top 0.2s var(--ease);
}
.skip-link:focus { top: var(--space-2); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.container { max-width: var(--container); margin-inline: auto; padding-inline: var(--space-3); }
.container--narrow { max-width: 760px; }

.text-accent { color: var(--accent); }
.icon { width: 1.1em; height: 1.1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem; padding: 0.9rem 1.75rem; border-radius: var(--radius-full);
  font-weight: 600; font-size: 0.95rem; white-space: nowrap;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease), border-color .25s var(--ease);
  border: 1px solid transparent;
}
.btn--primary { background: var(--gradient-accent); color: var(--accent-ink); box-shadow: var(--shadow-glow); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 34px rgba(212, 255, 63, 0.28); }
.btn--ghost { background: var(--surface-glass); color: var(--text-primary); border-color: var(--border-strong); backdrop-filter: blur(8px); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn--outline { background: transparent; color: var(--text-primary); border-color: var(--border-strong); }
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }
.btn--sm { padding: 0.6rem 1.25rem; font-size: 0.85rem; }
.btn--lg { padding: 1.05rem 2.1rem; font-size: 1rem; }
.btn--block { width: 100%; }

/* ---------- Header ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 500;
  padding-block: 1.25rem;
  transition: padding 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.is-scrolled {
  padding-block: 0.85rem;
  background: rgba(10, 11, 13, 0.75);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }

.brand { display: flex; align-items: center; gap: 0.65rem; }
.brand__mark {
  width: 38px; height: 38px; border-radius: 10px; background: var(--gradient-accent);
  color: var(--accent-ink); display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 800; font-size: 1.1rem;
}
.brand__name { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; letter-spacing: 0.02em; line-height: 1.1; display: flex; flex-direction: column; }
.brand__suffix { font-family: var(--font-body); font-weight: 500; font-size: 0.65rem; letter-spacing: 0.08em; color: var(--text-tertiary); text-transform: uppercase; }

.nav__list { display: flex; gap: var(--space-4); }
.nav__link { font-size: 0.92rem; font-weight: 500; color: var(--text-secondary); position: relative; padding-block: 0.3rem; transition: color 0.2s; }
.nav__link::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--accent); transition: width 0.25s var(--ease); }
.nav__link:hover { color: var(--text-primary); }
.nav__link:hover::after { width: 100%; }

.header__actions { display: flex; align-items: center; gap: var(--space-3); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 26px; }
.nav-toggle span { display: block; height: 2px; background: var(--text-primary); border-radius: 2px; transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0; z-index: 490; background: rgba(10, 11, 13, 0.98);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
}
.mobile-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-nav__list { display: flex; flex-direction: column; align-items: center; gap: var(--space-3); text-align: center; }
.mobile-nav__link { font-family: var(--font-display); font-size: 1.6rem; font-weight: 600; }

/* ---------- Section shell ---------- */
.section { padding-block: var(--space-7); }
.section--alt { background: var(--bg-elevated); }
.section--dark { background: #060708; overflow: hidden; }
.section__head { max-width: 620px; margin-bottom: var(--space-5); }
.section__head .section__lead { margin-top: var(--space-2); }
.section__title { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
.section__lead { color: var(--text-secondary); font-size: 1.05rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: var(--space-2);
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--accent); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; padding-top: 6rem; overflow: hidden; }
.hero__media { position: absolute; inset: 0; z-index: 0; background: #05060a; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; opacity: 0.55; }
.hero__overlay { position: absolute; inset: 0; background: var(--gradient-overlay); }
.hero__content { position: relative; z-index: 1; max-width: 780px; }
.hero__title { font-size: clamp(2.4rem, 6vw, 4.4rem); margin-bottom: var(--space-3); }
.hero__subtitle { font-size: clamp(1rem, 1.6vw, 1.2rem); color: var(--text-secondary); max-width: 620px; margin-bottom: var(--space-4); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-6); }

.hero__stats { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.hero__stat-number { font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800; color: var(--accent); }
.hero__stat-label { color: var(--text-secondary); font-size: 0.85rem; margin-top: 0.2rem; }

.hero__scroll { position: absolute; bottom: var(--space-3); left: 50%; transform: translateX(-50%); z-index: 1; }
.hero__scroll span { display: block; width: 22px; height: 36px; border: 2px solid var(--border-strong); border-radius: var(--radius-full); position: relative; }
.hero__scroll span::before {
  content: ""; position: absolute; top: 6px; left: 50%; width: 4px; height: 8px; background: var(--accent);
  border-radius: 2px; transform: translateX(-50%); animation: scrollDot 1.8s infinite var(--ease);
}
@keyframes scrollDot { 0% { opacity: 1; top: 6px; } 70% { opacity: 0; top: 18px; } 100% { opacity: 0; top: 6px; } }

/* ---------- About ---------- */
.about__grid { display: grid; grid-template-columns: 1fr; gap: var(--space-6); align-items: start; }
.about__media { position: relative; }
.about__media img { border-radius: var(--radius-lg); aspect-ratio: 3/4; object-fit: cover; object-position: center bottom; box-shadow: var(--shadow-md); }
.about__badge {
  position: absolute; bottom: -1.25rem; left: -1.25rem; background: var(--surface);
  border: 1px solid var(--border-strong); border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3); display: flex; flex-direction: column;
  box-shadow: var(--shadow-md); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.about__badge strong { font-family: var(--font-display); font-size: 1.8rem; color: var(--accent); line-height: 1; }
.about__badge span { font-size: 0.78rem; color: var(--text-secondary); margin-top: 0.3rem; }

.checklist { display: flex; flex-direction: column; gap: 0.85rem; margin-top: var(--space-3); }
.checklist li { display: flex; align-items: flex-start; gap: 0.65rem; color: var(--text-secondary); }
.checklist .icon { color: var(--accent); margin-top: 0.2rem; }
.about__content p { color: var(--text-secondary); margin-bottom: var(--space-2); }

/* ---------- Cards / grid ---------- */
.grid { display: grid; gap: var(--space-3); }
.grid--3 { grid-template-columns: repeat(1, 1fr); }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--space-4); transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: var(--border-strong); background: var(--bg-elevated); }
.card__icon {
  width: 52px; height: 52px; border-radius: var(--radius-sm); background: rgba(212, 255, 63, 0.1);
  color: var(--accent); display: grid; place-items: center; margin-bottom: var(--space-3);
}
.card__icon svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card__title { font-size: 1.15rem; margin-bottom: 0.5rem; }
.card__text { color: var(--text-secondary); font-size: 0.95rem; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: 1fr; gap: var(--space-3); counter-reset: step; }
.steps__item { position: relative; padding: var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); }
.steps__number { font-family: var(--font-display); font-size: 2.2rem; font-weight: 800; color: transparent; -webkit-text-stroke: 1.5px var(--accent); display: block; margin-bottom: var(--space-2); }
.steps__title { font-size: 1.1rem; margin-bottom: 0.4rem; }
.steps__text { color: var(--text-secondary); font-size: 0.92rem; }

/* ---------- Testimonials ---------- */
.testimonials { position: relative; }
.testimonials__track {
  display: flex;
  gap: var(--space-3);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.testimonial {
  flex-shrink: 0;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--space-5); display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-3);
  opacity: 0.3; transform: scale(0.94);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s;
}
.testimonial.is-active { opacity: 1; transform: scale(1); border-color: var(--border-strong); }
.testimonial__avatar {
  width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; color: var(--accent-ink);
  background: var(--avatar-color, var(--accent));
}
.testimonial__text { font-size: 1.15rem; line-height: 1.55; }
.testimonial__meta { display: flex; flex-direction: column; color: var(--text-secondary); font-size: 0.9rem; }
.testimonial__meta strong { color: var(--text-primary); }

.testimonials__nav { display: flex; align-items: center; justify-content: center; gap: var(--space-3); margin-top: var(--space-4); }
.testimonials__arrow {
  width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border-strong);
  background: var(--surface); display: grid; place-items: center;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
}
.testimonials__arrow:hover { border-color: var(--accent); color: var(--accent); transform: scale(1.08); }
.testimonials__arrow .icon { width: 18px; height: 18px; }
.testimonials__controls { display: flex; justify-content: center; gap: 0.6rem; }
.testimonials__dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); transition: background 0.25s, transform 0.25s; }
.testimonials__dot.is-active { background: var(--accent); transform: scale(1.3); }

/* ---------- Pricing ---------- */
.price-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); position: relative;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.price-card:hover { transform: translateY(-6px); }
.price-card--highlight { border-color: var(--accent); background: linear-gradient(180deg, rgba(212,255,63,0.07), var(--surface) 40%); box-shadow: var(--shadow-glow); }
.price-card__tag {
  position: absolute; top: -12px; left: var(--space-4); background: var(--gradient-accent); color: var(--accent-ink);
  font-size: 0.72rem; font-weight: 700; padding: 0.3rem 0.8rem; border-radius: var(--radius-full); letter-spacing: 0.04em;
}
.price-card__name { font-size: 1.3rem; }
.price-card__desc { color: var(--text-secondary); font-size: 0.9rem; min-height: 2.4em; }
.price-card__price { font-family: var(--font-display); font-size: 2.4rem; font-weight: 800; margin-block: var(--space-1); }
.price-card__price span { font-family: var(--font-body); font-size: 0.95rem; font-weight: 500; color: var(--text-secondary); }
.price-card__list { display: flex; flex-direction: column; gap: 0.55rem; margin-bottom: var(--space-2); flex-grow: 1; }
.price-card__list li { color: var(--text-secondary); font-size: 0.9rem; padding-left: 1.3rem; position: relative; }
.price-card__list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* ---------- Accordion ---------- */
.accordion__item { border-bottom: 1px solid var(--border); }
.accordion__trigger {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: var(--space-2);
  padding-block: var(--space-3); text-align: left; font-family: var(--font-display); font-size: 1.05rem; font-weight: 600;
}
.accordion__chevron { transition: transform 0.3s var(--ease); color: var(--accent); }
.accordion__trigger[aria-expanded="true"] .accordion__chevron { transform: rotate(180deg); }
.accordion__panel { max-height: 0; overflow: hidden; transition: max-height 0.35s var(--ease); }
.accordion__panel p { color: var(--text-secondary); padding-bottom: var(--space-3); max-width: 640px; }

/* ---------- CTA / Contact ---------- */
.cta__inner { display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
.contact-info { display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-4); }
.contact-info li { display: flex; align-items: center; gap: 0.7rem; color: var(--text-secondary); }
.contact-info .icon { color: var(--accent); }

.form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); }
.form__row { display: grid; grid-template-columns: 1fr; gap: var(--space-2); }
.form__field { display: flex; flex-direction: column; gap: 0.4rem; font-size: 0.85rem; color: var(--text-secondary); }
.form__field input, .form__field select, .form__field textarea {
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 0.8rem 1rem; color: var(--text-primary); transition: border-color 0.2s;
}
.form__field input:focus, .form__field select:focus, .form__field textarea:focus { border-color: var(--accent); outline: none; }
.form__note { font-size: 0.78rem; color: var(--text-tertiary); text-align: center; }
.form__field.has-error input, .form__field.has-error select { border-color: var(--accent-2); }
.form__field.has-error .form__error { display: block; }
.form__error { display: none; color: var(--accent-2); font-size: 0.78rem; margin-top: 0.25rem; }

/* ---------- Footer ---------- */
.footer { background: #060708; border-top: 1px solid var(--border); padding-top: var(--space-6); }
.footer__inner { display: grid; grid-template-columns: 1fr; gap: var(--space-5); padding-bottom: var(--space-5); }
.footer__brand p { color: var(--text-secondary); font-size: 0.9rem; margin-top: var(--space-2); max-width: 320px; }
.footer__col { display: flex; flex-direction: column; gap: 0.65rem; }
.footer__col h3 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-tertiary); margin-bottom: 0.3rem; }
.footer__col a, .footer__col span { color: var(--text-secondary); font-size: 0.92rem; transition: color 0.2s; }
.footer__col a:hover { color: var(--accent); }
.footer__social { display: flex; gap: 0.75rem; }
.footer__social a { width: 38px; height: 38px; border: 1px solid var(--border); border-radius: 50%; display: grid; place-items: center; transition: border-color 0.2s, color 0.2s; }
.footer__social a:hover { border-color: var(--accent); color: var(--accent); }
.footer__bottom { border-top: 1px solid var(--border); padding-block: var(--space-3); text-align: center; }
.footer__bottom p { color: var(--text-tertiary); font-size: 0.82rem; }

/* ---------- Floating elements ---------- */
.whatsapp-float {
  position: fixed; bottom: var(--space-3); right: var(--space-3); z-index: 400;
  width: 58px; height: 58px; border-radius: 50%; background: #25d366; color: #06210f;
  display: grid; place-items: center; box-shadow: var(--shadow-md);
  transition: transform 0.25s var(--ease);
}
.whatsapp-float svg { width: 28px; height: 28px; fill: currentColor; stroke: none; }
.whatsapp-float:hover { transform: scale(1.08); }

.back-to-top {
  position: fixed; bottom: var(--space-3); right: calc(var(--space-3) + 70px); z-index: 400;
  width: 46px; height: 46px; border-radius: 50%; background: var(--surface); border: 1px solid var(--border-strong);
  display: grid; place-items: center; opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s, border-color 0.2s;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { border-color: var(--accent); color: var(--accent); }
.back-to-top .icon { width: 20px; height: 20px; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (min-width: 640px) {
  .form__row { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
  .about__grid { grid-template-columns: 1fr 1.2fr; }
  .about__media img { max-height: 480px; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cta__inner { grid-template-columns: 1fr 1fr; align-items: start; }
  .footer__inner { grid-template-columns: 1.4fr 1fr 1fr; }
}

@media (min-width: 1024px) {
  .nav__list { display: flex; }
  .nav-toggle { display: none; }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .footer__inner { grid-template-columns: 1.6fr 1fr 1fr 1fr; }
}

@media (max-width: 1023px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .header__actions .btn--sm { display: none; }
}

@media (max-width: 639px) {
  .hero__stats { gap: var(--space-3); }
  .about__badge { position: static; margin-top: -2.5rem; margin-inline: var(--space-2); }
}