/* ===========================
   ALPHI GYM — style.css
   =========================== */

:root {
  --red: #D91F26;
  --red-light: #F03038;
  --red-dark: #AA1218;
  --red-glow: rgba(217, 31, 38, 0.18);
  --black: #0A0A0A;
  --dark: #111111;
  --dark2: #1A1A1A;
  --dark3: #222222;
  --gray: #888888;
  --light-gray: #CCCCCC;
  --white: #FFFFFF;
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-red: 0 4px 24px rgba(217,31,38,0.35);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--white);
  overflow-x: hidden;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* BUTTONS */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--red);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.3px;
}
.btn-primary:hover {
  background: var(--red-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-red);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255,255,255,0.3);
  color: var(--white);
  font-weight: 600;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.08);
}
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-full { width: 100%; }

/* NAV */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
}
#navbar.scrolled {
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 12px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 40px;
}
.logo {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 2px;
  color: var(--white);
  flex-shrink: 0;
}
.logo img { height: 44px; width: 44px; display: block; border-radius: 50%; object-fit: cover; }
nav {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
}
nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--light-gray);
  transition: color var(--transition);
  position: relative;
}
nav a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--red);
  transition: width var(--transition);
}
nav a:hover { color: var(--white); }
nav a:hover::after { width: 100%; }
.nav-cta { margin-left: auto; flex-shrink: 0; }
.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 24px;
  cursor: pointer;
  margin-left: auto;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 16px;
  padding: 16px 24px 24px;
  background: var(--dark2);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: 16px; font-weight: 500; color: var(--light-gray); }

/* HERO */
#hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  background: url('hero-bg.jpg') center/cover no-repeat;
  background-color: var(--black);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0,0,0,0.85) 0%,
    rgba(10,10,10,0.7) 50%,
    rgba(217,31,38,0.08) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 140px 24px 80px;
}
.hero-tag {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--red);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(72px, 12vw, 140px);
  line-height: 0.9;
  letter-spacing: 3px;
  color: var(--white);
  margin-bottom: 24px;
}
.hero-content h1 span { color: var(--red); }
.hero-sub {
  font-size: 18px;
  color: var(--light-gray);
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 500px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-family: var(--font-display);
  font-size: 40px;
  letter-spacing: 2px;
  color: var(--red);
}
.stat-label { font-size: 12px; color: var(--gray); font-weight: 500; letter-spacing: 1px; text-transform: uppercase; }
.stat-divider { width: 1px; height: 48px; background: rgba(255,255,255,0.15); }
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.scroll-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--red);
  animation: scrollBounce 1.5s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(12px); opacity: 0.3; }
}

/* SECTION COMMON */
section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--red);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  letter-spacing: 2px;
  color: var(--white);
  margin-bottom: 16px;
}
.section-header h2 span { color: var(--red); }
.section-sub { font-size: 16px; color: var(--gray); max-width: 600px; margin: 0 auto; line-height: 1.6; }

/* WHY — CARDS */
#why { background: var(--dark); }
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: var(--dark2);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(30px);
}
.card.visible {
  opacity: 1;
  transform: translateY(0);
}
.card:hover {
  border-color: var(--red);
  box-shadow: 0 0 32px var(--red-glow);
  transform: translateY(-4px);
}
.card-icon { font-size: 36px; margin-bottom: 16px; }
.card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--white); }
.card p { font-size: 14px; color: var(--gray); line-height: 1.7; }

/* SERVICES */
#services { background: var(--black); }
.services-list { display: flex; flex-direction: column; gap: 2px; }
.service-item {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 40px;
  background: var(--dark2);
  border-radius: var(--radius);
  border-left: 3px solid transparent;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateX(-30px);
}
.service-item.visible { opacity: 1; transform: translateX(0); }
.service-item:hover {
  border-left-color: var(--red);
  background: var(--dark3);
}
.service-num {
  font-family: var(--font-display);
  font-size: 56px;
  color: rgba(217,31,38,0.2);
  flex-shrink: 0;
  width: 80px;
  transition: color var(--transition);
}
.service-item:hover .service-num { color: var(--red); }
.service-body { flex: 1; }
.service-body h3 { font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.service-body p { font-size: 15px; color: var(--gray); line-height: 1.7; max-width: 600px; }
.service-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--red);
  background: var(--red-glow);
  padding: 6px 14px;
  border-radius: 20px;
  flex-shrink: 0;
}

/* CTA BAND */
#cta-band {
  background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 100%);
  padding: 60px 0;
}
.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band-inner h2 {
  font-family: var(--font-display);
  font-size: 40px;
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.cta-band-inner p { font-size: 16px; opacity: 0.9; }
#cta-band .btn-primary {
  background: var(--white);
  color: var(--red);
  flex-shrink: 0;
}
#cta-band .btn-primary:hover { background: var(--black); color: var(--white); }

/* TRAINERS */
#trainers { background: var(--dark); }
.trainers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.trainer-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--dark2);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.06);
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(30px);
}
.trainer-card.visible { opacity: 1; transform: translateY(0); }
.trainer-card:hover { border-color: var(--red); transform: translateY(-4px); }
.trainer-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 2px;
  color: var(--white);
  margin: 0 auto 20px;
}
.trainer-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.trainer-card p { font-size: 13px; color: var(--gray); }

/* TESTIMONIALS */
#testimonials { background: var(--black); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.testimonial-card {
  background: var(--dark2);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(30px);
}
.testimonial-card.visible { opacity: 1; transform: translateY(0); }
.testimonial-card:hover { border-color: rgba(217,31,38,0.3); }
.stars { color: var(--red); font-size: 18px; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial-card > p {
  font-size: 15px;
  color: var(--light-gray);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: 24px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.testimonial-author strong { display: block; font-size: 15px; font-weight: 700; }
.testimonial-author span { font-size: 12px; color: var(--gray); }

/* CONTACT */
#contact { background: var(--dark); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info .section-tag { display: inline-block; margin-bottom: 12px; }
.contact-info h2 {
  font-family: var(--font-display);
  font-size: 48px;
  letter-spacing: 2px;
  margin-bottom: 40px;
}
.contact-info h2 span { color: var(--red); }
.contact-items { display: flex; flex-direction: column; gap: 24px; margin-bottom: 36px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--dark2);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
}
.contact-icon { font-size: 24px; flex-shrink: 0; }
.contact-item strong { display: block; font-size: 14px; font-weight: 700; margin-bottom: 6px; color: var(--red); }
.contact-item p { font-size: 15px; color: var(--light-gray); line-height: 1.5; }
.contact-item a { color: var(--red); }
.social-links { display: flex; gap: 12px; flex-wrap: wrap; }
.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition);
}
.social-btn svg { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; }
.whatsapp-btn { background: #25D366; color: var(--white); }
.whatsapp-btn:hover { background: #1eb855; transform: translateY(-2px); }
.instagram-btn { background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%); color: var(--white); }
.instagram-btn:hover { filter: brightness(1.1); transform: translateY(-2px); }
.call-btn { background: var(--red); color: var(--white); }
.call-btn:hover { background: var(--red-light); transform: translateY(-2px); }
.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 400px;
  border: 1px solid rgba(255,255,255,0.08);
}
.map-container iframe { width: 100%; height: 100%; border: none; }

/* FOOTER */
#footer { background: var(--dark2); border-top: 1px solid rgba(255,255,255,0.06); }
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 60px 24px 48px;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-brand .logo { font-size: 32px; margin-bottom: 16px; display: inline-block; }
.footer-brand p { font-size: 14px; color: var(--gray); line-height: 1.7; }
.footer-links h4, .footer-contact h4, .footer-social h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--red);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 14px; color: var(--gray); transition: color var(--transition); }
.footer-links a:hover { color: var(--white); }
.footer-contact { display: flex; flex-direction: column; gap: 8px; }
.footer-contact p, .footer-social p { font-size: 14px; color: var(--gray); }
.footer-contact a, .footer-social a { color: var(--red); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  padding: 20px 24px;
}
.footer-bottom p { font-size: 13px; color: var(--gray); }

/* CHAT FLOAT */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  background: var(--red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(228,30,38,0.4);
  z-index: 999;
  transition: all var(--transition);
}
.whatsapp-float:hover { transform: scale(1.1) translateY(-4px); box-shadow: 0 8px 32px rgba(228,30,38,0.5); }
.whatsapp-float svg { width: 30px; height: 30px; fill: white; }

/* MODAL */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
/* CHAT WINDOW */
.chat-overlay { padding: 0; align-items: flex-end; justify-content: flex-end; }
@media (min-width: 768px) {
  .chat-overlay { padding: 24px; align-items: flex-end; justify-content: flex-end; }
}
.chat-window {
  background: var(--dark2);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 420px;
  height: 100%;
  max-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  transform: translateY(40px) scale(0.96);
  transition: transform 0.3s ease;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
}
@media (min-width: 768px) {
  .chat-window { height: 640px; max-height: 80vh; border-radius: var(--radius-lg); }
}
.modal-overlay.open .chat-window { transform: translateY(0) scale(1); }

/* HEADER */
.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 100%);
  border-bottom: 1px solid rgba(0,0,0,0.2);
  flex-shrink: 0;
}
.chat-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--white);
  color: var(--red);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
}
.chat-avatar-dot {
  position: absolute;
  bottom: 0; right: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #22c55e;
  border: 2px solid var(--white);
}
.chat-header-info { flex: 1; line-height: 1.2; }
.chat-header-info strong { display: block; font-size: 16px; font-weight: 700; color: var(--white); }
.chat-header-info small { font-size: 12px; color: rgba(255,255,255,0.85); }
.chat-close {
  background: rgba(0,0,0,0.2);
  border: none;
  color: var(--white);
  width: 32px; height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  flex-shrink: 0;
}
.chat-close:hover { background: rgba(0,0,0,0.4); }

/* BODY / MESSAGES */
.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background:
    radial-gradient(ellipse at top, rgba(217,31,38,0.04), transparent 60%),
    var(--dark);
  scroll-behavior: smooth;
}
.chat-body::-webkit-scrollbar { width: 6px; }
.chat-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }

.msg {
  max-width: 82%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 14.5px;
  line-height: 1.5;
  word-wrap: break-word;
  white-space: pre-wrap;
  animation: msgIn 0.25s ease;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.msg.bot {
  align-self: flex-start;
  background: var(--dark3);
  color: var(--white);
  border-bottom-left-radius: 4px;
}
.msg.user {
  align-self: flex-end;
  background: var(--red);
  color: var(--white);
  border-bottom-right-radius: 4px;
}
.msg.invite {
  align-self: flex-start;
  background: linear-gradient(135deg, var(--dark2) 0%, var(--dark3) 100%);
  border: 1px solid var(--red);
  box-shadow: 0 0 24px var(--red-glow);
  padding: 16px 18px;
  max-width: 92%;
}
.msg.invite::before {
  content: "🎟️ Davetiyen";
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--red);
  margin-bottom: 8px;
  text-transform: uppercase;
}

/* TYPING INDICATOR */
.typing {
  align-self: flex-start;
  background: var(--dark3);
  padding: 12px 16px;
  border-radius: 16px;
  border-bottom-left-radius: 4px;
  display: inline-flex;
  gap: 4px;
  width: fit-content;
}
.typing span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gray);
  animation: typingPulse 1.2s infinite ease-in-out;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typingPulse {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

/* INPUT AREA */
.chat-input-area {
  padding: 12px 16px 16px;
  background: var(--dark2);
  border-top: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.chat-quickreplies {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chat-quickreplies button {
  padding: 10px 14px;
  background: var(--dark3);
  border: 1.5px solid rgba(217,31,38,0.3);
  border-radius: 999px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1.2;
}
.chat-quickreplies button:hover {
  background: var(--red);
  border-color: var(--red);
  transform: translateY(-1px);
}
.chat-quickreplies button.primary {
  background: var(--red);
  border-color: var(--red);
}
.chat-quickreplies button.primary:hover {
  background: var(--red-light);
}

.chat-textform {
  display: flex;
  gap: 8px;
  align-items: center;
}
.chat-textform input {
  flex: 1;
  padding: 12px 16px;
  background: var(--dark3);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 14.5px;
  outline: none;
  transition: border-color var(--transition);
}
.chat-textform input:focus { border-color: var(--red); }
.chat-textform button {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--red);
  border: none;
  color: var(--white);
  font-size: 16px;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition);
}
.chat-textform button:hover { background: var(--red-light); }
.chat-textform button:disabled { background: var(--dark3); cursor: not-allowed; }

/* SCROLL REVEAL base */
[data-delay] { transition-delay: calc(var(--delay, 0) * 1ms); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .trainers-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .map-container { height: 300px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  nav { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: block; }
  .hero-content { padding-top: 100px; }
  .hero-content h1 { font-size: 72px; }
  .cards-grid { grid-template-columns: 1fr; }
  .trainers-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; }
  .service-item { flex-wrap: wrap; }
  .cta-band-inner { flex-direction: column; text-align: center; }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero-btns { flex-direction: column; }
  .hero-stats { gap: 20px; }
  .stat-divider { display: none; }
  .trainers-grid { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
}