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

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #1a1a2e;
  color: #e0e0e0;
  padding: 20px;
  padding-top: 70px;
  max-width: 960px;
  margin: 0 auto;
}

/* ---- TOP NAV ---- */
.topnav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 54px;
  background: #0f3460;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 1000;
  border-bottom: 2px solid #e94560;
}
.topnav .brand {
  color: #ffd966;
  font-size: 1.1em;
  font-weight: 700;
  letter-spacing: 3px;
  text-decoration: none;
}
.topnav .brand span {
  color: #aaa;
  font-weight: 300;
  font-size: 0.85em;
  letter-spacing: 1px;
}
.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 3px;
  background: #ffd966;
  border-radius: 2px;
  transition: 0.3s;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }
.nav-menu {
  display: none;
  position: fixed;
  top: 54px;
  right: 0;
  background: #16213e;
  border: 1px solid #0f3460;
  border-top: none;
  border-radius: 0 0 10px 10px;
  min-width: 220px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
  z-index: 999;
}
.nav-menu.open { display: block; }
.nav-menu a {
  display: block;
  padding: 14px 20px;
  color: #e0e0e0;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 1px;
  border-bottom: 1px solid #0f3460;
  transition: background 0.2s;
}
.nav-menu a:last-child { border-bottom: none; }
.nav-menu a:hover { background: #0f3460; color: #ffd966; }
.nav-menu a.active { color: #ffd966; }

/* ---- HEADER ---- */
.header {
  text-align: center;
  padding: 30px 20px;
  margin-bottom: 30px;
  background: linear-gradient(135deg, #16213e, #0f3460);
  border-radius: 12px;
  border: 1px solid #e94560;
}
.header h1 {
  font-size: 2.8em;
  color: #ffd966;
  letter-spacing: 6px;
  margin-bottom: 6px;
}
h2 {
  font-size: 1.2em;
  color: #aaa;
  font-weight: 300;
}
body > h2 {
  font-style: italic;
}
.header h2 {
  margin-bottom: 16px;
}
.header .tags {
  text-align: center;
}
.header .tags .tag {
  display: inline-block;
  margin: 4px 6px;
}
.header .tag {
  background: #e94560;
  color: #fff;
  padding: 6px 18px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.95em;
  letter-spacing: 1px;
  text-decoration: none;
}
.header a.tag:hover {
  background: #ff6b81;
}

/* ---- WORKOUT SELECTOR ---- */
.wo-selector {
  display: inline-block;
  position: relative;
  margin: 4px 6px;
}
.wo-selector .tag {
  cursor: pointer;
  display: inline-block;
  padding-right: 28px;
}
.wo-selector .tag::after {
  content: '\25BC';
  font-size: 0.6em;
  margin-left: 6px;
  vertical-align: middle;
}
.wo-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 6px;
  background: #16213e;
  border: 1px solid #e94560;
  border-radius: 10px;
  min-width: 160px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
  z-index: 100;
}
.wo-dropdown.open { display: block; }
.wo-dropdown a {
  display: block;
  padding: 12px 16px;
  color: #e0e0e0;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9em;
  letter-spacing: 1px;
  border-bottom: 1px solid #0f3460;
  transition: background 0.2s;
}
.wo-dropdown a:last-child { border-bottom: none; }
.wo-dropdown a:hover { background: #0f3460; color: #ffd966; }
.wo-dropdown a.active { color: #ffd966; }

/* ---- SECTION TITLES ---- */
.section-title {
  text-align: center;
  font-size: 1.6em;
  font-weight: 700;
  letter-spacing: 3px;
  color: #ffd966;
  margin: 40px 0 20px;
  padding-bottom: 8px;
  border-bottom: 2px solid #ffd966;
}
.section-title.superset {
  color: #e94560;
  border-bottom-color: #e94560;
}
.section-title.cooldown {
  color: #4571e9;
  border-bottom-color: #4571e9;
}

/* ---- EXERCISE TABLE ---- */
table.exercises {
  width: 100%;
  border-collapse: separate;
  border-spacing: 12px;
}
table.exercises td {
  background: #16213e;
  border-radius: 10px;
  padding: 14px;
  text-align: center;
  vertical-align: top;
  width: 50%;
  border: 1px solid #0f3460;
  transition: border-color 0.2s;
}
table.exercises td:hover {
  border-color: #e94560;
}
table.exercises img {
  width: 100%;
  max-width: 400px;
  border-radius: 8px;
  display: block;
  margin: 0 auto 10px;
}
table.exercises .exercise-name {
  font-size: 1.05em;
  font-weight: 600;
  color: #fff;
  letter-spacing: 1px;
}
table.exercises .exercise-reps {
  font-size: 1.05em;
  font-style: italic;
  color: #aaa;
  letter-spacing: 1px;
}
table.exercises td.centered {
  width: 50%;
}

/* ---- FOOTER ---- */
.footer {
  text-align: center;
  padding: 30px;
  margin-top: 40px;
  color: #555;
  font-size: 0.85em;
}