:root {
  --color-bg: #0a0a0a;
  --color-surface: #151515;
  --color-text: #ffffff;
  --color-text-muted: #9ca3af;
  --color-primary: #ff5a1f;
  --color-primary-dark: #e04a12;
  --color-on-primary: #0a0a0a;
  --color-border: #2a2a2a;
  --radius: 14px;
  --container-width: 1100px;
}

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

/* Classes like .btn set display, which would otherwise override the hidden attribute */
[hidden] {
  display: none !important;
}

body {
  font-family: Georgia, "Times New Roman", Times, serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
}

h1, h2, h3 {
  line-height: 1.15;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 100px;
  font-weight: 600;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.05rem;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover {
  border-color: var(--color-text-muted);
}

.btn-secondary:disabled {
  opacity: 0.6;
  cursor: default;
}

/* Nav */
.topbar {
  position: sticky;
  top: 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
}

.nav-links {
  display: none;
  gap: 24px;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.nav-links a:hover {
  color: var(--color-text);
}

/* Hidden on phones: no room in the header, and the builder is already on the first screen */
.nav-cta {
  display: none;
  font-size: 0.9rem;
  padding: 10px 18px;
}

@media (min-width: 800px) {
  .nav-links {
    display: flex;
  }

  .nav-cta {
    display: inline-block;
  }
}

/* Auth area (nav) */
.auth-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Email is hidden on phones to make room for My workouts / Log out */
.account-email {
  display: none;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (min-width: 800px) {
  .account-email {
    display: inline;
  }
}

.nav-account-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.85rem;
  padding: 8px 14px;
  font-family: inherit;
  white-space: nowrap;
}

.nav-account-btn:hover {
  border-color: var(--color-text-muted);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 400px;
  max-height: 85vh;
  overflow-y: auto;
}

.modal-wide {
  max-width: 560px;
}

.modal h3 {
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Auth form */
#auth-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  text-align: left;
}

#auth-form input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  font-family: inherit;
}

#auth-form input:focus {
  outline: none;
  border-color: var(--color-primary);
}

#auth-form .btn {
  width: 100%;
  text-align: center;
  margin-top: 4px;
}

.auth-error {
  color: var(--color-primary);
  font-size: 0.9rem;
}

.auth-toggle {
  margin-top: 20px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.link-btn {
  background: none;
  border: none;
  color: var(--color-primary);
  font-weight: 600;
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  padding: 0;
  margin-left: 4px;
}

/* Saved workouts modal */
.saved-workouts-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: left;
  color: var(--color-text-muted);
}

.saved-workouts-empty {
  color: var(--color-text-muted);
}

.saved-workout-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px;
}

.saved-workout-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 10px;
  margin-bottom: 10px;
  color: var(--color-text);
}

.saved-workout-meta,
.saved-workout-date {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.saved-workout-date {
  margin-left: auto;
}

.saved-workout-exercises {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.9rem;
}

/* Hero */
.hero {
  position: relative;
  padding: 72px 0 56px;
  text-align: center;
  overflow: hidden;
}

.icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.hero-inner {
  position: relative;
  z-index: 2;
}

/* Scattered equipment cards (desktop only) */
.hero-cards {
  display: none;
}

@media (min-width: 1000px) {
  .hero {
    padding: 60px 0 80px;
    min-height: 720px;
  }

  .hero-cards {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 1;
  }

  .hero-card {
    position: absolute;
    width: 120px;
    height: 120px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
  }

  .card-icon {
    width: 40px;
    height: 40px;
  }

  .card-badge {
    background: #fff;
    color: var(--color-on-primary);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 5px 10px;
    border-radius: 100px;
    white-space: nowrap;
    position: absolute;
    bottom: -12px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
  }

  .hero-card-1 { top: 6%;  left: 5%; }
  .hero-card-2 { top: 4%;  right: 5%; }
  .hero-card-3 { top: 38%; left: 2%; }
  .hero-card-4 { top: 36%; right: 2%; }
  .hero-card-5 { bottom: 6%; left: 10%; }
  .hero-card-6 { bottom: 4%; right: 10%; }
}

.hero h1 {
  font-size: 2rem;
  max-width: 700px;
  margin: 0 auto 16px;
}

.subhead {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 480px;
  margin: 0 auto 28px;
}

@media (min-width: 800px) {
  .hero h1 {
    font-size: 3rem;
  }
}

/* Section shared */
section {
  padding: 56px 0;
}

section h2 {
  font-size: 1.75rem;
  text-align: center;
  margin-bottom: 40px;
}

/* How it works */
.steps {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}

.step {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 700;
  margin-bottom: 16px;
}

.step .icon {
  margin-bottom: 12px;
}

.step h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.step p {
  color: var(--color-text-muted);
}

@media (min-width: 800px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Features */
.features {
  background: var(--color-surface);
}

.feature-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.feature-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.feature-card .icon {
  margin-bottom: 12px;
}

.feature-card h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.feature-card p {
  color: var(--color-text-muted);
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Who it's for */
.audience-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.audience-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.audience-card .icon {
  margin: 0 auto 12px;
}

.audience-card h3 {
  font-size: 1rem;
  font-weight: 600;
}

@media (min-width: 640px) {
  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .audience-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* FAQ */
.faq-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
}

.faq-item p {
  color: var(--color-text-muted);
  margin-top: 12px;
}

/* Final CTA */
.final-cta {
  text-align: center;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius);
  max-width: var(--container-width);
  margin: 0 auto 56px;
  padding: 64px 20px;
}

.final-cta h2 {
  color: var(--color-on-primary);
  margin-bottom: 8px;
}

.final-cta p {
  color: rgba(10, 10, 10, 0.7);
  margin-bottom: 24px;
}

.final-cta .btn-primary {
  background: var(--color-on-primary);
  color: #fff;
}

/* Workout widget (inline, hero) */
.workout-widget {
  position: relative;
  margin: 40px auto 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 40px 32px;
  width: 100%;
  max-width: 540px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  text-align: center;
}

.workout-widget h3 {
  font-size: 1.9rem;
  margin-bottom: 8px;
}

.workout-subhead {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

/* Form fields */
#workout-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
  text-align: left;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.05rem;
  font-weight: 600;
}

.field-icon {
  width: 20px;
  height: 20px;
}

.select-wrap {
  position: relative;
}

.select-wrap::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 16px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

#workout-form select {
  width: 100%;
  padding: 15px 44px 15px 16px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1.1rem;
  font-family: inherit;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

#workout-form select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.equipment-describe-wrap {
  margin-top: 10px;
}

.equipment-describe {
  width: 100%;
  padding: 15px 16px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1.1rem;
  font-family: inherit;
  resize: vertical;
}

.equipment-describe:focus {
  outline: none;
  border-color: var(--color-primary);
}

.field-hint {
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.duration-group {
  display: flex;
  gap: 8px;
}

.duration-pill {
  flex: 1;
  padding: 12px 8px;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
}

.duration-pill:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.duration-pill.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-on-primary);
}

#workout-form .btn {
  margin-top: 6px;
  width: 100%;
  text-align: center;
}

/* Results */
.workout-result-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 28px;
}

.result-tag {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 7px 16px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.fallback-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 10px 14px;
  margin: -12px 0 20px;
}

.workout-list {
  counter-reset: exercise;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
}

.workout-list li {
  counter-increment: exercise;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 14px 16px;
}

.workout-list li::before {
  content: counter(exercise);
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 700;
  font-size: 0.95rem;
}

.exercise-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Phones: sets/reps stack under the name, so long names get the full card width
   instead of wrapping one word per line beside a nowrap "3 sets × 10 reps/side" */
.exercise-top-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

@media (min-width: 640px) {
  .exercise-top-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
  }
}

.exercise-name {
  flex: 1;
  font-weight: 600;
  font-size: 1.05rem;
}

.exercise-sets {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  white-space: nowrap;
}

.workout-list .rest-divider {
  counter-increment: none;
  background: none;
  border: none;
  border-radius: 0;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: -4px 0;
  color: var(--color-text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.workout-list .rest-divider::before {
  content: none;
}

.exercise-video-link {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}

.exercise-video-link:hover {
  text-decoration: underline;
}

.save-status {
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
}

.save-status.is-error {
  color: #f87171;
}

.workout-result-actions {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.js-save-workout,
.js-restart-workout {
  width: 100%;
  text-align: center;
}

/* Footer */
.footer {
  padding: 24px 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}