/* ============================================
   PromptEz — Final Polished Stylesheet
   For clean single-page homepage structure
   ============================================ */

/* ============================================
   1. Design Tokens
   ============================================ */

:root {
  --bg: #f7f8f4;
  --surface: #ffffff;
  --surface-soft: #f0fdf7;
  --surface-muted: #f8fafc;

  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-soft: #94a3b8;

  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --accent: #10a37f;
  --accent-dark: #0f766e;
  --accent-deep: #134e4a;
  --accent-soft: #ecfdf5;

  --warm: #f59e0b;
  --warm-soft: #fff7ed;

  --error: #dc2626;
  --success: #16a34a;

  --font-heading: "Sora", sans-serif;
  --font-body: "Inter", sans-serif;

  --container: 1200px;

  --space-2xs: 0.375rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 6rem;

  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --radius-xl: 34px;

  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 4px 14px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 12px 34px rgba(15, 23, 42, 0.09);
  --shadow-lg: 0 24px 70px rgba(15, 23, 42, 0.13);

  --transition-fast: 160ms ease;
  --transition: 240ms ease;
}

/* ============================================
   2. Reset
   ============================================ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  max-width: 100%;
  overflow-x: hidden;
  font-family: var(--font-body);
  color: var(--text-primary);
  background:
    radial-gradient(circle at top left, rgba(16, 163, 127, 0.12), transparent 34%),
    radial-gradient(circle at top right, rgba(245, 158, 11, 0.08), transparent 28%),
    var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

::selection {
  background: rgba(16, 163, 127, 0.18);
  color: var(--text-primary);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(16, 163, 127, 0.32);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* Native hidden safety */
[hidden] {
  display: none !important;
}

/* ============================================
   3. Typography
   ============================================ */

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: 750;
  color: var(--text-primary);
  letter-spacing: -0.035em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: var(--space-sm);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-dark);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--warm));
}

.section-head {
  margin-bottom: var(--space-2xl);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  max-width: 620px;
  font-size: 1.06rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ============================================
   4. Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 46px;
  padding: 0.72rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.93rem;
  font-weight: 750;
  line-height: 1;
  white-space: nowrap;
  transition:
    background-color var(--transition),
    color var(--transition),
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.btn--primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--text-primary), #1e293b);
  border-color: rgba(15, 23, 42, 0.08);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.14);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent-deep));
  transform: translateY(-2px);
  box-shadow: 0 18px 38px rgba(15, 118, 110, 0.22);
}

.btn--secondary {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.74);
  border-color: var(--border);
}

.btn--secondary:hover {
  color: var(--accent-dark);
  background: var(--surface);
  border-color: rgba(15, 118, 110, 0.35);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn--lg {
  min-height: 54px;
  padding: 0.92rem 1.75rem;
  font-size: 1rem;
}

/* ============================================
   5. Navbar
   ============================================ */

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: rgba(247, 248, 244, 0.84);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.72);
  transition: box-shadow var(--transition), background-color var(--transition);
}

.navbar.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-sm);
}

.navbar__inner {
  max-width: var(--container);
  min-height: 76px;
  margin: 0 auto;
  padding: 0.75rem var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.logo__mark {
  position: relative;
  display: inline-block;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.9), transparent 24%),
    linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow: 0 8px 18px rgba(15, 118, 110, 0.25);
}

.logo__mark::after {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.9);
}

.logo__text {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: -0.035em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.65rem;
  flex: 1;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0;
  font-size: 0.93rem;
  font-weight: 650;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  width: 100%;
}

.navbar__cta {
  flex-shrink: 0;
}

/* Dropdown */

.nav-dropdown {
  position: relative;
}

.nav-dropdown__summary {
  cursor: pointer;
  list-style: none;
}

.nav-dropdown__summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown__summary::before {
  content: none;
}

.nav-dropdown__summary::after {
  content: "";
  position: static;
  width: 7px;
  height: 7px;
  background: none;
  border-right: 1.6px solid currentColor;
  border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
}

.nav-dropdown[open] .nav-dropdown__summary::after {
  transform: rotate(-135deg) translateY(1px);
}

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 0.9rem);
  left: 50%;
  z-index: 1200;
  min-width: 310px;
  padding: 0.7rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: var(--shadow-lg);
  transform: translateX(-50%);
}

.nav-dropdown__menu::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 0;
  width: 100%;
  height: 10px;
}

.nav-dropdown__link {
  display: block;
  padding: 0.82rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.93rem;
  font-weight: 650;
  color: var(--text-secondary);
  transition: background-color var(--transition), color var(--transition);
}

.nav-dropdown__link:hover {
  color: var(--accent-dark);
  background: var(--accent-soft);
}

/* Mobile menu */

.menu-toggle {
  display: none;
  position: relative;
  z-index: 1300;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  flex-shrink: 0;
}

.menu-toggle__bar {
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 999px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.is-active .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-active .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-active .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  display: none;
}

/* ============================================
   6. Hero
   ============================================ */

.hero {
  position: relative;
  padding: 5.6rem var(--space-xl) 6.5rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 7%;
  right: -160px;
  width: 560px;
  height: 560px;
  border-radius: 999px;
  background: radial-gradient(circle at 35% 35%, rgba(16, 163, 127, 0.16), transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  left: -180px;
  bottom: -220px;
  width: 460px;
  height: 460px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.11), transparent 60%);
  pointer-events: none;
}

.hero__bg {
  display: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: center;
}

.hero__content {
  max-width: 690px;
}

.hero__title {
  max-width: 13ch;
  font-size: clamp(3rem, 6.4vw, 5.25rem);
  line-height: 0.98;
  margin-bottom: var(--space-lg);
}

.hero__subtitle {
  max-width: 58ch;
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.hero__microcopy {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  max-width: 58ch;
  padding: 0.7rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(226, 232, 240, 0.78);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: var(--shadow-xs);
}

.hero__microcopy-icon {
  color: var(--success);
  flex-shrink: 0;
}

/* Hero preview */

.hero__preview {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 460px;
}

.preview-card {
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid rgba(226, 232, 240, 0.95);
}

.preview-card--back {
  position: absolute;
  z-index: 0;
  top: 18px;
  right: 0;
  width: 310px;
  height: 240px;
  background: linear-gradient(135deg, rgba(236, 253, 245, 0.95), rgba(255, 247, 237, 0.8));
  border-color: rgba(16, 163, 127, 0.1);
  transform: rotate(5deg);
}

.preview-card--front {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 410px;
  padding: 1.65rem;
  box-shadow: var(--shadow-lg);
}

.preview-card__top {
  margin-bottom: var(--space-md);
}

.preview-field {
  display: grid;
  gap: 0.25rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
}

.preview-field:last-of-type {
  border-bottom: none;
}

.preview-field__label,
.preview-output__label {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.preview-field__value {
  color: var(--text-primary);
  font-size: 0.96rem;
  font-weight: 650;
}

.preview-card__divider {
  height: 1px;
  margin: var(--space-md) 0;
  background: var(--border);
}

.preview-output {
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-soft), #ffffff);
  border: 1px solid rgba(16, 163, 127, 0.12);
}

.preview-output__label {
  display: block;
  color: var(--accent-dark);
  margin-bottom: 0.4rem;
}

.preview-output__text {
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.preview-card__footer {
  display: flex;
}

.preview-card__copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.72rem 1rem;
  border-radius: 999px;
  background: var(--text-primary);
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 750;
  transition: var(--transition);
}

.preview-card__copy-btn:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

/* ============================================
   7. Badges
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.73rem;
  font-weight: 800;
  white-space: nowrap;
}

/* ============================================
   8. Tools
   ============================================ */

.tools {
  padding: var(--space-3xl) var(--space-xl);
}

.tools__inner {
  max-width: var(--container);
  margin: 0 auto;
}

.tools .section-head {
  max-width: 720px;
}

.tools__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
}

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 250px;
  padding: 1.55rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(226, 232, 240, 0.92);
  box-shadow: var(--shadow-xs);
  text-align: left;
  overflow: hidden;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition),
    background-color var(--transition);
}

.tool-card::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 132px;
  height: 132px;
  border-radius: 999px;
  background: rgba(16, 163, 127, 0.08);
  transition: transform var(--transition);
}

.tool-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(16, 163, 127, 0.26);
  background: #ffffff;
}

.tool-card:hover::after {
  transform: scale(1.3);
}

.tool-card.is-active {
  border-color: rgba(16, 163, 127, 0.5);
  box-shadow: 0 0 0 4px rgba(16, 163, 127, 0.09), var(--shadow-sm);
}

.tool-card__label,
.tool-card__title,
.tool-card__desc,
.tool-card__select {
  position: relative;
  z-index: 1;
}

.tool-card__label {
  margin-bottom: var(--space-md);
}

.tool-card__title {
  font-size: 1.12rem;
  line-height: 1.35;
  margin-bottom: var(--space-xs);
}

.tool-card__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.tool-card__select {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 0.68rem 1.05rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.88rem;
  font-weight: 800;
  transition: var(--transition);
}

.tool-card.is-active .tool-card__select,
.tool-card:hover .tool-card__select {
  background: var(--accent);
  color: #ffffff;
}

/* ============================================
   9. Builder
   ============================================ */

.builder {
  padding: var(--space-2xl) var(--space-xl) var(--space-4xl);
}

.builder__inner {
  max-width: 920px;
  margin: 0 auto;
}

.builder__card {
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.9));
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: var(--shadow-lg);
}

.builder__header {
  margin-bottom: var(--space-xl);
}

.builder__title {
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}

.builder__desc {
  max-width: 68ch;
  color: var(--text-secondary);
  font-size: 1rem;
}

.builder__fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.field--full {
  grid-column: 1 / -1;
}

.field__label {
  font-size: 0.88rem;
  font-weight: 750;
  color: var(--text-primary);
}

.field__optional {
  color: var(--text-soft);
  font-weight: 500;
}

.field__hint {
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  border: 1px solid rgba(16, 163, 127, 0.13);
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.5;
}

.field__input,
.field__select,
.field__textarea {
  width: 100%;
  padding: 0.82rem 0.95rem;
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.field__input::placeholder,
.field__textarea::placeholder {
  color: var(--text-soft);
}

.field__input:focus,
.field__select:focus,
.field__textarea:focus {
  outline: none;
  background: #ffffff;
  border-color: rgba(16, 163, 127, 0.6);
  box-shadow: 0 0 0 4px rgba(16, 163, 127, 0.11);
}

.field__textarea {
  min-height: 106px;
  resize: vertical;
  line-height: 1.55;
}

.field__select {
  appearance: none;
  padding-right: 2.4rem;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2364748B' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.95rem center;
}

.field.has-error .field__input,
.field.has-error .field__select,
.field.has-error .field__textarea {
  border-color: var(--error);
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.08);
}

.field__error {
  display: none;
  color: var(--error);
  font-size: 0.82rem;
  font-weight: 650;
}

.field.has-error .field__error {
  display: block;
}

.builder__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.builder__output {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
}

.builder__output-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.builder__output-title {
  font-size: 1.15rem;
}

.builder__output-text {
  width: 100%;
  max-height: 380px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: #0f172a;
  border: 1px solid rgba(15, 23, 42, 0.12);
  color: #e5e7eb;
  font-family: var(--font-body);
  font-size: 0.93rem;
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.builder__output-text.is-placeholder {
  color: #94a3b8;
}

.builder__output-note {
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.66rem 1.05rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.88rem;
  font-weight: 800;
  transition: var(--transition);
}

.copy-btn:hover:not(:disabled) {
  background: var(--accent);
  color: #ffffff;
  transform: translateY(-1px);
}

.copy-btn:disabled {
  opacity: 0.52;
  cursor: not-allowed;
}

.copy-btn.is-copied {
  background: var(--success);
  color: #ffffff;
}

.prompt-checklist {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--warm-soft);
  border: 1px solid rgba(245, 158, 11, 0.23);
}

.prompt-checklist__title {
  font-size: 0.96rem;
  margin-bottom: var(--space-sm);
}

.prompt-checklist__list {
  display: grid;
  gap: 0.55rem;
}

.prompt-checklist__list li {
  position: relative;
  padding-left: 1.35rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.prompt-checklist__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-dark);
  font-weight: 900;
}

/* ============================================
   10. Hidden Reveal Sections
   How It Works / Guide / FAQ
   ============================================ */

.hidden-home-section {
  padding: var(--space-3xl) var(--space-xl) var(--space-4xl);
}

.hidden-home-section.is-visible-section {
  display: block !important;
  animation: hiddenSectionReveal 260ms ease both;
}

@keyframes hiddenSectionReveal {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* How it works */

.how__inner,
.guide__inner {
  max-width: var(--container);
  margin: 0 auto;
}

.how .section-head,
.guide .section-head,
.faq .section-head {
  text-align: center;
}

.how__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
}

.how-card,
.guide-card,
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}

.how-card,
.guide-card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
}

.how-card {
  transition: var(--transition);
}

.how-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.how-card__step {
  display: inline-flex;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.how-card__title,
.guide-card__title {
  font-size: 1.2rem;
  margin-bottom: var(--space-xs);
}

.how-card__text,
.guide-card__text {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Guide */

.guide .section-title {
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.guide__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-lg);
}

.guide-card__text {
  line-height: 1.75;
}

/* FAQ */

.faq__inner {
  max-width: 800px;
  margin: 0 auto;
}

.faq__list {
  display: grid;
  gap: var(--space-sm);
}

.faq-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(16, 163, 127, 0.24);
}

.faq-item__question {
  width: 100%;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 1.15rem 1.35rem;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: background-color var(--transition);
}

.faq-item__question:hover {
  background: var(--surface-muted);
}

.faq-item__icon {
  flex-shrink: 0;
  color: var(--accent-dark);
  transition: transform var(--transition);
}

.faq-item.is-open .faq-item__icon {
  transform: rotate(45deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}

.faq-item__answer-inner {
  padding: 0 1.35rem 1.2rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============================================
   11. Footer
   ============================================ */

.footer {
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
  background: #ffffff;
  border-top: 1px solid var(--border);
}

.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.footer__brand {
  max-width: 320px;
}

.logo--footer {
  margin-bottom: var(--space-sm);
}

.footer__tagline {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-2xs);
}

.footer__domain {
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 800;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  max-width: 720px;
}

.footer__link {
  color: var(--text-secondary);
  font-size: 0.94rem;
  font-weight: 650;
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--text-primary);
}

.footer__copyright {
  width: 100%;
  padding-top: var(--space-lg);
  margin-top: var(--space-sm);
  border-top: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 0.88rem;
}

/* ============================================
   12. Toast
   ============================================ */

.toast {
  position: fixed;
  left: 50%;
  bottom: var(--space-xl);
  z-index: 2000;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  max-width: min(92vw, 540px);
  padding: 0.9rem 1.2rem;
  border-radius: 999px;
  background: var(--text-primary);
  color: #ffffff;
  box-shadow: var(--shadow-lg);
  font-size: 0.92rem;
  font-weight: 650;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(20px);
  transition: opacity 220ms ease, transform 220ms ease, visibility 220ms ease;
}

.toast svg {
  color: var(--accent);
  flex-shrink: 0;
}

.toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ============================================
   13. Responsive Design
   ============================================ */

@media (max-width: 1100px) {
  .tools__grid,
  .why__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero__inner {
    grid-template-columns: 1fr;
  }

  .hero__title {
    max-width: 16ch;
  }

  .hero__preview {
    justify-content: flex-start;
  }
}

@media (max-width: 900px) {
  html {
    scroll-padding-top: 78px;
  }

  .navbar__inner {
    min-height: 72px;
  }

  .nav-links,
  .navbar__cta,
  .nav-dropdown {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
    width: 100%;
    min-height: 100vh;
    padding: 6.5rem 1.4rem 2rem;
    background:
      radial-gradient(circle at top right, rgba(16, 163, 127, 0.13), transparent 34%),
      var(--bg);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(100%);
    transition:
      transform 0.28s ease,
      opacity 0.28s ease,
      visibility 0.28s ease;
  }

  .mobile-menu.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
  }

  .mobile-menu__link,
  .mobile-tools__summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.28rem 0;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 1.32rem;
    font-weight: 800;
    line-height: 1.35;
  }

  .mobile-menu__link:hover,
  .mobile-tools__summary:hover {
    color: var(--text-primary);
  }

  .mobile-tools {
    width: 100%;
  }

  .mobile-tools__summary {
    cursor: pointer;
    list-style: none;
  }

  .mobile-tools__summary::-webkit-details-marker {
    display: none;
  }

  .mobile-tools__summary::after {
    content: "+";
    color: var(--accent-dark);
    font-size: 1.4rem;
    font-weight: 900;
  }

  .mobile-tools[open] .mobile-tools__summary::after {
    content: "−";
  }

  .mobile-menu__group {
    display: grid;
    gap: 0.85rem;
    margin-top: 1rem;
    margin-left: 0.25rem;
    padding-left: 1.2rem;
    border-left: 1px solid var(--border);
  }

  .mobile-menu__sublink {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.45;
  }

  .mobile-menu__sublink:hover {
    color: var(--accent-dark);
  }

  .mobile-menu__cta {
    width: 100%;
    margin-top: var(--space-md);
  }

  .hero,
  .tools,
  .builder,
  .hidden-home-section,
  .footer {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .hero {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }

  .hero__preview {
    min-height: auto;
  }

  .preview-card--back {
    display: none;
  }

  .preview-card--front {
    max-width: 100%;
  }

  .builder__fields,
  .guide__grid,
  .how__grid {
    grid-template-columns: 1fr;
  }

  .builder__card {
    border-radius: var(--radius-lg);
  }

  .footer__inner {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .navbar__inner {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .hero {
    padding-left: 0;
    padding-right: 0;
  }

  .hero__inner {
    width: 100%;
    max-width: 100%;
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
    overflow-x: hidden;
  }

  .hero__title {
    max-width: 100%;
    font-size: clamp(2.45rem, 12vw, 3.4rem);
  }

  .hero__subtitle {
    max-width: 100%;
    font-size: 1rem;
  }

  .hero__actions {
    width: 100%;
    flex-direction: column;
  }

  .hero__actions .btn,
  .builder__actions .btn {
    width: 100%;
    white-space: normal;
    text-align: center;
  }

  .hero__microcopy {
    align-items: flex-start;
    border-radius: var(--radius-md);
  }

  .tools__grid {
    grid-template-columns: 1fr;
  }

  .tool-card {
    min-height: auto;
    padding: 1.35rem;
  }

  .tool-card__select {
    width: 100%;
  }

  .builder__output-head {
    align-items: flex-start;
  }

  .copy-btn {
    width: 100%;
  }

  .builder__output-text {
    padding: var(--space-md);
    font-size: 0.88rem;
  }

  .prompt-checklist {
    padding: var(--space-md);
  }

  .footer__links {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .toast {
    left: var(--space-md);
    right: var(--space-md);
    bottom: var(--space-md);
    width: auto;
    max-width: none;
    border-radius: var(--radius-md);
    transform: translateY(20px);
  }

  .toast.is-visible {
    transform: translateY(0);
  }
}

@media (max-width: 420px) {
  .hero,
  .tools,
  .builder,
  .hidden-home-section,
  .footer {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .hero {
    padding-left: 0;
    padding-right: 0;
  }

  .hero__inner {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .section-title {
    font-size: clamp(1.85rem, 9vw, 2.45rem);
  }

  .preview-card--front,
  .builder__card {
    padding: var(--space-lg);
  }

  .mobile-menu {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

/* ============================================
   14. Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   Prompt Pack Page — Full Layout + Mobile Fix
   ============================================ */

.prompt-pack-page {
  overflow-x: hidden;
}

.prompt-pack-page .page {
  padding: var(--space-3xl) var(--space-xl) var(--space-4xl);
}

.prompt-pack-page .page__inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
}

.prompt-pack-page .page-hero {
  max-width: 920px;
  margin: 0 auto var(--space-3xl);
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top left, rgba(16, 163, 127, 0.12), transparent 34%),
    radial-gradient(circle at top right, rgba(245, 158, 11, 0.08), transparent 30%),
    rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow-sm);
}

.prompt-pack-page .page-hero__title {
  max-width: 780px;
  margin: 0 auto var(--space-md);
  font-size: clamp(2.25rem, 5vw, 4rem);
  line-height: 1.05;
}

.prompt-pack-page .page-hero__text {
  max-width: 760px;
  margin: 0 auto var(--space-xl);
  color: var(--text-secondary);
  font-size: 1.06rem;
  line-height: 1.75;
}

.prompt-pack-page .pack-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.prompt-pack-page .pack-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.68rem 1rem;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid rgba(16, 163, 127, 0.16);
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 800;
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
}

.prompt-pack-page .pack-nav a:hover {
  background: var(--accent);
  color: #ffffff;
  transform: translateY(-2px);
}

.prompt-pack-page .content-card {
  max-width: 920px;
  margin: 0 auto var(--space-3xl);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: #ffffff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}

.prompt-pack-page .content-card h2 {
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  margin-bottom: var(--space-sm);
}

.prompt-pack-page .content-card p {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.prompt-pack-page .checklist {
  display: grid;
  gap: 0.7rem;
}

.prompt-pack-page .checklist li {
  position: relative;
  padding-left: 1.45rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.prompt-pack-page .checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-dark);
  font-weight: 900;
}

.prompt-pack-page .section-anchor {
  scroll-margin-top: 110px;
}

.prompt-pack-page .pack-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-lg);
}

.prompt-pack-page .prompt-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: var(--shadow-sm);
}

.prompt-pack-page .prompt-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.prompt-pack-page .prompt-card__title {
  margin-top: var(--space-sm);
  margin-bottom: var(--space-xs);
  font-size: 1.22rem;
  line-height: 1.3;
}

.prompt-pack-page .prompt-card__meta {
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.65;
}

.prompt-pack-page .copy-pack-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  background: var(--text-primary);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 800;
  white-space: nowrap;
  cursor: pointer;
  position: relative;
  z-index: 3;
  transition: var(--transition);
}

.prompt-pack-page .copy-pack-btn:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

.prompt-pack-page .prompt-card__details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.prompt-pack-page .detail-box {
  display: grid;
  gap: 0.35rem;
  min-width: 0;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--surface-muted);
  border: 1px solid var(--border);
}

.prompt-pack-page .detail-box strong {
  font-size: 0.84rem;
  color: var(--text-primary);
}

.prompt-pack-page .detail-box span {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.55;
}

.prompt-pack-page .prompt-box {
  min-width: 0;
  max-width: 100%;
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-md);
  background: #0f172a;
  border: 1px solid rgba(15, 23, 42, 0.18);
  overflow: hidden;
}

.prompt-pack-page .prompt-box pre {
  width: 100%;
  max-width: 100%;
  max-height: 420px;
  overflow: auto;
  padding: var(--space-lg);
  color: #e5e7eb;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.87rem;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.prompt-pack-page .prompt-card__footer {
  display: grid;
  gap: var(--space-md);
  margin-top: auto;
}

.prompt-pack-page .prompt-tip {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

@media (max-width: 900px) {
  .prompt-pack-page .pack-grid {
    grid-template-columns: 1fr;
  }

  .prompt-pack-page .prompt-card__details {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .prompt-pack-page .page {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .prompt-pack-page .page-hero {
    padding: var(--space-xl) var(--space-lg);
    border-radius: var(--radius-lg);
  }

  .prompt-pack-page .hero__actions {
    flex-direction: column;
  }

  .prompt-pack-page .hero__actions .btn {
    width: 100%;
  }

  .prompt-pack-page .pack-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .prompt-pack-page .pack-nav a {
    width: 100%;
  }

  .prompt-pack-page .prompt-card {
    padding: var(--space-lg);
  }

  .prompt-pack-page .prompt-card__top {
    flex-direction: column;
  }

  .prompt-pack-page .copy-pack-btn {
    width: 100%;
  }

  .prompt-pack-page .prompt-box pre {
    padding: var(--space-md);
    font-size: 0.82rem;
  }
}

@media (max-width: 420px) {
  .prompt-pack-page .page {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .prompt-pack-page .pack-nav {
    grid-template-columns: 1fr;
  }

  .prompt-pack-page .content-card,
  .prompt-pack-page .prompt-card {
    padding: var(--space-lg);
  }
}

/* ============================================
   Tool Page SEO Content
   ============================================ */

.tool-seo {
  padding: var(--space-3xl) var(--space-xl);
  background: #ffffff;
  border-top: 1px solid var(--border);
}

.tool-seo__inner {
  max-width: var(--container);
  margin: 0 auto;
}

.tool-seo__intro {
  max-width: 760px;
  margin-bottom: var(--space-2xl);
}

.tool-seo__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.tool-seo-card,
.tool-seo-faq {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  background: var(--surface-muted);
  border: 1px solid var(--border);
}

.tool-seo-card h3,
.tool-seo-faq h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
}

.tool-seo-card p,
.tool-seo-faq p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
}

.tool-seo-card p + p {
  margin-top: var(--space-sm);
}

.tool-seo-card ul {
  display: grid;
  gap: 0.65rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.tool-seo-card li {
  position: relative;
  padding-left: 1.3rem;
}

.tool-seo-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-dark);
  font-weight: 900;
}

.tool-seo__faq {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.tool-seo__faq > h2,
.tool-seo__related > h2 {
  font-size: clamp(1.55rem, 3vw, 2.1rem);
  margin-bottom: var(--space-md);
}

.tool-seo__related-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tool-seo__related-links a {
  display: inline-flex;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 800;
  transition: var(--transition);
}

.tool-seo__related-links a:hover {
  background: var(--accent);
  color: #ffffff;
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  .tool-seo {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .tool-seo__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .tool-seo {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .tool-seo-card,
  .tool-seo-faq {
    padding: var(--space-lg);
  }
}