/* ============================================
   Hashtags IA — Styles
   DESIGN DIRECTION: Bold Pop / Maximal (Hard Rule #16 — unique, not reused)
   Brief: Sticker-pop maximalism. Cream canvas, fat 3px ink borders, hard
   offset shadows, primary pop palette (magenta/cobalt/yellow). An oversized
   "#" signature mark and results rendered as a wall of tap-to-copy pop chips.
   Reach tiers are colour-blocked: amplo=yellow, médio=magenta, nichado=cobalt.
   ============================================ */

:root {
  --canvas: #fffdf7;
  --ink: #0d0d0d;
  --magenta: #ff2e7e;
  --magenta-deep: #bf225e; /* AA-contrast magenta for white text on solid fills */
  --cobalt: #2b34ff;
  --yellow: #ffd400;
  --muted: #6b6b6b;
  --surface: #ffffff;

  --border: 3px solid var(--ink);
  --border-thick: 4px solid var(--ink);
  --shadow: 6px 6px 0 var(--ink);
  --shadow-sm: 4px 4px 0 var(--ink);
  --shadow-pop: 8px 8px 0 var(--magenta);

  --radius: 14px;
  --radius-pill: 999px;

  --font-display: "Arial Black", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Helvetica Neue", Helvetica, Arial, sans-serif;

  --maxw: 880px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--canvas);
  background-image:
    radial-gradient(var(--ink) 1.4px, transparent 1.4px);
  background-size: 26px 26px;
  color: var(--ink);
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Layout ---------- */
.screen { display: none; min-height: 100vh; }
.screen.active { display: block; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.center-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

/* ---------- Brand / signature mark ---------- */
.brand-mark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(64px, 16vw, 132px);
  line-height: 0.8;
  letter-spacing: -0.04em;
  color: var(--magenta);
  -webkit-text-stroke: 3px var(--ink);
  text-stroke: 3px var(--ink);
  text-transform: uppercase;
  user-select: none;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 12px;
  background: var(--yellow);
  border: var(--border);
  padding: 6px 12px;
  box-shadow: var(--shadow-sm);
  transform: rotate(-2deg);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 0.95;
}

h1 { font-size: clamp(30px, 7vw, 52px); }
h2 { font-size: clamp(22px, 4.5vw, 32px); }
h3 { font-size: 17px; letter-spacing: 0; }

p { font-size: 16px; }
.muted { color: var(--muted); }

/* ---------- Card ---------- */
.card {
  background: var(--surface);
  border: var(--border-thick);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  width: 100%;
  max-width: 460px;
}

.card-lg { max-width: 620px; }

/* ---------- Forms ---------- */
.field { margin-bottom: 20px; text-align: left; }

label {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
select,
textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  background: var(--canvas);
  border: var(--border);
  border-radius: 10px;
  padding: 13px 14px;
  outline: none;
  transition: box-shadow 0.12s ease, transform 0.12s ease;
}

input:focus, select:focus, textarea:focus {
  box-shadow: var(--shadow-sm);
  transform: translate(-1px, -1px);
}

textarea { resize: vertical; min-height: 96px; }

.input-wrap { position: relative; }
.toggle-visibility {
  position: absolute;
  right: 10px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  cursor: pointer; font-size: 18px;
  color: var(--muted);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 15px;
  color: var(--ink);
  background: var(--yellow);
  border: var(--border);
  border-radius: 10px;
  padding: 14px 22px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  width: 100%;
}

.btn:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); }
.btn:active { transform: translate(0, 0); box-shadow: 2px 2px 0 var(--ink); }
.btn:disabled {
  opacity: 1;
  cursor: not-allowed;
  transform: none;
  background: #e4e4e4;
  color: var(--muted);
  box-shadow: var(--shadow-sm);
}

.btn-magenta { background: var(--magenta-deep); color: #fff; }
.btn-cobalt { background: var(--cobalt); color: #fff; }
.btn-ghost { background: var(--surface); }
.btn-sm { width: auto; padding: 9px 14px; font-size: 13px; }

/* ---------- Gate / key screens ---------- */
.gate-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  background: var(--cobalt);
  color: #fff;
  border: var(--border);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}

.community-link {
  color: var(--cobalt);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

.gate-msg {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 700;
  padding: 10px 12px;
  border-radius: 8px;
  display: none;
}
.gate-msg.error { display: block; background: #ffe1e1; border: 2px solid var(--magenta); color: #9b0030; }
.gate-msg.ok { display: block; background: #e2ffe9; border: 2px solid #0a8a3a; color: #0a5a26; }

/* ---------- App header ---------- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.app-title { display: flex; align-items: center; gap: 14px; }
.app-title h2 { font-size: 24px; letter-spacing: -0.01em; }
.app-title h2 + .muted { display: inline-block; margin-top: 6px; }
.app-title .hash {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 44px;
  line-height: 1;
  color: var(--magenta);
  -webkit-text-stroke: 2px var(--ink);
}
.header-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Generator form ---------- */
.gen-card {
  background: var(--surface);
  border: var(--border-thick);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 28px;
}

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-select {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  background: var(--canvas);
  border: var(--border);
  border-radius: var(--radius-pill);
  padding: 7px 14px;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.chip-select[aria-pressed="true"] {
  background: var(--cobalt);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

/* ---------- Results ---------- */
.results { display: none; }
.results.active { display: block; }

.tier {
  border: var(--border-thick);
  border-radius: var(--radius);
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.tier-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: var(--border);
  flex-wrap: wrap;
}
.tier-amplo .tier-head { background: var(--yellow); }
.tier-medio .tier-head { background: var(--magenta-deep); color: #fff; }
.tier-nichado .tier-head { background: var(--cobalt); color: #fff; }
.tier-medio .tier-head, .tier-nichado .tier-head { text-shadow: 0 1px 0 rgba(0,0,0,0.2); }
.tier-title { font-family: var(--font-display); font-weight: 900; text-transform: uppercase; letter-spacing: -0.01em; font-size: 20px; }
.tier-sub { font-size: 12px; font-weight: 800; letter-spacing: 0.01em; }

.tag-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 18px;
  background: var(--surface);
}
.tag {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15px;
  background: var(--canvas);
  border: var(--border);
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease, background 0.1s ease;
  user-select: none;
  max-width: 100%;
  overflow-wrap: break-word;
}
.tag:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-sm); }
.tag.copied { background: #e2ffe9; border-color: #0a8a3a; }

.block {
  background: var(--surface);
  border: var(--border-thick);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 24px;
}
.block h3 { margin-bottom: 12px; }
.caption-box {
  background: var(--canvas);
  border: var(--border);
  border-radius: 10px;
  padding: 14px;
  font-size: 15px;
  white-space: pre-wrap;
}
.tips-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.tips-list li {
  padding-left: 30px;
  position: relative;
  font-size: 15px;
}
.tips-list li::before {
  content: "#";
  position: absolute;
  left: 0; top: -2px;
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--magenta);
  font-size: 20px;
}

.result-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }

/* ---------- States ---------- */
.state { text-align: center; padding: 40px 20px; }
.spinner {
  width: 46px; height: 46px;
  border: 5px solid var(--canvas);
  border-top-color: var(--magenta);
  border-radius: 50%;
  margin: 0 auto 16px;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-mark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 80px;
  line-height: 1;
  color: var(--yellow);
  -webkit-text-stroke: 3px var(--ink);
}

/* ---------- Modal ---------- */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(13,13,13,0.55);
  z-index: 100;
  align-items: center; justify-content: center;
  padding: 20px;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--surface);
  border: var(--border-thick);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  width: 100%; max-width: 440px;
  max-height: 90vh; overflow-y: auto;
}
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.modal-close { background: none; border: none; font-size: 26px; cursor: pointer; line-height: 1; }

/* ---------- Footer ---------- */
.app-footer {
  text-align: center;
  margin-top: 48px;
  padding-top: 22px;
  border-top: var(--border);
  font-size: 13px;
}
.app-footer a { color: var(--cobalt); font-weight: 700; }

/* ---------- Static pages (about / privacy / deletion) ---------- */
.static-page { max-width: 760px; margin: 0 auto; padding: 40px 22px 80px; }
.static-page h1 { margin-bottom: 18px; }
.static-page h2 { margin: 28px 0 12px; }
.static-page p, .static-page li { font-size: 16px; margin-bottom: 10px; }
.static-page ul, .static-page ol { padding-left: 22px; margin-bottom: 14px; }
.static-page a { color: var(--cobalt); font-weight: 700; }
.back-link { display: inline-block; margin-bottom: 24px; font-weight: 700; color: var(--cobalt); }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .wrap { padding: 28px 18px 72px; }
  .gen-card { padding: 22px; }
  .tier-title { font-size: 18px; }
}
@media (max-width: 680px) {
  .row { grid-template-columns: 1fr; }
  .app-header { flex-direction: column; align-items: flex-start; }
  .header-actions { width: 100%; }
  .tier-head { padding: 12px 16px; }
  .tag-wall { padding: 16px; gap: 8px; }
}
@media (max-width: 380px) {
  .card { padding: 24px; }
  .brand-mark { font-size: 72px; }
  .gen-card, .block { padding: 18px; }
  .app-title .hash { font-size: 36px; }
  .app-title h2 { font-size: 20px; }
  .btn:not(.btn-sm) { font-size: 14px; padding: 13px 18px; }
}

/* ---------- BYOK key inputs ---------- */
.key-input-group { margin-bottom: 20px; text-align: left; }
.key-input-group label {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.key-input-wrapper { position: relative; display: flex; gap: 8px; }
.key-input-wrapper input { flex: 1; }
.key-toggle {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 11px;
  background: var(--canvas);
  border: var(--border);
  border-radius: 10px;
  padding: 0 14px;
  cursor: pointer;
  white-space: nowrap;
}
.key-status {
  font-size: 12px;
  font-weight: 700;
  margin-top: 6px;
  color: var(--muted);
}
.key-status.saved { color: #0a8a3a; }

/* ---------- A11y ---------- */
:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}