/* ============================================================
   PIERERRA TOOLS — shared/portal.css
   Author  : Piererra
   Project : Piererra Tools
   Theme   : Editorial / Dashboard Hybrid (v2)

   This file owns the shell shared by every page: reset, color/
   type tokens, the top nav bar (used on the hub page AND every
   tool page), the hub's tool-card grid, and the shared footer.
   Each tool's own CSS file (tools/*/*.css) keeps its unique
   components (dropzones, pickers, grids…) but inherits its
   bg/panel/card/text/border tokens from here, so every page
   reads as one product instead of four unrelated ones.
============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@600;700;800&family=Inter:wght@400;500;600;700&display=swap');

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

:root {
  /* ── Dashboard chrome (dark, default) ── */
  --bg:      #131418;
  --panel:   #1A1B20;
  --card:    #202127;
  --border:  rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text:       #ECEDF2;
  --text-muted: #90939F;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.32);

  /* Neutral chrome accent (nav links, focus rings on non-tool UI) */
  --accent: #818CF8;
  --accent-dim: rgba(129, 140, 248, 0.14);

  /* Per-tool signature accents — used on the hub cards */
  --accent-nfsu2:  #7DFF6E;
  --accent-nfsmw:  #FF9142;
  --accent-subway: #FFC736;

  --font-display: 'Sora', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --ease: 0.16s ease;
}

/* ── LIGHT THEME OVERRIDES ──────────────────────────────── */
:root[data-theme="light"] {
  --bg:      #F1F2F6;
  --panel:   #FFFFFF;
  --card:    #FFFFFF;
  --border:  #E3E4EC;
  --border-strong: #D2D4E0;
  --text:       #16171D;
  --text-muted: #6A6D7C;
  --shadow: 0 10px 28px rgba(20, 21, 30, 0.07);
  --accent: #5457E8;
  --accent-dim: rgba(84, 87, 232, 0.10);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  transition: background-color var(--ease), color var(--ease);
}

a { color: inherit; }

/* ============================================================
   TOP NAV — used on the hub page (brand) and every tool page
   (back link + current tool name), always with lang + theme
   controls on the right.
============================================================ */
.pt-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.pt-brand { display: flex; flex-direction: column; line-height: 1.15; flex-shrink: 0; }
.pt-brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}
.pt-brand__tag {
  font-size: 0.66rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* Back-to-hub link + breadcrumb, used on the 3 tool pages */
.pt-nav__back {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--accent);
  transition: opacity var(--ease);
}
.pt-nav__back:hover { opacity: 0.75; }
.pt-nav__sep { color: var(--text-muted); font-size: 0.8rem; }
.pt-nav__current { color: var(--text-muted); font-size: 0.82rem; font-weight: 600; }

/* ── CONTROLS (lang + theme toggle) ── */
.pt-controls { display: flex; align-items: center; gap: 0.5rem; margin-left: auto; flex-shrink: 0; }

.pt-lang { display: flex; align-items: center; gap: 0.35rem; }
.pt-lang__icon { font-size: 0.8rem; color: var(--text-muted); user-select: none; }
.pt-lang__select {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.68rem;
  padding: 0.3rem 1.5rem 0.3rem 0.6rem;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%23818CF8' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  transition: border-color var(--ease), color var(--ease);
  max-width: 160px;
}
.pt-lang__select:hover, .pt-lang__select:focus { border-color: var(--accent); color: var(--text); }
.pt-lang__select option, .pt-lang__select optgroup { background: var(--panel); color: var(--text); }

.pt-theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.9rem; height: 1.9rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color var(--ease), color var(--ease), transform var(--ease);
}
.pt-theme-toggle:hover, .pt-theme-toggle:focus { border-color: var(--accent); color: var(--accent); outline: none; }
.pt-theme-toggle:active { transform: scale(0.92); }
.pt-theme-toggle__icon { font-size: 0.95rem; line-height: 1; user-select: none; }

/* ============================================================
   HUB PAGE — intro + tool card grid (index.html only)
============================================================ */
.pt-hub { max-width: 1000px; margin: 0 auto; padding: 3rem 1.5rem 4rem; }

.pt-hub__eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.pt-hub__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  letter-spacing: 0.01em;
  line-height: 1.15;
  max-width: 30ch;
}
.pt-hub__subtitle {
  margin-top: 0.9rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 56ch;
  line-height: 1.55;
}

.pt-hub__grid {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.pt-hub__card {
  display: block;
  text-decoration: none;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: border-color var(--ease), transform var(--ease);
}
.pt-hub__card:hover { transform: translateY(-3px); }
.pt-hub__card[data-tool="nfsu2"]:hover  { border-color: var(--accent-nfsu2); }
.pt-hub__card[data-tool="nfsmw"]:hover  { border-color: var(--accent-nfsmw); }
.pt-hub__card[data-tool="subway"]:hover { border-color: var(--accent-subway); }

.pt-hub__card__eyebrow {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.pt-hub__card[data-tool="nfsu2"]  .pt-hub__card__eyebrow { color: var(--accent-nfsu2); }
.pt-hub__card[data-tool="nfsmw"]  .pt-hub__card__eyebrow { color: var(--accent-nfsmw); }
.pt-hub__card[data-tool="subway"] .pt-hub__card__eyebrow { color: var(--accent-subway); }

.pt-hub__card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
}
.pt-hub__card__desc {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.pt-hub__card__cta {
  margin-top: 1.1rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
}

/* ============================================================
   SHARED FOOTER
============================================================ */
.pt-footer {
  padding: 1.4rem 1.5rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--panel);
}
.pt-footer__text { font-size: 0.72rem; color: var(--text-muted); letter-spacing: 0.05em; }
.pt-footer__links {
  display: flex; align-items: center; justify-content: center;
  gap: 0.65rem; flex-wrap: wrap; margin-top: 0.5rem;
}
.pt-footer__link { font-size: 0.7rem; color: var(--text-muted); text-decoration: none; transition: color var(--ease); }
.pt-footer__link:hover { color: var(--accent); }
.pt-footer__sep { font-size: 0.6rem; color: var(--border-strong); }

@media (max-width: 760px) {
  .pt-nav { padding: 0.65rem 0.9rem; gap: 0.5rem; }
  .pt-brand__tag { display: none; }
  .pt-nav__current { display: none; }
  .pt-hub { padding: 2rem 1.1rem 3rem; }
}