/* ============================================================
   The Daniel Pledger — site styles
   Base tokens come from colors_and_type.css. This file adds:
   - reset & layout primitives
   - reveal-on-scroll baseline
   - beam drift animation
   - tweak-driven CSS variables
   ============================================================ */

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  /* These get rewritten by Tweaks on :root */
  --tdp-type-scale: 1.0;
  --tdp-density: 1.0;     /* 1 = regular, <1 = compact, >1 = generous */
  --tdp-beam: 0.55;       /* beam alpha multiplier */
  --tdp-motion: 1.0;      /* 0 = still, 1 = restrained, 1.6 = lively */
  --tdp-img-opacity: 1.0;
  --tdp-edit-density: 1.0; /* affects body column widths */
}

/* A11y: lift slate-ocean to pass small-text WCAG AA (~4.5:1)
   on the Imperial Indigo body. Same hue family, brighter. */
[data-brand="tdp"] {
  --c-slate-ocean: #6f8aa9;
}
* { box-sizing: border-box; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }
::selection { background: var(--c-glow-500); color: var(--c-imperial-indigo); }

/* ---------- Layout ---------- */
.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 56px);
}
.container-narrow {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 56px);
}
.container-wide {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 56px);
}

/* Section vertical rhythm responds to tweak density */
.section {
  padding-top: calc(112px * var(--tdp-density));
  padding-bottom: calc(112px * var(--tdp-density));
  position: relative;
}
.section-tight {
  padding-top: calc(64px * var(--tdp-density));
  padding-bottom: calc(64px * var(--tdp-density));
  position: relative;
}
.section-tall {
  padding-top: calc(160px * var(--tdp-density));
  padding-bottom: calc(140px * var(--tdp-density));
  position: relative;
}

/* ---------- Type scale tweak ---------- */
.t-display { font-size: calc(var(--t-display) * var(--tdp-type-scale)); }
.t-h1      { font-size: calc(var(--t-h1) * var(--tdp-type-scale)); }
.t-h2      { font-size: calc(var(--t-h2) * var(--tdp-type-scale)); }
.t-h3      { font-size: calc(var(--t-h3) * var(--tdp-type-scale)); }
.t-body    { font-size: calc(var(--t-body) * var(--tdp-type-scale)); }
.t-body-lg { font-size: calc(var(--t-body-lg) * var(--tdp-type-scale)); }

/* ---------- Editorial body column ---------- */
.col-narrow  { max-width: calc(48ch * var(--tdp-edit-density)); }
.col-regular { max-width: calc(56ch * var(--tdp-edit-density)); }
.col-wide    { max-width: calc(64ch * var(--tdp-edit-density)); }

/* ---------- Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity calc(800ms * var(--tdp-motion)) cubic-bezier(.16,1,.3,1),
    transform calc(800ms * var(--tdp-motion)) cubic-bezier(.16,1,.3,1);
}
.reveal.on { opacity: 1; transform: translateY(0); }

/* ---------- Page transitions ---------- */
.page-fade {
  opacity: 0;
  animation: pageFade calc(700ms * var(--tdp-motion)) cubic-bezier(.16,1,.3,1) forwards;
}
@keyframes pageFade {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Beam drift ---------- */
@keyframes beam-drift {
  0%   { transform: rotate(-9deg) translate(0, 0);    opacity: 0.92; }
  50%  { transform: rotate(-7.5deg) translate(18px, -4px); opacity: 1.0; }
  100% { transform: rotate(-9deg) translate(0, 0);    opacity: 0.92; }
}
@keyframes beam-drift-soft {
  0%   { transform: rotate(-12deg) translate(0,0); opacity: 0.85; }
  50%  { transform: rotate(-10deg) translate(14px, 4px); opacity: 1; }
  100% { transform: rotate(-12deg) translate(0,0); opacity: 0.85; }
}

/* ---------- Cursor & focus ---------- */
/* Hide focus ring for mouse users; keep it sharp for keyboard users. */
*:focus { outline: none; }
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 1px;
}
.input:focus-visible {
  outline: none;
  border-bottom-color: var(--c-glow-500);
  box-shadow: 0 1px 0 var(--c-glow-500);
}
button { background: transparent; border: 0; padding: 0; cursor: pointer; }
a, button { -webkit-tap-highlight-color: transparent; }

/* ---------- Skip link ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 200;
  background: var(--c-glow-500);
  color: var(--c-imperial-indigo);
  padding: 14px 22px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  text-decoration: none;
  border-radius: 2px;
  transition: top 200ms var(--ease-out);
}
.skip-link:focus,
.skip-link:focus-visible {
  top: 16px;
  outline: 2px solid var(--c-imperial-indigo);
  outline-offset: 2px;
}

/* ---------- Lucide icons ---------- */
[data-lucide] {
  stroke-width: 1.5;
  vertical-align: -2px;
  flex-shrink: 0;
}

/* ---------- Inputs ---------- */
.input {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  padding: 16px 0 14px;
  color: var(--fg-strong);
  font-size: 17px;
  font-family: var(--font-sans);
  font-weight: var(--w-light);
  letter-spacing: -0.005em;
  transition: border-color 240ms var(--ease-out);
}
.input::placeholder { color: var(--c-slate-ocean); font-weight: var(--w-light); }
.input:focus { border-bottom-color: var(--c-glow-500); }
textarea.input { resize: vertical; min-height: 96px; line-height: 1.55; padding-top: 12px; }
select.input {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  padding-right: 28px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%23a2caf5' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 4px center;
}
select.input option { background: var(--c-nightfall); color: var(--c-steel-100); }
select.input:invalid { color: var(--c-slate-ocean); }
.input-prefix {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: end;
  gap: 8px;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 240ms var(--ease-out);
}
.input-prefix:focus-within { border-bottom-color: var(--c-glow-500); }
.input-prefix > .input {
  border-bottom: 0;
  padding-left: 0;
}
.input-prefix > .prefix {
  font-size: 15px;
  color: var(--c-slate-ocean);
  font-weight: var(--w-light);
  padding-bottom: 14px;
}

/* ---------- Hairline thread ---------- */
.thread {
  height: 1px;
  background: var(--line);
}
.thread-gold {
  height: 1px;
  width: 56px;
  background: var(--accent);
}

/* ---------- Atmospheric vignette ---------- */
.vignette::before {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  background: radial-gradient(80% 60% at 50% 40%, transparent 40%, rgba(0,0,0,0.35) 100%);
  z-index: 1;
}

/* ---------- Mobile ---------- */
@media (max-width: 880px) {
  .hide-mobile { display: none !important; }
  [data-asym] { grid-template-columns: 1fr !important; gap: 48px !important; }
  .show-mobile { display: inline-flex !important; }
  .section, .section-tall { padding-top: calc(72px * var(--tdp-density)); padding-bottom: calc(72px * var(--tdp-density)); }
  .speaking-room { grid-template-columns: 1fr !important; gap: 6px !important; }
  .speaking-room .speaking-room-loc { text-align: left !important; }
  .footer-grid { grid-template-columns: 1fr !important; gap: 48px !important; }
  .footer-bottom { flex-direction: column !important; align-items: flex-start !important; gap: 12px !important; }
  .form-2col { grid-template-columns: 1fr !important; gap: 28px !important; }
}
.show-mobile { display: none; }

/* ---------- Mobile drawer ---------- */
.drawer-scrim {
  position: fixed; inset: 0;
  background: rgba(6, 11, 28, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 80;
  opacity: 0;
  pointer-events: none;
  transition: opacity 400ms var(--ease-out);
}
.drawer-scrim.open {
  opacity: 1;
  pointer-events: auto;
}
.drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(86vw, 420px);
  background: var(--c-nightfall);
  border-left: 1px solid var(--line);
  z-index: 90;
  display: flex;
  flex-direction: column;
  padding: 32px 28px 32px;
  transform: translateX(100%);
  transition: transform 480ms var(--ease-out);
  overflow: auto;
}
.drawer.open { transform: translateX(0); }
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.drawer-nav {
  display: flex;
  flex-direction: column;
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
  gap: 0;
}
.drawer-nav a {
  display: block;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  color: var(--c-steel-100);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.012em;
  text-decoration: none;
  transition: color 220ms var(--ease-out);
}
.drawer-nav a:hover { color: var(--c-glow-200); }
.drawer-cta { margin-top: 36px; }
.drawer-meta {
  margin-top: auto;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-slate-ocean);
  font-weight: 500;
}
.hamburger {
  width: 40px; height: 40px;
  display: none;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  cursor: pointer;
  color: var(--c-steel-100);
}
@media (max-width: 880px) {
  .hamburger { display: inline-flex; }
}