/* ═══════════════════════════════════════════════════════════════════════════
   Sprig Magazine — Public Submission Form
   Full Sprig Issue 03 visual language
   ═══════════════════════════════════════════════════════════════════════════ */

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

:root {
  --bg:          #1f1d1a;
  --paper:       #efe6cf;
  --ink:         #1f1408;
  --cream:       #ede4ce;
  --cream-soft:  #d6cdb6;
  --cream-dim:   #8a8270;
  --olive:       #7c9050;
  --olive-soft:  #99ae6f;
  --olive-deep:  #5a6b3a;
  --mustard:     #d4b248;
  --maroon:      #6b3722;
  --tape-l:      rgba(124,144,80,0.5);
  --tape-r:      rgba(217,164,65,0.6);

  --font:         'Geist', system-ui, sans-serif;
  --font-display: 'Geist', system-ui, sans-serif;
  --font-mono:    'Geist Mono', 'Courier New', monospace;
  --font-hand:    'Caveat', cursive;
  --font-italic:  'Instrument Serif', Georgia, serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--cream);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Grain */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23g)'/%3E%3C/svg%3E");
}

/* ── Header ────────────────────────────────────────────────────────────────── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 2rem .9rem;
  border-bottom: 1px solid rgba(237,228,206,0.14);
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.brand-logo { height: 38px; display: block; }
.header-meta {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cream-dim);
}

/* ── Hero ──────────────────────────────────────────────────────────────────── */
.hero {
  max-width: 680px;
  margin: 5rem auto 3.5rem;
  padding: 0 2rem;
  text-align: center;
}
.hero-label {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--olive-soft);
  margin-bottom: 1.25rem;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: .96;
  color: var(--cream);
  margin-bottom: 1.5rem;
}
.hero-title em {
  font-family: var(--font-italic);
  font-style: italic;
  font-weight: 400;
  color: var(--mustard);
}
.hero-body {
  font-family: var(--font);
  font-size: 1rem;
  color: var(--cream-soft);
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto;
}
.hero-motto {
  font-family: var(--font-italic);
  font-style: italic;
  font-size: .92rem;
  color: var(--cream-dim);
  margin-top: 1rem;
}

/* ── Main / form wrap ──────────────────────────────────────────────────────── */
main, #success-wrap {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 0 1.5rem 5rem;
}

/* ── Paper slip ────────────────────────────────────────────────────────────── */
.slip {
  background: var(--paper);
  color: var(--ink);
  border-radius: 2px;
  width: 100%;
  max-width: 640px;
  padding: 0 3rem 3rem;
  box-shadow:
    0 6px 30px rgba(0,0,0,.45),
    0 2px 6px rgba(0,0,0,.25);
  position: relative;
}

/* Tape strips */
.slip-tape {
  height: 32px;
  position: relative;
  margin: 0 -3rem 2.5rem;
}
.slip-tape::before,
.slip-tape::after {
  content: '';
  position: absolute;
  top: 6px;
  height: 22px;
  width: 52px;
  border-radius: 1px;
}
.slip-tape::before { left: 28px;  background: var(--tape-l); transform: rotate(-5deg); mix-blend-mode: multiply; }
.slip-tape::after  { right: 28px; background: var(--tape-r); transform: rotate(4deg);  mix-blend-mode: multiply; }

/* ── Section stamps ────────────────────────────────────────────────────────── */
.section-stamp {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 400;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--olive-deep);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.section-stamp::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(31,20,8,.12);
}

/* ── Fields ────────────────────────────────────────────────────────────────── */
.field {
  margin-bottom: 1.4rem;
}
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cream-dim);
  margin-bottom: .4rem;
}
.req      { color: var(--olive); }
.optional { color: var(--cream-dim); text-transform: none; letter-spacing: 0; font-family: var(--font-italic); font-style: italic; }

.field input[type="text"],
.field input[type="email"],
.field input[type="url"],
.field select,
.field textarea {
  width: 100%;
  font-family: var(--font);
  font-size: 1rem;
  background: rgba(31,20,8,.04);
  border: 1px solid rgba(31,20,8,.18);
  border-radius: 2px;
  padding: .55rem .85rem;
  color: var(--ink);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
  appearance: none;
}
.field input::placeholder,
.field textarea::placeholder { color: rgba(31,20,8,.3); font-style: italic; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--olive);
  box-shadow: 0 0 0 3px rgba(124,144,80,.12);
}
.field textarea { resize: vertical; line-height: 1.65; }

/* Error state */
.field input.error,
.field select.error,
.field textarea.error { border-color: var(--maroon); }

/* Divider between sections */
.divider {
  height: 1px;
  background: rgba(31,20,8,.1);
  margin: 2rem 0;
}

/* Checkbox */
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  cursor: pointer;
}
.checkbox-label input[type="checkbox"] {
  flex-shrink: 0;
  margin-top: .25rem;
  width: 1rem;
  height: 1rem;
  accent-color: var(--olive);
  cursor: pointer;
}
.checkbox-label span {
  font-family: var(--font);
  font-size: .9rem;
  color: rgba(31,20,8,.7);
  line-height: 1.5;
}

/* ── Field hints ───────────────────────────────────────────────────────────── */
.field-hint {
  font-family: var(--font);
  font-size: .82rem;
  color: rgba(31,20,8,.5);
  font-style: italic;
  line-height: 1.5;
  margin-bottom: .5rem;
}

/* ── Upload zone ───────────────────────────────────────────────────────────── */
.upload-zone {
  position: relative;
  border: 1.5px dashed rgba(31,20,8,.22);
  border-radius: 3px;
  background: rgba(31,20,8,.03);
  transition: border-color .2s, background .2s;
  cursor: pointer;
  overflow: hidden;
}
.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--olive);
  background: rgba(124,144,80,.05);
}
.upload-zone.has-file {
  border-style: solid;
  border-color: var(--olive);
  background: rgba(124,144,80,.06);
  cursor: default;
}
.upload-zone.error {
  border-color: var(--maroon);
  background: rgba(107,55,34,.04);
}

/* The actual <input type="file"> — invisible, covers the whole zone */
.upload-zone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 1;
}
.upload-zone.has-file input[type="file"] { pointer-events: none; }

/* Idle prompt */
.upload-prompt {
  padding: 2.5rem 1.5rem;
  text-align: center;
  pointer-events: none;
}
.upload-arrow {
  display: block;
  font-size: 1.6rem;
  color: var(--cream-dim);
  margin-bottom: .6rem;
  line-height: 1;
}
.upload-cta {
  font-family: var(--font);
  font-size: .95rem;
  color: rgba(31,20,8,.65);
  margin-bottom: .4rem;
}
.upload-browse {
  color: var(--olive-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.upload-hint {
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .07em;
  color: var(--cream-dim);
  margin-bottom: .3rem;
}
.upload-limit {
  font-family: var(--font-mono);
  font-size: .63rem;
  letter-spacing: .06em;
  color: rgba(31,20,8,.3);
}

/* Multi-file list (replaces single-file preview) */
.upload-file-list {
  padding: .75rem 1.25rem .25rem;
}
.upload-file-entry {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: .55rem 0;
  border-bottom: 1px solid rgba(31,20,8,.08);
}
.upload-file-entry:last-of-type { border-bottom: none; }
.upload-add-more {
  padding: .5rem 0 .65rem;
  text-align: center;
}
.upload-add-btn {
  background: none;
  border: 1px dashed rgba(31,20,8,.22);
  border-radius: 2px;
  padding: .3rem .9rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--olive-deep);
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.upload-add-btn:hover { border-color: var(--olive); color: var(--olive); }

/* Single-file preview (kept for backward compat, unused in new form) */
.upload-preview {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  pointer-events: none;
}
.upload-file-icon { font-size: 1.75rem; flex-shrink: 0; }
.upload-file-meta { flex: 1; min-width: 0; }
.upload-file-name {
  display: block;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .02em;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.upload-file-size {
  display: block;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .05em;
  color: var(--cream-dim);
  margin-top: .15rem;
}
.upload-clear {
  flex-shrink: 0;
  background: none;
  border: 1px solid rgba(31,20,8,.18);
  border-radius: 2px;
  padding: .2rem .45rem;
  font-size: .75rem;
  color: var(--cream-dim);
  cursor: pointer;
  pointer-events: all;
  letter-spacing: 0;
  text-transform: none;
  font-family: inherit;
  transition: border-color .15s, color .15s;
  z-index: 2;
  position: relative;
}
.upload-clear:hover { border-color: var(--maroon); color: var(--maroon); }

/* ── Submit button ─────────────────────────────────────────────────────────── */
.btn-submit {
  width: 100%;
  margin-top: 1.75rem;
  padding: .9rem 1.5rem;
  background: var(--olive);
  color: var(--paper);
  border: none;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .2s, transform .1s;
}
.btn-submit:hover  { background: var(--olive-soft); }
.btn-submit:active { transform: scale(.99); }
.btn-submit:disabled { background: var(--cream-dim); cursor: not-allowed; }

/* ── Form error banner ─────────────────────────────────────────────────────── */
.form-error {
  margin-top: 1rem;
  padding: .75rem 1rem;
  background: rgba(107,55,34,.08);
  border: 1px solid rgba(107,55,34,.2);
  border-left: 3px solid var(--maroon);
  border-radius: 2px;
  font-family: var(--font);
  font-size: .9rem;
  color: var(--maroon);
}

/* ── Success slip ──────────────────────────────────────────────────────────── */
.slip-success {
  max-width: 520px;
  text-align: center;
  padding: 0 3rem 3.5rem;
  margin-top: 4rem;
  align-self: flex-start;
}
.success-stamp {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--olive-deep);
  margin-bottom: 1.25rem;
}
.success-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: .75rem;
}
.success-number {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .12em;
  color: var(--cream-dim);
  margin-bottom: 1.5rem;
}
.success-body {
  font-family: var(--font);
  font-size: 1rem;
  color: rgba(31,20,8,.7);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.success-sig {
  font-family: var(--font-hand);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--maroon);
}

/* ── Honeypot (invisible to humans) ───────────────────────────────────────── */
.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* ── Footer ────────────────────────────────────────────────────────────────── */
footer {
  padding: 1.25rem 2rem;
  border-top: 1px solid rgba(237,228,206,.08);
  display: flex;
  justify-content: center;
}
.footer-mark {
  font-family: var(--font-hand);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--cream-dim);
}

/* ── Settings panel ────────────────────────────────────────────────────────── */

.settings-wrap { position: relative; }

.btn-settings {
  font-family: var(--font-mono);
  font-size: .85rem;
  background: none;
  border: 1px solid rgba(237,228,206,.18);
  border-radius: 2px;
  color: var(--cream-dim);
  padding: .25rem .5rem;
  cursor: pointer;
  line-height: 1;
  transition: color .15s, border-color .15s;
}
.btn-settings:hover { color: var(--cream-soft); border-color: rgba(237,228,206,.32); }

.settings-panel {
  position: absolute;
  top: calc(100% + .5rem);
  right: 0;
  min-width: 210px;
  background: #2a2724;
  border: 1px solid rgba(237,228,206,.14);
  border-radius: 4px;
  padding: .9rem 1rem;
  box-shadow: 0 8px 28px rgba(0,0,0,.4);
  z-index: 600;
}

.settings-title {
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cream-dim);
  margin-bottom: .8rem;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.settings-label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .05em;
  color: var(--cream-soft);
}

.theme-toggle {
  display: flex;
  border: 1px solid rgba(237,228,206,.18);
  border-radius: 3px;
  overflow: hidden;
}

.theme-opt {
  font-family: var(--font-mono);
  font-size: .64rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: none;
  border: none;
  padding: .28rem .65rem;
  cursor: pointer;
  color: var(--cream-dim);
  transition: background .15s, color .15s;
  line-height: 1;
}
.theme-opt.active { background: var(--olive); color: #fff; }
.theme-opt:not(.active):hover { background: rgba(237,228,206,.08); color: var(--cream-soft); }

/* ── Light mode ────────────────────────────────────────────────────────────── */

html.light-mode {
  --bg:          #f0e7cf;
  --cream:       #1f1408;
  --cream-soft:  #3d2b16;
  --cream-dim:   #7a6845;
}

html.light-mode header {
  border-bottom-color: rgba(31,20,8,.12);
}

html.light-mode .hero-label  { color: var(--olive-deep); }
html.light-mode .hero-title em { color: var(--olive-deep); }

html.light-mode .slip {
  box-shadow: 0 6px 30px rgba(31,20,8,.1), 0 2px 6px rgba(31,20,8,.06);
}

html.light-mode footer {
  border-top-color: rgba(31,20,8,.1);
}

html.light-mode .btn-settings {
  border-color: rgba(31,20,8,.18);
  color: var(--cream-dim);
}
html.light-mode .btn-settings:hover { border-color: rgba(31,20,8,.32); }

html.light-mode .settings-panel {
  background: #f7f1e1;
  border-color: rgba(31,20,8,.14);
  box-shadow: 0 8px 28px rgba(31,20,8,.14);
}

html.light-mode .settings-title { color: var(--cream-dim); }
html.light-mode .settings-label { color: var(--cream-soft); }

html.light-mode .theme-toggle { border-color: rgba(31,20,8,.18); }
html.light-mode .theme-opt:not(.active):hover { background: rgba(31,20,8,.08); }

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  header { padding: .9rem 1rem; }
  .hero { margin: 3rem auto 2.5rem; padding: 0 1.25rem; }
  main, #success-wrap { padding: 0 1rem 3rem; }
  .slip { padding: 0 1.5rem 2rem; }
  .slip-tape { margin: 0 -1.5rem 2rem; }
  .slip-success { padding: 0 1.5rem 2.5rem; }
}