:root {
  --purple: #5b2ee0;
  --purple-dark: #3d1a9e;
  --coral: #ff4d6d;
  --lime: #2fd583;
  --ink: #16112b;
  --paper: #ffffff;
  --mist: #f4f2fb;
  --line: #e6e1f7;
  --radius: 18px;
  font-family: 'DM Sans', system-ui, sans-serif;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; }
html, body { margin: 0; padding: 0; background: var(--mist); color: var(--ink); overflow-x: hidden; -webkit-overflow-scrolling: touch; }
h1, h2, h3 { font-family: 'Manrope', 'DM Sans', sans-serif; margin: 0; }
button, input, textarea { font-family: inherit; }
.hidden { display: none !important; }

/* ---------- Brand ---------- */
.brand { display: flex; align-items: center; gap: 10px; font-family: 'Manrope', sans-serif; font-weight: 800; font-size: 1.1rem; letter-spacing: -0.01em; }
.brand-mark { display: inline-flex; gap: 3px; }
.brand-mark i { width: 8px; height: 20px; border-radius: 4px; background: var(--purple); }
.brand-mark i:nth-child(2) { background: var(--coral); height: 26px; margin-top: -3px; }
.brand-mark i:nth-child(3) { background: var(--lime); }

/* ---------- Toast ---------- */
.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); background: var(--ink); color: #fff; padding: 12px 20px; border-radius: 999px; font-size: 0.9rem; opacity: 0; pointer-events: none; transition: 0.25s ease; z-index: 200; max-width: 90vw; text-align: center; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ============ JOIN SCREEN ============ */
.join-screen {
  min-height: 100dvh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding: 24px;
  background: linear-gradient(160deg, var(--purple) 0%, var(--purple-dark) 100%);
}
.join-orb { position: absolute; border-radius: 50%; filter: blur(2px); opacity: 0.35; }
.orb-one { width: 340px; height: 340px; background: var(--coral); top: -120px; right: -100px; }
.orb-two { width: 260px; height: 260px; background: var(--lime); bottom: -100px; left: -80px; }

.join-panel {
  position: relative; z-index: 1; width: 100%; max-width: 420px;
  background: var(--paper); border-radius: 24px; padding: 36px 30px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.35);
}
.join-panel .brand { color: var(--purple); margin-bottom: 18px; }
.join-panel h1 { font-size: 2rem; line-height: 1.1; margin-bottom: 6px; }
.join-panel h1 em { color: var(--coral); font-style: normal; }
.join-panel > p { color: #6b6480; margin: 0 0 24px; font-size: 0.95rem; }

.join-form { display: flex; flex-direction: column; gap: 14px; }
.code-input-wrap { display: flex; align-items: center; background: var(--mist); border: 2px solid var(--line); border-radius: 14px; padding: 4px 4px 4px 18px; transition: border-color 0.15s; }
.code-input-wrap:focus-within { border-color: var(--purple); }
.code-input-wrap span { font-weight: 800; color: var(--purple); font-size: 1.3rem; }
.code-input-wrap input { flex: 1; border: none; background: none; outline: none; padding: 16px 12px; font-size: 1.4rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink); }
#codeHint { color: #8b84a3; font-size: 0.85rem; }
#codeHint button { border: none; background: none; color: var(--purple); font-weight: 700; text-decoration: underline; cursor: pointer; padding: 0; font-size: inherit; }

.name-field { display: flex; flex-direction: column; gap: 6px; font-size: 0.85rem; color: #6b6480; font-weight: 600; }
.name-field input { border: 2px solid var(--line); border-radius: 12px; padding: 12px 14px; font-size: 1rem; outline: none; color: var(--ink); font-weight: 500; }
.name-field input:focus { border-color: var(--purple); }

.email-optin { display: flex; flex-direction: column; gap: 10px; }
.email-toggle { align-self: flex-start; border: none; background: none; color: var(--purple); font-weight: 700; font-size: 0.85rem; cursor: pointer; padding: 4px 0; }
.email-fields { display: flex; flex-direction: column; gap: 10px; background: var(--mist); border-radius: 14px; padding: 14px; }
.email-fields label:not(.checkbox-field) { display: flex; flex-direction: column; gap: 6px; font-size: 0.82rem; color: #6b6480; font-weight: 600; }
.email-fields input:not([type="checkbox"]) { border: 2px solid var(--line); border-radius: 10px; padding: 11px 13px; font-size: 0.95rem; outline: none; color: var(--ink); font-weight: 500; background: var(--paper); }
.email-fields input:not([type="checkbox"]):focus { border-color: var(--purple); }
.checkbox-field { display: flex; align-items: flex-start; gap: 8px; font-size: 0.85rem; color: #4d4763; font-weight: 500; cursor: pointer; }
.checkbox-field input { margin-top: 3px; width: 17px; height: 17px; accent-color: var(--purple); flex-shrink: 0; }
.email-hint-organizer { margin: 0; font-size: 0.76rem; color: var(--purple); font-weight: 600; }

#adminCodeReveal p { margin: 0 0 8px; font-size: 0.82rem; color: #4d4763; font-weight: 600; }
#adminCodeValue { display: block; font-family: monospace; font-size: 1.15rem; letter-spacing: 0.04em; margin: 0 0 12px; color: var(--purple); word-break: break-all; }
#adminCodeReveal { display: flex; flex-direction: column; align-items: flex-start; }

.join-submit { border: none; background: var(--coral); color: #fff; font-weight: 800; font-size: 1.05rem; padding: 16px; border-radius: 14px; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px; transition: transform 0.1s, box-shadow 0.15s; box-shadow: 0 10px 24px rgba(255,77,109,0.35); }
.join-submit:hover { transform: translateY(-1px); }
.join-submit:active { transform: translateY(0); }

.join-error { color: var(--coral); font-size: 0.85rem; font-weight: 600; margin: 0; }

.join-trust { display: flex; flex-wrap: wrap; gap: 10px 16px; margin-top: 20px; font-size: 0.78rem; color: #8b84a3; font-weight: 600; }
.organizer-hint { margin: 16px 0 0; font-size: 0.78rem; color: #a79fc2; text-align: center; }
.privacy-link { margin: 8px 0 0; text-align: center; font-size: 0.74rem; }
.privacy-link a { color: #a79fc2; }

/* ============ CONFERENCE SCREEN ============ */
.conf-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; background: var(--paper); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.conf-header .brand { color: var(--purple); }
.conf-header-right { display: flex; align-items: center; gap: 12px; }
.organizer-badge { background: var(--ink); color: #fff; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.05em; padding: 5px 10px; border-radius: 999px; }
#changeEvent { border: none; background: var(--mist); color: var(--ink); font-weight: 700; font-size: 0.85rem; padding: 9px 14px; border-radius: 999px; cursor: pointer; }

.conf-main { max-width: 960px; margin: 0 auto; padding: 24px 20px 60px; }

.conf-hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-bottom: 28px; }
.conf-hero .eyebrow { color: var(--purple); font-weight: 800; font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 4px; }
.conf-hero h1 { font-size: 1.9rem; margin-bottom: 4px; }
.conf-hero p { margin: 0; color: #6b6480; }
.conf-hero-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.edit-conf-btn { border: 2px solid var(--line); background: var(--paper); color: var(--ink); font-weight: 700; font-size: 0.85rem; padding: 10px 16px; border-radius: 12px; cursor: pointer; }

.quiz-cta { display: flex; align-items: center; gap: 12px; border: none; background: linear-gradient(135deg, var(--coral), #ff8360); color: #fff; padding: 12px 18px; border-radius: 16px; cursor: pointer; box-shadow: 0 12px 24px rgba(255,77,109,0.3); }
.quiz-cta span:first-child { font-size: 1.4rem; }
.quiz-cta small { display: block; font-size: 0.65rem; opacity: 0.85; letter-spacing: 0.06em; }
.quiz-cta strong { display: block; font-size: 1rem; }
.quiz-cta b { font-size: 1.2rem; margin-left: 4px; }

.email-followup { margin-bottom: 24px; }
.email-followup .email-fields { margin-top: 10px; }

.section-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.section-head h2 { font-size: 1.2rem; }
.section-head-actions { display: flex; align-items: center; gap: 12px; }
#standCount { color: #8b84a3; font-size: 0.85rem; font-weight: 600; }
.add-stand-btn { border: none; background: var(--purple); color: #fff; font-weight: 700; font-size: 0.85rem; padding: 10px 16px; border-radius: 999px; cursor: pointer; }

.stand-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.stand-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; gap: 10px; position: relative; }
.stand-card-top { display: flex; align-items: center; gap: 12px; }
.stand-card-heading { flex: 1; min-width: 0; }
.stand-logo { width: 44px; height: 44px; border-radius: 12px; background: var(--mist); display: flex; align-items: center; justify-content: center; font-weight: 800; color: var(--purple); overflow: hidden; flex-shrink: 0; }
.stand-logo img { width: 100%; height: 100%; object-fit: cover; }
.stand-card h3 { font-size: 1.05rem; }
.stand-meta { font-size: 0.78rem; color: #8b84a3; font-weight: 600; }
.like-stand-btn { border: none; background: var(--mist); width: 38px; height: 38px; border-radius: 50%; font-size: 1.1rem; color: #b0a8c9; cursor: pointer; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.like-stand-btn.liked { background: #ffe3e8; color: var(--coral); }
.stand-desc { font-size: 0.88rem; color: #4d4763; line-height: 1.4; margin: 0; flex: 1; }
.stand-time-badge { display: inline-block; background: var(--mist); color: var(--purple); font-size: 0.75rem; font-weight: 700; padding: 5px 10px; border-radius: 999px; }
.stand-card-actions { display: flex; gap: 8px; margin-top: 4px; flex-wrap: wrap; }
.stand-card-actions button { flex: 1; min-width: 100px; border: none; border-radius: 10px; padding: 9px; font-weight: 700; font-size: 0.8rem; cursor: pointer; }
.edit-stand-btn { background: var(--mist); color: var(--ink); }
.stand-quiz-btn { background: linear-gradient(135deg, var(--coral), #ff8360); color: #fff; }
.stand-owner-note { font-size: 0.78rem; color: #a79fc2; font-style: italic; }

.empty-state { text-align: center; padding: 50px 20px; color: #8b84a3; }
.empty-state span { font-size: 2rem; }
.empty-state h3 { margin: 10px 0 6px; color: var(--ink); }

/* ============ MODALS ============ */
.modal { position: fixed; inset: 0; background: rgba(20, 12, 40, 0.55); display: flex; align-items: center; justify-content: center; padding: 20px; z-index: 100; }
.modal-close { position: absolute; top: 14px; right: 14px; border: none; background: var(--mist); width: 32px; height: 32px; border-radius: 50%; font-size: 1.1rem; cursor: pointer; }

.quiz-card, .editor-card { background: var(--paper); border-radius: 22px; padding: 30px 26px; width: 100%; max-width: 460px; max-height: 90vh; overflow-y: auto; position: relative; }
.quiz-progress { height: 4px; background: var(--line); border-radius: 4px; overflow: hidden; margin-bottom: 16px; }
.quiz-progress span { display: block; height: 100%; width: 100%; background: var(--coral); transition: width 1s linear; }
.quiz-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.tag { font-size: 0.7rem; font-weight: 800; letter-spacing: 0.05em; padding: 4px 10px; border-radius: 999px; }
.tag.coral { background: #ffe3e8; color: var(--coral); }
#quizTimer { font-weight: 800; font-size: 1.3rem; color: var(--purple); }
.eyebrow { color: var(--purple); font-weight: 800; font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 4px; }
#quizQuestion { font-size: 1.25rem; margin-bottom: 18px; }

.answer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.answer-grid button { border: none; border-radius: 14px; padding: 16px 12px; font-weight: 700; text-align: left; cursor: pointer; color: #fff; font-size: 0.92rem; }
.answer-grid button:nth-child(1) { background: #4c6bff; }
.answer-grid button:nth-child(2) { background: var(--coral); }
.answer-grid button:nth-child(3) { background: #ffb020; }
.answer-grid button:nth-child(4) { background: var(--lime); }
.answer-grid button:disabled { opacity: 0.55; cursor: default; }
.answer-grid button.correct { outline: 3px solid var(--ink); opacity: 1; }

.quiz-result { text-align: center; margin-top: 20px; }
.quiz-result strong { display: block; font-size: 1.15rem; margin-bottom: 14px; }
.quiz-result button { border: none; background: var(--purple); color: #fff; font-weight: 700; padding: 12px 20px; border-radius: 12px; cursor: pointer; }

.editor-card h2 { font-size: 1.3rem; margin-bottom: 18px; }
.editor-card label { display: flex; flex-direction: column; gap: 6px; font-size: 0.82rem; font-weight: 700; color: #4d4763; margin-bottom: 14px; }
.editor-card input, .editor-card textarea, .editor-card select { border: 2px solid var(--line); border-radius: 12px; padding: 11px 13px; font-size: 0.95rem; font-weight: 500; color: var(--ink); outline: none; }
.editor-card input:focus, .editor-card textarea:focus, .editor-card select:focus { border-color: var(--purple); }
.editor-card textarea { resize: vertical; min-height: 70px; }
.editor-card.wide { max-width: 640px; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.editor-card h3 { font-size: 0.95rem; margin: 22px 0 10px; }
.overview-stat { font-size: 1rem; color: #4d4763; }
.overview-stat strong { color: var(--purple); font-size: 1.3rem; }
.overview-list { display: flex; flex-direction: column; gap: 6px; }
.overview-row { display: flex; align-items: center; justify-content: space-between; background: var(--mist); border-radius: 10px; padding: 8px 12px; font-size: 0.85rem; }
.overview-row strong { color: var(--purple); }
.overview-empty { color: #8b84a3; font-size: 0.85rem; }
.overview-divider { border: none; border-top: 1px solid var(--line); margin: 26px 0; }
.overview-hint { font-size: 0.82rem; color: #6b6480; margin: 0 0 12px; }
.gdpr-lookup-form { display: flex; gap: 10px; margin-bottom: 14px; }
.gdpr-lookup-form input { flex: 1; }
.gdpr-participant-card { background: var(--mist); border-radius: 12px; padding: 14px; margin-bottom: 10px; font-size: 0.85rem; }
.gdpr-participant-card dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; margin: 0 0 12px; }
.gdpr-participant-card dt { color: #8b84a3; font-weight: 600; }
.gdpr-participant-card dd { margin: 0; color: var(--ink); }
.gdpr-participant-actions { display: flex; gap: 8px; }

.organizer-code-form { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.organizer-code-form input { flex: 1; min-width: 140px; }
.organizer-code-result { background: var(--mist); border-radius: 12px; padding: 14px; margin-bottom: 14px; font-size: 0.85rem; }
.organizer-code-result .link-row { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.organizer-code-result .link-row input { flex: 1; font-family: monospace; font-size: 0.8rem; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; background: var(--paper); color: var(--ink); }
.organizer-code-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--mist); border-radius: 10px; padding: 8px 12px; font-size: 0.85rem; }
.organizer-code-row .oc-info { display: flex; flex-direction: column; min-width: 0; }
.organizer-code-row .oc-info small { color: #8b84a3; font-size: 0.75rem; }
.organizer-code-row .oc-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.status-badge { font-size: 0.7rem; font-weight: 800; padding: 3px 9px; border-radius: 999px; letter-spacing: 0.03em; }
.status-badge.used { background: #dcf5e5; color: #1c8a4b; }
.status-badge.waiting { background: #fdeecb; color: #a2670e; }
.copy-link-btn { border: 1px solid var(--line); background: var(--paper); color: var(--ink); font-weight: 700; font-size: 0.75rem; padding: 6px 10px; border-radius: 8px; cursor: pointer; }

.project-picker { background: var(--mist); border-radius: 14px; padding: 12px 14px; margin-bottom: 18px; }
.project-picker strong { display: block; font-size: 0.85rem; }
.project-picker small { display: block; color: #8b84a3; margin: 2px 0 10px; }
.project-chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.project-chip { border: 2px solid var(--purple); background: var(--paper); color: var(--purple); font-weight: 700; font-size: 0.78rem; padding: 7px 12px; border-radius: 999px; cursor: pointer; }

.stand-quiz-section { background: var(--mist); border-radius: 14px; padding: 14px; margin-bottom: 14px; }
.stand-quiz-section > .checkbox-field { margin-bottom: 0; }
.stand-quiz-fields { margin-top: 14px; display: flex; flex-direction: column; }
.answer-editor-mini { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.answer-editor-mini label { font-size: 0.78rem; }
.answer-editor-mini label span { color: var(--purple); margin-right: 4px; }
.save-project-field { background: var(--mist); border-radius: 12px; padding: 12px 14px; }

.quiz-question-block { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 14px; margin-bottom: 12px; }
.quiz-question-block-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.quiz-question-block-head strong { font-size: 0.85rem; }
.remove-question-btn { border: none; background: none; color: var(--coral); font-weight: 700; font-size: 0.76rem; cursor: pointer; padding: 0; }
.add-question-btn { align-self: flex-start; border: 2px dashed var(--purple); background: none; color: var(--purple); font-weight: 700; font-size: 0.82rem; padding: 9px 16px; border-radius: 12px; cursor: pointer; margin-bottom: 14px; }

.quiz-summary { text-align: center; padding: 10px 0 4px; }
.quiz-summary-emoji { font-size: 2.4rem; display: block; margin-bottom: 6px; }
.quiz-summary h2 { margin-bottom: 8px; }
.quiz-summary p { color: #6b6480; margin: 0 0 18px; }
.quiz-summary button { border: none; background: var(--purple); color: #fff; font-weight: 700; padding: 12px 20px; border-radius: 12px; cursor: pointer; }

.stand-logo-editor { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.stand-logo-preview { width: 60px; height: 60px; border-radius: 14px; background: var(--mist); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; color: var(--purple); overflow: hidden; flex-shrink: 0; }
.stand-logo-preview img { width: 100%; height: 100%; object-fit: cover; }
.stand-logo-controls small { display: block; color: #8b84a3; margin: 2px 0 8px; }
.logo-file-button { display: inline-block; background: var(--mist); border-radius: 10px; padding: 8px 12px; font-size: 0.78rem; font-weight: 700; cursor: pointer; }
.logo-file-button input { display: none; }
#removeStandLogo { border: none; background: none; color: var(--coral); font-weight: 700; font-size: 0.78rem; cursor: pointer; margin-left: 8px; }

.editor-actions { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; gap: 10px; flex-wrap: wrap; }
.editor-actions-left { display: flex; align-items: center; gap: 10px; }
.editor-actions-right { display: flex; gap: 10px; margin-left: auto; }
.primary-btn { border: none; background: var(--purple); color: #fff; font-weight: 700; padding: 12px 20px; border-radius: 12px; cursor: pointer; }
.secondary-btn { border: none; background: var(--mist); color: var(--ink); font-weight: 700; padding: 12px 18px; border-radius: 12px; cursor: pointer; }
.danger-btn { border: none; background: none; color: var(--coral); font-weight: 700; cursor: pointer; padding: 12px 0; }

@media (max-width: 480px) {
  .join-panel { padding: 28px 20px; }
  .answer-grid { grid-template-columns: 1fr; }
  .field-grid { grid-template-columns: 1fr; }
  .answer-editor-mini { grid-template-columns: 1fr; }
  .conf-hero { flex-direction: column; align-items: flex-start; }
  .conf-hero-actions { width: 100%; }
  .quiz-cta { flex: 1; }
  .stand-card-actions button { min-width: 0; }
}