@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500&display=swap');

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

:root {
  --black:      #111111;
  --dark:       #333333;
  --mid:        #666666;
  --light:      #999999;
  --border:     #e5e5e5;
  --bg-subtle:  #f7f7f7;
  --white:      #ffffff;
  --max:        660px;
  --font:       'Noto Sans KR', -apple-system, 'Helvetica Neue', sans-serif;
}

html { font-size: 16px; }

body {
  font-family: var(--font);
  font-weight: 300;
  background: var(--white);
  color: var(--black);
  line-height: 1.8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ── Header ────────────────────────────────────────────────── */

header {
  padding: 1.75rem 2rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-title {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: var(--black);
  text-decoration: none;
  white-space: nowrap;
}

nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.82rem;
}

.nav-email {
  color: var(--light);
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

nav a {
  color: var(--mid);
  text-decoration: none;
  transition: color 0.15s;
}

nav a:hover { color: var(--black); }

.lang-dropdown-wrap {
  position: relative;
}

.lang-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0.1rem 0.2rem;
  color: var(--light);
  transition: color 0.15s;
  line-height: 1;
}

.lang-toggle:hover { color: var(--mid); }

.lang-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.3rem;
  z-index: 200;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  flex-direction: column;
  min-width: 110px;
}

.lang-menu.open { display: flex; }

.lang-option {
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--mid);
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-radius: 5px;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}

.lang-option:hover     { background: var(--bg-subtle); color: var(--black); }
.lang-option.lang-active { color: var(--black); font-weight: 500; }

.btn-ghost {
  background: none;
  border: none;
  color: var(--light);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 300;
  cursor: pointer;
  padding: 0;
  transition: color 0.15s;
}

.btn-ghost:hover { color: var(--black); }

/* ── Main ──────────────────────────────────────────────────── */

main {
  flex: 1;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 4rem 2rem 7rem;
}

.date-label {
  font-size: 0.78rem;
  color: var(--light);
  letter-spacing: 0.04em;
  margin-bottom: 2.75rem;
  font-weight: 300;
}

/* ── Question ──────────────────────────────────────────────── */

.question {
  font-size: 1.55rem;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: -0.025em;
  color: var(--black);
  margin-bottom: 0;
}

/* ── Answer card (question + form, no box) ──────────────────── */

.answer-card {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.answer-card .question {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.65;
  color: var(--dark);
  margin-bottom: 0;
}

/* ── Answer form ───────────────────────────────────────────── */

.answer-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

textarea {
  width: 100%;
  min-height: 160px;
  padding: 1rem 1.125rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--font);
  font-size: 0.975rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--black);
  background: var(--white);
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
}

textarea:focus { border-color: var(--black); }
textarea::placeholder { color: var(--light); }

.form-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1rem;
}

.char-count {
  font-size: 0.78rem;
  color: var(--light);
}

/* ── Buttons ───────────────────────────────────────────────── */

.btn-primary {
  display: inline-block;
  padding: 0.65rem 1.75rem;
  background: var(--mid);
  color: var(--white);
  border: none;
  border-radius: 5px;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover    { background: var(--dark); }
.btn-primary:disabled { background: var(--light); cursor: default; }

.btn-text {
  background: none;
  border: none;
  color: var(--light);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 300;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s;
}

.btn-text:hover { color: var(--mid); }

/* ── Auth box ──────────────────────────────────────────────── */

.auth-box {
  padding: 2rem;
  background: var(--bg-subtle);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.answer-preview-label {
  font-size: 0.78rem;
  color: var(--light);
  margin-bottom: 0.25rem;
}

.answer-preview-text {
  font-size: 0.925rem;
  color: var(--dark);
  line-height: 1.7;
  white-space: pre-wrap;
  max-height: 5.5em;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, black 60%, transparent);
  mask-image: linear-gradient(to bottom, black 60%, transparent);
}

.auth-desc {
  font-size: 0.9rem;
  color: var(--mid);
  line-height: 1.75;
}

.auth-row {
  display: flex;
  gap: 0.625rem;
}

input[type="email"] {
  flex: 1;
  padding: 0.65rem 1rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--black);
  background: var(--white);
  outline: none;
  transition: border-color 0.2s;
}

input[type="email"]:focus        { border-color: var(--black); }
input[type="email"]::placeholder { color: var(--light); }
input[type="email"]:disabled     { background: var(--bg-subtle); color: var(--light); }

.auth-msg {
  font-size: 0.82rem;
  color: var(--mid);
  min-height: 1.2em;
}

.auth-msg.error { color: #c0392b; }

/* ── Feed ──────────────────────────────────────────────────── */

.feed-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.feed-label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--light);
}

.feed-count {
  font-size: 0.78rem;
  color: var(--light);
}

.feed-item {
  padding: 1.375rem 0;
  border-bottom: 1px solid var(--border);
}

.feed-item:first-child { border-top: 1px solid var(--border); }

.feed-content {
  font-size: 0.95rem;
  line-height: 1.82;
  color: var(--black);
  white-space: pre-wrap;
  word-break: break-word;
}

.feed-item-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.5rem;
}

.feed-time {
  font-size: 0.76rem;
  color: var(--light);
}

.admin-delete-btn {
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 0.75rem;
  color: var(--light);
  cursor: pointer;
  padding: 0;
  transition: color 0.15s;
}

.admin-delete-btn:hover { color: #c0392b; }

.feed-empty {
  font-size: 0.9rem;
  color: var(--light);
  padding: 1.5rem 0;
}

/* ── Feed tabs ─────────────────────────────────────────────── */

.feed-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.6rem 0;
  margin-bottom: -1px;
  margin-right: 2rem;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--light);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  letter-spacing: 0.01em;
}

.tab-btn:hover { color: var(--mid); }

.tab-active {
  color: var(--black);
  border-bottom-color: var(--black);
  font-weight: 400;
}

.tab-count {
  font-size: 0.75rem;
  color: var(--light);
  margin-left: 0.35rem;
}

.tab-active .tab-count { color: var(--mid); }

/* ── Philosopher feed items ─────────────────────────────────── */

.philosopher-item {
  padding: 1.5rem 0;
}

.philosopher-quote {
  font-size: 0.975rem;
  font-style: italic;
  color: var(--dark);
  line-height: 1.75;
  margin-bottom: 0.6rem;
  word-break: break-word;
}

.philosopher-meta {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

.philosopher-name {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--dark);
}

.philosopher-era {
  font-size: 0.76rem;
  color: var(--light);
}

/* ── History page ──────────────────────────────────────────── */

.page-title {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--black);
  margin-bottom: 3rem;
}

.history-group {
  margin-bottom: 3.5rem;
}

.history-date-label {
  font-size: 0.78rem;
  color: var(--light);
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
}

.history-card {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.history-question-text {
  font-size: 1rem;
  font-weight: 400;
  color: var(--dark);
  line-height: 1.65;
  letter-spacing: -0.01em;
}

.history-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

.history-answer-text {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--black);
  line-height: 1.82;
  white-space: pre-wrap;
  word-break: break-word;
}

.history-empty {
  font-size: 0.9rem;
  color: var(--light);
}

/* ── Feed login prompt ─────────────────────────────────────── */

.feed-login-prompt {
  margin-top: 2rem;
  padding: 1.125rem 1.5rem;
  background: var(--bg-subtle);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--mid);
}

/* ── Misc ──────────────────────────────────────────────────── */

.loading-text { font-size: 0.85rem; color: var(--light); }
.no-question  { font-size: 0.95rem; color: var(--mid); }

/* ── History feed (전체 기록 내 답변 목록) ───────────────────── */

.history-feed {
  margin-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.history-feed .feed-item:first-child { border-top: none; }

/* ── Philosopher photo grid ─────────────────────────────────── */

.pre-philosophers {
  margin-bottom: 2rem;
}

.philosopher-card-grid,
.pre-philosophers,
#feed-philosophers {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.philosopher-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  width: calc(50% - 0.5rem);
}

.phil-photo-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  flex-shrink: 0;
}

.phil-no-photo {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
}

.phil-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: filter 0.35s ease, transform 0.35s ease;
}

.phil-quote-overlay {
  position: absolute;
  inset: 0;
  background: rgba(17, 17, 17, 0.82);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1rem 0.875rem;
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  overflow-y: auto;
}

.phil-photo-wrap:hover .phil-photo {
  filter: blur(3px) brightness(0.45);
  transform: scale(1.05);
}

.phil-photo-wrap:hover .phil-quote-overlay {
  opacity: 1;
}

.phil-quote-text {
  font-size: 0.78rem;
  line-height: 1.6;
  color: #fff;
  text-align: center;
}

.phil-quote-orig {
  font-style: italic;
  color: rgba(255,255,255,0.7);
  font-size: 0.72rem;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
}

.phil-quote-kr {
  color: #fff;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
}

.phil-name {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--dark);
  text-align: center;
  line-height: 1.3;
}

.phil-era {
  font-size: 0.68rem;
  color: var(--light);
  text-align: center;
}

/* ── Toast ─────────────────────────────────────────────────── */

.toast {
  position: fixed;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(0.75rem);
  background: var(--black);
  color: var(--white);
  padding: 0.55rem 1.25rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 300;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 400;
  white-space: nowrap;
  pointer-events: none;
}

.toast-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Feed sections (탭 제거 후) ─────────────────────────────── */

.feed-section-label {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--light);
  margin-bottom: 0.75rem;
}

.feed-count-badge {
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--light);
  margin-left: 0.4rem;
  letter-spacing: 0;
  text-transform: none;
}

.feed-section-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0 2rem;
}

/* ── History section ───────────────────────────────────────── */

.history-section-label {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--light);
  margin-bottom: 1.75rem;
}

.all-answers-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--light);
  cursor: pointer;
  padding: 0.5rem 0;
  margin-top: 0.75rem;
  transition: color 0.15s;
}

.all-answers-btn:hover { color: var(--mid); }

.toggle-arrow {
  font-size: 0.72rem;
}

.all-answers-content {
  margin-top: 0.5rem;
  border-top: 1px solid var(--border);
  padding-top: 0.25rem;
}

/* ── About modal ───────────────────────────────────────────── */

.site-title { cursor: pointer; }


.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.35);
  z-index: 100;
  padding: 1.5rem;
  box-sizing: border-box;
}

.modal-backdrop.modal-open {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-box {
  background: var(--white);
  border-radius: 12px;
  padding: 2.5rem 2.25rem 2rem;
  max-width: 520px;
  width: 100%;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--light);
  cursor: pointer;
  line-height: 1;
  padding: 0;
  transition: color 0.15s;
}

.modal-close:hover { color: var(--black); }

.modal-title {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: var(--black);
  margin-bottom: 1.5rem;
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.925rem;
  color: var(--mid);
  line-height: 1.82;
  font-weight: 300;
}

/* ── Responsive ────────────────────────────────────────────── */

@media (min-width: 560px) {
  .philosopher-card {
    width: calc(33.333% - 0.75rem);
  }
}

@media (max-width: 560px) {
  header  { padding: 1.25rem 1.25rem; }
  main    { padding: 2.5rem 1.25rem 5rem; }
  .question { font-size: 1.25rem; }
  .auth-row { flex-direction: column; }
  .auth-row .btn-primary { align-self: flex-start; }
  .nav-email { display: none; }
}