/* ===================================================
   style.css — Personal Memo Site
   다크 테마 + 글래스모피즘 + 그라데이션 디자인
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ─── 변수 ─────────────────────────────────────────── */
:root {
  --bg:           #080812;
  --bg-2:         #0d0d1c;
  --glass:        rgba(255,255,255,0.04);
  --glass-hover:  rgba(255,255,255,0.07);
  --glass-border: rgba(255,255,255,0.09);
  --accent:       #6366f1;
  --accent-2:     #8b5cf6;
  --accent-3:     #a855f7;
  --accent-glow:  rgba(99,102,241,0.25);
  --text:         #e2e8f0;
  --text-dim:     #94a3b8;
  --text-dimmer:  #475569;
  --danger:       #f43f5e;
  --danger-glow:  rgba(244,63,94,0.2);
  --success:      #22c55e;
  --warning:      #f59e0b;
  --radius:       14px;
  --radius-sm:    8px;
  --shadow:       0 8px 32px rgba(0,0,0,0.5);
  --shadow-sm:    0 4px 16px rgba(0,0,0,0.3);
}

/* ─── 리셋 & 기본 ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── 배경 장식 orbs ──────────────────────────────── */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}
body::before {
  width: 600px; height: 600px;
  top: -200px; left: -200px;
  background: radial-gradient(circle, rgba(99,102,241,0.15), transparent 70%);
  animation: orbFloat 12s ease-in-out infinite alternate;
}
body::after {
  width: 500px; height: 500px;
  bottom: -150px; right: -150px;
  background: radial-gradient(circle, rgba(168,85,247,0.12), transparent 70%);
  animation: orbFloat 15s ease-in-out infinite alternate-reverse;
}
@keyframes orbFloat {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(40px,30px) scale(1.1); }
}

/* ─── 레이아웃 ─────────────────────────────────────── */
#app {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ─── 로그인 화면 ──────────────────────────────────── */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1.5rem;
}

.login-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 420px;
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow), 0 0 80px rgba(99,102,241,0.1);
  animation: cardIn 0.5s cubic-bezier(0.16,1,0.3,1);
  text-align: center;
}
@keyframes cardIn {
  from { opacity:0; transform: translateY(24px) scale(0.97); }
  to   { opacity:1; transform: translateY(0) scale(1); }
}

.login-icon {
  font-size: 3rem;
  margin-bottom: 1.25rem;
  animation: iconPulse 2.5s ease-in-out infinite;
}
@keyframes iconPulse {
  0%,100% { transform: scale(1); }
  50%      { transform: scale(1.08); }
}

.login-card h1 {
  font-size: 1.6rem;
  font-weight: 700;
  background: linear-gradient(135deg, #e2e8f0, var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.4rem;
}
.login-card p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.input-wrap {
  position: relative;
  margin-bottom: 1rem;
}
.input-wrap input {
  width: 100%;
  padding: 0.85rem 3rem 0.85rem 1.1rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.input-wrap input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.input-wrap input::placeholder { color: var(--text-dimmer); }

.toggle-pw {
  position: absolute;
  right: 0.9rem; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  color: var(--text-dimmer);
  cursor: pointer; font-size: 1.1rem;
  transition: color 0.2s;
  padding: 0.2rem;
}
.toggle-pw:hover { color: var(--text); }

.btn-primary {
  width: 100%;
  padding: 0.9rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(99,102,241,0.4);
}
.btn-primary:hover  { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 6px 28px rgba(99,102,241,0.5); }
.btn-primary:active { transform: translateY(0); }

.login-error {
  margin-top: 0.9rem;
  color: var(--danger);
  font-size: 0.875rem;
  min-height: 1.2em;
  animation: shake 0.3s ease;
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  25%      { transform: translateX(-6px); }
  75%      { transform: translateX(6px); }
}

/* ─── 메인 앱 ──────────────────────────────────────── */
#main-screen { display: none; min-height: 100vh; flex-direction: column; }
#main-screen.visible { display: flex; }

/* ─── 헤더 ─────────────────────────────────────────── */
header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8,8,18,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 0 1.5rem;
  height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.header-logo {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 1.1rem; font-weight: 700;
  color: var(--text);
}
.header-logo span { font-size: 1.4rem; }

.header-actions { display: flex; align-items: center; gap: 0.75rem; }

.btn-icon {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  cursor: pointer; padding: 0.5rem 0.75rem;
  font-size: 0.85rem; font-family: inherit;
  display: flex; align-items: center; gap: 0.4rem;
  transition: all 0.2s;
}
.btn-icon:hover { background: var(--glass-hover); color: var(--text); border-color: rgba(255,255,255,0.15); }

.btn-new {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  cursor: pointer; padding: 0.55rem 1.1rem;
  font-size: 0.9rem; font-weight: 600; font-family: inherit;
  display: flex; align-items: center; gap: 0.4rem;
  transition: all 0.2s;
  box-shadow: 0 2px 12px rgba(99,102,241,0.35);
}
.btn-new:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 18px rgba(99,102,241,0.5); }

/* ─── 메인 콘텐츠 ──────────────────────────────────── */
main {
  flex: 1;
  padding: 2rem 1.5rem;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
}

/* ─── 빈 상태 ──────────────────────────────────────── */
.empty-state {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 5rem 2rem;
  color: var(--text-dimmer);
  text-align: center;
  gap: 1rem;
}
.empty-state .empty-icon { font-size: 4rem; opacity: 0.5; }
.empty-state h3 { font-size: 1.1rem; color: var(--text-dim); }
.empty-state p { font-size: 0.875rem; }

/* ─── 메모 그리드 ──────────────────────────────────── */
#memo-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

/* ─── 메모 카드 ─────────────────────────────────────── */
.memo-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
  animation: cardIn 0.3s cubic-bezier(0.16,1,0.3,1);
  display: flex; flex-direction: column; gap: 0.75rem;
}
.memo-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--accent-glow), transparent);
  opacity: 0; transition: opacity 0.2s;
  pointer-events: none;
}
.memo-card:hover { border-color: rgba(99,102,241,0.3); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.memo-card:hover::before { opacity: 1; }

.memo-card-date {
  font-size: 0.75rem;
  color: var(--text-dimmer);
  display: flex; align-items: center; gap: 0.3rem;
}
.memo-card-content {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;
  flex: 1;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  white-space: pre-wrap;
  word-break: break-word;
}
.memo-card-content a { color: var(--accent-2); text-decoration: none; }
.memo-card-content a:hover { text-decoration: underline; }

.memo-card-files {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
}
.file-chip {
  display: inline-flex; align-items: center; gap: 0.3rem;
  background: rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  color: var(--accent-2);
  text-decoration: none;
  transition: all 0.15s;
  cursor: pointer;
  max-width: 150px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.file-chip:hover { background: rgba(99,102,241,0.22); color: #c4b5fd; }
.file-chip .chip-icon { flex-shrink: 0; }

.memo-card-actions {
  display: flex; gap: 0.5rem;
  opacity: 0; transition: opacity 0.15s;
}
.memo-card:hover .memo-card-actions { opacity: 1; }

.btn-card {
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  font-size: 0.78rem;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid;
  transition: all 0.15s;
  display: flex; align-items: center; gap: 0.3rem;
}
.btn-edit {
  background: rgba(99,102,241,0.1);
  border-color: rgba(99,102,241,0.25);
  color: var(--accent-2);
}
.btn-edit:hover { background: rgba(99,102,241,0.2); }

.btn-delete {
  background: rgba(244,63,94,0.08);
  border-color: rgba(244,63,94,0.2);
  color: var(--danger);
}
.btn-delete:hover { background: rgba(244,63,94,0.18); }

/* ─── 모달 (새 메모 / 수정) ────────────────────────── */
#modal-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
#modal-overlay.open { display: flex; }

.modal {
  background: #0f0f1f;
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: 20px;
  width: 100%;
  max-width: 620px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow), 0 0 60px rgba(99,102,241,0.15);
  animation: modalIn 0.25s cubic-bezier(0.16,1,0.3,1);
  display: flex; flex-direction: column;
}
@keyframes modalIn {
  from { opacity:0; transform: scale(0.95) translateY(12px); }
  to   { opacity:1; transform: scale(1) translateY(0); }
}

.modal-header {
  padding: 1.5rem 1.5rem 0;
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h2 { font-size: 1.1rem; font-weight: 600; }
.btn-close {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  cursor: pointer; padding: 0.4rem 0.6rem;
  font-size: 1rem; line-height: 1;
  transition: all 0.15s;
}
.btn-close:hover { color: var(--text); background: var(--glass-hover); }

.modal-body { padding: 1.25rem 1.5rem; display: flex; flex-direction: column; gap: 1rem; flex: 1; }

textarea#modal-content {
  width: 100%;
  min-height: 200px;
  max-height: 360px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.7;
  padding: 1rem;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
textarea#modal-content:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
textarea#modal-content::placeholder { color: var(--text-dimmer); }

/* ─── 파일 업로드 영역 ─────────────────────────────── */
.upload-area {
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-dimmer);
  position: relative;
}
.upload-area:hover, .upload-area.dragover {
  border-color: var(--accent);
  background: rgba(99,102,241,0.05);
  color: var(--text-dim);
}
.upload-area input[type="file"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%;
}
.upload-icon { font-size: 1.8rem; margin-bottom: 0.4rem; }
.upload-area p { font-size: 0.85rem; }
.upload-area small { font-size: 0.75rem; color: var(--text-dimmer); }

/* ─── 업로드 중 파일 목록 ──────────────────────────── */
#pending-files-list { display: flex; flex-direction: column; gap: 0.5rem; }

.pending-file {
  display: flex; align-items: center; gap: 0.75rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  font-size: 0.85rem;
}
.pending-file .pf-icon { font-size: 1.2rem; flex-shrink: 0; }
.pending-file .pf-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }
.pending-file .pf-size { color: var(--text-dimmer); font-size: 0.75rem; flex-shrink: 0; }
.pending-file .pf-status { font-size: 0.75rem; flex-shrink: 0; }
.pf-status.uploading { color: var(--warning); }
.pf-status.done      { color: var(--success); }
.pf-status.error     { color: var(--danger); }
.btn-pf-remove {
  background: none; border: none; color: var(--text-dimmer);
  cursor: pointer; font-size: 1rem; padding: 0 0.2rem;
  transition: color 0.15s; flex-shrink: 0;
}
.btn-pf-remove:hover { color: var(--danger); }

.modal-footer {
  padding: 1rem 1.5rem 1.5rem;
  display: flex; gap: 0.75rem; justify-content: flex-end;
  border-top: 1px solid var(--glass-border);
}
.btn-cancel {
  padding: 0.7rem 1.2rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-family: inherit; font-size: 0.9rem;
  cursor: pointer; transition: all 0.15s;
}
.btn-cancel:hover { background: var(--glass-hover); color: var(--text); }
.btn-save {
  padding: 0.7rem 1.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; border-radius: var(--radius-sm);
  color: #fff;
  font-family: inherit; font-size: 0.9rem; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
  box-shadow: 0 2px 12px rgba(99,102,241,0.35);
}
.btn-save:hover  { opacity: 0.9; transform: translateY(-1px); }
.btn-save:active { transform: translateY(0); }
.btn-save:disabled { opacity: 0.5; pointer-events: none; }

/* ─── 토스트 알림 ───────────────────────────────────── */
#toast-container {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  display: flex; flex-direction: column; gap: 0.6rem;
  z-index: 200;
}
.toast {
  display: flex; align-items: center; gap: 0.6rem;
  background: #1a1a2e;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  min-width: 220px;
  box-shadow: var(--shadow);
  animation: toastIn 0.3s cubic-bezier(0.16,1,0.3,1);
}
@keyframes toastIn {
  from { opacity:0; transform: translateX(20px); }
  to   { opacity:1; transform: translateX(0); }
}
.toast.success { border-color: rgba(34,197,94,0.3); }
.toast.error   { border-color: rgba(244,63,94,0.3); }
.toast.info    { border-color: rgba(99,102,241,0.3); }

/* ─── 반응형 ─────────────────────────────────────────── */
@media (max-width: 600px) {
  main { padding: 1.25rem 1rem; }
  header { padding: 0 1rem; }
  .modal { max-height: 95vh; }
  #memo-list { grid-template-columns: 1fr; }
  .btn-new span { display: none; }
}