/* ===== 혜승이 생일 — 밤하늘 별자리 테마 ===== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Inter:wght@300;400;500&display=swap');

:root {
  --sky: #050810;
  --star: #f0f4ff;
  --glow: rgba(200, 220, 255, 0.4);
  --glow-strong: rgba(200, 220, 255, 0.8);
  --accent: rgba(180, 200, 255, 0.9);
  --text: #e8ecf4;
  --text-dim: rgba(200, 210, 230, 0.5);
  --surface: rgba(255, 255, 255, 0.04);
  --surface-border: rgba(255, 255, 255, 0.08);
}

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

html {
  background: #000;
}

body {
  max-width: 390px;
  margin: 0 auto;
  min-height: 100dvh;
  background: var(--sky);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* --- 타이포 --- */
.font-serif {
  font-family: 'Cormorant Garamond', serif;
}

.font-sans {
  font-family: 'Inter', sans-serif;
}

/* --- 별이 박힌 밤하늘 배경 --- */
.starfield {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.starfield-dot {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--star);
  border-radius: 50%;
  animation: twinkle ease-in-out infinite alternate;
}

@keyframes twinkle {
  0%   { opacity: 0.2; }
  100% { opacity: 1; }
}

/* --- 글로우 유틸 --- */
.glow-text {
  text-shadow: 0 0 20px rgba(200, 220, 255, 0.3);
}

.glow-dot {
  box-shadow: 0 0 6px 2px var(--glow);
}

/* --- 반투명 바 (하단 오버레이) --- */
.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 390px;
  z-index: 50;
  padding: 24px 20px 28px;
  background: linear-gradient(to top, rgba(5,8,16,0.95) 0%, rgba(5,8,16,0.7) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* --- 버튼 --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: var(--text);
  font-family: 'Cormorant Garamond', serif;
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.05em;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  backdrop-filter: blur(8px);
}

.btn-primary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 20px rgba(200, 220, 255, 0.15);
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: transparent;
  color: var(--text-dim);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: color 0.3s;
  text-decoration: none;
}

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

/* --- 네비게이션 --- */
.nav-row {
  display: flex;
  gap: 24px;
  justify-content: center;
}

/* --- 입력 --- */
.input-field {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 300;
  outline: none;
  transition: border-color 0.3s;
}

.input-field:focus {
  border-color: rgba(200, 220, 255, 0.4);
}

.input-field::placeholder {
  color: var(--text-dim);
}

/* --- 카드 --- */
.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 16px;
  transition: border-color 0.3s;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

/* --- 페이드 인 --- */
@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fade-in 0.5s ease-out both;
}

/* --- 스크롤바 --- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

/* --- 숨김 --- */
.hidden { display: none !important; }