/* ==========================================
   SceneNote — 공통 스타일
   ========================================== */

/* ── CSS Variables ── */
:root {
  --bg-dark:        #1a1a2e;
  --bg-card:        rgba(22, 33, 62, 0.85);
  --bg-card-border: rgba(233, 69, 96, 0.25);
  --accent:         #e94560;
  --accent-hover:   #f06070;
  --accent-glow:    rgba(233, 69, 96, 0.4);
  --text-primary:   #ffffff;
  --text-secondary: #a8b2d8;
  --text-muted:     #6b7a9f;
  --input-bg:       rgba(255, 255, 255, 0.06);
  --input-border:   rgba(255, 255, 255, 0.12);
  --input-focus:    rgba(233, 69, 96, 0.5);
  --orb-1:          rgba(233, 69, 96, 0.15);
  --orb-2:          rgba(72, 52, 212, 0.2);
  --orb-3:          rgba(16, 185, 129, 0.1);
  --radius-card:    20px;
  --radius-input:   12px;
  --radius-btn:     12px;
  --transition:     0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font:           'Outfit', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
}

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

html, body {
  height: 100%;
  font-family: var(--font);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* ==========================================
   배경 & 장식 요소
   ========================================== */

/* 배경 그라디언트 오브 */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  animation: orb-float 8s ease-in-out infinite alternate;
}

.bg-orb--1 {
  width: 500px;
  height: 500px;
  background: var(--orb-1);
  top: -150px;
  right: -100px;
  animation-delay: 0s;
}

.bg-orb--2 {
  width: 400px;
  height: 400px;
  background: var(--orb-2);
  bottom: -100px;
  left: -100px;
  animation-delay: -3s;
}

.bg-orb--3 {
  width: 300px;
  height: 300px;
  background: var(--orb-3);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -5s;
}

@keyframes orb-float {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(20px, 30px) scale(1.05); }
}

.bg-orb--3 {
  animation: orb-float-center 8s ease-in-out infinite alternate;
}
@keyframes orb-float-center {
  0%   { transform: translate(-50%, -50%) scale(1); }
  100% { transform: translate(calc(-50% + 20px), calc(-50% + 20px)) scale(1.05); }
}

/* 필름 스트립 */
.film-strip {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 28px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  z-index: 0;
  display: flex;
  align-items: stretch;
}

.film-strip--left  { left: 0; }
.film-strip--right { right: 0; }

.film-holes {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  width: 100%;
  padding: 20px 0;
}

.film-holes span {
  display: block;
  width: 14px;
  height: 10px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

/* ==========================================
   로그인 레이아웃
   ========================================== */

.login-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

/* ── 로그인 카드 ── */
.login-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-card);
  padding: 48px 40px 36px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.05),
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(233, 69, 96, 0.08);
  animation: card-in 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ==========================================
   로고 / 헤더
   ========================================== */

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.logo-icon {
  font-size: 42px;
  display: block;
  margin-bottom: 12px;
  animation: icon-bounce 2.5s ease-in-out infinite;
}

@keyframes icon-bounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

.logo-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  line-height: 1;
}

.logo-subtitle {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

/* ── 구분선 ── */
.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    rgba(255, 255, 255, 0.12),
    transparent
  );
  margin-bottom: 28px;
}

/* ==========================================
   폼 스타일
   ========================================== */

.login-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.input-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 16px;
  font-size: 15px;
  color: var(--text-muted);
  pointer-events: none;
  line-height: 1;
  z-index: 1;
}

.input-field {
  width: 100%;
  padding: 14px 16px 14px 44px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-input);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 400;
  outline: none;
  transition:
    border-color var(--transition),
    background var(--transition),
    box-shadow var(--transition);
}

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

.input-field:focus {
  border-color: var(--accent);
  background: rgba(233, 69, 96, 0.07);
  box-shadow: 0 0 0 3px var(--input-focus);
}

/* ==========================================
   로그인 버튼
   ========================================== */

.btn-login {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 15px 20px;
  margin-top: 6px;
  background: linear-gradient(135deg, var(--accent) 0%, #c73652 100%);
  border: none;
  border-radius: var(--radius-btn);
  color: #ffffff;
  font-family: var(--font);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition:
    background var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
  box-shadow: 0 4px 20px rgba(233, 69, 96, 0.35);
}

.btn-login::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-login:hover {
  background: linear-gradient(135deg, var(--accent-hover) 0%, #d94060 100%);
  box-shadow: 0 6px 28px rgba(233, 69, 96, 0.55);
  transform: translateY(-2px);
}

.btn-login:hover::before {
  opacity: 1;
}

.btn-login:active {
  transform: translateY(0);
  box-shadow: 0 3px 14px rgba(233, 69, 96, 0.4);
}

.btn-text {
  position: relative;
  z-index: 1;
}

.btn-arrow {
  position: relative;
  z-index: 1;
  font-size: 18px;
  transition: transform var(--transition);
  display: inline-block;
}

.btn-login:hover .btn-arrow {
  transform: translateX(4px);
}

/* ==========================================
   테스트 계정 안내
   ========================================== */

.test-hint {
  margin-top: 24px;
  text-align: center;
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.6;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  padding: 10px 16px;
}

.test-hint strong {
  color: var(--text-secondary);
  font-weight: 600;
}

/* ==========================================
   반응형 — 모바일
   ========================================== */

@media (max-width: 480px) {
  .login-card {
    padding: 36px 24px 28px;
    border-radius: 16px;
  }

  .logo-title {
    font-size: 30px;
  }

  .logo-icon {
    font-size: 36px;
  }

  .film-strip {
    width: 18px;
  }

  .film-holes span {
    width: 10px;
    height: 7px;
  }

  .bg-orb--1 { width: 300px; height: 300px; }
  .bg-orb--2 { width: 250px; height: 250px; }
}

@media (max-width: 360px) {
  .login-card {
    padding: 28px 18px 24px;
  }
  .film-strip {
    display: none;
  }
}

/* ==========================================
   메인 페이지 공통 (main.html에서도 사용)
   ========================================== */

/* 네비게이션바 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 64px;
  background: rgba(22, 33, 62, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.navbar-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.3px;
}

.btn-logout {
  padding: 8px 18px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-logout:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(233, 69, 96, 0.08);
}

/* 탭 메뉴 */
.tab-menu {
  display: flex;
  gap: 4px;
  padding: 20px 32px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  overflow-x: auto;
}

.tab-btn {
  padding: 10px 20px;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  margin-bottom: -1px;
}

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

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* 탭 섹션 */
.tab-section {
  padding: 32px;
}

/* 공통 버튼 */
.btn-primary {
  padding: 10px 20px;
  background: var(--accent);
  border: none;
  border-radius: 10px;
  color: #fff;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-danger {
  padding: 6px 14px;
  background: rgba(233, 69, 96, 0.15);
  border: 1px solid rgba(233, 69, 96, 0.3);
  border-radius: 8px;
  color: var(--accent);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-danger:hover {
  background: rgba(233, 69, 96, 0.25);
}

/* 카드 공통 */
.card {
  background: rgba(22, 33, 62, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 20px;
  backdrop-filter: blur(10px);
}

/* 그리드 레이아웃 */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .tab-menu { padding: 16px 16px 0; }
  .tab-section { padding: 20px 16px; }
  .navbar { padding: 0 16px; }
}

/* 인풋 공통 (메인 페이지용) */
.field-input,
.field-textarea,
.field-select {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition);
  resize: vertical;
}

.field-input::placeholder,
.field-textarea::placeholder {
  color: var(--text-muted);
}

.field-input:focus,
.field-textarea:focus,
.field-select:focus {
  border-color: var(--accent);
}

.field-select option {
  background: #16213e;
}

/* 뱃지 */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.badge--img   { background: rgba(72, 52, 212, 0.25); color: #a78bfa; }
.badge--video { background: rgba(233, 69, 96, 0.2);  color: #f87171; }
.badge--music { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.badge--etc   { background: rgba(255, 255, 255, 0.1); color: #a8b2d8; }

/* ==========================================
   인증 페이지 공통 추가 스타일
   ========================================== */

/* 뒤로가기 링크 */
.back-link {
  position: fixed;
  top: 20px;
  left: 40px;
  z-index: 10;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--transition);
}

.back-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
}

/* 인증 전환 링크 (로그인 ↔ 회원가입) */
.auth-switch {
  margin-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.auth-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  margin-left: 4px;
  transition: color var(--transition);
}

.auth-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ==========================================
   index.html — 웰컴 카드 전용 스타일
   ========================================== */

.welcome-card {
  max-width: 480px;
}

.welcome-desc {
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

/* 기능 뱃지 그룹 */
.feature-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 28px;
}

.feature-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 5px 12px;
  white-space: nowrap;
  transition: all var(--transition);
}

.feature-badge:hover {
  background: rgba(233, 69, 96, 0.12);
  border-color: rgba(233, 69, 96, 0.3);
  color: var(--text-primary);
}

/* 액션 버튼 영역 */
.welcome-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 보조(회원가입) 버튼 */
.btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px 20px;
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-btn);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(233, 69, 96, 0.08);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0);
}

/* 웰컴 카드 - 반응형 */
@media (max-width: 480px) {
  .back-link {
    left: 16px;
    top: 12px;
    font-size: 12px;
    padding: 6px 10px;
  }

  .feature-badges {
    gap: 6px;
  }

  .feature-badge {
    font-size: 11px;
    padding: 4px 10px;
  }
}