:root {
  --bg: #f1f5f9;
  --bg-strong: #e2e8f0;
  --panel: rgba(255, 255, 255, 0.92);
  --line: rgba(148, 163, 184, 0.35);
  --text: #0f172a;
  --muted: #64748b;
  --header: #1e293b;
  --accent: #4f46e5;
  --accent-soft: #e0e7ff;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.16);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Pretendard", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(79, 70, 229, 0.12), transparent 22%),
    radial-gradient(circle at bottom right, rgba(148, 163, 184, 0.18), transparent 28%),
    var(--bg);
}

body {
  min-height: 100vh;
}

button,
input,
a {
  font: inherit;
}

.hidden {
  display: none !important;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.login-screen {
  min-height: 100vh;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.42), rgba(30, 41, 59, 0.18)),
    url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1800&q=80")
      center center / cover no-repeat;
}

.login-backdrop {
  min-height: calc(100vh - 48px);
  display: grid;
  place-items: center;
}

.login-card h1,
.dashboard-header h2,
.stage-topline h3 {
  margin: 0;
}

.login-card {
  width: min(640px, 100%);
  min-height: 210px;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 22px;
  background: rgba(71, 85, 105, 0.34);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.24);
  backdrop-filter: blur(14px);
}

.login-brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 30px 30px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(90deg, rgba(15, 23, 42, 0.08), rgba(255, 255, 255, 0.02)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(15, 23, 42, 0.08));
}

.login-brand .eyebrow {
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 10px;
  letter-spacing: 0.18em;
}

.login-brand h1 {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  color: #f8fafc;
}

.login-form-wrap {
  padding: 24px 20px;
  display: grid;
  align-content: center;
  gap: 10px;
  background: rgba(15, 23, 42, 0.12);
}

.login-card label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.9);
}

.login-card input {
  min-height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.1);
  color: #f8fafc;
  font-size: 11px;
  outline: none;
}

.login-card input::placeholder {
  color: rgba(226, 232, 240, 0.55);
}

.login-card input:focus {
  border-color: rgba(255, 255, 255, 0.32);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.08);
}

.login-card button,
.ghost-button,
.stage-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 14px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.login-card button {
  margin-top: 2px;
  border: none;
  color: #fff;
  background: rgba(31, 41, 55, 0.82);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.22);
  min-height: 34px;
  border-radius: 999px;
  font-size: 11px;
}

.helper-text {
  margin: 0;
  min-height: 16px;
  font-size: 10px;
  color: rgba(248, 250, 252, 0.8);
}

.helper-text:empty {
  visibility: hidden;
}

.dashboard-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.dashboard-header {
  min-height: 88px;
  background: rgba(30, 41, 59, 0.96);
  color: #fff;
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 18px 26px;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
}

.dashboard-header .eyebrow {
  color: #a5b4fc;
  margin-bottom: 6px;
}

.header-center {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  font-size: 13px;
  font-weight: 800;
}

.nav-pill.active {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 10px 24px rgba(79, 70, 229, 0.3);
}

.nav-pill.muted {
  color: #94a3b8;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-badge,
.user-badge {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.status-badge {
  background: rgba(79, 70, 229, 0.18);
  color: #c7d2fe;
}

.user-badge {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.ghost-button {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: transparent;
  color: #fff;
  padding: 0 16px;
}

.dashboard-main {
  flex: 1;
  min-height: calc(100vh - 88px);
  padding: 14px;
}

.main-stage {
  height: calc(100vh - 116px);
  display: flex;
  flex-direction: column;
}

.stage-frame {
  flex: 1;
  min-height: 0;
  border-radius: 28px;
  border: 1px solid rgba(148, 163, 184, 0.26);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.stage-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

@media (max-width: 1180px) {
  .dashboard-header {
    grid-template-columns: 1fr;
    align-items: flex-start;
  }

  .header-center {
    justify-content: flex-start;
  }

  .header-actions {
    flex-wrap: wrap;
  }
}

@media (max-width: 980px) {
  .login-screen {
    padding: 16px;
  }

  .login-backdrop {
    min-height: calc(100vh - 32px);
  }

  .login-card {
    grid-template-columns: 1fr;
  }

  .login-brand {
    padding: 40px 28px 20px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .login-form-wrap {
    padding: 28px;
  }
}

@media (max-width: 720px) {
  .dashboard-main {
    padding: 10px;
  }

  .main-stage {
    height: calc(100vh - 108px);
  }
}