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

:root {
  --bg-light: #f4f6fb;
  --bg-dark: #0f1224;

  --card-light: #ffffff;
  --card-dark: #1a1e3a;

  --primary: #6c63ff;
  --primary-soft: #e6e8ff;

  --text-light: #2b2b2b;
  --text-dark: #f1f1f1;
  --text-muted: #8a8fa3;

  --transition: all 0.35s ease;
}

/* ===== RESET ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ===== BODY ===== */
body {
  font-family: "Inter", sans-serif;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1b1f3a, #0f1224);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  transition: var(--transition);
}

/* ===== LIGHT MODE BACKGROUND ===== */
body:not(.dark) {
  background: linear-gradient(135deg, #eef1ff, #f9faff);
}

/* ===== CARD ===== */
.app-card {
  width: 360px;
  max-width: 100%;
  background: var(--card-light);
  border-radius: 1.8rem;
  padding: 2.6rem 2.4rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
  text-align: center;
  transition: var(--transition);
}

/* ===== DARK CARD ===== */
body.dark .app-card {
  background: var(--card-dark);
}

/* ===== TITLE ===== */
.app-title {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-light);
}

body.dark .app-title {
  color: var(--text-dark);
}

/* ===== DESCRIPTION ===== */
.app-desc {
  font-size: 1.4rem;
  line-height: 1.6;
  margin-bottom: 2.6rem;
  color: var(--text-muted);
}

body.dark .app-desc {
  color: #b9bdd6;
}

/* ===== TOGGLE ===== */
.theme-toggle {
  position: relative;
  height: 56px;
  background: var(--primary-soft);
  border-radius: 50px;
  padding: 6px;
  display: flex;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 2.2rem;
}

/* ===== KNOB ===== */
.toggle-knob {
  position: absolute;
  left: 6px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.toggle-icon {
  font-size: 2.2rem;
  color: #fff;
}

/* ===== TEXT ===== */
.toggle-text {
  flex: 1;
  text-align: center;
  font-weight: 600;
  font-size: 1.4rem;
  z-index: 1;
  color: var(--text-light);
  transition: var(--transition);
}

body.dark .toggle-text {
  color: #1a1e3a;
}

/* ===== NIGHT MODE POSITION ===== */
body.dark .toggle-knob {
  left: calc(100% - 50px);
  
}

/* ===== STATUS ===== */
.status-box {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  font-size: 1.3rem;
  color: var(--text-muted);
}

.status-value {
  font-weight: 600;
  color: var(--primary);
}

/* ===== DARK STATUS ===== */
body.dark .status-box {
  color: #b9bdd6;
}

/* ===== HOVER ===== */
.theme-toggle:hover .toggle-knob {
  transform: scale(1.05);
}

/* ===== MOBILE ===== */
@media (max-width: 420px) {
  body {
    padding: 1.5rem;
  }

  .app-card {
    padding: 2.2rem 2rem;
  }
}