:root {
  --bg: #ffffff;
  --text: #0d0d0d;
  --input-bg: #ffffff;
  --border: #e5e7eb;
  --box-bg: #f7f7f8;
  --divider: #e5e7eb;
  --button: #114634;
  --button-active: #247156;
}

.dark {
  --bg: #000000;
  --text: #ffffff;
  --input-bg: #1c1c1e;
  --border: #2c2c2e;
  --box-bg: #1c1c1e;
  --divider: #2c2c2e;
  --button: #114634;
  --button-active: #247156;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
}

.app {
  height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: 6px 26px calc(16px + env(safe-area-inset-bottom));
  box-sizing: border-box;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  margin-top: 4px;
  margin-bottom: 6px;
}

.logo {
  width: 240px;
  max-width: 70%;
  filter: invert(1);
}

.dark .logo {
  filter: none;
}

.theme-btn {
  width: 42px;
  height: 42px;

  border-radius: 50%;
  background: var(--box-bg);
  border: 1px solid var(--border);

  display: flex;
  align-items: center;
  justify-content: center;

  cursor: pointer;

  -webkit-tap-highlight-color: transparent;
  outline: none;
  box-shadow: none;
}

.theme-btn:focus,
.theme-btn:focus-visible,
.theme-btn:active {
  outline: none;
  box-shadow: none;
  transform: none;
}

.theme-btn:active {
  transform: scale(0.95);
  box-shadow:
    0 0 0 2px rgba(10, 132, 255, 0.25),
    0 0 12px rgba(10, 132, 255, 0.5);
}

.theme-btn img {
  width: 20px;
  height: 20px;
}

#screen1,
#screen2 {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.content {
  flex: 1;
}

label {
  display: block;
  margin-top: 18px;
  font-size: 18px;
  text-transform: uppercase;
  font-weight: 500;
}

input {
  width: 100%;
  padding: 16px;
  margin-top: 8px;
  border-radius: 12px;
  font-size: 24px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  text-align: center;
  box-sizing: border-box;
}

input:focus {
  outline: none;
}

button {
  width: 100%;
  padding: 16px;

  border-radius: 12px;
  border: none;
  font-size: 16px;
  font-weight: 600;
  background: var(--button);
  color: white;
  user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
}

button:active {
  background: var(--button-active);
  transform: scale(0.99);
}

.bottom-button {
  margin-top: 12px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.top-values {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.top-box {
  flex: 1;
  padding: 16px;
  border-radius: 12px;
  background: var(--box-bg);
  border: 1px solid var(--border);
  text-align: center;
}

.top-label {
  font-size: 14px;
  opacity: 0.7;
  text-transform: uppercase;
}

.top-value {
  font-size: 36px;
  font-weight: 700;
}

.top-value-big {
  font-size: 56px;
  font-weight: 700;
}

.divider {
  height: 2px;
  margin: 20px 0;
  background: var(--divider);
}

input.error {
  border-color: #ef4444;
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.15);
}

.dark input.error {
  border-color: #ff4d4d;
  box-shadow: 0 0 0 2px rgba(255, 77, 77, 0.15);
}