:root {
  --bg: #f3f8fc;
  --bg-accent: #e3eff8;
  --primary: #2f80ed;
  --primary-dark: #1d6bd8;
  --primary-soft: #dbeafe;
  --text: #1e3a5f;
  --text-soft: #5b7a9d;
  --danger: #e0483e;
  --radius: 14px;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(1000px 500px at 80% -10%, var(--bg-accent), transparent),
    radial-gradient(800px 400px at 10% 110%, #e8f6f3, transparent),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

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

.menu {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
  padding: 40px 20px 80px;
}

.title {
  font-size: clamp(44px, 8vw, 84px);
  font-weight: 800;
  letter-spacing: 2px;
  margin: 0;
  color: var(--text);
  text-shadow: 0 4px 0 rgba(47, 128, 237, 0.12);
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: min(360px, 90vw);
}

.btn {
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-weight: 700;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.btn-big {
  padding: 18px 28px;
  font-size: 22px;
  color: #fff;
  background: linear-gradient(180deg, var(--primary), var(--primary-dark));
  box-shadow: 0 6px 0 rgba(29, 107, 216, 0.35), 0 10px 20px rgba(47, 128, 237, 0.25);
}

.btn-big:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 0 rgba(29, 107, 216, 0.35), 0 14px 24px rgba(47, 128, 237, 0.3);
}

.btn-big:active {
  transform: translateY(2px);
  box-shadow: 0 3px 0 rgba(29, 107, 216, 0.35);
}

.btn-primary {
  padding: 10px 22px;
  font-size: 16px;
  color: #fff;
  background: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: default;
}

.join-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.join-label {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-soft);
  letter-spacing: 0.5px;
}

.code-input-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.code-inputs {
  display: flex;
  gap: 10px;
}

.code-cell {
  width: 58px;
  height: 68px;
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  color: var(--text);
  background: #fff;
  border: 2px solid #c9dcee;
  border-radius: 12px;
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
  caret-color: var(--primary);
}

.code-cell:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}

.code-submit {
  width: 58px;
  height: 68px;
  font-size: 30px;
  border: none;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  transition: background 0.12s ease, transform 0.12s ease;
}

.code-submit:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateX(2px);
}

.code-submit:disabled {
  background: #b9cfe4;
  cursor: default;
}

/* Профиль внизу */
.profile-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px;
  border-top: 1px solid rgba(30, 58, 95, 0.08);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(6px);
}

.profile-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.profile-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(30, 58, 95, 0.2);
}

.profile-avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 20px;
}

.profile-name {
  font-weight: 700;
  font-size: 17px;
}

.profile-loading {
  color: var(--text-soft);
}

.link-button {
  background: none;
  border: none;
  color: var(--primary);
  font-size: 15px;
  cursor: pointer;
  font-family: inherit;
  padding: 4px 6px;
}

.link-button:hover {
  text-decoration: underline;
}

/* Модальное окно */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(30, 58, 95, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 10;
}

.modal {
  position: relative;
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  width: min(400px, 100%);
  box-shadow: 0 20px 60px rgba(30, 58, 95, 0.3);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: none;
  border: none;
  font-size: 28px;
  color: var(--text-soft);
  cursor: pointer;
  line-height: 1;
}

.modal-title {
  margin: 0;
  font-size: 26px;
  text-align: center;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-soft);
}

.field input[type='text'],
.field input[type='password'] {
  padding: 12px 14px;
  font-size: 16px;
  border: 2px solid #c9dcee;
  border-radius: 10px;
  outline: none;
  font-family: inherit;
}

.field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}

.avatar-picker {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar-preview {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #c9dcee;
}

.avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 24px;
  font-weight: 700;
}

.form-error {
  background: #fdecea;
  color: var(--danger);
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 14px;
}

@media (max-width: 480px) {
  .code-cell {
    width: 48px;
    height: 58px;
    font-size: 26px;
  }
  .code-submit {
    width: 48px;
    height: 58px;
  }
}