/* ============================================================
   Login page — glass card on dark
   ============================================================ */

.l-form {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 1.5rem;
}

.form {
  width: 100%;
  max-width: 380px;
  padding: 3rem 2.25rem;
  border-radius: var(--radius);
  background: var(--panel-bg-strong);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow-card);
  -webkit-backdrop-filter: blur(var(--panel-blur));
  backdrop-filter: blur(var(--panel-blur));
}

.form__title {
  font-weight: 700;
  font-size: 1.6rem;
  margin: 0 0 2rem;
  text-align: center;
  color: var(--text-color);
  letter-spacing: -0.01em;
}

.form__div {
  position: relative;
  height: 56px;
  margin-bottom: 1.75rem;
}

.form__input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  font-size: var(--normal-font-size);
  border: 1.5px solid var(--panel-border);
  border-radius: var(--radius-sm);
  outline: none;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-color);
  transition: border-color 0.25s, background 0.25s;
}

.form__label {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  padding: 0 0.35rem;
  background-color: transparent;
  color: var(--input-color);
  font-size: var(--normal-font-size);
  pointer-events: none;
  transition: 0.25s ease;
}

.form__button {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.85rem 2rem;
  outline: none;
  border: none;
  background-image: var(--accent-gradient);
  color: #0b1020;
  font-size: var(--normal-font-size);
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
}

.form__button:hover {
  filter: brightness(1.05);
  box-shadow: 0 12px 28px -8px rgba(124, 156, 255, 0.55);
  transform: translateY(-1px);
}

.form__button:active {
  transform: translateY(0);
}

/* Floating label: on focus or when filled, lift the label to the top border */
.form__input:focus + .form__label,
.form__input:not(:placeholder-shown) + .form__label {
  top: 0;
  left: 0.6rem;
  transform: translateY(-50%);
  font-size: var(--small-font-size);
  color: var(--first-color);
  background-color: #10152a; /* solid chip cuts the input border only when lifted */
}

.form__input:focus {
  border-color: var(--first-color);
  background: rgba(124, 156, 255, 0.06);
}

#error-message {
  text-align: center;
  color: #ff8a9b;
  min-height: 1.2em;
  margin: 0 0 1rem;
  font-size: var(--small-font-size);
}