/* ============================================================
   CENTROIA ACADEMY — LOGIN PAGE STYLES
   ============================================================ */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 20px 40px;
  background:
    radial-gradient(circle at 12% 0%, rgba(232,111,42,.12), transparent 36%),
    radial-gradient(circle at 88% 8%, rgba(36,79,219,.06), transparent 30%),
    var(--paper);
}

.login-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  max-width: 960px;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(16,16,16,.14);
  border: 1px solid var(--line);
}

/* ---- Visual panel (left) ---- */
.login-visual {
  background: var(--black);
  color: var(--white);
  padding: 64px 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.login-visual::before {
  content: "";
  position: absolute;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  right: -70px; top: -70px;
  opacity: .9;
  pointer-events: none;
}

.login-visual::after {
  content: "";
  position: absolute;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: var(--blue);
  left: -120px; bottom: -100px;
  opacity: .18;
  filter: blur(20px);
  pointer-events: none;
}

.login-visual__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.07);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: .74rem;
  font-weight: 600;
  color: rgba(255,255,255,.72);
  letter-spacing: .02em;
  margin-bottom: 28px;
  width: fit-content;
  position: relative;
  z-index: 1;
}

.login-visual__badge::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.login-visual__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.2vw, 2.8rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.042em;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.login-visual__title em {
  color: var(--accent-light);
  font-style: italic;
}

.login-visual__desc {
  font-size: 1rem;
  color: rgba(255,255,255,.55);
  font-weight: 400;
  line-height: 1.72;
  position: relative;
  z-index: 1;
}

.login-chips {
  display: flex;
  gap: 10px;
  margin-top: 36px;
  position: relative;
  z-index: 1;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: .74rem;
  font-weight: 600;
  color: rgba(255,255,255,.65);
  transition: background var(--transition), border-color var(--transition);
}

.chip:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.25);
}

/* ---- Form panel (right) ---- */
.login-form-area {
  background: var(--white);
  padding: 64px 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-form__title {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -.038em;
  margin-bottom: 5px;
  color: var(--ink);
}

.login-form__subtitle {
  font-size: .86rem;
  color: var(--muted);
  margin-bottom: 36px;
}

/* ---- Form fields ---- */
.form-group { margin-bottom: 18px; }

.form-label {
  display: block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 7px;
}

.form-input {
  width: 100%;
  background: var(--paper);
  border: 1.5px solid var(--line-strong);
  color: var(--ink);
  padding: 13px 15px;
  font-size: .93rem;
  font-family: var(--font-body);
  border-radius: 12px;
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.form-input:focus {
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(232,111,42,.12);
}

.form-input::placeholder { color: var(--dim); }

.form-input:invalid:not(:placeholder-shown) {
  border-color: #e85050;
}

/* ---- Extras ---- */
.form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--accent);
  cursor: pointer;
  border-radius: 4px;
}

.form-check__label {
  font-size: .82rem;
  color: var(--muted);
}

.form-forgot {
  font-size: .78rem;
  color: var(--accent);
  font-weight: 600;
  transition: opacity var(--transition);
}

.form-forgot:hover { opacity: .75; }

/* ---- Submit ---- */
.btn-submit {
  width: 100%;
  padding: 15px;
  background: var(--black);
  border: none;
  color: var(--white);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: -.01em;
  font-family: var(--font-body);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  margin-bottom: 24px;
}

.btn-submit:hover {
  background: #252219;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(16,16,16,.15);
}

.btn-submit:active { transform: scale(0.99); }

.btn-submit:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none;
}

.btn-submit--loading {
  position: relative;
  color: transparent;
}

.btn-submit--loading::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

@keyframes spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ---- Divider ---- */
.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}

.login-divider__text {
  font-size: .72rem;
  color: var(--dim);
  font-weight: 600;
  letter-spacing: .08em;
  white-space: nowrap;
  text-transform: uppercase;
}

/* ---- Register link ---- */
.login-register {
  text-align: center;
  font-size: .82rem;
  color: var(--muted);
}

.login-register a {
  color: var(--accent);
  font-weight: 700;
  transition: opacity var(--transition);
}

.login-register a:hover { opacity: .75; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .login-container { grid-template-columns: 1fr; }
  .login-visual { padding: 44px 36px; }
  .login-visual::before { width: 180px; height: 180px; }
  .login-form-area { padding: 44px 36px; }
}

@media (max-width: 480px) {
  .login-visual { padding: 32px 24px; }
  .login-form-area { padding: 32px 24px; }
  .login-visual__title { font-size: 1.8rem; }
}