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

/* ===== body ===== */
body {
  font-family: sans-serif;
  background-color: var(--white);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  color: var(--textBase);
}

/* ===== container ===== */
.login-container {
  background: var(--bodyObjectBase);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 500px;
  padding: 60px 60px;
  border: 1px solid var(--border);
  min-height: 520px;
}

/* ===== header ===== */
.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-header h1 {
  font-size: 24px;
  color: var(--textBase);
  margin-bottom: 6px;
}

.login-header p {
  font-size: 13px;
  color: var(--muted);
}

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

label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--textBase);
}

input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  font-size: 14px;
  background-color: var(--white);
  color: var(--textBase);
}

input:focus {
  outline: none;
  border-color: var(--accent-strong);
  background-color: #fff;
}

/* ===== button ===== */
.login-btn {
  width: 100%;
  height: 44px;
  margin-top: 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background-color: var(--footerBtn);
  color: var(--textBase);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,.08);
  transition: transform .1s ease, box-shadow .2s ease, background-color .2s;
}

.login-btn:hover {
  background-color: var(--accent-strong);
  box-shadow: 0 6px 12px rgba(0,0,0,.15);
  transform: translateY(-2px);
}

.login-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(0,0,0,.08);
}

/* ===== error ===== */
.error-message {
  margin-bottom: 16px;
  padding: 10px 12px;
  font-size: 13px;
  border-radius: var(--radius-md);
  background-color: #f6d6d6;
  color: #7a2f2f;
  display: none;
}

.error-message.show {
  display: block;
}

/* ===== loading ===== */
.loading {
  display: none;
  text-align: center;
  margin-top: 20px;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 4px solid rgba(0,0,0,.15);
  border-top-color: rgba(0,0,0,.6);
  border-radius: 50%;
  animation: spin .9s linear infinite;
  margin: 0 auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}