/* 管理后台登录页 - HIMADRAMA 分屏风格 */

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

:root {
  --login-bg: #0a0e17;
  --login-bg-soft: #0f1623;
  --login-text: #ffffff;
  --login-text-muted: rgba(255, 255, 255, 0.55);
  --login-border: rgba(255, 255, 255, 0.1);
  --login-input-bg: rgba(255, 255, 255, 0.04);
  --login-input-border: rgba(255, 255, 255, 0.12);
  --login-primary: #40c9ff;
  --login-primary-hover: #1fb7ef;
  --login-radius: 14px;
  --login-transition: 0.25s ease;
}

html,
body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--login-bg);
  color: var(--login-text);
  overflow: hidden;
}

.login-wrapper {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* 左侧：登录表单 */
.login-left {
  flex: 0 0 40%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 64px 80px;
  background: var(--login-bg);
  position: relative;
  z-index: 1;
}

.login-back {
  position: absolute;
  top: 28px;
  left: 80px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--login-text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: color var(--login-transition);
}

.login-back:hover {
  color: var(--login-text);
}

.login-back svg {
  width: 14px;
  height: 14px;
}

.login-brand {
  margin-bottom: 64px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.login-brand img {
  height: 36px;
  display: block;
}

.login-brand span {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--login-text);
}

.login-header {
  margin-bottom: 40px;
}

.login-header h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #ffffff 0%, var(--login-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.login-header p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--login-text-muted);
  max-width: 420px;
}

.login-form {
  width: 100%;
  max-width: 420px;
}

.login-field {
  margin-bottom: 18px;
  position: relative;
}

.login-field label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--login-text-muted);
  font-weight: 500;
}

.login-input-wrap {
  position: relative;
}

.login-input-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--login-text-muted);
  pointer-events: none;
  transition: color var(--login-transition);
}

.login-field input {
  width: 100%;
  padding: 14px 16px 14px 48px;
  background: var(--login-input-bg);
  border: 1px solid var(--login-input-border);
  border-radius: 12px;
  color: var(--login-text);
  font-size: 15px;
  outline: none;
  transition: border-color var(--login-transition), background var(--login-transition), box-shadow var(--login-transition);
}

.login-field input::placeholder {
  color: rgba(255, 255, 255, 0.25);
}

.login-field input:focus {
  border-color: var(--login-primary);
  background: rgba(64, 201, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(64, 201, 255, 0.1);
}

.login-input-wrap:has(input:focus) .login-input-icon {
  color: var(--login-primary);
}

.login-field input:focus ~ .login-input-icon {
  color: var(--login-primary);
}

.login-toggle-pwd {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--login-text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--login-transition);
}

.login-toggle-pwd:hover {
  color: var(--login-text);
}

.login-toggle-pwd svg {
  width: 18px;
  height: 18px;
}

.login-error {
  min-height: 22px;
  color: #ff6b6b;
  font-size: 13px;
  margin: -6px 0 14px;
  text-align: left;
}

.login-error.success {
  color: #52c41a;
}

.login-btn {
  width: 100%;
  padding: 15px 24px;
  background: linear-gradient(135deg, var(--login-primary) 0%, #1fb7ef 100%);
  color: #0a0e17;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform var(--login-transition), box-shadow var(--login-transition), filter var(--login-transition);
}

.login-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(64, 201, 255, 0.28);
  filter: brightness(1.08);
}

.login-btn:active {
  transform: translateY(0);
}

.login-btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--login-transition);
}

.login-btn:hover svg {
  transform: translateX(3px);
}

.login-footer {
  margin-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
}

.login-forgot {
  color: var(--login-text-muted);
  text-decoration: none;
  transition: color var(--login-transition);
}

.login-forgot:hover {
  color: var(--login-primary);
}

/* 右侧：视觉展示 */
.login-right {
  flex: 0 0 60%;
  position: relative;
  background: #05070a;
  overflow: hidden;
}

.login-right-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(64, 201, 255, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(24, 95, 165, 0.18) 0%, transparent 50%),
    radial-gradient(circle at 60% 20%, rgba(64, 201, 255, 0.08) 0%, transparent 40%),
    linear-gradient(135deg, #0a1628 0%, #080c14 50%, #0d1a2d 100%);
  z-index: 0;
}

/* 科技感网格背景 */
.login-right-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(64, 201, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64, 201, 255, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, rgba(0,0,0,0.25) 70%, rgba(0,0,0,0) 100%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, rgba(0,0,0,0.25) 70%, rgba(0,0,0,0) 100%);
  z-index: 1;
}

.login-right-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
  z-index: 2;
}

.login-right-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 7, 10, 0.92) 0%, rgba(5, 7, 10, 0.45) 50%, rgba(5, 7, 10, 0.2) 100%);
  z-index: 3;
}

.login-right-content {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 64px 80px;
}

.login-right-label {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--login-primary);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.login-right-label::before {
  content: "// ";
  opacity: 0.7;
}

.login-right h2 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  max-width: 420px;
}

.login-right h2 .accent {
  color: var(--login-primary);
}

.login-right-desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--login-text-muted);
  max-width: 460px;
  margin-bottom: 48px;
}

.login-stats {
  display: flex;
  gap: 48px;
}

.login-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.login-stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--login-text);
  line-height: 1;
}

.login-stat-label {
  font-size: 13px;
  color: var(--login-text-muted);
}

/* 装饰粒子 */
.login-particles {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.login-particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--login-primary);
  border-radius: 50%;
  opacity: 0.35;
  animation: float 8s ease-in-out infinite;
}

.login-particle:nth-child(1) { left: 15%; top: 20%; animation-delay: 0s; }
.login-particle:nth-child(2) { left: 35%; top: 60%; animation-delay: 1.5s; }
.login-particle:nth-child(3) { left: 55%; top: 30%; animation-delay: 3s; }
.login-particle:nth-child(4) { left: 75%; top: 75%; animation-delay: 4.5s; }
.login-particle:nth-child(5) { left: 85%; top: 40%; animation-delay: 2s; }
.login-particle:nth-child(6) { left: 25%; top: 85%; animation-delay: 5.5s; }

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.35; }
  50% { transform: translateY(-20px) scale(1.2); opacity: 0.65; }
}

/* 响应式 */
@media (max-width: 1100px) {
  .login-left {
    padding: 48px 48px;
  }
  .login-right-content {
    padding: 48px 48px;
  }
  .login-header h1 {
    font-size: 36px;
  }
  .login-right h2 {
    font-size: 30px;
  }
}

@media (max-width: 900px) {
  .login-wrapper {
    flex-direction: column;
  }
  .login-left {
    flex: 1 1 auto;
    padding: 96px 32px 48px;
    min-height: 100vh;
  }
  .login-right {
    display: none;
  }
  .login-back {
    left: 32px;
  }
  .login-brand {
    margin-bottom: 40px;
  }
}

@media (max-width: 480px) {
  .login-left {
    padding: 80px 20px 40px;
  }
  .login-header h1 {
    font-size: 28px;
  }
  .login-header p {
    font-size: 14px;
  }
  .login-back {
    left: 20px;
  }
}