@import url(./font.css);

/* =========================================
   1. 现代 SaaS 风格高级主题变量
========================================= */
:root {
  /* 明亮模式 - 高级极简白与冷灰，去除了单调的死白 */
  --bg-base: #f4f6f8;
  --bg-surface: rgba(255, 255, 255, 0.85); /* 半透明表面，为毛玻璃效果打基础 */
  --bg-input: #ffffff;
  --bg-hover: rgba(0, 0, 0, 0.04);

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.15);

  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-placeholder: #9ca3af;

  /* 品牌色优化：更具高级感的靛蓝色 */
  --brand-primary: #4338ca;
  --brand-primary-hover: #3730a3;
  --brand-primary-alpha: rgba(67, 56, 202, 0.08);

  --status-error: #ef4444;
  --status-success: #10b981;

  /* 现代柔和长弥散阴影（Apple 风格） */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.02);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.08), 0 8px 16px rgba(0,0,0,0.04);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  
  --backdrop-blur: blur(12px);
}

html.dark {
  /* 暗黑模式 - 纯粹的深邃黑与极光蓝 */
  --bg-base: #09090b;
  --bg-surface: rgba(24, 24, 27, 0.7);
  --bg-input: rgba(255, 255, 255, 0.05);
  --bg-hover: rgba(255, 255, 255, 0.1);

  --border-subtle: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.2);

  --text-primary: #f9fafb;
  --text-secondary: #a1a1aa;
  --text-placeholder: #52525b;

  --brand-primary: #818cf8;
  --brand-primary-hover: #a5b4fc;
  --brand-primary-alpha: rgba(129, 140, 248, 0.15);

  --status-error: #f87171;

  /* 深色模式需要更强的光效阴影 */
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6), 0 8px 16px rgba(0, 0, 0, 0.4);
}

/* =========================================
   滚动条美化
========================================= */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-placeholder);
}

/* =========================================
   2. 全局重置与排版基准
========================================= */
*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  /* 优化字体渲染，让文字显得更纤细高级 */
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-base);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0.01em;
}

#app {
  min-height: 100vh;
  background: transparent;
  position: relative;
  z-index: 1;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  outline: none;
}

/* =========================================
   高级背景环境光与数据网格 (极简唯美风)
========================================= */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  /* 高级细腻的点阵网格 */
  background-image: radial-gradient(var(--border-strong) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% -10%, black 10%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% -10%, black 10%, transparent 80%);
  opacity: 0.3;
  pointer-events: none;
}

html.dark body::before {
  opacity: 0.15;
}

/* 更为克制的极光呼吸环境光 */
body::after {
  content: '';
  position: fixed;
  top: -60%;
  left: -30%;
  right: -30%;
  height: 120vh;
  z-index: -3;
  background: radial-gradient(ellipse at bottom, var(--brand-primary-alpha) 0%, transparent 50%);
  opacity: 0.5;
  pointer-events: none;
  animation: ambient-pulse 10s ease-in-out infinite alternate;
}

@keyframes ambient-pulse {
  0% {
    transform: scale(1) translateY(0);
    opacity: 0.3;
  }
  100% {
    transform: scale(1.05) translateY(-2%);
    opacity: 0.6;
  }
}

/* =========================================
   3. 现代表单控件体系 (磨砂与无边框风格)
========================================= */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}

.input-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.03em;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-field {
  width: 100%;
  padding: 14px 16px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}

.input-field::placeholder {
  color: var(--text-placeholder);
  font-weight: 400;
}

.input-field:hover {
  border-color: var(--border-strong);
}

.input-field:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 4px var(--brand-primary-alpha), inset 0 1px 2px rgba(0,0,0,0.02);
  background-color: var(--bg-surface);
}

.input-action-btn {
  position: absolute;
  right: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-primary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.input-action-btn:hover:not(:disabled) {
  background: var(--brand-primary-alpha);
}

.input-action-btn:disabled {
  color: var(--text-placeholder);
  cursor: not-allowed;
}

/* 主按钮的高级拟物渐变效果 */
.btn-primary {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-hover) 100%);
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 4px 12px var(--brand-primary-alpha);
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--brand-primary-alpha);
  filter: brightness(1.1);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 8px var(--brand-primary-alpha);
}

.btn-primary:disabled {
  background: var(--bg-input);
  color: var(--text-placeholder);
  border-color: var(--border-subtle);
  box-shadow: none;
  text-shadow: none;
  cursor: not-allowed;
}