/* ===== Local Font: Orbitron ===== */
@font-face {
  font-family: 'Orbitron';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/orbitron-regular.ttf') format('truetype');
}

@font-face {
  font-family: 'Orbitron';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/orbitron-bold.ttf') format('truetype');
}

@font-face {
  font-family: 'Orbitron';
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url('../fonts/orbitron-black.ttf') format('truetype');
}

/* ===== Global Reset & Base ===== */
* {
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, sans-serif;
}

body {
  background-color: #050510;
  color: #e0e0e0;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* ===== Dynamic Background ===== */
.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 20% 50%, #1a1a3a 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, #1a1035 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, #0a1a2a 0%, transparent 50%),
    #050510;
  z-index: -1;
}

.background-animation::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: transparent url('data:image/svg+xml;utf8,%3Csvg width="40" height="40" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M0 0h40v40H0z" fill="none"/%3E%3Cpath d="M0 40L40 0H20L0 20M40 40V20L20 40" stroke="%23303050" stroke-width="1" stroke-opacity="0.3"/%3E%3C/svg%3E') repeat;
  animation: bgRotate 60s linear infinite;
  opacity: 0.15;
}

.background-animation::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(0, 242, 255, 0.5), transparent),
    radial-gradient(2px 2px at 40% 70%, rgba(120, 100, 255, 0.4), transparent),
    radial-gradient(3px 3px at 60% 20%, rgba(0, 200, 255, 0.3), transparent),
    radial-gradient(2px 2px at 80% 50%, rgba(180, 100, 255, 0.4), transparent),
    radial-gradient(2px 2px at 10% 80%, rgba(0, 242, 255, 0.3), transparent),
    radial-gradient(3px 3px at 90% 80%, rgba(100, 150, 255, 0.3), transparent),
    radial-gradient(2px 2px at 50% 50%, rgba(0, 200, 255, 0.4), transparent),
    radial-gradient(2px 2px at 70% 90%, rgba(150, 100, 255, 0.3), transparent);
  background-size: 200% 200%;
  animation: particleFloat 20s ease-in-out infinite alternate;
}

@keyframes particleFloat {
  0% {
    background-position: 0% 0%;
    opacity: 0.6;
  }

  50% {
    opacity: 1;
  }

  100% {
    background-position: 100% 100%;
    opacity: 0.6;
  }
}

@keyframes bgRotate {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes shimmer {
  0% {
    background-position: 100% 50%;
  }

  50% {
    background-position: 0% 50%;
  }

  100% {
    background-position: 100% 50%;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.97);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ===== Layout ===== */
.main-container {
  padding: 20px;
  position: relative;
  z-index: 1;
}

/* ===== Card (Glassmorphism Dark) ===== */
.card {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  color: #e0e0e0;
  animation: fadeInUp 0.7s ease-out forwards;
}

/* ===== Card Header ===== */
.card-header {
  background: linear-gradient(135deg, rgba(0, 242, 255, 0.08) 0%, rgba(123, 104, 238, 0.08) 100%);
  color: white;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06) !important;
  border-radius: 20px 20px 0 0 !important;
  text-align: center;
  padding: 24px 20px;
  position: relative;
}

.card-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 10%;
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 242, 255, 0.4), rgba(123, 104, 238, 0.4), transparent);
}

/* ===== Logo ===== */
.logo {
  font-family: 'Orbitron', "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 28px;
  font-weight: 900;
  margin-bottom: 10px;
  background: linear-gradient(90deg, #00f2ff, #7b68ee, #ff6ec7, #00f2ff);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 6s ease-in-out infinite;
  filter: drop-shadow(0 0 12px rgba(0, 242, 255, 0.25));
}

.card-header>div:last-child {
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 4px;
  text-transform: uppercase;
  font-size: 0.85rem;
  font-weight: 300;
}

/* ===== Card Body ===== */
.card-body {
  padding: 24px;
}

/* ===== Form Controls ===== */
.form-control {
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 16px;
  transition: all 0.35s ease;
  background: rgba(255, 255, 255, 0.04);
  color: #ffffff;
}

.form-control::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.form-control:focus {
  border-color: rgba(0, 242, 255, 0.5);
  box-shadow: 0 0 0 0.2rem rgba(0, 242, 255, 0.12), 0 0 20px rgba(0, 242, 255, 0.08);
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
}

.form-text {
  color: rgba(255, 255, 255, 0.35) !important;
  font-size: 0.8rem;
}

/* ===== Form Labels ===== */
.form-label {
  color: rgba(255, 255, 255, 0.7);
}

.form-label i {
  color: #00f2ff;
}

/* ===== Global Button Text ===== */
.btn-primary,
.btn-success,
.btn-warning,
.btn-danger,
.btn-info,
.btn-secondary {
  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.btn-primary:hover,
.btn-success:hover,
.btn-warning:hover,
.btn-danger:hover,
.btn-info:hover,
.btn-secondary:hover {
  color: #ffffff;
}

/* ===== Primary Button ===== */
.btn-primary {
  background: linear-gradient(135deg, rgba(0, 242, 255, 0.7) 0%, rgba(123, 104, 238, 0.7) 100%);
  border: 1px solid rgba(0, 242, 255, 0.3);
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.35s ease;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 242, 255, 0.25), 0 0 30px rgba(123, 104, 238, 0.15);
  background: linear-gradient(135deg, rgba(0, 242, 255, 0.85) 0%, rgba(123, 104, 238, 0.85) 100%);
  border-color: rgba(0, 242, 255, 0.5);
}

/* ===== Outline Primary Button ===== */
.btn-outline-primary {
  border: 1px solid rgba(0, 242, 255, 0.3);
  color: #00f2ff;
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.35s ease;
  background: transparent;
}

.btn-outline-primary:hover {
  background: rgba(0, 242, 255, 0.1);
  border-color: rgba(0, 242, 255, 0.6);
  color: #00f2ff;
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(0, 242, 255, 0.12);
}

/* ===== Button States ===== */
.btn:active {
  transform: scale(0.97) !important;
  transition-duration: 0.1s !important;
}

.btn:disabled {
  opacity: 0.5;
}

/* ===== Loading ===== */
.loading {
  display: none;
}

.loading.show {
  display: inline-block;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: #050510;
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 242, 255, 0.2);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 242, 255, 0.4);
}

/* ===== Selection ===== */
::selection {
  background: rgba(0, 242, 255, 0.3);
  color: #fff;
}