:root {
  --accent: #0ff1ce;
  --btn-bg: linear-gradient(90deg, #0ff1ce 0%, #0069ff 100%);
  --card-bg: rgba(255,255,255,0.13);
  --border: rgba(255,255,255,0.28);
  --glass-blur: 18px;
  --shadow: 0 6px 32px 0 rgba(61, 143, 255, 0.15);
  --text-main: #f3fbff;
  --text-label: #b2cdfa;
  --input-bg: rgba(255,255,255,0.16);
  --input-focus: #0ff1ce;
  --status-success: #0ff1ce;
  --status-fail: #ff5d8f;
  --font: 'Inter', 'Segoe UI', 'Roboto', Arial, sans-serif;
}
body {
  font-family: var(--font);
  background: linear-gradient(120deg, #090f22 0%, #0a2238 100%);
  margin: 0;
  min-height: 100vh;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}
main {
  background: var(--card-bg);
  box-shadow: var(--shadow);
  border-radius: 24px;
  border: 1.5px solid var(--border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  width: 100%;
  max-width: 410px;
  padding: 2.2rem 2rem 2rem 2rem;
  margin: 1rem;
  color: var(--text-main);
  animation: enter 0.6s cubic-bezier(.7,.36,0,1.17);
}
@keyframes enter {
  from { opacity: 0; transform: translateY(40px) scale(0.97);}
  to   { opacity: 1; transform: none;}
}
h1 {
  text-align: center;
  font-weight: 900;
  font-size: 2rem;
  margin: 0 0 2.1rem 0;
  background: var(--btn-bg);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.08em;
  text-shadow: 0 2px 16px #0ff1ce33;
}
form {
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}
.form-group {
  position: relative;
  margin-bottom: 8px;
}
label {
  position: absolute;
  top: 14px;
  left: 18px;
  color: var(--text-label);
  pointer-events: none;
  font-size: 1.01rem;
  font-weight: 600;
  background: transparent;
  transition: 0.16s ease;
  z-index: 2;
  letter-spacing: 0.01em;
}
input[type="email"],
input[type="text"],
textarea {
  font-family: inherit;
  background: var(--input-bg);
  color: var(--text-main);
  border: none;
  border-radius: 11px;
  padding: 1.25rem 1.13rem 0.5rem 1.13rem;
  font-size: 1.06rem;
  width: 100%;
  outline: none;
  border-bottom: 2px solid transparent;
  transition: border 0.2s, background 0.2s;
  margin-bottom: 0;
}
input:focus, textarea:focus {
  border-bottom: 2px solid var(--input-focus);
  background: rgba(255,255,255,0.19);
}
input:focus + label,
input:not(:placeholder-shown) + label,
textarea:focus + label,
textarea:not(:placeholder-shown) + label {
  top: 4px;
  left: 14px;
  font-size: 0.83rem;
  opacity: 0.85;
}
textarea {
  min-height: 110px;
  resize: vertical;
  padding-top: 1.4rem;
}
input[type="file"] {
  background: none;
  border: none;
  color: var(--text-label);
  padding: 0;
  font-size: 0.99rem;
  margin-top: 0.13rem;
}
input[type="file"]::-webkit-file-upload-button {
  background: var(--btn-bg);
  color: #fff;
  border: none;
  border-radius: 7px;
  padding: 0.3em 1em;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  margin-right: 0.7em;
  transition: background 0.23s;
  box-shadow: 0 2px 10px #0ff1ce15;
}
input[type="file"]:hover::-webkit-file-upload-button {
  background: linear-gradient(90deg, #0ff1ce 30%, #0051cc 100%);
}
button {
  background: var(--btn-bg);
  color: #fff;
  font-weight: 900;
  font-size: 1.15rem;
  border: none;
  border-radius: 14px;
  padding: 0.8rem 0;
  cursor: pointer;
  box-shadow: 0 4px 18px #0ff1ce11;
  margin-top: 1.4rem;
  letter-spacing: 0.06em;
  transition: background 0.21s, transform 0.14s;
  outline: none;
  position: relative;
  overflow: hidden;
}
button:disabled {
  cursor: not-allowed;
  opacity: 0.57;
  filter: grayscale(0.6);
  background: linear-gradient(90deg, #b2cdfa 0%, #7eaaff 100%);
}
button:not(:disabled):active {
  transform: scale(0.97);
}
button::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 0; height: 0;
  background: rgba(15,241,206,0.23);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.4s cubic-bezier(.33,1.3,.67,1), height 0.4s cubic-bezier(.33,1.3,.67,1);
  z-index: 0;
  pointer-events: none;
}
button:active::after {
  width: 260px;
  height: 260px;
  transition: 0s;
}
.status {
  margin-top: 1.4rem;
  color: var(--text-main);
  background: rgba(19, 33, 52, 0.38);
  border-left: 4px solid var(--accent);
  border-radius: 10px;
  padding: 1rem 1rem 1rem 1.3rem;
  font-family: 'JetBrains Mono', 'Menlo', 'monospace', monospace;
  font-size: 0.95rem;
  min-height: 28px;
  transition: border-color 0.17s, color 0.17s;
  white-space: pre-wrap;
}
.status.success {
  border-left-color: var(--status-success);
  color: var(--status-success);
  background: rgba(0,255,204,0.07);
}
.status.error {
  border-left-color: var(--status-fail);
  color: var(--status-fail);
  background: rgba(255,70,133,0.07);
}
footer {
  margin-top: 2rem;
  text-align: center;
}
footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.05em;
  font-size: 1rem;
  transition: color 0.18s;
}
footer a:hover {
  color: #fff;
  text-shadow: 0 0 8px var(--accent);
}