:root {
  --bg: #0b0c10;
  --card-bg: rgba(18, 20, 29, 0.75);
  --card-border: rgba(255, 255, 255, 0.08);
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.35);
  --text: #f3f4f6;
  --text-muted: #9ca3af;
  --input-bg: rgba(12, 14, 20, 0.7);
  --input-border: rgba(255, 255, 255, 0.12);
  --success: #10b981;
  --error: #ef4444;
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  position: relative;
}

/* Background gradient glow spots */
body::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, rgba(11, 12, 16, 0) 70%);
  top: -10%;
  left: -10%;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.12) 0%, rgba(11, 12, 16, 0) 70%);
  bottom: -10%;
  right: -10%;
  pointer-events: none;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: 460px;
  padding: 24px;
  z-index: 1;
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 40px 32px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.header {
  text-align: center;
  margin-bottom: 32px;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
  border-radius: 18px;
  margin-bottom: 18px;
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

.logo-icon svg {
  width: 34px;
  height: 34px;
  fill: #ffffff;
}

h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 14px;
}

.form-step {
  display: none;
}

.form-step.active {
  display: block;
  animation: fadeIn 0.4s ease-out;
}

.form-group {
  margin-bottom: 22px;
}

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.input-wrapper {
  position: relative;
}

.input-wrapper svg {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: color 0.3s;
}

input[type="text"],
input[type="password"],
select {
  width: 100%;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 14px;
  padding: 14px 16px 14px 48px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: all 0.3s ease;
  appearance: none;
}

select {
  padding-left: 48px;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
}

input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background-color: rgba(18, 20, 29, 0.9);
}

input:focus + svg, select:focus + svg {
  color: var(--accent);
}

.btn {
  width: 100%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  border: none;
  border-radius: 14px;
  color: #ffffff;
  padding: 15px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

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

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.alert {
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13.5px;
  margin-bottom: 20px;
  display: none;
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

.otp-box-container {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 20px 0;
}

.otp-digit {
  width: 48px;
  height: 56px;
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  border-radius: 12px;
  border: 1px solid var(--input-border);
  background-color: var(--input-bg);
  color: var(--text);
  outline: none;
  transition: all 0.2s;
}

.otp-digit:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.timer {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 14px;
}

.timer span {
  color: var(--accent);
  font-weight: 600;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}