/* ==========================================================
   KTV LOGIN OPERATOR - STYLES
   ========================================================== */

:root {
  --bg: #090a10;
  --card: #131726;
  --cyan: #00f2fe;
  --blue: #4facfe;
  --pink: #ff007f;
  --red: #ff3366;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.1);
  --border-focus: rgba(0, 242, 254, 0.5);
}

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

body {
  background: radial-gradient(circle at 50% 15%, #1e1b4b 0%, var(--bg) 80%);
  color: var(--text);
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-container {
  width: 100%;
  max-width: 480px;
}

.login-card {
  background: var(--card);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: 24px;
  padding: 36px 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9), 0 0 30px rgba(0, 242, 254, 0.15);
  text-align: center;
  backdrop-filter: blur(16px);
  animation: popIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes popIn {
  0% { transform: scale(0.94); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.brand-badge {
  display: inline-block;
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid rgba(0, 242, 254, 0.35);
  color: var(--cyan);
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

h1 {
  font-size: 28px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.subtitle {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 24px;
}

.alert-error {
  background: rgba(255, 51, 102, 0.15);
  border: 1px solid var(--red);
  color: #ff85a2;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  text-align: left;
}

.form-group {
  text-align: left;
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  outline: none;
  transition: all 0.2s ease;
}

.form-input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.25);
  background: rgba(0, 0, 0, 0.6);
}

.new-room-box {
  background: rgba(0, 242, 254, 0.06);
  border: 1px dashed rgba(0, 242, 254, 0.4);
  padding: 16px;
  border-radius: 14px;
  margin-bottom: 18px;
  text-align: left;
}

.btn-login {
  width: 100%;
  background: linear-gradient(135deg, var(--cyan), var(--blue) 60%, var(--pink));
  color: #000;
  border: none;
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 10px;
  box-shadow: 0 8px 25px rgba(0, 242, 254, 0.3);
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 242, 254, 0.5);
}

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

.login-copyright {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12px;
  color: #64748b;
  letter-spacing: 0.3px;
}