/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

/* =========================
   WELCOME / LOGIN PAGE
========================= */
.welcome-body {
  min-height: 100vh;
  background: linear-gradient(135deg, #4f46e5, #06b6d4, #22c55e);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.welcome-container {
  display: flex;
  width: 90%;
  max-width: 1100px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(18px);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0,0,0,0.3);
}

/* LEFT HERO */
.welcome-left {
  flex: 1;
  padding: 70px 60px;
  position: relative;
}

.welcome-left h1 {
  font-size: 3.2rem;
  font-weight: 900;
}

.welcome-left h2 {
  margin: 15px 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.welcome-left p {
  max-width: 420px;
  line-height: 1.7;
  font-size: 1.05rem;
}

.glow-circle {
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, #fff, transparent 60%);
  opacity: 0.2;
}

/* LOGIN CARD */
.login-card {
  width: 380px;
  background: white;
  color: #0f172a;
  padding: 45px 35px;
}

.login-card h3 {
  font-size: 1.6rem;
  margin-bottom: 5px;
}

.subtext {
  color: #64748b;
  margin-bottom: 25px;
}

.login-card input {
  width: 100%;
  padding: 13px;
  margin-bottom: 15px;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
}

.login-btn {
  width: 100%;
  padding: 13px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: white;
  font-size: 1rem;
  cursor: pointer;
  transition: 0.3s;
}

.login-btn:hover {
  transform: scale(1.05);
}

.demo-cred {
  margin-top: 18px;
  font-size: 0.85rem;
  text-align: center;
}

.error-msg {
  color: #ef4444;
  text-align: center;
  margin-top: 10px;
}

/* =========================
   APP / HOME PAGE
========================= */
.app-body {
  min-height: 100vh;
  background: linear-gradient(135deg, #f8fafc, #e0f2fe);
  color: #0f172a;
}

/* HEADER */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 30px;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.08);
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: #2563eb;
}

.logout-btn {
  background: #ef4444;
  color: #fff;
  border: none;
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
}

/* HERO */
.hero {
  text-align: center;
  padding: 90px 20px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 900;
  color: #2563eb;
  margin-bottom: 15px;
}

.hero p {
  max-width: 650px;
  margin: 0 auto 50px;
  color: #475569;
  font-size: 1.1rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 25px;
  max-width: 900px;
  margin: auto;
}

.feature-card {
  background: white;
  padding: 25px;
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.08);
  font-weight: 600;
  transition: 0.3s;
}

.feature-card:hover {
  transform: translateY(-10px);
}

/* VOICE BUTTON */
.voice-button {
  position: fixed;
  bottom: 30px;
  left: 30px;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #22c55e, #06b6d4);
  color: white;
  font-size: 1.8rem;
  cursor: pointer;
  box-shadow: 0 20px 40px rgba(6,182,212,0.5);
}

/* MOBILE */
@media (max-width: 900px) {
  .welcome-container {
    flex-direction: column;
  }

  .welcome-left {
    text-align: center;
  }

  .login-card {
    width: 100%;
  }
}