/* =======================
   MODERN RESPONSIVE THEME
   ======================= */

:root {
  --primary: #7c6ee6;
  --primary-dark: #5b4ad2;
  --primary-light: #a79bff;
  --secondary: #5f83ff;
  --accent: #22d3ee;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --light-bg: #f3f4ff;
  --card-bg: #ffffff;
  --text-dark: #1e293b;
  --text-muted: #64748b;
  --border: #e7e3ff;
  --app-bg: radial-gradient(circle at 10% 10%, rgba(124, 110, 230, 0.2), transparent 45%),
    radial-gradient(circle at 80% 20%, rgba(96, 165, 250, 0.2), transparent 35%),
    radial-gradient(circle at 20% 80%, rgba(14, 165, 233, 0.18), transparent 40%),
    linear-gradient(180deg, #0f172a 0%, #1e1b4b 35%, #eef2ff 100%);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--app-bg);
  min-height: 100vh;
  color: var(--text-dark);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

/* Hide login form while we validate existing session */
body.auth-checking #loginForm,
body.auth-checking #loginMessage {
  display: none !important;
}

body.auth-checking #authLoading {
  display: block !important;
}

/* MODERN NAVBAR */
.navbar {
  background: rgba(15, 23, 42, 0.6) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.35) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem 1.5rem !important;
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  border-radius: 0 !important;
  margin: 0 !important;
}

.nav-left {
  display: flex !important;
  align-items: center !important;
  gap: 0.75rem !important;
}

.nav-left img {
  height: 45px !important;
  width: auto !important;
}

.navbar .nav-logo {
  height: 45px !important;
  width: auto !important;
  margin-right: 0 !important;
}

.nav-left strong {
  font-size: 1.5rem !important;
  color: #ffffff !important;
  font-weight: 700 !important;
  letter-spacing: 0.5px !important;
}

.tagline {
  font-size: 0.65rem !important;
  margin-top: -2px !important;
  opacity: 1 !important;
  color: #cbd5f5 !important;
  letter-spacing: 0.5px !important;
  font-weight: 500 !important;
}

.nav-right {
  display: flex !important;
  align-items: center !important;
  gap: 0.75rem !important;
}

.nav-right span,
.nav-right .nav-user {
  color: #e2e8f0 !important;
}

/* LOGOUT & NAV BUTTONS */
.navbar .logout-btn,
.navbar .back-btn {
  padding: 0.5rem 1.25rem !important;
  font-size: 0.875rem !important;
  background: rgba(255, 255, 255, 0.12) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  color: #ffffff !important;
  border-radius: 0.5rem !important;
  cursor: pointer !important;
  transition: all 0.2s !important;
  font-weight: 500 !important;
  text-decoration: none !important;
  display: inline-block !important;
  margin-top: 0 !important;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.25) !important;
}

.navbar .logout-btn:hover,
.navbar .back-btn:hover {
  background: rgba(255, 255, 255, 0.2) !important;
  color: #ffffff !important;
  transform: translateY(-1px);
}

/* CARD CONTAINER */
.container {
  background: var(--card-bg);
  width: 90%;
  max-width: 420px;
  margin: 2.5rem auto;
  padding: 2rem;
  border-radius: 1rem;
  color: var(--text-dark);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border);
}

/* FORMS */
label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.875rem;
}

input,
textarea,
select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  margin-top: 0.25rem;
  font-size: 0.9375rem;
  transition: all 0.2s;
  background: white;
  color: var(--text-dark);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

button,
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  border: none;
  background: var(--primary);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.75rem;
  transition: all 0.2s;
  display: inline-block;
  text-decoration: none;
  text-align: center;
}

button:hover,
.btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

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

/* RESPONSIVE */
@media (max-width: 768px) {
  .navbar {
    padding: 0.75rem 1rem !important;
  }

  .nav-left strong {
    font-size: 1.25rem !important;
  }

  .tagline {
    font-size: 0.6rem !important;
  }

  .nav-left img,
  .navbar .nav-logo {
    height: 38px !important;
  }

  .container {
    margin: 1.5rem auto;
    padding: 1.5rem;
  }
}