:root {
  --bg-body: #050816;
  --bg-elevated: #0f172a;
  --bg-elevated-soft: #020617;
  --accent: #6366f1;
  --accent-soft: rgba(99, 102, 241, 0.12);
  --accent-strong: #4f46e5;
  --accent-danger: #ef4444;
  --border-subtle: rgba(148, 163, 184, 0.35);
  --text-main: #e5e7eb;
  --text-muted: #9ca3af;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.8);
  --transition-fast: 0.15s ease-out;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-main);
  background:
    radial-gradient(circle at 0% 0%, rgba(34, 211, 238, 0.16), transparent 55%),
    radial-gradient(circle at 100% 0%, rgba(244, 114, 182, 0.16), transparent 55%),
    radial-gradient(circle at 50% 100%, rgba(129, 140, 248, 0.16), transparent 55%),
    var(--bg-body);
  color: var(--text-main);
  overflow-x: hidden;
}

/* Layout */

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(24px);
  background: linear-gradient(
    to right,
    rgba(15, 23, 42, 0.92),
    rgba(15, 23, 42, 0.86)
  );
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.app-header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.brand-logo {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: conic-gradient(from 160deg, #22d3ee, #6366f1, #f97316, #22d3ee);
  padding: 2px;
}

.brand-logo-inner {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: radial-gradient(circle at 10% 0%, #0f172a, #020617);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: #e5e7eb;
}

.brand-text-main {
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #e5e7eb;
}

.brand-text-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.app-header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.app-nav {
  display: flex;
  gap: 0.4rem;
}

.app-nav a {
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--text-muted);
  border: 1px solid transparent;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.app-nav a:hover {
  background: rgba(148, 163, 184, 0.12);
  color: #e5e7eb;
}

.app-nav a.nav-active {
  background: var(--accent-soft);
  color: #e5e7eb;
  border-color: rgba(129, 140, 248, 0.6);
}

/* Main content */

/*
  Make the main content span the full viewport width,
  then use left/right padding to create a centred 75vw lane.
*/
.app-main {
  flex: 1;
  width: 100vw;
  max-width: 100vw;
  margin: 1.25rem 0 2rem;
  padding: 0 calc((100vw - 75vw) / 2) 2rem; /* equal left/right padding */
}

/* Optional inner wrapper if you want it */
.work-area {
  width: 100%;
  margin: 0 auto 2rem;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.page-title-block h1 {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #e5e7eb;
}

.page-title-block p {
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.page-header-actions {
  display: flex;
  gap: 0.5rem;
}

/* Cards & panels */

.card {
  background: radial-gradient(circle at 0% 0%, rgba(59, 130, 246, 0.18), transparent 55%),
              radial-gradient(circle at 100% 0%, rgba(45, 212, 191, 0.12), transparent 55%),
              var(--bg-elevated);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  padding: 1.25rem 1.4rem;
}

.card-soft {
  background: linear-gradient(145deg, rgba(15,23,42,0.96), rgba(15,23,42,0.98));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(31, 41, 55, 0.95);
  padding: 1.05rem 1.2rem;
}

.card h2 {
  margin-top: 0;
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.card-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Buttons */

.btn {
  border-radius: 999px;
  padding: 0.5rem 0.95rem;
  border: 1px solid transparent;
  font-size: 0.85rem;
  cursor: pointer;
  background: transparent;
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: rgba(191, 219, 254, 0.3);
  box-shadow: 0 10px 30px rgba(79, 70, 229, 0.5);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 35px rgba(79, 70, 229, 0.7);
}

.btn-secondary {
  border-color: rgba(148, 163, 184, 0.5);
  background: rgba(15,23,42,0.9);
}

.btn-secondary:hover {
  background: rgba(30,64,175,0.45);
}

.btn-ghost {
  border-color: transparent;
}

.btn-danger {
  background: linear-gradient(135deg, #f97373, var(--accent-danger));
  border-color: rgba(254, 226, 226, 0.35);
}

.btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
}

/* Tables */

.table-wrapper {
  margin-top: 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(31, 41, 55, 0.95);
  overflow: hidden;
  background: linear-gradient(145deg, var(--bg-elevated-soft), var(--bg-elevated));
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.table thead {
  background: rgba(15, 23, 42, 0.95);
}

.table th,
.table td {
  padding: 0.65rem 0.8rem;
  text-align: left;
  border-bottom: 1px solid rgba(31, 41, 55, 0.85);
}

.table th {
  font-weight: 500;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.7rem;
}

.table tbody tr:hover {
  background: rgba(15, 23, 42, 0.75);
}

.table td small {
  color: var(--text-muted);
}

/* Forms */

.form-grid {
  display: grid;
  gap: 0.9rem;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.form-row label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: #9ca3af;
}

input[type="text"],
input[type="password"],
select,
textarea {
  font-family: inherit;
  font-size: 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(51, 65, 85, 0.9);
  background: rgba(15, 23, 42, 0.9);
  color: var(--text-main);
  padding: 0.55rem 0.85rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

textarea {
  border-radius: 16px;
  min-height: 180px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(129, 140, 248, 0.85);
  box-shadow: 0 0 0 1px rgba(129, 140, 248, 0.5);
  background: #020617;
}

.form-help {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Messages */

.alert {
  padding: 0.6rem 0.75rem;
  border-radius: 999px;
  font-size: 0.82rem;
  margin-bottom: 0.9rem;
}

.alert-error {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.6);
  color: #fecaca;
}

.alert-success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.6);
  color: #bbf7d0;
}

/* Login screen */

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background:
    radial-gradient(circle at 0% 0%, rgba(59, 130, 246, 0.24), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(236, 72, 153, 0.2), transparent 55%),
    var(--bg-elevated);
  border-radius: 28px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  padding: 1.8rem 1.9rem 1.7rem;
}

.login-card-header {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1.25rem;
}

.login-card-title {
  font-size: 1.25rem;
  margin: 0 0 0.1rem;
}

.login-card-subtitle {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.login-footer {
  margin-top: 0.95rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* Utility */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: rgba(15, 23, 42, 0.8);
  color: #e5e7eb;
}

.tag-muted {
  font-size: 0.76rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(30, 64, 175, 0.75);
  color: #9ca3af;
}

/* Responsive */

@media (max-width: 1024px) {
  .app-main {
    width: 100vw;
    max-width: 100vw;
    margin: 1.25rem 0 2rem;
    padding: 0 1rem 2rem; /* simpler padding on smaller screens */
  }
}

@media (max-width: 720px) {
  .app-header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .app-nav {
    flex-wrap: wrap;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .login-card {
    padding: 1.4rem 1.3rem 1.3rem;
  }
}