/* Secure Landing — modern responsive styles */
:root {
  --bg: #0b1220;
  --bg-elevated: #111827;
  --bg-card: rgba(30, 41, 59, 0.72);
  --border: rgba(148, 163, 184, 0.16);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --primary: #6366f1;
  --primary-2: #8b5cf6;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 16px;
  --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.45);
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

body.landing {
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(99, 102, 241, 0.28), transparent 55%),
    radial-gradient(900px 500px at 90% 10%, rgba(139, 92, 246, 0.22), transparent 50%),
    radial-gradient(700px 400px at 50% 100%, rgba(16, 185, 129, 0.08), transparent 50%),
    var(--bg);
}

a {
  color: #a5b4fc;
  text-decoration: none;
}

a:hover {
  color: #c7d2fe;
}

img {
  max-width: 100%;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(11, 18, 32, 0.75);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
  font-size: 0.95rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  border-radius: 12px;
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, opacity 0.15s ease;
  font-family: inherit;
  text-decoration: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff !important;
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 14px 36px rgba(99, 102, 241, 0.45);
  color: #fff !important;
}

.btn-ghost {
  background: transparent;
  color: var(--text) !important;
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.04);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5 !important;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  border-radius: 10px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Hero */
.hero {
  padding: 4.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: start;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: #c7d2fe;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.hero h1 span {
  background: linear-gradient(135deg, #a5b4fc, #c4b5fd, #6ee7b7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 36rem;
  margin: 0 0 1.75rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
  display: grid;
  gap: 0.75rem;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.feature-list .icon {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 0.75rem;
  margin-top: 2px;
}

/* Cards / Form */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.form-card {
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
}

.form-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-2), #34d399);
}

.form-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.form-card .subtitle {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group.full {
  grid-column: 1 / -1;
}

label {
  font-size: 0.82rem;
  font-weight: 600;
  color: #cbd5e1;
}

label .req {
  color: #f87171;
}

input,
textarea,
select {
  width: 100%;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
  color: var(--text);
  font: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: rgba(99, 102, 241, 0.65);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
}

input::placeholder,
textarea::placeholder {
  color: #64748b;
}

textarea {
  min-height: 90px;
  resize: vertical;
}

.card-row {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.7fr;
  gap: 0.75rem;
}

.section-divider {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0.35rem 0 0.15rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.section-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.secure-note {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: #a7f3d0;
  font-size: 0.82rem;
  margin: 0.25rem 0 0.5rem;
  grid-column: 1 / -1;
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

.form-actions {
  grid-column: 1 / -1;
  margin-top: 0.5rem;
}

.alert {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  display: none;
}

.alert.show {
  display: block;
}

.alert-success {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

.alert-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.alert-info {
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #c7d2fe;
}

/* Sections */
.section {
  padding: 3.5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-title h2 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
}

.section-title p {
  margin: 0;
  color: var(--muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.step {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(17, 24, 39, 0.55);
}

.step-num {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  display: grid;
  place-items: center;
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.step h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
}

/* ========== Admin ========== */
body.admin {
  background: #0b1220;
}

.admin-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #0f172a;
  border-right: 1px solid var(--border);
  padding: 1.25rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar .logo {
  margin-bottom: 2rem;
  padding: 0.25rem;
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.side-nav a {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.92rem;
}

.side-nav a:hover,
.side-nav a.active {
  background: rgba(99, 102, 241, 0.12);
  color: #e0e7ff;
}

.admin-main {
  padding: 1.5rem 1.75rem 2.5rem;
}

.admin-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.admin-top h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.admin-top p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.stat {
  padding: 1.15rem 1.25rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(30, 41, 59, 0.5);
}

.stat .label {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat .value {
  font-size: 1.75rem;
  font-weight: 700;
  margin-top: 0.35rem;
  letter-spacing: -0.02em;
}

.panel {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(30, 41, 59, 0.45);
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
  flex-wrap: wrap;
}

.panel-header h2 {
  margin: 0;
  font-size: 1.05rem;
}

.panel-body {
  padding: 1.25rem;
}

.table-wrap {
  overflow-x: auto;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table.data th,
table.data td {
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

table.data th {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  background: rgba(15, 23, 42, 0.5);
}

table.data tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.badge-soft {
  display: inline-flex;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-ok {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
}

.badge-warn {
  background: rgba(245, 158, 11, 0.15);
  color: #fcd34d;
}

.badge-no {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
}

.mono {
  font-family: var(--mono);
  font-size: 0.85rem;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  background:
    radial-gradient(800px 400px at 20% 0%, rgba(99, 102, 241, 0.25), transparent 55%),
    radial-gradient(700px 350px at 80% 100%, rgba(139, 92, 246, 0.2), transparent 50%),
    var(--bg);
}

.auth-card {
  width: min(440px, 100%);
  padding: 2rem;
}

.auth-card h1 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
}

.auth-card .subtitle {
  color: var(--muted);
  margin: 0 0 1.5rem;
  font-size: 0.92rem;
}

.auth-card .form-group {
  margin-bottom: 1rem;
}

.auth-card .btn {
  width: 100%;
  margin-top: 0.5rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.detail-item label {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.detail-item div {
  font-size: 0.95rem;
  word-break: break-word;
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
}

/* Responsive */
@media (max-width: 960px) {
  .hero-grid,
  .steps,
  .stats {
    grid-template-columns: 1fr;
  }

  .admin-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(280px, 85vw);
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    z-index: 100;
    height: 100vh;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
  }

  .sidebar-backdrop.show {
    display: block;
  }

  .mobile-nav-toggle {
    display: inline-flex;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .form-grid,
  .card-row {
    grid-template-columns: 1fr;
  }

  .nav-links .hide-sm {
    display: none;
  }

  .hero {
    padding-top: 2.5rem;
  }
}

/* Spinner */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}

.btn.loading .spinner {
  display: inline-block;
}

.btn.loading .btn-text {
  opacity: 0.85;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}