* {
  box-sizing: border-box;
}

:root {
  --green: #1f8a5b;
  --green-dark: #0f5138;
  --blue: #135d8c;
  --bg: #eef7f1;
  --text: #13251c;
  --muted: #65746d;
  --card: rgba(255,255,255,0.82);
  --stroke: rgba(31, 138, 91, 0.18);
  --shadow: 0 30px 80px rgba(15, 81, 56, 0.18);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31,138,91,0.20), transparent 32%),
    radial-gradient(circle at bottom right, rgba(19,93,140,0.18), transparent 30%),
    linear-gradient(135deg, #f9fffb 0%, #eef7f1 48%, #eaf4f8 100%);
  overflow-x: hidden;
}

.background-orb {
  position: fixed;
  border-radius: 999px;
  filter: blur(6px);
  opacity: .45;
  pointer-events: none;
}

.orb-1 {
  width: 220px;
  height: 220px;
  background: rgba(31,138,91,.22);
  top: 10%;
  left: -80px;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: rgba(19,93,140,.16);
  right: -100px;
  top: 20%;
}

.orb-3 {
  width: 180px;
  height: 180px;
  background: rgba(255,255,255,.9);
  bottom: 7%;
  left: 25%;
}

.screen {
  display: none;
  min-height: 100vh;
  padding: 28px;
}

.screen.active {
  display: block;
}

.topbar,
.presentation-nav,
.footer {
  max-width: 1180px;
  margin: 0 auto;
}

.topbar,
.presentation-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  gap: 13px;
  align-items: center;
}

.logo-mark {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-weight: 900;
  letter-spacing: -1px;
  color: white;
  background: linear-gradient(135deg, var(--green), var(--blue));
  box-shadow: 0 10px 30px rgba(31,138,91,.28);
}

.brand strong {
  display: block;
  font-size: 18px;
}

.brand span {
  color: var(--muted);
  font-size: 13px;
}

.compact .logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 13px;
}

.badge {
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.62);
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--green-dark);
  font-weight: 700;
  font-size: 13px;
}

.hero {
  max-width: 1180px;
  margin: 70px auto 34px;
  display: grid;
  grid-template-columns: 1.28fr .72fr;
  gap: 34px;
  align-items: center;
}

.hero-content,
.hero-card,
.slide,
.modal-content {
  backdrop-filter: blur(22px);
  background: var(--card);
  border: 1px solid rgba(255,255,255,.74);
  box-shadow: var(--shadow);
}

.hero-content {
  padding: 52px;
  border-radius: 36px;
}

.eyebrow {
  text-transform: uppercase;
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .13em;
  color: var(--green);
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(42px, 7vw, 82px);
  line-height: .92;
  letter-spacing: -4px;
  margin: 0;
  max-width: 840px;
}

h2 {
  font-size: clamp(32px, 4vw, 58px);
  line-height: 1;
  letter-spacing: -2px;
  margin: 0 0 20px;
}

.subtitle {
  color: var(--muted);
  font-size: 20px;
  line-height: 1.6;
  max-width: 760px;
  margin: 24px 0 34px;
}

.button-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn,
.small-btn {
  border: 0;
  cursor: pointer;
  font-weight: 800;
  transition: .2s ease;
}

.btn {
  padding: 16px 22px;
  border-radius: 17px;
  font-size: 16px;
}

.btn:hover,
.small-btn:hover {
  transform: translateY(-2px);
}

.primary {
  background: linear-gradient(135deg, var(--green), var(--blue));
  color: white;
  box-shadow: 0 15px 35px rgba(31,138,91,.25);
}

.secondary {
  background: #fff;
  color: var(--green-dark);
  border: 1px solid var(--stroke);
}

.full {
  width: 100%;
  margin-top: 14px;
}

.mini-info {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.mini-info div,
.feature-grid div,
.dashboard div,
.data-table div,
.admin-panel label {
  background: rgba(255,255,255,.74);
  border: 1px solid var(--stroke);
  border-radius: 20px;
  padding: 18px;
}

.mini-info strong,
.feature-grid b {
  display: block;
  margin-bottom: 6px;
}

.mini-info span,
.feature-grid span {
  color: var(--muted);
  font-size: 14px;
}

.hero-card {
  padding: 28px;
  border-radius: 30px;
}

.card-header {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 28px;
}

.status-dot {
  width: 12px;
  height: 12px;
  background: #1fc86a;
  border-radius: 50%;
  box-shadow: 0 0 0 7px rgba(31,200,106,.12);
}

.metric {
  display: flex;
  justify-content: space-between;
  align-items: end;
}

.metric strong {
  font-size: 54px;
  letter-spacing: -2px;
}

.bar {
  margin: 12px 0 24px;
  height: 12px;
  background: rgba(31,138,91,.10);
  border-radius: 99px;
  overflow: hidden;
}

.bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--blue));
  border-radius: inherit;
}

.grid-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.grid-metrics div {
  background: rgba(255,255,255,.76);
  border: 1px solid var(--stroke);
  border-radius: 17px;
  padding: 14px;
}

.grid-metrics small,
.dashboard small {
  display: block;
  color: var(--muted);
  margin-bottom: 5px;
}

.grid-metrics b {
  font-size: 20px;
}

.sms-preview {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 13px;
  padding-bottom: 18px;
}

.presentation-nav {
  padding: 16px 0 28px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.small-btn {
  min-width: 42px;
  padding: 11px 14px;
  border-radius: 13px;
  color: white;
  background: var(--green-dark);
}

.small-btn.ghost {
  background: rgba(255,255,255,.72);
  color: var(--green-dark);
  border: 1px solid var(--stroke);
}

.slides {
  max-width: 1100px;
  margin: 24px auto;
}

.slide {
  display: none;
  min-height: 620px;
  border-radius: 36px;
  padding: 56px;
}

.slide.active {
  display: block;
  animation: fadeIn .28s ease;
}

.slide p {
  font-size: 19px;
  line-height: 1.72;
  color: var(--muted);
}

.feature-grid,
.dashboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 34px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
}

.check-list li {
  font-size: 19px;
  margin-bottom: 16px;
  background: rgba(255,255,255,.75);
  border: 1px solid var(--stroke);
  padding: 18px 20px;
  border-radius: 18px;
}

.check-list li::before {
  content: "✓";
  display: inline-block;
  margin-right: 10px;
  color: var(--green);
  font-weight: 900;
}

.data-table {
  display: grid;
  gap: 13px;
  margin-top: 28px;
}

.data-table div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
}

.data-table span {
  color: var(--muted);
}

.architecture {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin: 34px 0;
}

.architecture div {
  flex: 1;
  min-width: 180px;
  text-align: center;
  background: white;
  border: 1px solid var(--stroke);
  border-radius: 22px;
  padding: 24px;
  font-weight: 900;
}

.architecture small {
  color: var(--muted);
  font-weight: 500;
}

.architecture span {
  font-size: 26px;
  font-weight: 900;
  color: var(--green);
}

.sms-box {
  margin-top: 28px;
  padding: 22px;
  border-radius: 18px;
  background: #13251c;
  color: #d7ffe7;
  font-family: Consolas, Monaco, monospace;
  line-height: 1.6;
}

.dashboard div {
  min-height: 130px;
}

.dashboard b {
  display: block;
  font-size: 34px;
  letter-spacing: -1px;
}

.dashboard span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

.trend.up {
  color: var(--green);
  font-weight: 900;
}

.admin-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.admin-panel label {
  display: grid;
  gap: 8px;
  font-weight: 800;
}

.admin-panel input,
.modal-content input {
  width: 100%;
  border: 1px solid var(--stroke);
  border-radius: 13px;
  padding: 14px;
  font-size: 15px;
}

.credits {
  margin-top: 34px;
  background: white;
  border: 1px solid var(--stroke);
  border-radius: 24px;
  padding: 24px;
}

.credits b,
.credits span {
  display: block;
  margin-bottom: 8px;
}

.credits span {
  color: var(--muted);
}

.admin-only.hidden-admin {
  display: none !important;
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8, 25, 17, .55);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.active {
  display: flex;
}

.modal-content {
  width: min(460px, 100%);
  border-radius: 28px;
  padding: 34px;
  position: relative;
}

.close {
  position: absolute;
  right: 18px;
  top: 14px;
  border: 0;
  background: transparent;
  font-size: 28px;
  cursor: pointer;
}

.hint {
  color: var(--muted);
}

.error {
  color: #b00020;
  font-weight: 800;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 850px) {
  .screen {
    padding: 18px;
  }

  .hero,
  .feature-grid,
  .dashboard,
  .mini-info,
  .admin-panel {
    grid-template-columns: 1fr;
  }

  .hero-content,
  .slide {
    padding: 30px;
    border-radius: 28px;
  }

  h1 {
    letter-spacing: -2px;
  }

  .footer,
  .topbar,
  .presentation-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .data-table div {
    grid-template-columns: 1fr;
  }
}