*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --dark-sage: #8BA49A;
  --light-sage: #A7C4B5;
  --terracotta: #AD856E;
  --navy: #1a2332;
  --white: #ffffff;
  --off-white: #f8f7f5;
  --text-light: rgba(255, 255, 255, 0.85);
  --text-muted: rgba(255, 255, 255, 0.55);

  --font-primary: 'Poppins', sans-serif;
  --font-display: 'Sinhala MN', 'Noto Serif', Georgia, serif;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-weight: 400;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  background: var(--dark-sage);
  color: var(--white);
}

/* ── Full-screen layout ── */

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 4rem 2rem 2rem;
}

/* ── Logo ── */

.logo {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 1s ease-out 0.2s forwards;
  margin-bottom: 3rem;
}

.logo img {
  width: 180px;
  height: auto;
  display: block;
}

/* ── Divider ── */

.divider {
  width: 48px;
  height: 1px;
  background: rgba(255, 255, 255, 0.3);
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: scaleX(0);
  animation: lineExpand 0.8s ease-out 0.7s forwards;
}

/* ── Typography ── */

.heading {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  letter-spacing: 0.02em;
  color: var(--white);
  margin-bottom: 1.5rem;
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s ease-out 0.5s forwards;
}

.subtext {
  font-family: var(--font-primary);
  font-weight: 300;
  font-size: clamp(0.9rem, 1.8vw, 1.05rem);
  color: var(--text-light);
  letter-spacing: 0.01em;
  line-height: 1.9;
  text-align: center;
  max-width: 480px;
  margin-bottom: 0;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s ease-out 0.8s forwards;
}

/* ── Footer ── */

.footer {
  text-align: center;
  padding: 2.5rem 0 0;
  margin-top: auto;
  opacity: 0;
  animation: fadeUp 1s ease-out 1.1s forwards;
}

.footer__tagline {
  font-family: var(--font-primary);
  font-weight: 400;
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.footer__text {
  font-family: var(--font-primary);
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

/* ── Dev access toggle ── */

.dev-toggle {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 50;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  opacity: 0.25;
  transition: opacity 0.3s ease;
}

.dev-toggle:hover {
  opacity: 0.6;
}

.dev-toggle svg {
  width: 18px;
  height: 18px;
  stroke: var(--white);
}

/* ── Dev panel ── */

.dev-panel {
  position: fixed;
  top: 3.5rem;
  right: 1.25rem;
  z-index: 50;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.dev-panel--open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.dev-panel__inner {
  background: var(--navy);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 1.25rem;
  min-width: 200px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.dev-panel__label {
  font-family: var(--font-primary);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 0.75rem;
}

.dev-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-primary);
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  outline: none;
  margin-bottom: 0.6rem;
  transition: border-color 0.2s ease;
}

.dev-input:focus {
  border-color: var(--dark-sage);
}

.dev-input--error {
  border-color: var(--terracotta);
  animation: shake 0.4s ease;
}

.dev-btn {
  width: 100%;
  padding: 0.45rem;
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--white);
  background: var(--dark-sage);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.dev-btn:hover {
  background: var(--light-sage);
}

.dev-link {
  display: block;
  padding: 0.5rem 0;
  font-family: var(--font-primary);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color 0.2s ease;
}

.dev-link:last-child {
  border-bottom: none;
}

.dev-link:hover {
  color: var(--light-sage);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

/* ── Animations ── */

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes lineExpand {
  to {
    opacity: 1;
    transform: scaleX(1);
  }
}

/* ── Responsive ── */

@media (max-width: 480px) {
  .page {
    padding: 3rem 1.5rem 2rem;
  }

  .logo img {
    width: 140px;
  }

  .logo {
    margin-bottom: 2rem;
  }

  .heading {
    font-size: 1.8rem;
  }

  .subtext {
    font-size: 0.85rem;
  }
}