@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&display=swap');

:root {
  --primary: #2563EB;
  --dark: #1e293b;
  --light: #f8fafc;
  --accent: #FBBF24;
  --muted: #64748b;
  --surface: #ffffff;
  --border: rgba(30, 41, 59, 0.12);
  --shadow: 0 20px 45px rgba(37, 99, 235, 0.12);
  --radius: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Nunito', system-ui, sans-serif;
  color: var(--dark);
  background:
    radial-gradient(circle at top left, rgba(251, 191, 36, 0.16), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, var(--light) 55%, #eef4ff 100%);
  min-height: 100vh;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(100% - 2rem, 1200px);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(248, 250, 252, 0.9);
  border-bottom: 1px solid rgba(37, 99, 235, 0.08);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: var(--light);
  background: linear-gradient(135deg, var(--primary), #1d4ed8);
  box-shadow: 0 12px 26px rgba(37, 99, 235, 0.25);
}

.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.3rem;
  width: 48px;
  height: 48px;
  padding: 0.8rem;
  border-radius: 14px;
  cursor: pointer;
  background: var(--surface);
  border: 1px solid var(--border);
}

.nav-toggle-label span {
  width: 100%;
  height: 3px;
  border-radius: 999px;
  background: var(--dark);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.site-nav {
  display: none;
  width: 100%;
  padding: 0 0 1rem;
}

.site-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-nav a {
  display: block;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  font-weight: 700;
  color: var(--dark);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
}

.nav-toggle:checked ~ .site-nav {
  display: block;
}

.nav-toggle:checked + .nav-toggle-label span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle:checked + .nav-toggle-label span:nth-child(2) {
  opacity: 0;
}

.nav-toggle:checked + .nav-toggle-label span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.section {
  padding: 4rem 0;
}

.hero {
  padding: 5rem 0 4rem;
}

.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: rgba(251, 191, 36, 0.2);
  color: #92400e;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

h1,
h2,
h3 {
  margin: 0 0 1rem;
  line-height: 1.08;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 4.7rem);
}

h2 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.button,
button,
input[type='submit'] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 0;
  border-radius: 999px;
  padding: 0.95rem 1.4rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button-primary,
button,
input[type='submit'] {
  color: var(--light);
  background: linear-gradient(135deg, var(--primary), #1d4ed8);
  box-shadow: 0 12px 26px rgba(37, 99, 235, 0.24);
}

.button-secondary {
  color: var(--dark);
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(30, 41, 59, 0.12);
}

.button:hover,
button:hover,
input[type='submit']:hover {
  transform: translateY(-2px);
}

.card {
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 50px rgba(30, 41, 59, 0.16);
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.gallery-grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 18px;
  cursor: zoom-in;
  box-shadow: 0 12px 28px rgba(30, 41, 59, 0.14);
  transition: transform 0.2s ease, filter 0.2s ease;
}

.gallery-grid img:hover {
  transform: translateY(-4px);
  filter: saturate(1.05);
}

.form-card,
.login-card {
  max-width: 420px;
  width: min(100%, 420px);
  margin: 0 auto;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}

.form-group {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

label {
  font-weight: 700;
  color: var(--dark);
}

input[type='text'],
input[type='email'],
input[type='password'],
textarea,
select {
  width: 100%;
  border: 1px solid rgba(30, 41, 59, 0.16);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  background: rgba(255, 255, 255, 0.92);
  color: var(--dark);
}

input:focus,
textarea:focus,
select:focus {
  outline: 3px solid rgba(37, 99, 235, 0.18);
  border-color: var(--primary);
}

.lightbox {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(15, 23, 42, 0.82);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.lightbox img {
  max-width: min(92vw, 1100px);
  max-height: 88vh;
  border-radius: 24px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.35);
}

.lightbox.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
}

@media (min-width: 768px) {
  .nav-toggle-label {
    display: none;
  }

  .topbar {
    min-height: 84px;
  }

  .site-nav {
    display: block;
    width: auto;
    padding: 0;
  }

  .site-nav ul {
    flex-direction: row;
    align-items: center;
    gap: 0.35rem;
  }

  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .grid.cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}