/* Web 4 Learn — página de construção */
:root {
  /* Cores originais do projeto */
  --background: #030303;
  --background-button: #212121;
  --background-gradient: linear-gradient(130deg, rgba(30,30,30,.40), rgba(75, 74, 74, 0.6));
  --gradient: linear-gradient(130deg, rgba(30,30,30,.70), rgba(50, 50, 50, 0.80));
  --text: #ececec;
  --gray: #cfcfcf;
  --cyan: #3fd0a2;
  --blue: #3498db;
  --green: #1ec061;
  --darkgreen: #174228;
  --red: #f03d29;
  --yellow: #f1b41a;
  --purple: #9b59ff;
  --white: #ffffff;
  --border: rgba(192,192,192,.20);
  --shadow: 0 20px 60px rgba(0,0,0,.45);
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  min-height: 100dvh;
  padding: 24px;
  display: grid;
  place-items: center;
  overflow-x: hidden;
  background: var(--background);
  color: var(--text);
  font-family: 'SN Pro', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.construction {
  width: 100%;
  min-height: calc(100vh - 48px);
  min-height: calc(100dvh - 48px);
  display: grid;
  place-items: center;
}

.construction-card {
  width: min(760px, 100%);
  padding: clamp(28px, 6vw, 64px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.logo {
  display: block;
  width: min(520px, 88vw);
  max-width: 100%;
  height: auto;
  object-fit: contain;
  margin: 0 auto clamp(28px, 5vw, 46px);
}

h1 {
  margin: 0 0 clamp(26px, 5vw, 40px);
  color: var(--white);
  font-size: clamp(1.15rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: .04em;
}

.developer-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  width: min(100%, 360px);
  padding: 14px 22px;
  border: 1px solid var(--blue);
  border-radius: 12px;
  background: var(--blue);
  color: var(--white);
  text-decoration: none;
  font-size: clamp(.75rem, 2vw, .9rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .02em;
  transition: transform .2s ease, background-color .2s ease, box-shadow .2s ease;
}

.developer-button:hover {
  transform: translateY(-2px);
  background: #2980b9;
  box-shadow: 0 8px 20px rgba(52, 152, 219, .25);
}

.developer-button:focus-visible {
  outline: 3px solid rgba(63, 208, 162, .65);
  outline-offset: 4px;
}

@media (max-width: 600px) {
  body {
    padding: 16px;
  }

  .construction {
    min-height: calc(100vh - 32px);
    min-height: calc(100dvh - 32px);
  }

  .construction-card {
    padding: 32px 20px;
    border-radius: 18px;
  }

  .logo {
    width: min(420px, 90vw);
    margin-bottom: 28px;
  }

  h1 {
    font-size: 1.05rem;
  }

  .developer-button {
    min-height: 50px;
  }
}