/* 1. Font loading */

@font-face {
  font-family: "Roboto";
  src: url("./assets/fonts/Roboto-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Roboto";
  src: url("./assets/fonts/Roboto-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* 2. Tokens */

:root {
  /* Raw colors */
  --color-red: hsl(4, 100%, 67%);
  --color-blue-800: hsl(234, 29%, 20%);
  --color-blue-700: hsl(235, 18%, 26%);
  --color-grey: hsl(0, 0%, 58%);
  --color-white: hsl(0, 0%, 100%);

  /* Semantic colors */
  --color-primary: var(--color-red);
  --color-text-main: var(--color-blue-800);
  --color-text-muted: var(--color-blue-700);
  --color-border: var(--color-grey);
  --color-surface: var(--color-white);
  --color-page-bg: var(--color-blue-700);

  /* Typography */
  --font-family-base: "Roboto", sans-serif;
  --font-weight-regular: 400;
  --font-weight-bold: 700;
  --font-size-base: 1rem;

  /* Layout references */
  --layout-mobile-reference: 23.4375rem;
  /* 375px */
  --layout-desktop-reference: 90rem;
  /* 1440px */
}

/* 3. Base elements */

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-main);
  background-color: var(--color-page-bg);
}

/* 4. Page layout */

.page {
  min-height: 100svh;
  background-color: var(--color-page-bg);
}

/* 5. Sign-up card */

.sign-up-card {
  width: 100%;
  min-height: 100svh;
  margin: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--color-surface);
}

.sign-up-visual {
  order: -1;
  margin: 0;
  padding: 0;
}

.sign-up-visual,
.sign-up-picture,
.sign-up-image {
  width: 100%;
}

.sign-up-image {
  display: block;
  height: auto;
}

.sign-up-content {
  padding: 2.5rem 1.5rem;
}

.sign-up-title {
  font-size: 2.5rem;
  line-height: 1;
  font-weight: var(--font-weight-bold);
}

.sign-up-description {
  margin-top: 1.2rem;
  margin-bottom: 1.5rem;
  font-size: var(--font-size-base);
  line-height: 1.5;
}

/* 6. Benefit list */

.benefit-list {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.benefit-icon {
  flex-shrink: 0;
}

.benefit-text {
  font-size: var(--font-size-base);
  line-height: 1.5;
}

/* 7. Form */

.sign-up-form {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
}

.field-group {
  width: 100%;
  display: grid;
  gap: 0.5rem;
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.email-label,
.error-message {
  font-size: 0.8rem;
  font-weight: var(--font-weight-bold);
}

.error-message {
  color: var(--color-primary);
}

.email-input {
  width: 100%;
  min-height: 3.5rem;
  padding-inline: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  color: var(--color-text-main);
  background-color: var(--color-surface);
}

.email-input::placeholder {
  color: var(--color-grey);
}

.sign-up-submit {
  width: 100%;
  min-height: 3.5rem;
  padding-inline: 1rem;
  border: 0;
  border-radius: 0.5rem;
  color: var(--color-white);
  background-color: var(--color-blue-800);
  font-weight: var(--font-weight-bold);
}

/* 8. Success card */

.success-card {
  width: 100%;
  min-height: 100svh;
  padding: 9rem 1.5rem 2.5rem;
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
}

.success-icon {
  width: 4rem;
  margin-bottom: 2.5rem;
}

.success-title {
  margin-bottom: 1.5rem;
  font-size: 2.5rem;
  line-height: 1;
  font-weight: var(--font-weight-bold);
}

.success-message {
  line-height: 1.5;
}

.success-email {
  font-weight: var(--font-weight-bold);
}

.dismiss-button {
  width: 100%;
  min-height: 3.5rem;
  margin-top: auto;
  border: 0;
  border-radius: 0.5rem;
  color: var(--color-white);
  background-color: var(--color-blue-800);
  font-weight: var(--font-weight-bold);
}

/* 9. States */

[hidden] {
  display: none !important;
}

.email-input.is-invalid,
.email-input[aria-invalid="true"] {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: hsla(4, 100%, 67%, 0.12);
}

/* 12. Interactive states */

.sign-up-submit:hover,
.dismiss-button:hover {
  background: linear-gradient(90deg, hsl(4, 100%, 67%), hsl(15, 100%, 61%));
  box-shadow: 0 1rem 2rem hsla(4, 100%, 67%, 0.35);
}

.sign-up-submit:focus-visible,
.dismiss-button:focus-visible,
.email-input:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

.email-input:hover {
  border-color: var(--color-blue-800);
}

.email-input:focus {
  outline: none;
  border-color: var(--color-blue-800);
}

/* 10. Attribution */

.attribution {
  display: none;
  font-size: 0.6875rem;
  text-align: center;
}

.attribution a {
  color: hsl(228, 45%, 44%);
}

/* 11. Media queries */

/* Tablet: centered single-column layout */
@media (min-width: 48rem) {
  .page {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
  }

  .sign-up-card {
    max-width: 38rem;
    min-height: auto;
    border-radius: 2rem;
  }

  .success-card {
    max-width: 31rem;
    min-height: auto;
    padding: 3rem;
    border-radius: 2rem;
  }

  .dismiss-button {
    margin-top: 2.5rem;
  }
}

/* Desktop: two-column layout */
@media (min-width: 64rem) {
  .sign-up-card {
    max-width: 58rem;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
  }

  .sign-up-visual {
    order: 0;
    height: 100%;
  }

  .sign-up-picture,
  .sign-up-image {
    height: 100%;
  }

  .sign-up-image {
    object-fit: cover;
    border-radius: 1rem;
  }

  .sign-up-content {
    padding: 3rem;
  }

  .sign-up-title {
    font-size: 3.5rem;
  }
}