* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: #172033;
  background: #fff;
}

.container {
  width: min(1120px, 92%);
  margin: auto;
}


/* HEADER */

.header {
  height: 76px;
  border-bottom: 1px solid #edf0f5;
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 21px;
  font-weight: 800;
  color: #172033;
  text-decoration: none;
}

.logo span {
  color: #5b5bf7;
  margin-right: 7px;
}

.nav nav {
  display: flex;
  gap: 34px;
}

.nav nav a {
  color: #697386;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.nav nav a:hover {
  color: #5b5bf7;
}

.menu-btn {
  display: none;
  border: 0;
  background: none;
  font-size: 24px;
}


/* HERO */

.hero {
  padding: 86px 0 75px;
  background:
    radial-gradient(
      circle at 80% 30%,
      #eef0ff 0,
      transparent 30%
    ),
    linear-gradient(
      180deg,
      #fafbff,
      #fff
    );
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 70px;
  align-items: center;
}

.badge {
  display: inline-block;
  background: #eeeeff;
  color: #5656d9;
  border-radius: 20px;
  padding: 8px 13px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: 54px;
  line-height: 1.08;
  letter-spacing: -2px;
  margin: 0 0 20px;
}

.hero h1 span {
  color: #5b5bf7;
}

.hero-text {
  color: #687386;
  line-height: 1.7;
  max-width: 570px;
  font-size: 16px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin: 30px 0;
}

.btn {
  display: inline-block;
  padding: 13px 20px;
  border-radius: 9px;
  text-decoration: none;
  font-weight: 700;
  font-size: 13px;
}

.primary {
  background: #5b5bf7;
  color: #fff;
}

.secondary {
  border: 1px solid #e2e5ec;
  color: #4c5668;
  background: #fff;
}


/* HERO CARD */

.hero-card {
  background: #fff;
  border: 1px solid #e9ebf2;
  border-radius: 18px;
  box-shadow: 0 25px 70px #27304a14;
  overflow: hidden;
  transform: rotate(1deg);
}

.window-top {
  height: 39px;
  background: #f7f8fb;
  border-bottom: 1px solid #eceef3;
  display: flex;
  align-items: center;
  gap: 6px;
  padding-left: 15px;
}

.window-top i {
  width: 7px;
  height: 7px;
  background: #d6d9e1;
  border-radius: 50%;
}

.dashboard {
  padding: 30px;
}

.muted {
  color: #8b93a2;
  font-size: 12px;
  margin: 0 0 6px;
}

.dashboard h3 {
  font-size: 21px;
  margin: 0 0 22px;
}

.mini-card {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 14px;
  border: 1px solid #edf0f5;
  border-radius: 11px;
  margin: 10px 0;
}

.mini-card > span {
  font-size: 20px;
  background: #fff;
  padding: 8px;
  border-radius: 9px;
}

.mini-card div {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.mini-card b {
  font-size: 13px;
}

.mini-card small {
  font-size: 10px;
  color: #8b93a2;
}


/* SECTIONS */

.section {
  padding: 85px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 35px;
}

.eyebrow {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 2px;
  color: #7378a8;
}

.section h2 {
  font-size: 32px;
  letter-spacing: -1px;
  margin: 7px 0 0;
}

.section-head > p {
  color: #8a92a0;
  font-size: 13px;
}


/* SUBJECTS */

.subjects {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.subject {
  position: relative;
  text-align: left;
  padding: 24px;
  border: 1px solid #e9ebf1;
  background: #fff;
  border-radius: 13px;
  cursor: pointer;
  transition: .2s;
  display: block;
  text-decoration: none;
  color: inherit;
}

.subject:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 35px #27304a10;
  border-color: #d9dafe;
}

.icon {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  width: 44px;
  height: 44px;
  font-size: 20px;
  margin-bottom: 18px;
}

.subject b {
  display: block;
  font-size: 14px;
}

.subject small {
  display: block;
  color: #8b93a2;
  font-size: 10px;
  margin-top: 7px;
}

.subject strong {
  position: absolute;
  right: 20px;
  bottom: 22px;
  color: #8c94a3;
}


/* RESOURCES */

.resources {
  background: #f9fafc;
}

.filters {
  display: flex;
  gap: 7px;
}

.filter {
  border: 1px solid #e2e5ec;
  background: #fff;
  border-radius: 20px;
  padding: 8px 13px;
  color: #737b8b;
  font-size: 11px;
  cursor: pointer;
}

.filter.active {
  background: #5b5bf7;
  color: #fff;
  border-color: #5b5bf7;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}


/* RESOURCE CARD */

.resource {
  background: #fff;
  border: 1px solid #e9ebf1;
  border-radius: 13px;
  padding: 21px;
}

.resource-class {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 18px;
}

.tag {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .8px;
}

.blue-tag {
  color: #5559e8;
}

.orange-tag {
  color: #ea580c;
}

.green-tag {
  color: #32a26b;
}

.red-tag {
  color: rgb(241, 73, 73);
}

.resource h3 {
  font-size: 15px;
  line-height: 1.4;
  margin: 10px 0 8px;
}

.resource p {
  font-size: 11px;
  color: #8b93a2;
  line-height: 1.6;
  min-height: 36px;
}

.download {
  display: block;
  margin-top: 17px;
  color: #5659e8;
  text-decoration: none;
  font-size: 11px;
  font-weight: 700;
  background-color: transparent !important;
}


/* COLORS */

.blue {
  background: #eef0ff;
  color: #5559e8;
}

.orange {
  background: #ffedd5;
  color: #ea580c;
}

.green {
  background: #eafaf2;
  color: #32a26b;
}

.red {
  background: #fee2e2;
  color: #ef4444
}


/* FOOTER */

.footer-inner {
  height: 75px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #8a92a0;
  font-size: 11px;
}

.footer-inner b {
  color: #172033;
  font-size: 15px;
}
/* CODE WINDOW */

.code-window {
  background: #15171c;
  border: 1px solid #272a32;
  overflow: hidden;
  transform: rotate(1deg);
  box-shadow: 0 25px 70px #27304a22;
}


/* MACOS WINDOW BAR */

.code-window .window-top {
  height: 42px;
  background: #202229;
  border-bottom: 1px solid #30333b;
  position: relative;
  padding-left: 16px;
}

.code-window .window-top i {
  width: 10px;
  height: 10px;
}

.code-window .window-top i:nth-child(1) {
  background: #ff5f57;
}

.code-window .window-top i:nth-child(2) {
  background: #febc2e;
}

.code-window .window-top i:nth-child(3) {
  background: #28c840;
}

.window-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  color: #9da2ad;
  font-size: 11px;
  font-weight: 500;
}


/* EDITOR */

.code-editor {
  min-height: 355px;
  display: flex;
  position: relative;
  overflow: hidden;
}

.code-content {
  padding: 23px 0 25px;
  width: 100%;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 11px;
  line-height: 1.9;
}

.code-line {
  display: flex;
  min-height: 21px;
}

.line-number {
  width: 42px;
  flex-shrink: 0;
  text-align: right;
  padding-right: 14px;
  color: #555b67;
  user-select: none;
}

.code {
  color: #d7d9df;
  white-space: nowrap;
}


/* CODE COLORS */

.keyword {
  color: #82d8a7;
}

.header {
  color: #6ed6ff;
}

.function {
  color: #6ed6ff;
}

.string {
  color: #e5c07b;
}

.special{
  color: #eeee
}

.number {
  color: rgb(238, 115, 217);
}


/* CURSOR */

.cursor-line {
  display: flex;
  min-height: 21px;
}

.cursor {
  display: inline-block;
  width: 6px;
  height: 15px;
  background: #8f96ff;
  animation: blink 1s infinite;
}

@keyframes blink {

  0%,
  45% {
    opacity: 1;
  }

  46%,
  100% {
    opacity: 0;
  }

}


/* PREVIEW */

.code-preview {
  position: absolute;
  right: 20px;
  bottom: 20px;
  width: 155px;
  height: 125px;
  background: #202229;
  border: 1px solid #363a44;
  border-radius: 9px;
  box-shadow: 0 15px 30px #0006;
  overflow: hidden;
}

.preview-window {
  height: 100%;
}

.preview-header {
  height: 22px;
  display: flex;
  align-items: center;
  gap: 4px;
  padding-left: 8px;
  background: #292c34;
}

.preview-header span {
  font-size: 6px;
  color: #666c78;
}

.preview-content {
  height: calc(100% - 22px);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  gap: 5px;
  padding: 10px;
}

.preview-icon {
  width: 35px;
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  background: #30345d;
  color: #8589ff;
  font-family: monospace;
  font-size: 14px;
  font-weight: 700;
}

.preview-content strong {
  color: #e7e9ef;
  font-size: 8px;
  line-height: 1.3;
}

.preview-content small {
  color: #777d8a;
  font-size: 7px;
}

/* RESPONSIVE */

@media (max-width: 800px) {

  .nav nav {
    display: none;
  }

  .menu-btn {
    display: block;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 43px;
  }

  .subjects,
  .resource-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-head {
    align-items: start;
    gap: 20px;
    flex-direction: column;
  }

}

@media (max-width: 520px) {

  .subjects,
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 55px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero h1 {
    font-size: 37px;
  }

  .footer-inner {
    height: auto;
    padding: 25px 0;
    gap: 15px;
    flex-direction: column;
    align-items: start;
  }

}