/* Google Font - Poppins */
@import url("https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap");
/* Variables */
:root {
  --header-height: 3rem;
  --font-semi: 600;
}

/* Colors */

:root {
  --first-color: #4070f4;
  --second-color: #0e2431;
  --gardient-color: linear-gradient(45deg, #5001fb, #4070f4);
}

/* FONT STYLE */
:root {
  --body-font: "Poppins", sans-serif;
  --big-font-size: 2rem;
  --h2-font-size: 1.5rem;
  --nomral-font-size: 0.938rem;
}

/* Media Screen Min-Width : 768px */
@media screen and (min-width: 768px) {
  :root {
    --big-font-size: 3.5rem;
    --h2-font-size: 2rem;
    --nomral-font-size: 1rem;
  }
}

/* Margins */
:root {
  --mb-1: 0.5rem;
  --mb-2: 1rem;
  --mb-3: 1.5rem;
  --mb-4: 2rem;
  --mb-5: 2.5rem;
  --mb-6: 3rem;
}

/* Z-index */
:root {
  --z-back: -10;
  --z-normal: 1;
  --z-tooltip: 10;
  --z-fixed: 100;
}

.browser-header {
  width: 100%;
  position: fixed;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #f2f2f2;
  border-bottom: 1px solid #ccc;
  padding: 6px 10px;
  height: 36px;
  box-sizing: border-box;
  z-index: var(--z-fixed);
}

.page-title {
  flex: 1;
  text-align: center;
  font-weight: bold;
  color: #333;
}

.window-controls {
  display: flex;
  gap: 6px;
}

.window-controls button {
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  font-size: 12px;
  color: #fff;
}

.maximize {
  background-color: #4caf50;
}

.close {
  background-color: #f44336;
}

.maximize:hover {
  background-color: #45a049;
}

.close:hover {
  background-color: #e53935;
}

/* Base */

html {
  scroll-behavior: smooth;
}

body {
  margin: var(--header-height) 0 0 0;
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  color: var(--second-color);
  background-color: #fff;
}

h1,
h2,
p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  text-decoration: none;
}

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

.subheading {
  font-weight: 700;
  color: #fff;
  font-size: 13px;
  display: inline-block;
  letter-spacing: 1px;
  margin-bottom: 5px;
  position: relative;
  z-index: 0;
  display: inline-block;
  background: var(--first-color);
  border-radius: 4px;
  padding: 9px 14px;
}

.subheading:after {
  position: absolute;
  bottom: -5px;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
  content: "";
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 5px 0 5px;
  border-color: var(--first-color) transparent transparent transparent;
}

/* BUTTONS */
.button {
  display: inline-block;
  color: #fff;
  padding: 0.75rem 2.5rem;
  font-weight: var(--font-semi);
  border-radius: 0.5rem;
  background: var(--gardient-color);
}

.button:hover {
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.15);
}

.section {
  /*padding-top: 3rem;*/
  padding-bottom: 2rem;
}

.section-title {
  position: relative;
  font-size: var(--h2-font-size);
  color: var(--first-color);
  margin-top: var(--mb-2);
  margin-bottom: var(--mb-4);
  text-align: center;
}

.section-title::after {
  position: absolute;
  content: "";
  width: 64px;
  height: 0.18rem;
  left: 0;
  right: 0;
  margin: auto;
  top: 3rem;
  background-color: var(--first-color);
}

.link {
  color: var(--first-color);
}

.link:hover {
  border-bottom: #4070f4 2px solid;
}

.images {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-evenly;
}