/* general rules */
* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
ul {
  list-style: none;
}
body {
  font-family: "kumbh sans", sans-serif;
}
.container {
  padding-left: 15px;
  padding-right: 15px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .container {
    width: 750px;
  }
}

@media (min-width: 992px) {
  .container {
    width: 970px;
  }
}

@media (min-width: 1200px) {
  .container {
    width: 1170px;
  }
}

/*  css variable*/
:root {
  --main-transition: 0.3s;
  --Dark-Blue: hsl(209, 23%, 22%);
  --Very-Dark-Blue: hsl(207, 26%, 17%);
  --Very-Dark-Blue-text: hsl(200, 15%, 8%);
  --Dark-Gray: hsl(0, 0%, 52%);
  --Very-Light-Gray: #ebeced;
  --White: hsl(0, 0%, 100%);
}
/* css component */
body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: var(--Very-Light-Gray);
}

body.dark-mode {
  background-color: var(--Very-Dark-Blue);
}
/* end css rules */

/* start header */
header {
  width: 100%;
  background-color: var(--White);
  color: var(--Very-Dark-Blue-text);
}

/* header dark mode */
header.dark-mode {
  background-color: var(--Dark-Blue);
  color: var(--Very-Light-Gray);
}

header nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header nav .container .text {
  font-size: 24px;
  font-weight: bold;
}
header nav .container .dark {
  display: flex;
  align-items: center;
  cursor: pointer;
}

header nav .container .dark i {
  margin-right: 10px;
}

header nav .container .dark-mode:hover {
  text-decoration: underline;
}

/* start main  */
main {
  padding: 40px 0;
}
/* start form  */

form {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 100%;
}
@media (max-width: 767px) {
  form {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* search form */
form .search {
  position: relative;
  color: var(--Dark-Gray);
  max-width: 100%;
}

form .search.dark-mode {
  color: white;
}

form .search i {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}

form .search [type="search"] {
  width: 350px;
  height: 40px;
  border: none;
  padding: 5px 5px 5px 40px;
  background-color: var(--White);
  border-radius: 5px;
  box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
}

@media (max-width: 767px) {
  form .search [type="search"] {
    max-width: 100%;
    margin-bottom: 20px;
  }
}

form .search [type="search"]::placeholder {
  color: var(--Dark-Gray);
}

form .search [type="search"].dark-mode {
  background-color: var(--Dark-Blue);
  color: var(--White);
}

form .search [type="search"].dark-mode::placeholder {
  color: var(--White);
}

form .search [type="search"]:focus {
  outline: none;
}

form .search [type="search"]:focus::placeholder {
  opacity: 0;
}

/* select styling */
select {
  width: 200px;
  height: 40px;
  color: var(--Very-Dark-Blue-text);
  background-color: var(--White);
  border: none;
  padding: 5px 5px 5px 20px;
  box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
}

select:focus {
  outline: none;
}

select option {
  color: var(--Very-Dark-Blue-text);
  background-color: var(--White);
  box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
}
/* select dark mode */
select.dark-mode {
  background-color: var(--Dark-Blue);
  color: var(--Very-Light-Gray);
}

select.dark-mode option {
  color: var(--White);
  background-color: var(--very-Dark-Blue);
}

/* content styling */

.cont {
  padding: 40px 0;
  position: relative;
  min-height: calc(100vh - 400px);
  max-width: 100%;
}
.cont .loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
}
.cont .loading img {
  max-width: 100%;
}
.cont .loading.hide {
  display: none;
}

.cont .content {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 30px;
  max-width: 100%;
}

.cont .content a {
  text-decoration: none;
  color: var(--Very-Dark-Blue-text);
}

/* card styling */
.cont .content a .card {
  min-width: 280px;
  background-color: var(--White);
  padding: 20px 10px;
  border-radius: 10px;
  max-width: 100%;
  font-size: 14px;
  min-height: 340px;
}
.cont .content a .card:hover {
  box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
  transform: scale(1.1);
  transition: var(--main-transition);
}
.cont .content a .card img {
  width: 100%;
  max-width: 100%;
  min-height: 180px;
  max-height: 180px;
}

.cont .content a .card h2 {
  margin: 10px 0;
  padding: 5px 0;
  font-size: 18px;
  text-transform: capitalize;
}

.cont .content a .card h3 {
  margin: 5px 0;
  font-size: 14px;
  text-transform: capitalize;
}

.cont .content a .card span {
  color: var(--Dark-Gray);
}
/* card dark mode */
.cont .content a .card.dark-mode {
  background-color: var(--Dark-Blue);
}

.cont .content a .card.dark-mode h2 {
  color: var(--Very-Light-Gray);
}

.cont .content a .card.dark-mode h3 {
  color: var(--Very-Light-Gray);
}

.cont .content a .card.dark-mode span {
  font-weight: normal;
  color: var(--Very-Light-Gray);
}

/* end content */

/*start buttons */
.buttons {
  margin: 40px auto 10px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.btn-container {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.buttons.hide {
  display: none;
}

.hide {
  display: none !important;
}
.buttons button {
  width: 40px;
  height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-right: 10px;
  cursor: pointer;
  font-weight: bold;
  background-color: var(--White);
  color: var(--Very-Dark-Blue-text);
  font-size: 18px;
  border: none;
}

.buttons button.dark-mode {
  background-color: var(--Dark-Blue);
  color: var(--Very-Light-Gray);
  border-radius: 5px;
  color: white;
}

.buttons button.dark-mode.active {
  background-color: var(--Very-Dark-Blue-text);
}

.buttons button.active {
  background-color: gainsboro;
}