@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam:wght@300;400;500;700&display=swap');

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  position: relative;
}

:root {
  /* Colors */
  --dark-grayish-blue: hsl(227, 12%, 61%);
  --very-dark-blue: hsl(233, 12%, 13%);
  --very-pale-red: hsl(13, 100%, 96%);
  --very-light-gray: hsl(0, 0%, 98%);
  --accent-color: hsl(12, 88%, 59%);
  --dark-blue: hsl(228, 39%, 23%);
  --swiper-theme-color: var(--accent-color);
}

html {
  font-size: 62.5%;
  /* Make default font equal 10px */
  font-family: 'Be Vietnam', sans-serif;
}

body {
  /* background: var(--very-light-gray); */
  overflow-x: hidden;
}

body.overlay {
  overflow-y: hidden;
  /* Adding padding to replace the scroll bar space */
  padding-right: 16px;
}

body.overlay .hero__overlay {
  display: block;
}

h1,
h2,
h3,
h4 {
  color: var(--dark-blue);
}

p {
  line-height: 2.2rem;
  color: var(--dark-grayish-blue);
  font-size: 1.5rem;
}

img {
  max-width: 100%;
}
/* Helper Calsses */
.container {
  width: 90%;
  margin: 0 auto;
}

.row {
  display: flex;
  flex-wrap: wrap;
}

.flex {
  display: flex;
}

.flex.col {
  flex-direction: column;
}

.flex.ai {
  align-items: center;
}

.flex.jc {
  justify-content: center;
}

.hide {
  display: none;
}

.section {
  min-height: 100vh;
  padding: 12rem 0;
}

.cta {
  background: var(--accent-color);
  border: none;
  outline: none;
  padding: 1.4rem 0;
  border-radius: 10rem;
  color: var(--very-light-gray);
  font-size: 1.3rem;
  font-weight: 600;
  box-shadow: 5px 5px 20px rgb(255 68 0 / 19%);
  cursor: pointer;
  transition: opacity 0.4s ease;
  width: 16rem;
}

.cta:hover {
  opacity: 0.8;
}

::placeholder {
  font-size: 1.2rem;
}

/*----------------- Header --------------*/

header {
  justify-content: space-between;
  height: 10vh;
  width: 100%;
  padding: 0 2rem;
  position: fixed;
  z-index: 3;
  transition: all 0.5s cubic-bezier(0.75, 1.94, 0.97, 1.81);
}

header.sticky {
  background: white;
  height: 8vh;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.header__logo {
  width: 20%;
  min-width: 100px;
  margin-top: 1rem;
}

.header__menu-toggle {
  width: 2.2rem;
  height: 2.2rem;
  cursor: pointer;
  opacity: 0.7;
  user-select: none;
}

.header__menu-toggle:hover,
.nav__link:hover {
  opacity: 1;
}

.header__menu-toggle:active {
  transform: scale(0.97);
}

.header__nav {
  position: absolute;
  top: calc(10vh + 1rem);
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  width: 90%;
  max-width: 500px;
  border-radius: 5px;
  padding: 2rem 0;
  box-shadow: 2px 4px 10px rgba(0, 0, 0, 0.1);
  animation: fade-in 600ms;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0px);
  }
}

.nav__menu {
  list-style: none;
  text-align: center;
}

.nav__link {
  text-decoration: none;
  display: inline-block;
  padding: 1rem 2rem;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--dark-blue);
  opacity: 0.7;
  transition: opacity 0.3s ease-out;
}

/* Cancel the margin on the last link */
.nav__item:not(:last-child) .nav__link {
  margin-bottom: 1rem;
}

/*-------------------- Main Section ---------------*/
.hero-section {
  overflow: hidden;
}

.hero__text {
  margin-top: 2rem;
  text-align: center;
}

.hero__title {
  font-size: 3rem;
  line-height: 3.5rem;
  font-weight: 700;
}

.hero__idea {
  margin: 2rem auto 3rem;
  font-size: 1.6rem;
  color: var(--dark-grayish-blue);
  width: 90%;
  max-width: 450px;
}

.hero__overlay {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(to bottom, #fff, #00000026);
  z-index: 2;
  display: none;
}

.hero__bg-pattern {
  position: absolute;
  top: -10%;
  right: -30%;
  left: 40%;
  z-index: -1;
}

/*--------- About Section ----------*/
.about-section {
  overflow: hidden;
  padding: 10rem 0 20rem;
}

.about__bg-pattern {
  position: absolute;
  top: -50%;
  left: 70%;
  right: -50%;
  z-index: -1;
  width: 70%;
}

.about__intro {
  width: 90%;
  margin: 0 auto;
  text-align: center;
  margin-bottom: 5rem;
}

.about__title {
  font-size: 3rem;
  line-height: 3rem;
  margin-bottom: 2rem;
}

.features__item:not(:last-child) {
  margin-bottom: 4rem;
}

.features__title {
  background: var(--very-pale-red);
  border-radius: 10rem 0 0 10rem;
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--dark-blue);
  font-size: 1.4rem;
  font-weight: 700;
}

.features__title .number {
  padding: 0.8rem 0;
  display: inline-block;
  text-align: center;
  width: 60px;
  margin-right: 1rem;
  box-shadow: none;
  cursor: auto;
}
.features__title .cta:hover {
  opacity: 1;
}

.feature__description {
  width: 90%;
  margin: 0 auto;
}

/*------------------- Testimonials section  -----------------*/
.testimonials-section {
  min-height: 50vh;
  padding-bottom: 8rem;
  text-align: center;
  overflow-x: hidden;
}

.testimonials__title .title {
  font-size: 3rem;
  margin-bottom: 12rem;
}

.testimonials__slider {
  width: 90%;
  max-width: 500px;
  margin: 0 auto 10rem;
  padding-bottom: 2rem;
}

.slider__wrapper {
  display: flex;
  transition: transform 0.5s ease-in-out;
  /*? Pervent default action and enable out action */
  touch-action: none;
}

.testimonials__item {
  flex: 1 0 100%;
  margin-right: 2rem;
  background: var(--very-light-gray);
  border-radius: 1rem;
  box-shadow: 2px 4px 15px rgb(0 0 0 / 10%);
  cursor: grab;
  user-select: none;
}

.slider__indicators {
  position: absolute;
  bottom: -2rem;
  width: 100%;
  height: 2rem;
}

.indicator {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--accent-color);
  margin-right: 0.5rem;
  cursor: pointer;
}

.indicator.active {
  background: var(--accent-color);
}

.user__img {
  width: 80px;
  height: 80px;
  left: 50%;
  top: -5rem;
  transform: translateX(-50%);
}

.testimonials__text {
  margin-top: -3rem;
}

.user__name {
  font-size: 1.6rem;
  font-weight: 600;
  display: inline-block;
}

.user__word {
  max-width: 60ch;
  margin: 0 auto;
  padding: 2rem;
  font-size: 1.4rem;
}

/*-------------------- Message section -----------------*/
.message {
  padding: 12rem 3rem;
  text-align: center;
  background: var(--accent-color);
  overflow: hidden;
}

.message__title {
  font-size: 3rem;
  color: white;
  width: 80%;
  margin: 0 auto;
  margin-bottom: 5rem;
}

.message__cta {
  background: white;
  color: var(--accent-color);
}

.message__bg-pattern {
  position: absolute;
  left: 0;
}

/*--------------- Footer --------------*/
.section-footer {
  background: #1a1a1a;
  text-align: center;
  padding: 5rem 2rem 2rem;
}

.footer__inner {
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.footer__request-box {
  display: flex;
  justify-content: center;
  /* align-items: center; */
}

.request__input {
  border: none;
  border-radius: 10rem;
  margin-right: 0.5rem;
  padding: 0 2rem;
  width: 100%;
}

.request__cta {
  width: 10rem;
  box-shadow: none;
}

.footer__lists {
  display: flex;
  justify-content: space-between;
  padding: 0 2rem;
}

.footer__lists ul {
  list-style: none;
  text-align: left;
}

.list__link {
  text-decoration: none;
  color: var(--very-light-gray);
  font-size: 1.2rem;
  padding: 1rem 0;
  display: inline-block;
  opacity: 0.8;
  transition: color 0.3s ease-in-out;
}

.list__link:hover {
  color: var(--accent-color);
}

.social-media {
  display: flex;
  justify-content: space-around;
  margin-bottom: 3rem;
}

.social-media img {
  width: 30px;
  height: 30px;
  transition: opacity 0.3s ease-in-out;
}

.social-media img:hover {
  opacity: 0.8;
}

.copyright {
  color: var(--very-light-gray);
  opacity: 0.5;
}

/* Attribution */
.attribution {
  font-size: 11px;
  text-align: center;
}
.attribution a {
  color: hsl(228, 45%, 44%);
}