@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,200..800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Fira+Sans+Condensed:wght@400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Ubuntu+Condensed&display=swap');

/* ROOT */
*{
  margin: 0;
  padding: 0;
  font-family: "Inter", sans-serif;
  box-sizing: border-box;
  /* border: solid 2px black; */
}

:root{
  --white-color-: #F8F8F8;
  --white-color-hover: #f2efef;
  --black-color-: #222;
  --black-color-hover: #22222299;
  --border-radius-: 12px;
  --title-font-: "Fira Sans Condensed", sans-serif;
}


/* HTML */
html{
  scroll-behavior: smooth;
}


/* BODY */
body{
  background-color: var(--white-color-);
}

.navigation, .home, .aboutme, .whaticando, .questions, .contact{
  min-height: 100vh;
  padding: 20px 100px 0;
}


/* NAVIGATION */
.navigation{
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 63px;
}

.nav_left{
  font-size: 30px;
  font-weight: 700;
  font-family: "Bricolage Grotesque", sans-serif;
  text-decoration: none;
  color: var(--black-color-);
}

.nav_right{
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
}

.nav_pages{
  text-decoration: none;
  color: black;
  font-weight: 500;
  border-bottom: solid 2px transparent;
  transition: 0.3s ease;
}
.nav_pages:hover{
  border-bottom: solid 2px black;
  transition: 0.3s ease;
}

.nav_button{
  text-decoration: none;
  color: var(--white-color-);
  font-weight: 500;
  background-color: var(--black-color-);
  padding: 10px 20px;
  border-radius: var(--border-radius-);
  transition: 0.3s ease;
}

.nav_button:hover{
  background-color: var(--black-color-hover);
}


/* HOME */
.home{
  min-height: calc(100vh - 63px);
  display: flex;
  align-items: center;
  justify-content: space-around;
}

.homeright img{
  display: block;
  width: 500px;
  border-radius: var(--border-radius-);
}

.home h1{
  font-family: "Fira Sans Condensed", sans-serif;
  font-size: 200px;
}

.home h4{
  font-family: var(--title-font-);
  font-size: 70px;
  transform: translateY(-50px);
}

.home p{
  font-size: 45px;
  font-weight: 300;
}

.home #home_btn{
  margin-top: 20px;
  display: flex;
  gap: 50px;
}

.home .aboutme_btn{
  text-decoration: none;
  font-size: 40px;
  color: var(--white-color-);
  border: solid 1px black;
  background-color: var(--black-color-);
  padding: 10px 20px;
  border-radius: var(--border-radius-);
  transform: translateY(0);
  box-shadow: 10px 20px 20px rgba(0, 0, 0, 0.203);
  transition: 0.3s ease;
}

.home #home_btn .aboutme_btn:hover{
  background-color: var(--black-color-hover);
  transform: translateY(-10px);
  transition: 0.3s ease;
}

.home #home_btn .contact_btn{
  text-decoration: none;
  font-size: 40px;
  color: var(--black-color-);
  border: solid 2px black;
  background-color: var(--white-color-);
  padding: 10px 20px;
  border-radius: var(--border-radius-);
  transform: translateY(0);
  transition: 0.3s ease;
}

.home #home_btn .contact_btn:hover{
  background-color: var(--white-color-hover);
  transform: translateY(-10px);
  transition: 0.3s ease;
}


/* ABOUTME */
.aboutme{
  padding: 0;
  padding-top: 30px;
  background-color: var(--black-color-);
  display: flex;
  flex-direction: column;
}

.aboutme h1{
  font-size: 100px;
  text-align: center;
  color: var(--white-color-);
  letter-spacing: 50px;
  font-family: "Share Tech Mono", monospace;
}

.aboutme .comments{
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex: 1;
  padding: 0 50px;
}

.aboutme img{
  width: 400px;
}

.aboutme .comments .comment{
  color: var(--white-color-);
  font-size: 28px;
  width: 500px;
  display: flex;
  font-family: "Share Tech Mono", monospace;
}

.aboutme .comments .comment:last-child{
  color: var(--white-color-);
  font-size: 28px;
  width: 500px;
  display: flex;
  font-family: "Share Tech Mono", monospace;
  text-align: right;
}


/* WHAT I CAN DO */
.whaticando{
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.whaticando h1{
  padding-top: 30px;
  letter-spacing: 10px;
  font-size: 100px;
  font-family: "Bricolage Grotesque", sans-serif;
}

.whaticando .infors{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  align-items: stretch;
  margin-top: 40px;
}

.whaticando .infors .infor{
  border-top: solid 5px rgba(8, 8, 8, 0.369);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.258);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  border-radius: var(--border-radius-);
  cursor: pointer;
  transition: 0.3s ease;
}

.whaticando .infors .infor:hover{
  box-shadow: 0 20px 100px rgba(0, 0, 0, 0.258);
  transition: 0.3s ease;
}

.whaticando .infors .infor h3{
  font-size: 36px;
}

.whaticando .infors .infor p{
  font-size: 22px;
  flex: 1;
}

.tags{
  display: flex;
  width: fit-content;
  margin: auto;
  gap: 10px;
}

.whaticando .infors .infor .tags .tag{
  font-size: 16px;
  border: solid 1px black;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  background-color: var(--white-color-hover);
}

.whaticando a{
  display: block;
  text-decoration: none;
  color: var(--white-color-);
  font-weight: 500;
  margin-top: 50px;
  font-size: 30px;
  margin: auto;
  padding: 10px 16px;
  background-color: var(--black-color-);
  box-shadow: 0 0 0;
  border-radius: var(--border-radius-);
  transform: translateY(0);
  transition: 0.3s ease;
}

.whaticando a:hover{
  transform: translateY(-10px);
  box-shadow: 0 5px 20px rgb(47, 46, 46);
  transition: 0.3s ease;
}


/* CONTACT */
.contact{
  background-color: #171717;
  color: var(--white-color-);
  display: flex;
  flex-direction: column;
}

.contact h1{
  font-size: 100px;
  letter-spacing: 10px;
  text-align: center;
  font-family: "Bricolage Grotesque", sans-serif;
}

.contact_container{
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex: 1;
}

.form{
  display: flex;
  flex-direction: column;
  width: 80vh;
  box-shadow:
    0 0 30px rgba(255, 255, 255, 0.08),
    0 0 80px rgba(255, 255, 255, 0.12),
    0 0 140px rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 40px 30px  ;
}

.form h3{
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 60px;
  text-align: center;
}

.form input{
  padding: 10px 0;
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 30px;
  margin: 50px 0;
  text-align: center;
  background-color: #171717;
  border: solid 0;
  border-bottom: solid 2px white;
  color: white;
  cursor: text;
  box-shadow: 0 0;
  transition: 0.3s ease;
}

.form input:focus{
  outline: none;
  transition: 0.3s ease;
}

.form a{
  text-decoration: none;
  color: black;
  font-size: 30px;
  background-color: white;
  font-weight: 700;
  cursor: pointer;
  padding: 6px 16px;
  width: fit-content;
  margin: auto;
  border-radius: 8px;
  box-shadow: 0 0 0;
  transform: translateY(0);
  transition: 0.3s ease;
}

.form a:hover{
  box-shadow: 0 5px 15px rgba(255, 255, 255, 0.525);
  transform: translateY(-10px);
  transition: 0.3s ease;
}

.contact_right{
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.contact_right h3{
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 60px;
  text-align: center;
}

.socialmedia{
  display: flex;
  justify-content: space-around;
  align-items: center;  
}

.socialmedia img{
  width: 60px;
}

.socialmedia a{
  transform: translateY(0);
  
  transition: 0.3s ease;
}

.socialmedia a:hover{
  transform: translateY(-8px);
  transition: 0.3s ease;
}

/* QRCODE */
.qrcode{
  min-height: calc(100dvh - 63px);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
.qrcode img{
  width: 500px;
}
.qrcode p{
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 40px;
  text-align: center;
}


/* ===== RESPONSIVE: dán toàn bộ đoạn này vào CUỐI file style.css ===== */

/* Nút hamburger: ẩn trên desktop */
.nav_toggle{
  display: none;
  background: none;
  border: 0;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  color: var(--black-color-);
}


/* Máy cảm ứng: bỏ hiệu ứng nhấc lên khi hover */
@media (hover: none){
  .home #home_btn .aboutme_btn:hover,
  .home #home_btn .contact_btn:hover,
  .whaticando a:hover,
  .form a:hover,
  .socialmedia a:hover{
    transform: none;
  }
}


/* ===== TABLET NGANG (≤1024px) ===== */
@media (max-width: 1024px){
  .navigation, .home, .whaticando, .questions, .contact{
    padding-left: 60px;
    padding-right: 60px;
  }

  .nav_left{ font-size: 26px; }
  .nav_right{ gap: 24px; }

  .home h1{ font-size: clamp(80px, 14vw, 160px); }
  .home h4{ font-size: clamp(32px, 5vw, 56px); transform: translateY(-20px); }
  .home p{ font-size: 30px; }
  .homeright img{ width: 360px; }
  .home .aboutme_btn,
  .home #home_btn .contact_btn{ font-size: 28px; }
  .home #home_btn{ gap: 24px; }

  .aboutme h1{ font-size: 70px; letter-spacing: 20px; }
  .aboutme .comments{ padding: 0 30px; }
  .aboutme img{ width: 280px; }
  .aboutme .comments .comment,
  .aboutme .comments .comment:last-child{
    width: 300px;
    font-size: 20px;
  }
  .whaticando{
    padding: 20px;
  }
  .whaticando h1{ font-size: 50px; }
  .whaticando .infors{ grid-template-columns: repeat(1, 1fr); }
  .whaticando .infors .infor{padding: 20px;}
  .whaticando .infors .infor h3{ font-size: 30px; margin-bottom: -20px; }
  .whaticando .infors .infor p{ font-size: 19px; }
  .whaticando a{margin-top: 10px;}

  .contact h1{ font-size: 70px; }
  .contact_container { flex-direction: column;}
  .form {padding:20px;}
  .form h3, .contact_right h3{ font-size: 44px; }
  .contact_right{padding-bottom: 10px;}
  .form input{ font-size: 24px; }
}


/* ===== TABLET DỌC (≤768px) ===== */
@media (max-width: 768px){
  .navigation, .home, .whaticando, .questions, .contact{
    min-height: auto;
    padding-left: 24px;
    padding-right: 24px;
  }
  .aboutme{ min-height: auto; padding-bottom: 40px; }

  /* Navigation + hamburger */
  .navigation{ position: relative; }
  .nav_left{ font-size: 20px; }
  .nav_toggle{ display: block; }
  .nav_right{
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 20px;
    padding: 24px;
    background-color: var(--white-color-);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    z-index: 100;
  }
  .nav_right.open{ display: flex; }

  /* Home */
  .home{
    min-height: auto;
    flex-direction: column;
    justify-content: center;
    gap: 30px;
    padding-top: 40px;
    padding-bottom: 60px;
    text-align: center;
  }
  .home h1{ font-size: clamp(64px, 22vw, 120px); }
  .home h4{ font-size: 28px; transform: none; margin-bottom: 8px; }
  .home p{ font-size: 20px; }
  .homeright img{ width: 100%; max-width: 320px; }
  .home #home_btn{
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
  }
  .home .aboutme_btn,
  .home #home_btn .contact_btn{ font-size: 20px; }

  /* About me */
  .aboutme h1{ font-size: 44px; letter-spacing: 6px; }
  .aboutme .comments{
    flex-direction: column;
    gap: 24px;
    padding: 30px 24px 0;
  }
  .aboutme .comments .comment,
  .aboutme .comments .comment:last-child{
    width: 100%;
    font-size: 18px;
    text-align: left;
  }
  .aboutme img{ width: 100%; max-width: 300px; }

  /* What I can do */
  .whaticando h1{ font-size: 40px; letter-spacing: 4px; }
  .whaticando .infors{ grid-template-columns: 1fr; gap: 20px; }
  .whaticando .infors .infor{ padding: 24px; }
  .whaticando .infors .infor h3{ font-size: 26px; }
  .whaticando .infors .infor p{ font-size: 17px; }
  .tags{ flex-wrap: wrap; justify-content: center; }
  .whaticando a{ font-size: 22px; margin-top: 30px; margin-bottom: 40px; }

  /* Contact */
  .contact{ padding-bottom: 40px; }
  .contact h1{ font-size: 40px; letter-spacing: 4px; text-align: center; }
  .contact_container{
    flex-direction: column;
    gap: 40px;
    margin-top: 30px;
  }
  .contact_left{ width: 100%; display: flex; justify-content: center; }
  .form{ width: 100%; max-width: 600px; padding: 24px 16px; }
  .form h3, .contact_right h3{ font-size: 32px; }
  .form input{ font-size: 18px; margin: 24px 0; }
  .form a{ font-size: 22px; }
  .contact_right{ gap: 24px; width: 100%; }
  .socialmedia{ flex-wrap: wrap; justify-content: center; gap: 24px; }
  .socialmedia img{ width: 48px; }
}


/* ===== ĐIỆN THOẠI (≤480px) ===== */
@media (max-width: 480px){
  .navigation, .home, .whaticando, .questions, .contact{
    padding-left: 16px;
    padding-right: 16px;
  }

  .nav_left{ font-size: 17px; }

  .home h4{ font-size: 22px; }
  .home p{ font-size: 17px; }
  .home #home_btn{ flex-direction: column; align-items: center; }
  .home .aboutme_btn,
  .home #home_btn .contact_btn{ font-size: 18px; width: 100%; max-width: 260px; }

  .aboutme h1{ font-size: 34px; letter-spacing: 3px; }
  .aboutme .comments{ padding: 24px 16px 0; }
  .aboutme .comments .comment,
  .aboutme .comments .comment:last-child{ font-size: 16px; }

  .whaticando h1{ font-size: 32px; letter-spacing: 2px; }
  .whaticando .infors .infor{ padding: 20px; }
  .whaticando .infors .infor h3{ font-size: 22px; }
  .whaticando .infors .infor p{ font-size: 16px; }
  .whaticando .infors .infor .tags .tag{ font-size: 14px; padding: 4px 12px; }

  .contact h1{ font-size: 32px; letter-spacing: 2px; }
  .form h3, .contact_right h3{ font-size: 26px; }
  .form input{ font-size: 16px; }

  .qrcode img{width: 300px;}
  .qrcode p{font-size: 30px;}
}