@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,300;0,400;0,600;0,700;1,300;1,400&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  outline: none;
  border: none;
  text-transform: capitalize;
  transition: all 0.2s linear;
}
html {
  font-size: 62.5%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}
body {
  background: #153084;
  font-family: "Poppins", sans-serif;
}

*::selection {
  background: #2b3dda;
  color: #0c7680;
}

html {
  font-size: 62.5%;
  overflow-x: hidden;
}
html::-webkit-scrollbar {
  width: 0.8rem;
}
html::-webkit-scrollbar-track {
  background: rgb(235, 202, 245);
}
html::-webkit-scrollbar-thumb {
  background: #420177;
}

/* pre loader start */
.loader-container {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10000;
  background: #e6eff1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 100%;
}
.loader-container.fade-out {
  top: -120%;
}
/* pre loader end */

/* navbar starts */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.7rem 10%;
  height: 6.5rem;
  background-color: #4481b6;
  box-shadow: 0 1px 4px rgba(146, 161, 176, 0.3);
}
.Naruto {
  position: absolute;
  top: -10px; /* chỉnh vị trí trên/dưới theo ý bạn */
  left: -100px; /* bắt đầu ngoài màn hình */
  width: 90px; /* chỉnh kích thước gif */
  animation: naruto-run 12s linear infinite; /* thời gian chạy qua màn hình */
  pointer-events: none; /* không cản click menu */
}
@keyframes naruto-run {
  0% {
    left: -100px; /* ngoài màn hình bên trái */
  }
  100% {
    left: 100%; /* chạy hết qua bên phải */
  }
}

.Dog {
  position: absolute;
  top: -10px; /* chỉnh vị trí trên/dưới theo ý bạn */
  left: -100px; /* bắt đầu ngoài màn hình */
  width: 90px; /* chỉnh kích thước gif */
  animation: dog-run 12s linear infinite; /* thời gian chạy qua màn hình */
  pointer-events: none; /* không cản click menu */
}
@keyframes dog-run {
  0% {
    left: -200px; /* ngoài màn hình bên trái */
  }
  100% {
    left: 100%; /* chạy hết qua bên phải */
  }
}

section {
  min-height: 100vh;
  padding: 2rem 9%;
}
.heading {
  font-size: 3.5rem;
  color: rgb(32, 32, 32);
  font-weight: 800;
  text-align: center;
}
.heading span {
  color: rgb(115, 3, 167);
}
header .logo {
  font-size: 1.9rem;
  font-weight: 800;
  text-decoration: none;
  color: #0e2431;
}
header .logo i {
  font-size: 2.2rem;
}
header .logo:hover {
  color: #fc8c05;
}
header .navbar ul {
  list-style: none;
  display: flex;
  justify-content: center;
  align-items: center;
}
header .navbar li {
  margin-left: 2.5rem;
}
header .navbar ul li a {
  font-size: 1.57rem;
  color: #0e2431;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.04rem;
  transition: 0.2s;
}
header .navbar ul li a.active,
header .navbar ul li a:hover {
  color: #011aff;
  border-bottom: 0.2rem solid #011aff;
  padding: 0.5rem 0;
}
/* navbar ends */

/* hamburger icon starts*/
#menu {
  font-size: 3rem;
  cursor: pointer;
  color: rgb(24, 2, 63);
  display: none;
}
@media (max-width: 768px) {
  #menu {
    display: block;
  }
  header .navbar {
    position: fixed;
    top: 6.5rem;
    right: -120%;
    width: 75%;
    height: 100%;
    text-align: left;
    align-items: flex-start;
    background-color: #0e0f31;
  }
  header .navbar ul {
    flex-flow: column;
    padding: 1rem;
  }
  header .navbar ul li {
    text-align: center;
    width: 100%;
    margin: 1rem 0;
    border-radius: 0.5rem;
    width: 26rem;
  }
  header .navbar ul li a {
    display: block;
    padding: 1rem;
    text-align: left;
    color: #fff;
    font-size: 2rem;
  }
  header .navbar ul li a.active,
  header .navbar ul li a:hover {
    padding: 1rem;
    color: #fff;
    border-radius: 0.5rem;
    border-bottom: 0.5rem solid #011aff;
  }
  .fa-times {
    transform: rotate(180deg);
  }
  header .navbar.nav-toggle {
    right: 0;
  }
}
/* hamburger icon ends */

/* hero section starts*/
.home {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  min-height: 100vh;
  align-items: center;
}

.home-btn-group {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-top: 1.2rem;
}

.home #particles-js {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
}
.home::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
}
.home .content {
  flex: 1 1 40rem;
  padding-top: 1rem;
  z-index: 1;
}
.home .image {
  flex: 1 1 40rem;
  z-index: 1;
}
.home .image img {
  width: 70%;
  margin-left: 6rem;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  transition: box-shadow 0.3s, filter 0.3s;
}
.home .image img:hover {
  box-shadow: 0 8px 32px rgba(32, 32, 120, 0.45), 0 0 0 8px #ff7b0033;
  filter: brightness(1.08) saturate(1.2);
}
.home .content h2 {
  font-size: 5rem;
  font-weight: 800;
  color: #002057;
}
.home .content h2 span {
  font-size: 5rem;
  font-weight: 800;
  color: #ff7b00;
}
.home .content p {
  font-size: 2.5rem;
  color: #000;
  font-weight: 600;
  padding: 1rem 0;
}
.home .content p span {
  font-size: 2.5rem;
  color: rgb(148, 8, 8);
  font-weight: 600;
  padding: 1rem 0;
}
.home .btn {
  margin-top: 1rem;
  line-height: 0;
  padding: 1.6rem 3rem;
  border-radius: 4em;
  transition: 0.5s;
  color: #fff;
  background: #2506ad;
  box-shadow: 0px 5px 18px rgba(48, 68, 247, 0.6);
  font-family: "Nunito", sans-serif;
}
.home .btn span {
  font-weight: 700;
  font-size: 1.7rem;
  letter-spacing: 0.1rem;
}
.home .btn i {
  margin-left: 0.3rem;
  font-size: 1.5rem;
  transition: 0.3s;
}
.home .btn:hover {
  background: #1a047e;
}
.home .btn:hover i {
  transform: translateX(5px);
}
/* social icons start */
.socials {
  position: relative;
  margin-top: 9rem;
}
.socials .social-icons {
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
}
.socials .social-icons li {
  display: inline-block;
  margin-bottom: 14px;
}
.social-icons a {
  font-size: 2rem;
  display: inline-block;
  line-height: 44px;
  color: #00d9ff;
  background-color: #09011b;
  width: 44px;
  height: 44px;
  text-align: center;
  margin-right: 8px;
  border-radius: 100%;
  -webkit-transition: all 0.2s linear;
  -o-transition: all 0.2s linear;
  transition: all 0.2s linear;
}
.social-icons a:active,
.social-icons a:focus,
.social-icons a:hover {
  color: #fff;
  background-color: #0685da;
}
.social-icons a.github:hover {
  background-color: #0e0e0e;
}
.social-icons a.twitter:hover {
  background-color: #00aced;
}
.social-icons a.linkedin:hover {
  background-color: #007bb6;
}
.social-icons a.dev:hover {
  background-color: #070707;
}
.social-icons a.instagram:hover {
  background-color: #ee00da;
}
/* social icons end */

/* hero media queries starts*/
@media (max-width: 450px) {
  .home .btn {
    margin: 4rem 0;
  }
  .socials {
    margin-top: 12rem;
  }
  .home .image img {
    margin-top: -12rem;
  }
  .home .content p {
    font-size: 2.2rem;
  }
  .home .content p span {
    font-size: 2.2rem;
  }
}
/* hero media queries ends*/
/* hero section end */

/* about section starts */
.about {
  background: rgb(8, 58, 97);
}
.about .row {
  display: flex;
  flex-direction: row;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 4rem;
  /* Glassmorphism effect */
  background: rgba(255,255,255,0.13);
  border-radius: 2.2rem;
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1.5px solid rgba(255,255,255,0.18);
  position: relative;
  overflow: hidden;
  animation: about-fade-in 1.2s cubic-bezier(.34,1.56,.64,1);
}

@keyframes about-fade-in {
  0% { opacity: 0; transform: translateY(60px) scale(0.98);}
  100% { opacity: 1; transform: translateY(0) scale(1);}
}

.about .row .image {
  text-align: center;
  flex: 1 1 35rem;
}
.about .row .image img {
  margin: 4rem;
  width: 30rem;
  height: 30rem;
  border-radius: 50%;
  box-shadow: 0 5px 24px rgba(0, 0, 0, 0.25), 0 0 0 8px #4a00e033;
  border: 5px solid transparent;
  background: linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, #6a5af9 0%, #32d1d6 100%) border-box;
  transition:
    box-shadow 0.35s cubic-bezier(.34,1.56,.64,1),
    border 0.35s,
    filter 0.35s;
  cursor: pointer;
  position: relative;
  z-index: 2;
  animation: avatar-glow 2.5s infinite alternate;
}

@keyframes avatar-glow {
  0% { box-shadow: 0 0 0 0 #32d1d633, 0 5px 24px rgba(0,0,0,0.25);}
  100% { box-shadow: 0 0 32px 8px #32d1d655, 0 5px 24px rgba(0,0,0,0.25);}
}

.about .row .image img:hover {
  filter: brightness(1.12) saturate(1.18);
  border: 5px solid #ffd700;
  box-shadow: 0 0 48px 12px #ffd70055, 0 8px 32px rgba(32, 32, 120, 0.25);
  animation: none;
}
.about .row .content {
  flex: 1 1 45rem;
  padding: 3rem;
}
.about .row .content h3 {
  color: rgb(27, 27, 27);
  font-size: 2.5rem;
}
.about .row .content .tag {
  font-size: 1.4rem;
  color: #020133;
  font-weight: 600;
  margin-top: 1rem;
}
.about .row .content p {
  font-size: 1.5rem;
  margin-top: 1.5rem;
  font-family: "Nunito";
  font-weight: 600;
  text-transform: none;
}
.about .row .content .box-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-family: "Nunito";
  font-weight: 600;
}
.about .row .content .box-container .box p {
  text-transform: none;
}
.about .row .content .box-container .box p span {
  color: #818be7;
}
.resumebtn {
  margin-top: 6rem;
}
.resumebtn .btn {
  padding: 1.7rem 3rem;
  border-radius: 0.8em;
  color: #fff;
  background: linear-gradient(90deg, #6a5af9 0%, #8f6ed5 100%);
  box-shadow: 0 4px 16px rgba(74,0,224,0.18);
  font-family: "Nunito", sans-serif;
  font-weight: 700;
  font-size: 1.8rem;
  letter-spacing: 0.1rem;
  border: none;
  outline: none;
  position: relative;
  overflow: hidden;
  transition: 
    background 0.4s cubic-bezier(.34,1.56,.64,1),
    transform 0.22s cubic-bezier(.34,1.56,.64,1),
    box-shadow 0.22s;
}
.resumebtn .btn:hover {
  background: linear-gradient(90deg, #8f6ed5 0%, #6a5af9 100%);
  transform: scale(1.06) translateY(-2px);
  box-shadow: 0 8px 24px rgba(74,0,224,0.22);
}

/* about media queries starts*/
@media screen and (max-width: 600px) {
  .about .row .image {
    margin-top: 2rem;
  }
  .about .row .image img {
    margin: 0 auto;
    width: 80%;
    mix-blend-mode: normal;
  }
  .about .row {
    padding: 0.5rem;
    margin-bottom: 7rem;
  }
  .about .row .content {
    padding: 1rem;
  }
  .about .row .content .box-container {
    gap: 0;
  }
}
/* about media queries ends*/
/* about section ends */

/* skills section starts */
.skills {
  min-height: 70vh;
  background: linear-gradient(to bottom, #57059e, #4a00e0);
}
.skills h2 {
  color: #fff;
}
.skills .heading span {
  color: rgb(255, 230, 0);
}
.skills .container {
  background: rgba(0, 0, 22, 0.4);
  color: #ffffff;
  border-radius: 2rem;
  padding: 2rem;
  width: 90%;
  margin: auto;
  margin-top: 2rem;
}
.skills .container .row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  flex-wrap: wrap;
  gap: 2rem;
}
.skills .container .bar {
  margin-bottom: 15px;
  padding: 10px;
  border-radius: 1rem;
  box-shadow: 0 4px 10px rgba(217, 74, 74, 0.2);
  background: rgba(13, 13, 48, 0.9);
  transition: 0.2s;
}
.skills .container .bar:hover {
  transform: scale(1.08) translateY(-6px);
  box-shadow: 0 8px 32px rgba(0, 112, 243, 0.18), 0 2px 8px rgba(0, 0, 0, 0.12);
  z-index: 2;
}
.skills .container .bar .info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}
.skills .container .bar .info i {
  font-size: 4rem;
}
.skills .container .bar .info span {
  font-size: 2rem;
  font-weight: 500;
  font-family: "Poppins";
  margin-left: 0.5rem;
}
/* skills media queries starts*/
@media screen and (max-width: 600px) {
  .skills .container {
    padding: 0;
    margin: 0;
  }
  .skills .container .row {
    grid-template-columns: repeat(2, 1fr);
    margin: 1rem;
    padding: 2rem 0.2rem 2rem 0.2rem;
    gap: 1rem;
  }
  .skills .container {
    margin-top: 5px;
    width: 100%;
  }
}
/* skills media queries ends*/
/* skills section ends */

/* education section starts */
.education {
  background: #304f91;
  min-height: 70vh;
}
.education .qoute {
  font-size: 1.5rem;
  text-align: center;
  font-family: "Nunito", sans-serif;
  font-weight: 600;
  margin-top: 0.5rem;
}
.education .box-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
.education .box-container .box {
  display: flex;
  flex-direction: row;
  width: 80%;
  border-radius: 0.5rem;
  box-shadow: 0.2rem 0.5rem 1rem rgba(0, 0, 0, 0.2);
  text-align: center;
  position: relative;
  margin-top: 2rem;
  overflow: hidden;
  transition: 0.3s;
  background: rgb(252, 252, 252);
}
.education .box-container .box:hover {
  transform: scale(1.03);
  box-shadow: 1rem 0.5rem 1.2rem rgba(0, 0, 0, 0.3);
}
.education .box-container .box .image {
  flex: 1 1 20rem;
  width: 100%;
}
.education .box-container .box img {
  object-fit: cover;
  position: relative;
  width: 100%;
  height: 100%;
}
.education .box-container .box .content {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1rem;
  flex-wrap: wrap;
  flex: 1 1 70rem;
}
.education .box-container .box .content h3 {
  font-size: 2.5rem;
  color: #012970;
  padding: 0.5rem 0;
  font-weight: 600;
  text-align: left;
  margin-left: 1rem;
}
.education .box-container .box .content p {
  font-size: 1.5rem;
  margin-left: 1rem;
  text-align: left;
}
.education h4 {
  font-size: 2rem;
  color: rgb(34, 109, 0);
  text-align: left;
  margin: 1rem;
  font-family: "Nunito", sans-serif;
  font-weight: 700;
}

/* education media queries starts*/
@media screen and (max-width: 600px) {
  .education .box-container .box {
    flex-direction: column;
    width: 100%;
  }
  .education .box-container .box .image {
    width: 100%;
    height: 25rem;
  }
  .education .box-container .box img {
    width: 100%;
  }
  .education .box-container .box .content {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    flex-wrap: wrap;
    flex: 0;
  }
  .education .btns {
    margin-top: 2rem;
    margin-left: 1rem;
    margin-right: 1rem;
    flex-wrap: wrap;
  }
}
/* education media queries ends*/
/* education section ends */

/* footer section starts */
.footer {
  min-height: auto;
  padding-top: 0;
  background: rgb(0, 1, 43);
}
.footer .box-container {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.footer .box-container .box {
  flex: 1 1 25rem;
  margin: 2.5rem;
}
.footer .box-container .box h3 {
  font-size: 2.5rem;
  color: #fff;
  padding-bottom: 1rem;
  font-weight: normal;
}
.footer .box-container .box p {
  font-size: 1.5rem;
  color: #ccc;
  padding: 0.7rem 0;
  text-transform: none;
}
.footer .box-container .box p i {
  padding-right: 1rem;
  color: #ffae00;
}
.footer .box-container .box a {
  font-size: 1.5rem;
  color: rgb(238, 238, 238);
  padding: 0.3rem 0;
  display: block;
}
.footer .box-container .box a:hover {
  color: #ffae00;
}
.footer .box-container .box .share {
  display: flex;
  flex-wrap: wrap;
  padding: 1rem 0;
}
.footer .box-container .box .share a {
  height: 4rem;
  width: 4rem;
  padding: 1rem;
  text-align: center;
  border-radius: 5rem;
  font-size: 1.7rem;
  margin-right: 1rem;
  transition: 0.2s;
  background: rgb(230, 230, 230);
  color: #02094b;
  border: none;
}
.footer .box-container .box .share a:hover {
  background: transparent;
  transform: scale(0.98);
  border: 0.1rem solid rgb(180, 178, 178);
  color: #ffae00;
}
.footer .credit {
  padding: 1rem 0 0 0;
  text-align: center;
  font-size: 1.5rem;
  font-family: "Nunito", sans-serif;
  font-weight: 600;
  color: #fff;
  border-top: 0.1rem solid #fff3;
}
.footer .credit a {
  color: #ffae00;
}
.footer .fa {
  color: #e90606;
  margin: 0 0.3rem;
  font-size: 1.5rem;
  animation: pound 0.35s infinite alternate;
}
@-webkit-keyframes pound {
  to {
    transform: scale(1.1);
  }
}
@keyframes pound {
  to {
    transform: scale(1.1);
  }
}
@media (max-width: 450px) {
  .footer .box-container .box {
    margin: 1.5rem;
  }
  .footer .box-container .box p {
    padding: 0.7rem;
  }
  .footer .box-container .box .share a {
    padding: 1.2rem;
  }
}
/* footer section ends */

/* common media queries starts*/
@media (max-width: 450px) {
  html {
    font-size: 55%;
  }
  body {
    padding-right: 0;
  }
  section {
    padding: 2rem;
  }
}
/* common media queries ends*/

/* scroll top starts */
#scroll-top {
  position: fixed;
  top: -140%;
  right: 2rem;
  padding: 1rem 1.5rem;
  font-size: 2rem;
  background: #ffae00;
  color: rgb(13, 0, 44);
  border-radius: 50%;
  transition: 1s linear;
  z-index: 1000;
}
#scroll-top.active {
  top: calc(100% - 12rem);
}

.daily-life {
  padding: 50px 0;
  background: linear-gradient(to bottom, #4b0082, #6a0dad, #7b2cbf, #8338ec); /* màu tím chuyển dần */
  color: white;
}

.daily-life {
  padding: 15px 250px;
  text-align: center;
  background-color: #f9f9f9;
}

.daily-life .heading {
  font-size: 4rem;
  margin-bottom: 20px;
}
.daily-life .heading span {
  color: #FFD700; /* màu vàng gold */
}

.photo-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
}

.daily-life .photo-gallery img {
  width: 22%;           /* 4 ảnh 1 hàng, trừ gap */
  max-width: 200px;     /* Giới hạn tối đa cho đẹp */
  min-width: 200px;     /* Không quá nhỏ khi co lại */
  aspect-ratio: 3/3;    /* Giữ tỷ lệ ảnh đồng đều */
  object-fit: cover;
  border-radius: 5%;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.6);
  border: 4px solid transparent;
  transition:
    box-shadow 0.35s cubic-bezier(.34,1.56,.64,1),
    border 0.35s,
    filter 0.35s;
  cursor: pointer;
}

.daily-life .photo-gallery img:hover {
  box-shadow: 0 12px 32px rgba(0,112,243,0.18), 0 2px 8px rgba(0,0,0,0.12);
  border: 4px solid #4a00e0; /* đổi màu viền theo nền */
  filter: brightness(1.08) saturate(1.1);
}

/* === Certifications: nền tím, quote to, meta ở trên ảnh === */
.certifications{
  padding: 4rem 9%;
  /* tím đậm dịu mắt */
  background: linear-gradient(180deg, #2b115e 0%, #1b103a 100%);
  color: #eaeaf2;
}

/* === Certifications: nền tím, quote to, meta ở trên ảnh === */
.certifications{
  padding: 4rem 9%;
  /* tím đậm dịu mắt */
  background: linear-gradient(180deg, #2b115e 0%, #1b103a 100%);
  color: #eaeaf2;
}

.certifications .heading i {
  color: #fff !important;
  text-shadow: 0 0 6px rgba(255,255,255,0.6);
}
.certifications .heading{
  text-align:center;
  padding-bottom: 1rem;
}

.certifications .heading span{
  color:#32d1d6; /* giữ tông accent cũ nhưng nổi trên nền tím */
}

.certifications .qoute{
  text-align:center;
  margin: 0 auto 2.2rem;
  max-width: 760px;
  font-size: 1.5rem;      /* to hơn */
  line-height: 1.6;
  opacity: .95;
  font-weight: 600;
}

/* Grid cards */
.certifications .box-container{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap:1.6rem;
}

/* Card style (giữ vibe tối, nổi trên nền tím) */
.certifications .box{
  display:flex;               /* để đảo thứ tự bằng order */
  flex-direction: column;
  background: rgba(191, 26, 26, 0.03);
  border: 1px solid rgba(204, 31, 31, 0.06);
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(192, 34, 34, 0.25);
  overflow: hidden;
  backdrop-filter: blur(2px);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.certifications .box:hover{
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(0,0,0,.32);
  border-color: rgba(255,255,255,.12);
}

/* ---- Meta (tên + ngày) ở TRÊN ảnh ---- */
.certifications .box .content{
  order: 1;                    /* đưa lên trước ảnh */
  padding: 1rem 1.2rem 1rem;
  border-bottom: 1px solid rgba(216, 14, 14, 0.06);
}
.certifications .box .content h3{
  margin: 0 0 .35rem;
  font-size: 1.75rem;
  font-weight: 700;
  color: #f3f6ff;
}
.certifications .box .content h4{
  margin: 0;
  font-size: 1.5rem;
  font-weight: 500;
  color: #c5c8d8;
}

/* Ảnh ở dưới meta */
.certifications .box .image{
  order: 2;
  width: 100%;
  aspect-ratio: 16/10;
  background: radial-gradient(1200px 300px at 10% 0%, rgba(50,209,214,.10), transparent),
              rgba(211, 21, 21, 0.02);
  display:grid;
  place-items:center;
}
.certifications .box .image img{
  max-width: 88%;
  max-height: 88%;
  object-fit: contain;
  filter: drop-shadow(0 6px 18px rgba(58, 56, 56, 0.25));
}

/* Responsive nhỏ hơn */
@media (max-width: 480px){
  .certifications .qoute{ font-size: 1.15rem; }
  .certifications .box-container{ grid-template-columns: 1fr; }
}


/* Hiệu ứng sóng cho tiêu đề hero section */
.wave-title {
  display: inline-block;
  font-size: 5rem;
  font-weight: 800;
  color: #0070f3;
  background: linear-gradient(90deg, #0070f3 60%, #00c6ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  animation: wave 2.5s infinite linear;
}

@keyframes wave {
  0% { transform: translateY(0);}
  10% { transform: translateY(-8px);}
  20% { transform: translateY(0);}
  30% { transform: translateY(8px);}
  40% { transform: translateY(0);}
  100% { transform: translateY(0);}
}

/* Hiệu ứng sóng nhạc cho nút Play Music */
.music-btn {
  position: relative;
  overflow: visible;
  background: linear-gradient(90deg, #2b3dda 60%, #2506ad 100%);
  box-shadow: 0px 5px 18px rgba(48, 68, 247, 0.6), 0 0 0 8px #2b3dda22;
  transition: background 0.4s, box-shadow 0.4s, transform 0.18s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.music-btn .music-icon {
  display: inline-flex;
  align-items: center;
  margin-left: 0.5rem;
  position: relative;
}
.music-btn .music-wave {
  display: none;
  width: 18px;
  height: 18px;
  margin-left: 0.2rem;
  vertical-align: middle;
  position: relative;
  top: 2px;
}
.music-btn .music-wave span {
  display: inline-block;
  width: 3px;
  height: 100%;
  margin: 0 1px;
  background: #fff;
  border-radius: 2px;
  animation: music-wave 1s infinite linear;
  opacity: 0.7;
}
.music-btn .music-wave span:nth-child(1) { animation-delay: 0s; }
.music-btn .music-wave span:nth-child(2) { animation-delay: 0.2s; }
.music-btn .music-wave span:nth-child(3) { animation-delay: 0.4s; }

@keyframes music-wave {
  0% { height: 18px; }
  20% { height: 8px; }
  40% { height: 18px; }
  60% { height: 12px; }
  80% { height: 18px; }
  100% { height: 18px; }
}

.music-btn.playing {
  background: linear-gradient(90deg, #1a047e 60%, #2b3dda 100%);
  box-shadow: 0px 8px 24px #2b3dda99, 0 0 0 12px #2b3dda33;
  transform: scale(1.04);
}
.music-btn .fa-music {
  color: #fff;
  font-size: 1.5rem;
  transition: color 0.3s;
}
.music-btn.playing .fa-music {
  color: #ffd700;
  text-shadow: 0 0 8px #ffd70088;
}
.music-btn.playing .music-wave {
  display: inline-block;
}

.about .row .content > * {
  opacity: 0;
  transform: translateY(32px);
  animation: about-content-fade 0.7s forwards;
}
.about .row .content h3 { animation-delay: 0.1s;}
.about .row .content .tag { animation-delay: 0.25s;}
.about .row .content p { animation-delay: 0.4s;}
.about .row .content .box-container { animation-delay: 0.6s;}
.about .row .content .resumebtn { animation-delay: 0.8s;}

@keyframes about-content-fade {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.about .heading i {
  color: #ffd700;
  animation: about-icon-bounce 1.2s infinite alternate;
  margin-right: 0.7rem;
}

@keyframes about-icon-bounce {
  0% { transform: translateY(0);}
  60% { transform: translateY(-8px);}
  100% { transform: translateY(0);}
}

.about .row:hover {
  transform: translateY(-8px) scale(1.015);
  box-shadow: 0 16px 48px 0 rgba(50, 209, 214, 0.18), 0 8px 32px rgba(0,0,0,0.13);
  transition: transform 0.35s cubic-bezier(.34,1.56,.64,1), box-shadow 0.35s;
}

/* Blog section */
.blog {
  background: linear-gradient(90deg, #2348c5 0%, #f8fafc 100%);
  padding: 4rem 9%;
  min-height: 60vh;
}
.blog .heading { text-align: center; margin-bottom: 2.5rem; }

/* Nếu không dùng layout lưới cũ có thể bỏ .blog-container */
.blog-container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}

/* --- CARD (gộp lại thành 1 block) --- */
.blog-card .blog-title {
  font-size: 2rem; font-weight: 700; color: #2506ad; margin-bottom: 1rem;
}
.blog-card .blog-desc {
  font-size: 1.3rem; color: #333; margin-bottom: 1.2rem; flex: 1;
}
.blog-card .blog-link {
  margin-top: auto; color: #6a5af9; font-weight: 600; text-decoration: underline;
  font-size: 1.2rem; transition: color 0.2s;
}
.blog-card .blog-link:hover { color: #2506ad; }

@keyframes blog-slide-in {
  to { opacity: 1; transform: translateX(0); }
}

/* --- OVERLAY/POPUP --- */
.blog-overlay {
  position: fixed; z-index: 9999; inset: 0;
  background: rgba(30, 34, 90, 0.75);
  display: none; align-items: center; justify-content: center;
  animation: fadeIn 0.3s;
}
@keyframes fadeIn { from {opacity:0;} to {opacity:1;} }
.blog-overlay.active { display: flex; }
.blog-popup {
  background:#eee9e9; border-radius:1.5rem; max-width:1000px; width:90vw; max-height:80vh;
  padding: 2.5rem 2rem 2rem; box-shadow: 0 8px 48px rgba(31,38,135,.18);
  position: relative; overflow-y:auto; animation: popupZoom .4s cubic-bezier(.34,1.56,.64,1);
}
@keyframes popupZoom { from {transform:scale(.7);} to {transform:scale(1);} }
.blog-popup .close-btn {
  position:absolute; top:1.2rem; right:1.5rem; background:none; border:none;
  font-size:2.5rem; color:#6a5af9; cursor:pointer; z-index:2; transition:color .2s;
}
.blog-popup .close-btn:hover { color:#2506ad; }
.blog-popup .popup-title { font-size:2.2rem; font-weight:700; margin-bottom:1.2rem; color:#2506ad; }
.blog-popup .popup-content {
  font-size:1.4rem; color:#222; white-space:pre-line; line-height:1.7; margin-bottom:1rem; word-break:break-word;
}

/* --- CAROUSEL --- */
.blog-carousel-outer {
  overflow:hidden; width:100%; position:relative; padding:0; margin:0 auto 2rem;
}
.blog-carousel {
  display:flex; gap:2rem; width:max-content;
  animation: blog-marquee 30s linear infinite;
  will-change: transform;
}
@keyframes blog-marquee { 0% {transform:translateX(0);} 100% {transform:translateX(-50%);} }

/* pause on hover */
.blog-carousel-outer:hover .blog-carousel { animation-play-state: paused; }

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  .blog-carousel { animation: none; transform: none; }
}

/* responsive */
@media (max-width: 700px) {
  .blog-card { min-width: 85vw; max-width: 90vw; flex: 0 0 85vw; }
}

.blog-card {
  background: rgba(183, 193, 227, 0.95);
  border-radius: 1.2rem;
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.10);
  padding: 2.2rem 2.5rem;
  min-width: 320px;
  max-width: 340px;
  flex: 0 0 320px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;

  /* hiệu ứng xuất hiện ban đầu */
  opacity: 0;
  transform: translateX(-60px);        /* trạng thái đầu */
  animation: blog-slide-in 0.8s forwards;
  animation-delay: var(--delay, 0s);

  margin-bottom: 1.5rem;
  border-left: 6px solid #6a5af9;

  /* mượt khi hover */
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  will-change: transform;
}

.blog-card:hover {
  /* GIỮ translateX(0) rồi mới scale để rõ ràng */
  transform: translateX(0) scale(1.05);
  z-index: 2;  /* nổi lên trên các card khác */
  box-shadow: 0 20px 48px 0 rgba(50, 209, 214, 0.18),
              0 12px 32px rgba(0,0,0,0.12);
}