header,
footer > div {
  background: var(--bs-gradient-bg);
  color: var(--color-text);
}

/* links-items */
.anchor-hover {
  position: relative;
  transition: 0.3s ease;
  font-weight: 600;
}

.anchor-hover::after {
  content: "";
  width: 0;
  height: 4px;
  position: absolute;
  background: var(--color-text-hover);
  left: 0;
  bottom: -6px;
  transition: 0.3s ease;
}

.anchor-hover:hover {
  color: var(--color-text-hover);
}

.anchor-hover:hover::after {
  width: 100%;
}

/* ===================================== */

/* SECTION HOME PAGE */
main section {
  width: 100%;
}

section#hero {
  min-height: 90vh;
  width: 100%;
}

section#hero * {
  transition: var(--bs-transition);
}

section#hero > div {
  background: var(--bs-color-bg);
  border-radius: 35px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

section#hero h1 {
  font-weight: 700;
  color: var(--color-text-card);
  transition: var(--bs-transition);
}

section#hero p {
  font-weight: 400;
  color: var(--color-text-card);
}

section#hero lord-icon {
  width: 400px;
  height: 400px;
}

.primary-btn {
  padding: 0.8rem 1.2rem;
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--bs-box-shadow);
  transition: var(--bs-transition);
  cursor: pointer;
}

.primary-btn:hover {
  background: var(--secondary);
  animation: none;
}

.secondary-btn {
  background: var(--color-text);
  color: var(--color-bg);
  border: 1px solid var(--color-bg);
}

.section__box h3 {
  font-weight: 600;
}

/* SECTION FEATURES */

.section__box {
  background: var(--bs-color-card);
  padding: 1rem;
  border-top: 5px solid var(--color-border-section-card);
  border-radius: 15px;
  color: var(--color-text-card);
  position: relative;
}

.feature__box .section__box {
  border: none;
  overflow: hidden;
}

.feature__box .section__dot {
  width: 10px;
  height: 10px;
  position: absolute;
  border-radius: 50%;
  top: 15px;
  right: 15px;
  background: var(--color-border-section-card-light);
  transition: all 0.7s ease;
}

.feature__box .section__box:hover .section__dot {
  transform: scale(120);
  border-radius: 5px;
  z-index: 0;
}

.feature__box .section__box:hover {
  color: white !important;
}

.feature__box:hover {
  animation: none;
}

/* SECTION DEVICE-MOCKUP */
section#device-mockups {
  background: var(--bs-gradient-bg);
  transition: var(--bs-transition);
  position: relative;
}

section#device-mockups * {
  color: var(--color-text);
}

section#device-mockups .section__subtitle {
  max-width: 500px;
  text-align: left;
  z-index: 2;
}

section#device-mockups .blank {
  /* height: 1.8rem; */
}

.mockups__container {
  position: relative;
  width: 100%;
  margin: 0 auto;
}

.mockup__item {
  transition: all 0.3s ease;
}

.all-devices {
  width: 1000px;
}

.imac {
  width: 450px;
  height: auto;
  top: 45%;
  left: 35%;
  transform: translate(-50%, -50%);
  z-index: 1;
}

.macbook {
  width: 280px;
  height: auto;
  top: 45%;
  left: 45%;
  z-index: 3;
}

.ipad {
  width: 200px;
  height: auto;
  top: 55%;
  left: 15%;
  z-index: 4;
}

.pixel8 {
  width: 120px;
  height: auto;
  top: 55%;
  left: 10%;
  z-index: 2;
  transform: translate(-50%, -50%);
}

/*  SECTION TESTIMONIALS*/

.section__subtitle {
  color: var(--color-text-card);
}

div#testimonials-container > * {
  transition: var(--bs-transition);
}

.testimonial__card {
  border-radius: 15px;
  break-inside: avoid;
  background: var(--bs-color-card);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  color: var(--color-text-card);
}

.person__avt {
  width: 40px;
  height: 40px;
  border-radius: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--bs-person-avt-bg);
  color: var(--color-text);
  overflow: hidden;
}

.person__avt img {
  object-fit: cover;
}

.person p {
  font-weight: 600;
}

/* SECTION TOOLS PREVIEW */

.tools-btn {
  width: max-content;
}

.tools-btn.tools-btn-inactive {
  background: #9ca3af;
  cursor: not-allowed;
}

.tools__box:hover {
  animation: none;
}

/* SECTION HOW IT WORK */
section#how-it-work {
  background: var(--bs-section-hiw-bg);
  transition: var(--bs-transition);
}

.step__container {
  border-radius: 20px;
  min-height: 300px;
  min-width: 250px;
  color: var(--color-text-card);
  transition: all 0.3s ease;
  position: relative;
}

.step__behind {
  background: var(--color-bg-light);
  border-radius: 20px;
  min-height: 300px;
  width: 100%;
  transition: all 0.3s ease;
  position: absolute;
  z-index: 0;
}

.step__container:hover > .step__box {
  transform: translateX(15px);
}

.step__container:hover > .step__behind {
  min-height: 350px;
  transform: translateX(-15px);
}

.step__box {
  background: var(--bs-color-bg);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  transition: all 0.3s ease;
  height: 300px;
  width: 100%;
  z-index: 10;
  position: relative;
}

.step__box h3 {
  font-weight: 600;
}

.step__number {
  width: 150px;
  height: 50px;
  background: var(--color-bg-light);
  position: absolute;
  top: 50px;
  right: 75px;
  transform: translate(50%, -50%);
  padding: 0.5rem 0.8rem;
  color: var(--color-text);
  border-radius: 35px 0 0 35px;
}

/* SECTION FAQ */
section#faq {
  background: var(--bs-section-faq-bg);
  transition: all 0.3s ease;
}

.accordion-item {
  background: var(--bs-color-card);
  width: 90%;
}

.accordion-item > * {
  color: var(--color-text-card);
}

.accordion-item button {
  padding: 1rem 1.25rem;
  cursor: pointer;
}

.accordion-content {
  transition:
    max-height 0.3s ease-out,
    padding 0.3s ease-out;
  max-height: 0;
  overflow: hidden;
  padding: 0 1rem;
}

.accordion-content.active {
  max-height: 1000px;
  padding: 1rem;
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

/* SECTION CTA */
section#cta {
  position: relative;
  background: var(--bs-section-cta-bg);
  transition: 0.5s ease;
}

.floatingIcon {
  position: absolute;
  padding: 1rem;
  min-width: 3rem;
  min-height: 3rem;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(6px);
  border-radius: 50%;
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
  aspect-ratio: 1/1;
}

.floatingIcon i {
  transition: all 0.2s ease;
}
.floatingIcon:nth-child(1) i {
  font-size: 2rem;
}

.floatingIcon:nth-child(1) {
  top: 10%;
  left: 5%;
  animation-delay: 0s;
}

.floatingIcon:nth-child(2) i {
  font-size: 3rem;
}

.floatingIcon:nth-child(2) {
  top: 40%;
  left: 10%;
  animation-delay: 0.8s;
}

.floatingIcon:nth-child(3) i {
  font-size: 1.6rem;
}

.floatingIcon:nth-child(3) {
  bottom: 15%;
  left: 8%;
  animation-delay: 1.7s;
}

.floatingIcon:nth-child(4) i {
  font-size: 2.4rem;
}

.floatingIcon:nth-child(4) {
  top: 20%;
  right: 8%;
  animation-delay: 0.2s;
}

.floatingIcon:nth-child(5) i {
  font-size: 2rem;
}

.floatingIcon:nth-child(5) {
  top: 50%;
  right: 12%;
  animation-delay: 0.8s;
}

.floatingIcon:nth-child(6) i {
  font-size: 3rem;
}

.floatingIcon:nth-child(6) {
  bottom: 10%;
  right: 5%;
  animation-delay: 1.7s;
}

/* ===================================== */
/*             huongdan.html             */
/* ===================================== */

main .guide {
  background: var(--bs-color-card);
  border-radius: 20px;
  color: var(--color-text-card);
}

.guide .guide__outline {
  border: 1px solid var(--color-border-card-blue);
  border-radius: 10px;
}

.guide .outline__title {
  background: var(--bs-result-gradient);
  color: var(--white);
  font-size: 0.9rem;
  border-radius: 10px 10px 0 0;
}

ul.outline__content {
  color: var(--gray);
  border-radius: 0 0 10px 10px;
  background: var(--bs-color-bg);
}

.outline__content li {
  border-right: 4px solid transparent;
  padding-right: 4px;
}

.outline__content li i {
  font-size: 0.3rem;
}

.outline__content li a {
  height: 100%;
  width: 100%;
  font-size: 0.8rem;
}

.outline__content li:hover {
  color: var(--color-text-card);
  transform: translateX(5px);
  background: var(--bs-section-faq-bg);
  border-right: 4px solid var(--secondary);
  box-shadow: var(--bs-box-shadow);
}

.outline__content .active {
  color: var(--color-text-card);
  background: var(--bs-section-hiw-bg);
  border-right: 4px solid var(--secondary);
}

/* main content */

.guide__container {
  background: var(--bs-color-bg);
  border-radius: 20px;
}

.guide__content .guide__title-primary {
  position: relative;
}

.hightlight-box {
  border: 2px solid var(--color-border-card-blue);
  border-radius: 15px;
  background: var(--bg-hightlight-alpha);
}

.guide__box .box__item {
  border-radius: 8px;
  border-left: 4px solid var(--secondary);
  background: var(--bs-color-card);
}

.guide__title {
  font-weight: 600;
  position: relative;
}

.box__item > i {
  color: var(--secondary);
}

.box__item a {
  font-style: italic;
  font-weight: unset !important;
  color: var(--secondary);
}

.guide-step__container .guide-step__number {
  width: 30px;
  height: 30px;
  background: var(--secondary);
  border-radius: 50%;
  color: var(--color-text);
}

.guide-step__container .guide-step__title {
  font-weight: 600;
}

/* ===================================== */
/*               lienhe.html             */
/* ===================================== */
main:has(.contact-card) {
  background: var(--bs-geometric-bg);
  background-size: var(--bs-geometric-bg-size);
}

.contact-card {
  background: var(--bs-color-card);
  border-radius: 20px;
  max-width: 1200px;
  height: 100%;
  min-height: max-content;
  box-shadow: var(--bs-box-shadow);
}

.info__container .info__img {
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--bs-box-shadow);
  cursor: pointer;
}

.info__img img {
  background: white;
  border-radius: 50%;
  overflow: hidden;
  border: 6px solid var(--secondary);
  object-fit: cover;
}

.info__container .info__img:hover {
}

.social__container {
  border-radius: 35px;
  max-width: 500px;
  overflow: hidden;
  box-shadow: var(--bs-box-shadow);
  color: var(--white);
}

.social__item {
  width: 50px;
  min-height: 100%;
  transition: all 0.35s ease;
  overflow: hidden;
}

.social__item i {
  transition: 0.1s ease;
  font-size: 1.1rem;
}

.social__item span {
  opacity: 0;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, 100%);
  width: fit-content;
}

.social__item:hover {
  width: 150px;
}

.social__item:hover i {
  opacity: 0;
  transform: translateY(100%);
}

.social__item:hover span {
  opacity: 1;
  transform: translate(-50%, -50%);
}

.facebook {
  background: #1877f2;
}

.youtube {
  background: #ff0000;
}

.gmail {
  background: #ea4335;
}

.github {
  background: #211f1f;
}

/* ===================================== */
/*               gpa.html             */
/* ===================================== */

main:has(div.gpa) > div > div {
  border-radius: 15px;
  background: var(--bs-color-card);
  padding: 1rem;
  color: var(--color-text-card);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

/* gpa__input */

.gpa__input {
  /* width: 100%; */
}

textarea#raw-input {
  width: 100%;
  min-height: 200px;
  padding: 8px;
  border: 2px solid var(--color-border);
  border-radius: 10px;
  outline: none;
  background: var(--bs-color-input-bg);
  color: var(--color-text-card);
  scrollbar-width: thin;
}

textarea#raw-input::-webkit-scrollbar {
  width: 10px;
}

textarea#raw-input::-webkit-resizer {
}

textarea#raw-input:focus {
  border-color: var(--color-border-hover);
}

textarea#raw-input:focus::-webkit-resizer {
}

.gpa__button {
  padding: 10px 16px;
}

.gpa__button#clearBtn {
  background: var(--gray);
  color: #333;
  padding: 10px 24px;
}

/* gpa__result */
.gpa__result-content > div > * {
  margin-bottom: 8px;
}

.gpa__result table {
  text-indent: 0;
  border-color: inherit;
  border-collapse: collapse;
  width: 100%;
}

.gpa__result th,
.gpa__result td {
  border: 1px solid var(--color-border);
  padding: 4px 6px;
  text-align: center;
}

.gpa__result tr {
  transition: 0.1 ease;
}

.gpa__result tr:hover {
  background: var(--bs-tr-hover-bg);
}

.table__tenhp {
  text-align: left !important;
}

/* gpa__prediction */
.gpa__prediction {
  position: relative;
  margin-top: 10px;
}

.back-to-top-btn {
  width: 40px;
  height: 40px;
  padding: 0.5rem;
  border-radius: 50%;
  position: absolute;
  transform: translate(-50%, 100%);
  top: -55px;
  left: 50%;
}

.gpa__prediction .form__select,
.gpa__prediction .form__input {
  display: inline;
  width: fit-content;
}

.gpa__prediction-input {
  padding: 10px 16px;
  background: var(--bs-color-input-bg);
  border: 2px solid var(--color-border);
  border-radius: 10px;
  outline: none;
}

.gpa__prediction-input:focus {
  border-color: var(--color-border-hover);
}

/* #prediction-goal-container{
  display: none;
} */

.gpa__prediction-samples {
  border-radius: 10px;
  background: var(--bs-result-gradient);
  color: var(--white);
  display: none;
}

.gpa__prediction-samples .samples-container,
.gpa_prediction-output {
  border-radius: 10px;
  background: var(--bg-hightlight-alpha);
  border: 2px solid var(--color-border-card-blue);
}
/* ===================================== */

#toast-box {
  position: fixed;
  bottom: 30px;
  right: 10px;
  display: flex;
  align-items: flex-end;
  flex-direction: column;
  overflow: hidden;
  padding: 20px;
  height: fit-content;
  z-index: 10;
}

.toast {
  width: 400px;
  height: 80px;
  min-height: fit-content;
  background: var(--bs-color-card);
  font-weight: 500;
  margin: 15px 0;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  position: relative;
  transform: translateX(100%);
  animation: moveleft 0.5s linear forwards;
  color: var(--color-text-card);
  cursor: pointer;
}

.toast i {
  margin: 0 20px;
  font-size: 1.8rem;
  color: var(--color-success-msg);
}

.toast.error i {
  color: var(--color-error-msg);
}

.toast.invalid i {
  color: var(--color-invalid-msg);
}

.toast::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 5px;
  background-color: var(--color-success-msg);
  animation: anim 5s linear forwards;
}

.toast.error::after {
  background-color: var(--color-error-msg);
}

.toast.invalid::after {
  background-color: var(--color-invalid-msg);
}

.loader {
  width: 40px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 6px solid #0000;
  border-right-color: #00afefad;
  position: relative;
  animation: l24 1s infinite linear;
}

.loader:before,
.loader:after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: inherit;
  animation: inherit;
  animation-duration: 2s;
}

.loader:after {
  animation-duration: 4s;
}

@keyframes l24 {
  100% {
    transform: rotate(1turn);
  }
}