/*-----------------------------------*\
  #style.css
\*-----------------------------------*/


/**
 * copyright 2022 @codewithsadee
 */





/*-----------------------------------*\
  #CUSTOM PROPERTY
\*-----------------------------------*/

:root {
  color-scheme: dark;

  /**
   * colors
   */

  /* gradient */

  --bg-gradient-onyx: linear-gradient(
    135deg,
    hsla(184, 78%, 34%, 0.72) 0%,
    hsla(251, 58%, 42%, 0.34) 100%
  );
  --bg-gradient-jet: linear-gradient(
    135deg,
    hsla(174, 84%, 43%, 0.32) 0%,
    hsla(249, 64%, 35%, 0.22) 100%
  ), hsla(222, 32%, 10%, 0.64);
  --bg-gradient-yellow-1: linear-gradient(
    to bottom right,
    hsl(171, 86%, 48%) 0%,
    hsla(171, 86%, 48%, 0) 50%
  );
  --bg-gradient-yellow-2: linear-gradient(
    135deg,
    hsla(171, 86%, 48%, 0.24) 0%,
    hsla(171, 86%, 48%, 0) 59.86%
  ), hsla(220, 24%, 12%, 0.72);
  --border-gradient-onyx: linear-gradient(
    135deg,
    hsla(0, 0%, 100%, 0.22) 0%,
    hsla(0, 0%, 100%, 0.06) 48%,
    hsla(171, 86%, 48%, 0.16) 100%
  );
  --text-gradient-yellow: linear-gradient(
    to right,
    hsl(174, 58%, 54%),
    hsl(264, 42%, 64%)
  );

  /* solid */

  --jet: hsla(220, 20%, 78%, 0.18);
  --onyx: hsla(220, 24%, 18%, 0.78);
  --eerie-black-1: hsla(220, 24%, 13%, 0.72);
  --eerie-black-2: hsla(220, 26%, 10%, 0.62);
  --smoky-black: hsl(226, 46%, 6%);
  --white-1: hsl(0, 0%, 100%);
  --white-2: hsl(0, 0%, 98%);
  --orange-yellow-crayola: hsl(174, 58%, 54%);
  --vegas-gold: hsl(190, 58%, 62%);
  --light-gray: hsl(220, 24%, 88%);
  --light-gray-70: hsla(220, 24%, 88%, 0.7);
  --bittersweet-shimmer: hsl(0, 43%, 51%);

  /**
   * typography
   */

  /* font-family */
  --ff-poppins: 'Poppins', sans-serif;

  /* font-size */
  --fs-1: 24px;
  --fs-2: 18px;
  --fs-3: 17px;
  --fs-4: 16px;
  --fs-5: 15px;
  --fs-6: 14px;
  --fs-7: 13px;
  --fs-8: 11px;

  /* font-weight */
  --fw-300: 300;
  --fw-400: 400;
  --fw-500: 500;
  --fw-600: 600;

  /**
   * shadow
   */
  
  --page-gradient: radial-gradient(circle at 10% 86%, hsla(270, 42%, 50%, 0.34), transparent 30rem),
    radial-gradient(circle at 92% 8%, hsla(174, 58%, 48%, 0.26), transparent 30rem),
    linear-gradient(135deg, hsl(238, 36%, 19%) 0%, hsl(213, 48%, 17%) 46%, hsl(178, 38%, 15%) 100%);
  --glass-bg: hsla(226, 38%, 8%, 0.64);
  --glass-bg-strong: hsla(226, 38%, 8%, 0.78);
  --glass-border: hsla(0, 0%, 100%, 0.13);
  --glass-highlight: hsla(0, 0%, 100%, 0.06);
  --glass-blur: 18px;

  --shadow-1: 0 16px 40px hsla(222, 50%, 4%, 0.28);
  --shadow-2: 0 18px 44px hsla(222, 50%, 4%, 0.24);
  --shadow-3: 0 18px 54px hsla(222, 50%, 4%, 0.26);
  --shadow-4: 0 24px 70px hsla(222, 50%, 4%, 0.22);
  --shadow-5: 0 30px 90px hsla(222, 50%, 4%, 0.3);

  /**
   * transition — shared UI/theme timing (fast)
   */

  --transition-1: 0.14s ease;
  --transition-2: 0.38s ease-in-out;

  scrollbar-width: thin;
  scrollbar-color: hsla(0, 0%, 100%, 0.22) transparent;
}

:root[data-theme="light"] {
  color-scheme: light;

  --bg-gradient-onyx: linear-gradient(
    135deg,
    hsla(0, 0%, 100%, 0.74) 0%,
    hsla(176, 80%, 92%, 0.5) 100%
  );
  --bg-gradient-jet: linear-gradient(
    135deg,
    hsla(0, 0%, 100%, 0.66) 0%,
    hsla(176, 80%, 93%, 0.4) 100%
  ), hsla(0, 0%, 100%, 0.66);
  --bg-gradient-yellow-1: linear-gradient(
    to bottom right,
    hsl(174, 52%, 42%) 0%,
    hsla(174, 52%, 42%, 0) 50%
  );
  --bg-gradient-yellow-2: linear-gradient(
    135deg,
    hsla(174, 52%, 42%, 0.1) 0%,
    hsla(174, 52%, 42%, 0) 59.86%
  ), hsla(0, 0%, 100%, 0.68);
  --border-gradient-onyx: linear-gradient(
    135deg,
    hsla(0, 0%, 100%, 0.96) 0%,
    hsla(174, 52%, 66%, 0.2) 100%
  );
  --text-gradient-yellow: linear-gradient(
    to right,
    hsl(174, 48%, 38%),
    hsl(264, 38%, 58%)
  );

  --jet: hsla(220, 28%, 72%, 0.36);
  --onyx: hsla(220, 40%, 96%, 0.72);
  --eerie-black-1: hsla(0, 0%, 100%, 0.78);
  --eerie-black-2: hsla(220, 50%, 98%, 0.72);
  --smoky-black: hsl(220, 50%, 96%);
  --white-1: hsl(220, 25%, 12%);
  --white-2: hsl(220, 22%, 16%);
  --orange-yellow-crayola: hsl(174, 48%, 38%);
  --vegas-gold: hsl(195, 52%, 46%);
  --light-gray: hsl(220, 14%, 25%);
  --light-gray-70: hsla(220, 14%, 25%, 0.72);
  --bittersweet-shimmer: hsl(0, 50%, 45%);

  --page-gradient: radial-gradient(circle at 10% 88%, hsla(270, 42%, 64%, 0.2), transparent 34rem),
    radial-gradient(circle at 90% 10%, hsla(160, 48%, 58%, 0.22), transparent 34rem),
    linear-gradient(135deg, hsl(250, 42%, 96%) 0%, hsl(204, 62%, 92%) 42%, hsl(160, 48%, 88%) 100%);
  --glass-bg: hsla(0, 0%, 100%, 0.56);
  --glass-bg-strong: hsla(0, 0%, 100%, 0.74);
  --glass-border: hsla(190, 42%, 36%, 0.16);
  --glass-highlight: hsla(0, 0%, 100%, 0.86);
  --glass-blur: 18px;

  --shadow-1: 0 16px 40px hsla(220, 35%, 45%, 0.12);
  --shadow-2: 0 18px 44px hsla(220, 35%, 45%, 0.12);
  --shadow-3: 0 18px 54px hsla(220, 35%, 45%, 0.14);
  --shadow-4: 0 24px 70px hsla(220, 35%, 45%, 0.12);
  --shadow-5: 0 30px 90px hsla(220, 35%, 45%, 0.16);

  scrollbar-color: hsla(220, 14%, 28%, 0.42) transparent;
}





/*-----------------------------------*\
  #RESET
\*-----------------------------------*/

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

a { text-decoration: none; }

li { list-style: none; }

img, ion-icon, a, button, time, span { display: block; }

button {
  font: inherit;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
}

input, textarea {
  display: block;
  width: 100%;
  background: none;
  font: inherit;
}

::selection {
  background: var(--orange-yellow-crayola);
  color: var(--smoky-black);
}

:focus { outline-color: var(--orange-yellow-crayola); }

html {
  font-family: var(--ff-poppins);
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-gutter: auto;
}

/* Overlay scrollbar (no layout gutter) where supported — Chromium/WebKit/Safari */
html {
  overflow-y: overlay;
}

body {
  position: relative;
  background: var(--page-gradient);
  background-attachment: fixed;
  min-height: 100vh;
  transition: background var(--transition-1);
}

body::before {
  content: "";
  position: fixed;
  inset: -24%;
  background:
    radial-gradient(ellipse 34rem 24rem at 12% 78%, hsla(270, 44%, 62%, 0.14), transparent 72%),
    radial-gradient(ellipse 28rem 38rem at 88% 14%, hsla(171, 54%, 54%, 0.14), transparent 70%),
    radial-gradient(ellipse 18rem 30rem at 58% 108%, hsla(205, 52%, 62%, 0.09), transparent 74%),
    radial-gradient(ellipse 24rem 16rem at 42% 30%, hsla(292, 42%, 64%, 0.07), transparent 78%);
  filter: blur(12px);
  opacity: 0.62;
  pointer-events: none;
  z-index: -1;
  animation: backgroundBreath 34s ease-in-out infinite alternate;
}

@keyframes backgroundBreath {
  0% {
    transform: scale(1) translate3d(-1%, 1%, 0) rotate(0deg);
    filter: hue-rotate(0deg) blur(12px);
    border-radius: 42% 58% 64% 36% / 48% 42% 58% 52%;
  }

  45% {
    transform: scale(1.05) translate3d(1.5%, -1%, 0) rotate(1.5deg);
    filter: hue-rotate(8deg) blur(13px);
    border-radius: 58% 42% 44% 56% / 44% 58% 42% 56%;
  }

  100% {
    transform: scale(1.1) translate3d(2.5%, -2%, 0) rotate(-1deg);
    filter: hue-rotate(16deg) blur(14px);
    border-radius: 36% 64% 52% 48% / 60% 38% 62% 40%;
  }
}

@media (prefers-reduced-motion: reduce) {
  body::before { animation: none; }

  :root {
    --transition-1: 1ms;
    --transition-2: 1ms;
  }
}





/*-----------------------------------*\
  #REUSED STYLE
\*-----------------------------------*/

.sidebar,
article {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 15px;
  box-shadow: var(--shadow-1);
  backdrop-filter: saturate(180%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(180%) blur(var(--glass-blur));
  z-index: 1;
  transition:
    background var(--transition-1),
    border-color var(--transition-1),
    box-shadow var(--transition-1);
}

.separator {
  width: 100%;
  height: 1px;
  background: var(--jet);
  margin: 16px 0;
  transition: background var(--transition-1);
}

.icon-box {
  position: relative;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  width: 30px;
  height: 30px;
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 16px;
  color: var(--orange-yellow-crayola);
  box-shadow: none;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1;
  transition:
    background var(--transition-1),
    border-color var(--transition-1),
    color var(--transition-1),
    box-shadow var(--transition-1);
}

.icon-box::before {
  content: "";
  position: absolute;
  inset: 1px;
  background: transparent;
  border-radius: inherit;
  z-index: -1;
}

.icon-box ion-icon { --ionicon-stroke-width: 35px; }

article { display: none; }

article.active {
  display: block;
  animation: fade 0.38s ease backwards;
}

@keyframes fade {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

.h2,
.h3,
.h4,
.h5 {
  color: var(--white-2);
  text-transform: none;
  transition: color var(--transition-1);
}

.h2 { font-size: var(--fs-1); }

.h3 { font-size: var(--fs-2); }

.h4 { font-size: var(--fs-4); }

.h5 {
  font-size: var(--fs-7);
  font-weight: var(--fw-500);
}

.article-title {
  position: relative;
  padding-bottom: 7px;
}

.article-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 3px;
  background: var(--text-gradient-yellow);
  border-radius: 3px;
}

.greeting-title {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  cursor: pointer;
  transition: color var(--transition-1);
}

/* Split-text chars — inspired by https://reactbits.dev/text-animations/split-text */
.greeting-char {
  display: inline-block;
  opacity: 0;
  transform: translate3d(0, 0.4em, 0) rotate(-5deg);
  will-change: opacity, transform;
}

.greeting-char--in {
  animation: greetingCharReveal cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes greetingCharReveal {
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
}

@media (prefers-reduced-motion: reduce) {

  .greeting-char,
  .greeting-char--in {
    animation: none;
    opacity: 1;
    transform: none;
  }

}

.greeting-title:hover,
.greeting-title:focus-visible {
  color: var(--orange-yellow-crayola);
  outline: none;
}

.has-scrollbar::-webkit-scrollbar {
  width: 5px; /* for vertical scrollbar */
  height: 5px; /* for horizontal scrollbar */
}

.has-scrollbar::-webkit-scrollbar-track {
  background: var(--onyx);
  border-radius: 5px;
}

.has-scrollbar::-webkit-scrollbar-thumb {
  background: var(--orange-yellow-crayola);
  border-radius: 5px;
}

.has-scrollbar::-webkit-scrollbar-button { width: 20px; }

.content-card {
  position: relative;
  background: var(--border-gradient-onyx);
  padding: 15px;
  padding-top: 45px;
  border-radius: 14px;
  box-shadow: var(--shadow-2);
  cursor: pointer;
  z-index: 1;
  transition:
    background var(--transition-1),
    box-shadow var(--transition-1);
}

.content-card::before {
  content: "";
  position: absolute;
  inset: 1px;
  background: var(--bg-gradient-jet);
  border-radius: inherit;
  z-index: -1;
  transition: background var(--transition-1);
}





/*-----------------------------------*\
  #MAIN
\*-----------------------------------*/

main {
  margin: 15px 12px;
  margin-bottom: 75px;
  min-width: 259px;
}





/*-----------------------------------*\
  #SIDEBAR
\*-----------------------------------*/

.sidebar {
  --sidebar-fold-height: 174px;
  --sidebar-pad-top: 15px;
  --sidebar-info-block: 104px;
  --sidebar-social-block: 18px;
  --sidebar-fold-gap: calc(
    (var(--sidebar-fold-height) - var(--sidebar-pad-top) - var(--sidebar-info-block) - var(--sidebar-social-block)) / 2
  );

  margin-bottom: 15px;
  height: var(--sidebar-fold-height);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding-bottom: var(--sidebar-fold-gap);
  transition:
    height var(--transition-2),
    padding-bottom var(--transition-2),
    background var(--transition-1),
    border-color var(--transition-1),
    box-shadow var(--transition-1);
}

.sidebar.active {
  height: 360px;
  padding-bottom: 15px;
}

.sidebar-info {
  position: relative;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 15px;
}

.avatar-box {
  background: transparent;
  border-radius: 22px;
  overflow: hidden;
}

.avatar-box img {
  width: 104px;
  height: auto;
  display: block;
  border-radius: 22px;
  filter: drop-shadow(0 8px 18px hsla(0, 0%, 0%, 0.18));
}

.info-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.info-content .name {
  color: var(--white-2);
  font-size: var(--fs-3);
  font-weight: var(--fw-500);
  letter-spacing: -0.25px;
  margin-bottom: 10px;
  width: 100%;
  text-align: center;
  transition: color var(--transition-1);
}

.info-content .title {
  color: var(--white-1);
  background: var(--onyx);
  font-size: var(--fs-8);
  font-weight: var(--fw-300);
  width: max-content;
  padding: 3px 12px;
  border-radius: 8px;
  transition:
    color var(--transition-1),
    background var(--transition-1);
}

.info_more-btn {
  display: none;
  position: absolute;
  top: -15px;
  right: -15px;
  border-radius: 0 15px;
  font-size: 13px;
  color: var(--orange-yellow-crayola);
  background: var(--border-gradient-onyx);
  padding: 10px;
  box-shadow: var(--shadow-2);
  transition:
    color var(--transition-1),
    background var(--transition-1),
    box-shadow var(--transition-1);
  z-index: 1;
}

.info_more-btn::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: var(--bg-gradient-jet);
  transition: background var(--transition-1);
  z-index: -1;
}

.info_more-btn:hover,
.info_more-btn:focus { background: var(--bg-gradient-yellow-1); }

.info_more-btn:hover::before,
.info_more-btn:focus::before { background: var(--bg-gradient-yellow-2); }

.info_more-btn span { display: none; }

.sidebar-info_more {
  margin-top: var(--sidebar-fold-gap);
  opacity: 1;
  visibility: visible;
  transition:
    margin-top var(--transition-2),
    opacity var(--transition-1),
    visibility var(--transition-1);
}

.sidebar.active .sidebar-info_more { margin-top: 0; }

.sidebar-info_more .separator,
.contacts-list {
  max-height: 0;
  margin-top: 0;
  margin-bottom: 0;
  opacity: 0;
  overflow: hidden;
  visibility: hidden;
  transition:
    max-height var(--transition-2),
    margin var(--transition-1),
    opacity var(--transition-1),
    visibility var(--transition-1);
}

.sidebar.active .sidebar-info_more .separator {
  max-height: 1px;
  margin: 16px 0;
  opacity: 1;
  visibility: visible;
}

.sidebar.active .contacts-list {
  max-height: 180px;
  opacity: 1;
  visibility: visible;
}

.contacts-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.contact-item {
  min-width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-info {
  max-width: calc(100% - 46px);
  width: calc(100% - 46px);
}

.contact-title {
  color: var(--light-gray-70);
  font-size: var(--fs-8);
  text-transform: none;
  margin-bottom: 2px;
  transition: color var(--transition-1);
}

.contact-info :is(.contact-link, time, address) {
  color: var(--white-2);
  font-size: var(--fs-7);
  transition: color var(--transition-1);
}

.contact-info address { font-style: normal; }

.social-list {
  --social-icon-size: 18px;

  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  min-height: var(--social-icon-size);
  padding: 0;
  margin: 0;
}

.social-item {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.social-item .social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--social-icon-size);
  height: var(--social-icon-size);
  color: var(--light-gray-70);
  font-size: var(--social-icon-size);
  line-height: 0;
  transition: color var(--transition-1);
}

.social-item .social-link ion-icon {
  flex-shrink: 0;
  width: var(--social-icon-size);
  height: var(--social-icon-size);
}


.social-item .social-link:hover { color: var(--light-gray); }

.social-svg-icon {
  display: block;
  width: var(--social-icon-size);
  height: var(--social-icon-size);
  flex-shrink: 0;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-right: 10px;
  color: var(--orange-yellow-crayola);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  padding: 0;
  box-shadow: none;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  z-index: 1;
  transition:
    background var(--transition-1),
    border-color var(--transition-1),
    color var(--transition-1),
    box-shadow var(--transition-1);
}

.theme-toggle::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: transparent;
  z-index: -1;
  transition: background var(--transition-1);
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--white-2);
}

.theme-toggle span {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.theme-toggle ion-icon { font-size: 18px; }





/*-----------------------------------*\
  #NAVBAR
\*-----------------------------------*/

.navbar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--glass-bg-strong);
  backdrop-filter: saturate(180%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(180%) blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: 12px 12px 0 0;
  box-shadow: var(--shadow-2);
  z-index: 5;
  transition:
    background var(--transition-1),
    border-color var(--transition-1),
    box-shadow var(--transition-1);
}

.navbar-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  padding: 0 10px;
}

.navbar-link {
  color: var(--light-gray);
  font-size: var(--fs-8);
  padding: 20px 7px;
  transition: color var(--transition-1);
}

.navbar-link:hover,
.navbar-link:focus { color: var(--light-gray-70); }

.navbar-link.active { color: var(--orange-yellow-crayola); }





/*-----------------------------------*\
  #ABOUT
\*-----------------------------------*/

.about .article-title { margin-bottom: 15px; }

.about-text {
  color: var(--light-gray);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  line-height: 1.6;
  transition: color var(--transition-1);
}

.about-text p { margin-bottom: 15px; }

/* Inline prose links — readable defaults, accent underline, clear hover/focus */
.about-text a,
.timeline-text a,
.service-item-text a {
  display: inline;
  color: inherit;
  font-weight: var(--fw-500);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  text-decoration-skip-ink: auto;
  text-decoration-color: var(--orange-yellow-crayola);
  transition:
    color var(--transition-1),
    text-decoration-color var(--transition-1),
    text-decoration-thickness var(--transition-1);
}

.about-text a:hover,
.timeline-text a:hover,
.service-item-text a:hover {
  color: var(--orange-yellow-crayola);
  text-decoration-color: color-mix(in srgb, var(--vegas-gold) 75%, var(--orange-yellow-crayola));
  text-decoration-thickness: 1.5px;
}

.about-text a:focus-visible,
.timeline-text a:focus-visible,
.service-item-text a:focus-visible {
  outline: 2px solid var(--orange-yellow-crayola);
  outline-offset: 3px;
  border-radius: 3px;
  color: var(--orange-yellow-crayola);
  text-decoration-color: currentColor;
}

.greeting-title [data-greeting-text] {
  display: inline;
}



/**
 * #service 
 */

.service { margin-bottom: 35px; }

.service-title { margin-bottom: 20px; }

.service-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.service-item {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 20px;
  border-radius: 18px;
  box-shadow: none;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 1;
  transition:
    background var(--transition-1),
    border-color var(--transition-1),
    box-shadow var(--transition-1);
}

.service-item::before {
  content: "";
  position: absolute;
  inset: 1px;
  background: linear-gradient(135deg, var(--glass-highlight), transparent 58%);
  border-radius: inherit;
  z-index: -1;
  transition: background var(--transition-1);
}

.service-icon-box { margin-bottom: 10px; }

.service-icon-box img { margin: auto; }

.service-content-box { text-align: center; }

.service-item-title { margin-bottom: 7px; }

.service-item-text {
  color: var(--light-gray);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  line-height: 1.6;
  transition: color var(--transition-1);
}

/* About — research pillars: icon left, title + blurb right */
.about .service-list.research-interests {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.about .research-interests .service-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  text-align: left;
}

.about .research-interests .service-icon-box {
  flex-shrink: 0;
  margin-bottom: 0;
  margin-top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about .research-interests .service-content-box {
  flex: 1;
  min-width: 0;
  text-align: left;
}

.about .research-interests .service-item-title {
  margin-bottom: 6px;
  font-size: var(--fs-6);
  font-weight: var(--fw-600);
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--orange-yellow-crayola);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {

  .about .research-interests .service-item-title {
    background-image: var(--text-gradient-yellow);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
  }

}

.about .research-interests .service-item-text {
  margin-bottom: 0;
  font-size: var(--fs-7);
  line-height: 1.55;
}

.about .research-interests .service-icon-box img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
}

:root[data-theme="dark"] .about .research-interests .service-icon-box img {
  filter: invert(1) brightness(1.06);
  opacity: 0.92;
}

@media (min-width: 680px) {

  .about .service-list.research-interests {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    align-items: stretch;
  }

}


/**
 * #testimonials 
 */

.testimonials { margin-bottom: 30px; }

.testimonials-title { margin-bottom: 20px; }

.testimonials-list {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  gap: 15px;
  margin: 0 -15px;
  padding: 25px 15px;
  padding-bottom: 35px;
  overflow-x: auto;
  scroll-behavior: smooth;
  overscroll-behavior-inline: contain;
  scroll-snap-type: inline mandatory;
}

.testimonials-item {
  min-width: 100%;
  scroll-snap-align: center;
}

.testimonials-avatar-box {
  position: absolute;
  top: 0;
  left: 0;
  transform: translate(15px, -25px);
  background: var(--bg-gradient-onyx);
  border-radius: 14px;
  box-shadow: var(--shadow-1);
}

.testimonials-item-title { margin-bottom: 7px; }

.testimonials-text {
  color: var(--light-gray);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  line-height: 1.6;
  display: -webkit-box;
  line-clamp: 4;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-1);
}


/**
 * #testimonials-modal
 */

.modal-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-y: auto;
  overscroll-behavior: contain;
  z-index: 20;
  pointer-events: none;
  visibility: hidden;
}

.modal-container::-webkit-scrollbar { display: none; }

.modal-container.active {
  pointer-events: all;
  visibility: visible;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: hsl(0, 0%, 5%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: 1;
  transition:
    opacity var(--transition-1),
    visibility var(--transition-1),
    background var(--transition-1);
}

.overlay.active {
  opacity: 0.8;
  visibility: visible;
  pointer-events: all;
}

.testimonials-modal {
  background: var(--eerie-black-2);
  position: relative;
  padding: 15px;
  margin: 15px 12px;
  border: 1px solid var(--jet);
  border-radius: 14px;
  box-shadow: var(--shadow-5);
  transform: scale(1.2);
  opacity: 0;
  transition:
    transform var(--transition-1),
    opacity var(--transition-1),
    background var(--transition-1),
    border-color var(--transition-1),
    box-shadow var(--transition-1);
  z-index: 2;
}

.modal-container.active .testimonials-modal {
  transform: scale(1);
  opacity: 1;
}

.modal-close-btn {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--onyx);
  border-radius: 8px;
  width: 32px;
  height: 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--white-2);
  font-size: 18px;
  opacity: 0.7;
  transition:
    opacity var(--transition-1),
    background var(--transition-1),
    color var(--transition-1);
}

.modal-close-btn:hover,
.modal-close-btn:focus { opacity: 1; }

.modal-close-btn ion-icon { --ionicon-stroke-width: 50px; }

.modal-avatar-box {
  background: var(--bg-gradient-onyx);
  width: max-content;
  border-radius: 14px;
  margin-bottom: 15px;
  box-shadow: var(--shadow-2);
}

.modal-img-wrapper > img { display: none; }

.modal-title { margin-bottom: 4px; }

.modal-content time {
  font-size: var(--fs-6);
  color: var(--light-gray-70);
  font-weight: var(--fw-300);
  margin-bottom: 10px;
}

.modal-content p {
  color: var(--light-gray);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  line-height: 1.6;
}


/**
 * #clients 
 */

.clients { margin-bottom: 15px; }

.clients-list {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  gap: 15px;
  margin: 0 -15px;
  padding: 25px;
  padding-bottom: 25px;
  overflow-x: auto;
  scroll-behavior: smooth;
  overscroll-behavior-inline: contain;
  scroll-snap-type: inline mandatory;
  scroll-padding-inline: 25px;
}

.clients-item {
  min-width: 50%;
  scroll-snap-align: start;
}

.clients-item img {
  width: 100%;
  filter: grayscale(1);
  transition: filter var(--transition-1);
}

.clients-item img:hover { filter: grayscale(0); }





/*-----------------------------------*\
  #RESUME
\*-----------------------------------*/

.article-title { margin-bottom: 30px; }


/**
 * education and experience 
 */

.timeline { margin-bottom: 30px; }

.timeline .title-wrapper {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 25px;
}

.timeline-list {
  font-size: var(--fs-6);
  margin-left: 45px;
}

.timeline-item { position: relative; }

.timeline-item:not(:last-child) { margin-bottom: 20px; }

.timeline-item-title {
  font-size: var(--fs-6);
  line-height: 1.3;
  margin-bottom: 7px;
  transition: color var(--transition-1);
}

.education-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  align-items: start;
  gap: 14px;
}

.education-logo {
  width: 56px;
  height: 56px;
  object-fit: contain;
  align-self: start;
  border-radius: 12px;
}

.education-details { min-width: 0; }

.entry-summary {
  color: var(--light-gray);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  line-height: 1.6;
  margin-bottom: 0;
}

.entry-details .timeline-bullets {
  margin-top: 10px;
}

.entry-details[hidden] {
  display: none;
}

.entry-description__toggle {
  display: inline-block;
  margin-top: 8px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--vegas-gold);
  font-family: var(--ff-poppins);
  font-size: var(--fs-7);
  font-weight: var(--fw-500);
  line-height: 1.4;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-1);
}

.entry-description__toggle:hover {
  color: var(--orange-yellow-crayola);
}

.entry-description__toggle:focus-visible {
  outline: 2px solid var(--orange-yellow-crayola);
  outline-offset: 3px;
  border-radius: 4px;
}

.entry-description__toggle[hidden] {
  display: none;
}

.timeline-list span {
  color: var(--vegas-gold);
  font-weight: var(--fw-400);
  line-height: 1.6;
  transition: color var(--transition-1);
}

.timeline-item:not(:last-child)::before {
  content: "";
  position: absolute;
  top: -25px;
  left: -30px;
  width: 1px;
  height: calc(100% + 50px);
  background: var(--jet);
  transition: background var(--transition-1);
}

.timeline-item::after {
  content: "";
  position: absolute;
  top: 5px;
  left: -33px;
  height: 6px;
  width: 6px;
  background: var(--text-gradient-yellow);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--jet);
  transition:
    background var(--transition-1),
    box-shadow var(--transition-1);
}

.timeline-text {
  color: var(--light-gray);
  font-weight: var(--fw-300);
  line-height: 1.6;
  transition: color var(--transition-1);
}

.timeline-bullets {
  margin-top: 10px;
  padding-left: 1.15em;
  list-style: disc;
}

.timeline-bullets li {
  color: var(--light-gray);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  line-height: 1.6;
}

.timeline-bullets li + li {
  margin-top: 8px;
}


/**
 * skills 
 */

.skills-title { margin-bottom: 20px; }

.academic-services-card {
  padding: 20px;
}

.academic-services-card .timeline-item-title {
  margin-bottom: 8px;
}

.academic-services-card .timeline-text {
  margin-bottom: 0;
}

.skills-list { padding: 20px; }


.skills-item:not(:last-child) { margin-bottom: 15px; }

.skill .title-wrapper {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 8px;
}

.skill .title-wrapper data {
  color: var(--light-gray);
  font-size: var(--fs-7);
  font-weight: var(--fw-300);
  transition: color var(--transition-1);
}

.skill-progress-bg {
  background: var(--jet);
  width: 100%;
  height: 8px;
  border-radius: 10px;
  transition: background var(--transition-1);
}

.skill-progress-fill {
  background: var(--text-gradient-yellow);
  height: 100%;
  border-radius: inherit;
}





/*-----------------------------------*\
  #PORTFOLIO
\*-----------------------------------*/

.filter-list { display: none; }

.filter-select-box {
  position: relative;
  margin-bottom: 25px;
}

.filter-select {
  background: var(--eerie-black-2);
  color: var(--light-gray);
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--jet);
  border-radius: 14px;
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  transition:
    background var(--transition-1),
    border-color var(--transition-1),
    color var(--transition-1);
}

.filter-select.active .select-icon { transform: rotate(0.5turn); }

.select-list {
  background: var(--eerie-black-2);
  position: absolute;
  top: calc(100% + 6px);
  width: 100%;
  padding: 6px;
  border: 1px solid var(--jet);
  border-radius: 14px;
  z-index: 2;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--transition-1),
    visibility var(--transition-1),
    background var(--transition-1),
    border-color var(--transition-1);
}

.filter-select.active + .select-list {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
}

.select-item button {
  background: var(--eerie-black-2);
  color: var(--light-gray);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  text-transform: none;
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  transition:
    background var(--transition-1),
    color var(--transition-1);
}

.select-item button:hover { --eerie-black-2: hsl(240, 2%, 20%); }

.project-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 10px;
}

.project-item { display: none; }

.project-item.active {
  display: block;
  animation: scaleUp 0.25s ease forwards;
}

@keyframes scaleUp {
  0% { transform: scale(0.5); }
  100% { transform: scale(1); }
}

.project-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 22px;
  box-shadow: none;
  backdrop-filter: saturate(160%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(160%) blur(var(--glass-blur));
  position: relative;
  z-index: 1;
  transition:
    transform var(--transition-1),
    box-shadow var(--transition-1),
    background var(--transition-1),
    border-color var(--transition-1);
}

.project-card::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--glass-highlight), transparent 52%);
  z-index: -1;
  transition: background var(--transition-1);
}

.project-card:hover,
.project-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-5);
  border-color: hsla(171, 86%, 48%, 0.36);
}

.project-card:hover::before,
.project-card:focus-within::before {
  background: linear-gradient(135deg, hsla(171, 86%, 48%, 0.18), transparent 58%);
}

.project-img {
  position: relative;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 0;
  background: hsla(0, 0%, 100%, 0.06);
  border: 1px solid var(--glass-border);
  transition:
    background-color var(--transition-1),
    border-color var(--transition-1);
}

.project-img::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  z-index: 1;
  transition: background-color var(--transition-1);
}

.project-card:hover .project-img::before,
.project-card:focus-within .project-img::before { background: transparent; }

.project-item-icon-box {
  --scale: 0.8;

  background: var(--jet);
  color: var(--orange-yellow-crayola);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(var(--scale));
  font-size: 20px;
  padding: 18px;
  border-radius: 12px;
  opacity: 0;
  z-index: 1;
  transition:
    background var(--transition-1),
    color var(--transition-1),
    opacity var(--transition-1),
    transform var(--transition-1);
}

.project-card:hover .project-item-icon-box,
.project-card:focus-within .project-item-icon-box { opacity: 0; }

.project-item-icon-box ion-icon { --ionicon-stroke-width: 50px; }

.project-img img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: inherit;
  transition: transform var(--transition-1);
}

.project-card:hover .project-img img,
.project-card:focus-within .project-img img { transform: none; }

.project-img-icon {
  display: grid;
  place-items: center;
}

.project-img-icon img {
  width: 72px;
  height: 72px;
  object-fit: contain;
}

.project-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project-title {
  color: var(--white-2);
  font-size: var(--fs-5);
  font-weight: var(--fw-500);
  line-height: 1.3;
  margin-bottom: 8px;
  transition: color var(--transition-1);
}

.project-category {
  color: var(--light-gray-70);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  margin-bottom: 10px;
  transition: color var(--transition-1);
}

.project-description {
  color: var(--light-gray);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  line-height: 1.6;
  margin-bottom: 14px;
  transition: color var(--transition-1);
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-links a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  width: max-content;
  color: var(--orange-yellow-crayola);
  font-size: var(--fs-7);
  font-weight: var(--fw-400);
  background: hsla(171, 86%, 48%, 0.12);
  border: 1px solid hsla(171, 86%, 48%, 0.34);
  border-radius: 999px;
  padding: 7px 12px;
  transition:
    color var(--transition-1),
    background var(--transition-1),
    border-color var(--transition-1);
}

.project-links a:hover,
.project-links a:focus {
  background: var(--orange-yellow-crayola);
  color: var(--smoky-black);
}

.project-links ion-icon {
  font-size: 16px;
  --ionicon-stroke-width: 40px;
}





/*-----------------------------------*\
  #BLOG
\*-----------------------------------*/

.blog-posts { margin-bottom: 10px; }

.blog-posts-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.blog-post-item > a {
  position: relative;
  background: var(--border-gradient-onyx);
  height: 100%;
  box-shadow: var(--shadow-4);
  border-radius: 16px;
  z-index: 1;
  transition: box-shadow var(--transition-1);
}

.blog-post-item > a::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: var(--eerie-black-1);
  z-index: -1;
  transition: background var(--transition-1);
}

.blog-banner-box {
  width: 100%;
  height: 200px;
  border-radius: 12px;
  overflow: hidden;
}

.blog-banner-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-1);
}

.blog-post-item > a:hover .blog-banner-box img { transform: scale(1.1); }

.blog-content { padding: 15px; }

.blog-meta {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 7px;
  margin-bottom: 10px;
}

.blog-meta :is(.blog-category, time) {
  color: var(--light-gray-70);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  transition: color var(--transition-1);
}

.blog-meta .dot {
  background: var(--light-gray-70);
  width: 4px;
  height: 4px;
  border-radius: 4px;
  transition: background var(--transition-1);
}

.blog-item-title {
  margin-bottom: 10px;
  line-height: 1.3;
  transition: color var(--transition-1);
}

.blog-post-item > a:hover .blog-item-title { color: var(--orange-yellow-crayola); }

.blog-text {
  color: var(--light-gray);
  font-size: var(--fs-6);
  font-weight: var(--fw-300);
  line-height: 1.6;
  transition: color var(--transition-1);
}





/*-----------------------------------*\
  #CONTACT
\*-----------------------------------*/

.mapbox {
  position: relative;
  height: 250px;
  width: 100%;
  border-radius: 16px;
  margin-bottom: 30px;
  border: 1px solid var(--jet);
  overflow: hidden;
  transition: border-color var(--transition-1);
}

.mapbox figure { height: 100%; }

.mapbox iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(1) invert(1);
}

.contact-form { margin-bottom: 10px; }

.form-title { margin-bottom: 20px; }

.input-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 25px;
  margin-bottom: 25px;
}

.form-input {
  color: var(--white-2);
  font-size: var(--fs-6);
  font-weight: var(--fw-400);
  padding: 13px 20px;
  border: 1px solid var(--jet);
  border-radius: 14px;
  outline: none;
  transition:
    color var(--transition-1),
    border-color var(--transition-1),
    background-color var(--transition-1);
}

.form-input::placeholder { font-weight: var(--fw-500); }

.form-input:focus { border-color: var(--orange-yellow-crayola); }

textarea.form-input {
  min-height: 100px;
  height: 120px;
  max-height: 200px;
  resize: vertical;
  margin-bottom: 25px;
}

textarea.form-input::-webkit-resizer { display: none; }

.form-input:focus:invalid { border-color: var(--bittersweet-shimmer); }

.form-btn {
  position: relative;
  width: 100%;
  background: var(--border-gradient-onyx);
  color: var(--orange-yellow-crayola);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  padding: 13px 20px;
  border-radius: 14px;
  font-size: var(--fs-6);
  text-transform: none;
  box-shadow: var(--shadow-3);
  z-index: 1;
  transition:
    color var(--transition-1),
    background var(--transition-1),
    box-shadow var(--transition-1);
}

.form-btn::before {
  content: "";
  position: absolute;
  inset: 1px;
  background: var(--bg-gradient-jet);
  border-radius: inherit;
  z-index: -1;
  transition: background var(--transition-1);
}

.form-btn ion-icon { font-size: 16px; }

.form-btn:hover { background: var(--bg-gradient-yellow-1); }

.form-btn:hover::before { background: var(--bg-gradient-yellow-2); }

.form-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.form-btn:disabled:hover { background: var(--border-gradient-onyx); }

.form-btn:disabled:hover::before { background: var(--bg-gradient-jet); }





/*-----------------------------------*\
  #RESPONSIVE
\*-----------------------------------*/

/**
 * responsive larger than 450px screen
 */

@media (min-width: 450px) {

  /**
   * client
   */

  .clients-item { min-width: calc(33.33% - 10px); }



  /**
   * #PORTFOLIO, BLOG 
   */

  .project-img,
  .blog-banner-box { height: auto; }

}





/**
 * responsive larger than 580px screen
 */

@media (min-width: 580px) {

  /**
   * CUSTOM PROPERTY
   */

  :root {

    /**
     * typography
     */

    --fs-1: 32px;
    --fs-2: 24px;
    --fs-3: 26px;
    --fs-4: 18px;
    --fs-6: 15px;
    --fs-7: 15px;
    --fs-8: 12px;

  }



  /**
   * #REUSED STYLE
   */

  .sidebar, article {
    width: 520px;
    margin-inline: auto;
    padding: 30px;
  }

  .article-title {
    font-weight: var(--fw-600);
    padding-bottom: 15px;
  }

  .article-title::after {
    width: 40px;
    height: 5px;
  }

  .icon-box {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    font-size: 18px;
  }



  /**
   * #MAIN
   */

  main {
    margin-top: 60px;
    margin-bottom: 100px;
  }



  /**
   * #SIDEBAR
   */

  .sidebar {
    --sidebar-fold-height: 232px;
    --sidebar-pad-top: 30px;
    --sidebar-info-block: 140px;

    height: var(--sidebar-fold-height);
    margin-bottom: 30px;
  }

  .sidebar:not(.active) { padding-bottom: var(--sidebar-fold-gap); }

  .sidebar.active {
    height: 360px;
    padding-bottom: 30px;
  }

  .sidebar-info { gap: 25px; }

  .avatar-box img { width: 140px; }

  .info-content .name { margin-bottom: 15px; }

  .info-content .title { padding: 5px 18px; }

  .info_more-btn {
    top: -30px;
    right: -30px;
    padding: 10px 15px;
  }

  .info_more-btn span {
    display: block;
    font-size: var(--fs-8);
  }

  .info_more-btn ion-icon { display: none; }

  .separator { margin: 32px 0; }

  .contacts-list { gap: 20px; }

  .sidebar-info_more .separator {
    margin-top: 0;
    margin-bottom: 0;
  }

  .sidebar.active .sidebar-info_more .separator {
    margin: 24px 0;
  }

  .sidebar.active .contacts-list { max-height: 150px; }

  .contact-info {
    max-width: calc(100% - 64px);
    width: calc(100% - 64px);
  }



  /**
   * #NAVBAR
   */

  .navbar { border-radius: 20px 20px 0 0; }

  .navbar-list { gap: 20px; }

  .navbar-link { --fs-8: 14px; }



  /**
   * #ABOUT
   */

  .about .article-title { margin-bottom: 20px; }

  .about-text { margin-bottom: 40px; }

  /* service */

  .service-item {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 18px;
    padding: 30px;
  }

  .service-icon-box {
    margin-bottom: 0;
    margin-top: 5px;
  }

  .service-content-box { text-align: left; }

  .about .research-interests .service-item {
    gap: 16px;
    padding: 22px 18px;
    align-items: center;
  }

  .about .research-interests .service-icon-box {
    margin-bottom: 0;
    margin-top: 0;
  }

  .about .research-interests .service-content-box {
    text-align: left;
  }

  /* testimonials */

  .testimonials-title { margin-bottom: 25px; }

  .testimonials-list {
    gap: 30px;
    margin: 0 -30px;
    padding: 30px;
    padding-bottom: 35px;
  }

  .content-card {
    padding: 30px;
    padding-top: 25px;
  }

  .testimonials-avatar-box {
    transform: translate(30px, -30px);
    border-radius: 20px;
  }

  .testimonials-avatar-box img { width: 80px; }

  .testimonials-item-title {
    margin-bottom: 10px;
    margin-left: 95px;
  }

  .testimonials-text {
    line-clamp: 2;
    -webkit-line-clamp: 2;
  }

  /* testimonials modal */

  .modal-container { padding: 20px; }

  .testimonials-modal {
    display: flex;
    justify-content: flex-start;
    align-items: stretch;
    gap: 25px;
    padding: 30px;
    border-radius: 20px;
  }

  .modal-img-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .modal-avatar-box {
    border-radius: 18px;
    margin-bottom: 0;
  }

  .modal-avatar-box img { width: 65px; }

  .modal-img-wrapper > img {
    display: block;
    flex-grow: 1;
    width: 35px;
  }

  /* clients */

  .clients-list {
    gap: 50px;
    margin: 0 -30px;
    padding: 45px;
    scroll-padding-inline: 45px;
  }

  .clients-item { min-width: calc(33.33% - 35px); }



  /**
   * #RESUME
   */

  .timeline-list { margin-left: 65px; }

  .timeline-item:not(:last-child)::before { left: -40px; }

  .timeline-item::after {
    height: 8px;
    width: 8px;
    left: -43px;
  }

  .skills-item:not(:last-child) { margin-bottom: 25px; }



  /**
   * #PORTFOLIO, BLOG
   */

  .project-img, .blog-banner-box { border-radius: 16px; }

  .blog-posts-list { gap: 30px; }

  .blog-content { padding: 25px; }



  /**
   * #CONTACT
   */

  .mapbox {
    height: 380px;
    border-radius: 18px;
  }

  .input-wrapper {
    gap: 30px;
    margin-bottom: 30px;
  }

  .form-input { padding: 15px 20px; }

  textarea.form-input { margin-bottom: 30px; }

  .form-btn {
    --fs-6: 16px;
    padding: 16px 20px;
  }

  .form-btn ion-icon { font-size: 18px; }

}





/**
 * responsive larger than 768px screen
 */

@media (min-width: 768px) {

  /**
   * REUSED STYLE
   */

  .sidebar, article { width: 700px; }

  .has-scrollbar::-webkit-scrollbar-button { width: 100px; }



  /**
   * SIDEBAR
   */

  .contacts-list {
    grid-template-columns: 1fr 1fr;
    gap: 30px 15px;
  }



  /**
   * NAVBAR
   */

  .navbar-link { --fs-8: 15px; }



  /**
   * ABOUT
   */

  /* testimonials modal */

  .testimonials-modal {
    gap: 35px;
    max-width: 680px;
  }

  .modal-avatar-box img { width: 80px; }



  /**
   * PORTFOLIO
   */

  .article-title { padding-bottom: 20px; }

  .filter-select-box { display: none; }

  .filter-list {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 25px;
    padding-left: 5px;
    margin-bottom: 30px;
  }

  .filter-item button {
    color: var(--light-gray);
    font-size: var(--fs-5);
    transition: color var(--transition-1);
  }

  .filter-item button:hover { color: var(--light-gray-70); }

  .filter-item button.active { color: var(--orange-yellow-crayola); }

  /* portfolio and blog grid */

  .blog-posts-list { grid-template-columns: 1fr 1fr; }

  .project-card {
    grid-template-columns: minmax(240px, 38%) 1fr;
    align-items: center;
    gap: 28px;
  }



  /**
   * CONTACT
   */

  .input-wrapper { grid-template-columns: 1fr 1fr; }

  .form-btn {
    width: max-content;
    margin-left: auto;
  }
  
}





/**
 * responsive larger than 1024px screen
 */

@media (min-width: 1024px) {

  /**
   * CUSTOM PROPERTY
   */

  :root {

    /**
    * shadow
    */

    --shadow-1: -4px 8px 24px hsla(0, 0%, 0%, 0.125);
    --shadow-2: 0 16px 30px hsla(0, 0%, 0%, 0.125);
    --shadow-3: 0 16px 40px hsla(0, 0%, 0%, 0.125);

  }



  /**
   * REUSED STYLE
   */

  .sidebar, article {
    width: 950px;
    box-shadow: var(--shadow-5);
  }



  /**
   * MAIN 
   */

  main { margin-bottom: 60px; }

  .main-content {
    position: relative;
    width: max-content;
    margin: auto;
  }



  /**
   * NAVBAR
   */

  .navbar {
    position: absolute;
    bottom: auto;
    top: 0;
    left: auto;
    right: 0;
    width: max-content;
    border-radius: 0 20px;
    padding: 0 20px;
    box-shadow: none;
  }

  .navbar-list {
    gap: 30px;
    padding: 0 20px;
  }

  .navbar-link { font-weight: var(--fw-500); }



  /**
   * ABOUT
   */

  /* service */

  .service-list {
    grid-template-columns: 1fr 1fr;
    gap: 20px 25px;
  }

  .about .service-list.research-interests {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  /* testimonials */

  .testimonials-item { min-width: calc(50% - 15px); }

  /* clients */

  .clients-item { min-width: calc(25% - 38px); }



  /**
   * PORTFOLIO
   */

  .project-list { grid-template-columns: 1fr; }



  /**
   * BLOG
   */

  .blog-banner-box { height: 230px; }

}





/**
 * responsive larger than 1250px screen
 */

@media (min-width: 1250px) {

  /**
   * RESET
   */

  html::-webkit-scrollbar,
  body::-webkit-scrollbar {
    width: 10px;
  }

  html::-webkit-scrollbar-track,
  body::-webkit-scrollbar-track {
    background: transparent;
  }

  html::-webkit-scrollbar-thumb,
  body::-webkit-scrollbar-thumb {
    border: 2px solid transparent;
    background-clip: padding-box;
    background-color: hsla(0, 0%, 100%, 0.18);
    border-radius: 999px;
    box-shadow: inset 0 0 0 1px hsla(0, 0%, 100%, 0.06);
  }

  html::-webkit-scrollbar-thumb:hover,
  body::-webkit-scrollbar-thumb:hover {
    background-color: hsla(0, 0%, 100%, 0.28);
  }

  html::-webkit-scrollbar-button,
  body::-webkit-scrollbar-button {
    display: none;
    height: 0;
    width: 0;
  }



  /**
   * REUSED STYLE
   */

  .sidebar, article { width: auto; }

  article { min-height: 100%; }



  /**
   * MAIN
   */

  main {
    max-width: 1500px;
    margin-inline: auto;
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 30px;
  }

  .main-content {
    flex: 1;
    min-width: 0;
    width: auto;
    margin: 0;
  }



  /**
   * SIDEBAR
   */

  .sidebar {
    position: sticky;
    top: 60px;
    max-height: max-content;
    height: 100%;
    margin-bottom: 0;
    padding-top: 30px;
    padding-bottom: 30px;
    z-index: 1;
  }

  .sidebar-info { flex-direction: column; }

  .avatar-box img { width: 190px; }

  .info-content .name {
    white-space: nowrap;
    text-align: center;
  }

  .info-content .title { margin: auto; }

  .info_more-btn { display: none; }

  .sidebar-info_more .separator:first-child,
  .sidebar-info_more .separator:last-of-type,
  .contacts-list {
    max-height: none;
    opacity: 1;
    overflow: visible;
    visibility: visible;
  }

  .sidebar-info_more { margin-top: 0; }

  .sidebar-info_more .separator:first-child { margin: 30px 0 16px; }

  .sidebar-info_more .separator:last-of-type { margin: 16px 0; }

  .contacts-list { margin: 0; }

  .contacts-list { grid-template-columns: 1fr; }

  .contact-info :is(.contact-link) {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .contact-info :is(.contact-link, time, address) {
    --fs-7: 14px;
    font-weight: var(--fw-300);
  }

  .social-list { justify-content: center; }



  /**
	 * RESUME
	 */

  .timeline-text { max-width: 100%; }

}