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

/*-----------------------------------*\
  #CUSTOM PROPERTY
\*-----------------------------------*/
:root {
  --bg-gradient-onyx: linear-gradient(to bottom right, hsl(240, 1%, 25%) 3%, hsl(0, 0%, 19%) 97%);
  --bg-gradient-jet: linear-gradient(to bottom right, hsla(240, 1%, 18%, 0.251) 0%, hsla(240, 2%, 11%, 0) 100%), hsl(240, 2%, 13%);
  --bg-gradient-yellow-1: linear-gradient(to bottom right, hsl(45, 100%, 71%) 0%, hsla(36, 100%, 69%, 0) 50%);
  --bg-gradient-yellow-2: linear-gradient(135deg, hsla(45, 100%, 71%, 0.251) 0%, hsla(35, 100%, 68%, 0) 59.86%), hsl(240, 2%, 13%);
  --border-gradient-onyx: linear-gradient(to bottom right, hsl(0, 0%, 25%) 0%, hsla(0, 0%, 25%, 0) 50%);
  --blue-gold-gradient: linear-gradient(to right, hsl(210, 100%, 60%), hsl(42, 100%, 70%));

  --jet: hsl(0, 0%, 22%);
  --onyx: hsl(240, 1%, 17%);
  --eerie-black-1: hsl(240, 2%, 13%);
  --eerie-black-2: hsl(240, 2%, 12%);
  --smoky-black: hsl(0, 0%, 7%);
  --white-1: hsl(0, 0%, 100%);
  --white-2: hsl(0, 0%, 98%);
  --electric-blue: hsl(210, 100%, 60%);
  --modern-gold: hsl(42, 100%, 70%);
  --vegas-gold: hsl(45, 54%, 58%);
  --light-gray: hsl(0, 0%, 84%);
  --light-gray-70: hsla(0, 0%, 84%, 0.7);

  --ff-poppins: 'Poppins', sans-serif;
  --fs-1: 24px;
  --fs-2: 18px;
  --fs-3: 17px;
  --fs-4: 16px;
  --fs-5: 15px;
  --fs-6: 14px;
  --fs-7: 13px;
  --fs-8: 11px;
  --fw-300: 300;
  --fw-400: 400;
  --fw-500: 500;
  --fw-600: 600;

  --shadow-1: -4px 8px 24px hsla(0, 0%, 0%, 0.25);
  --shadow-2: 0 16px 30px hsla(0, 0%, 0%, 0.25);
  --shadow-3: 0 16px 40px hsla(0, 0%, 0%, 0.25);
  --shadow-4: 0 25px 50px hsla(0, 0%, 0%, 0.15);
  --shadow-5: 0 24px 80px hsla(0, 0%, 0%, 0.25);

  --transition-1: 0.25s ease;
  --transition-2: 0.5s ease-in-out;
  --transition-3: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/*-----------------------------------*\
  #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;
}

::selection {
  background: var(--electric-blue);
  color: var(--smoky-black);
}

:focus { outline-color: var(--modern-gold); }

html { 
  font-family: var(--ff-poppins);
  scroll-behavior: smooth;
}

body { 
  background: var(--smoky-black);
}

/*-----------------------------------*\
  #REUSED STYLE
\*-----------------------------------*/
.sidebar, article, .right-sidebar {
  background: var(--eerie-black-2);
  border: 1px solid var(--jet);
  border-radius: 20px;
  padding: 15px;
  box-shadow: var(--shadow-1);
  z-index: 1;
}

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

.icon-box {
  position: relative;
  background: var(--border-gradient-onyx);
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 16px;
  color: var(--electric-blue);
  box-shadow: var(--shadow-1);
  z-index: 1;
}

.icon-box::before {
  content: "";
  position: absolute;
  inset: 1px;
  background: var(--eerie-black-1);
  border-radius: inherit;
  z-index: -1;
}

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

article { display: none; }
article.active {
  display: block;
  animation: fade 0.5s ease backwards;
}

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

.h2, .h3, .h4, .h5 {
  color: var(--white-2);
  text-transform: capitalize;
}

.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;
  text-align: left;
}

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

.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;
}

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

.content-card, .service-item, .certificate-item, .project-item {
  transition: transform var(--transition-3), box-shadow var(--transition-3);
}

.content-card:hover, .service-item:hover, .certificate-item:hover, .project-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-3);
}

/*-----------------------------------*\
  #MAIN
\*-----------------------------------*/
main {
  margin: 15px 12px;
  margin-bottom: 75px;
  min-width: 259px;
}

/*-----------------------------------*\
  #SIDEBAR
\*-----------------------------------*/
.sidebar {
  margin-bottom: 15px;
  max-height: 112px;
  overflow: hidden;
  transition: var(--transition-2);
}

.sidebar.active { max-height: 405px; }

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

.avatar-box {
  background: var(--bg-gradient-onyx);
  border-radius: 20px;
}

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

.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;
  text-align: left;
}

.info_more-btn {
  position: absolute;
  top: -15px;
  right: -15px;
  border-radius: 0 15px;
  font-size: 13px;
  color: var(--modern-gold);
  background: var(--border-gradient-onyx);
  padding: 10px;
  box-shadow: var(--shadow-2);
  transition: var(--transition-1);
  z-index: 1;
}

.info_more-btn::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: var(--bg-gradient-jet);
  transition: 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 {
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-2);
}

.sidebar.active .sidebar-info_more {
  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: uppercase;
  margin-bottom: 2px;
  text-align: left;
}

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

.social-list {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  padding-bottom: 4px;
  padding-left: 0;
}

.social-item .social-link {
  color: var(--light-gray-70);
  font-size: 18px;
}

.social-item .social-link:hover { color: var(--electric-blue); }

ion-icon { pointer-events: none; }

/*-----------------------------------*\
  #RIGHT SIDEBAR
\*-----------------------------------*/
.right-sidebar {
  display: none; /* Hidden by default on mobile */
  margin-bottom: 15px;
}

.right-sidebar-title {
  color: var(--white-2);
  font-size: var(--fs-3);
  font-weight: var(--fw-500);
  margin-bottom: 20px;
  padding-bottom: 7px;
  position: relative;
  text-align: left;
}

.right-sidebar-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 3px;
  background: var(--blue-gold-gradient);
  border-radius: 3px;
}

.project-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.project-item {
  background: var(--border-gradient-onyx);
  padding: 15px;
  border-radius: 14px;
  box-shadow: var(--shadow-2);
  z-index: 1;
  position: relative;
}

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

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.project-title-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  flex-wrap: wrap;
}

.project-title-link {
  display: block;
  text-decoration: none;
  transition: color var(--transition-1);
  flex: 1;
  cursor: pointer;
}

.project-title-link.disabled {
  cursor: default;
  pointer-events: none;
}

.project-title {
  color: var(--white-2);
  font-size: var(--fs-5);
  font-weight: var(--fw-500);
  text-align: left;
  transition: color var(--transition-1);
  margin: 0;
}

.project-title-link:not(.disabled):hover .project-title {
  color: var(--electric-blue);
}

.project-title-wrapper .project-title {
  margin: 0;
}

.project-badge {
  display: inline-block;
  font-size: var(--fs-8);
  font-weight: var(--fw-600);
  padding: 2px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  animation: badge-pulse 2s ease-in-out infinite;
}

/* Under Development - Red badge */
.project-badge.under-development {
  background: linear-gradient(135deg, #ff416c, #ff4b2b);
  color: #fff;
  box-shadow: 0 2px 15px rgba(255, 65, 108, 0.4);
}

/* Regular badge (yellow) - keep as fallback */
.project-badge:not(.under-development) {
  background: linear-gradient(to right, #f7971e, #ffd200);
  color: var(--smoky-black);
}

@keyframes badge-pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(0.95);
  }
}

.project-github-link {
  color: var(--light-gray-70);
  font-size: 20px;
  transition: color var(--transition-1);
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.project-github-link:hover {
  color: var(--electric-blue);
}

.project-github-link ion-icon {
  font-size: 22px;
}

.project-text {
  color: var(--light-gray);
  font-size: var(--fs-7);
  font-weight: var(--fw-300);
  line-height: 1.6;
  margin-top: 8px;
  text-align: left;
}

/*-----------------------------------*\
  #NAVBAR
\*-----------------------------------*/
.navbar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: hsla(240, 1%, 17%, 0.75);
  backdrop-filter: blur(10px);
  border: 1px solid var(--jet);
  border-radius: 12px 12px 0 0;
  box-shadow: var(--shadow-2);
  z-index: 5;
}

.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);
  text-align: center;
}

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

.navbar-link.active { color: var(--electric-blue); }

/*-----------------------------------*\
  #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;
  text-align: left;
}

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

.service { margin-bottom: 35px; }
.service-title { 
  margin-bottom: 20px;
  text-align: left;
}

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

.service-item {
  position: relative;
  background: var(--border-gradient-onyx);
  padding: 20px;
  border-radius: 14px;
  box-shadow: var(--shadow-2);
  z-index: 1;
}

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

.service-icon-box { margin-bottom: 10px; }
.service-icon-box img { margin: 0; }
.service-content-box { text-align: left; }
.service-item-title { 
  margin-bottom: 7px;
  text-align: left;
}

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

/*-----------------------------------*\
  #PROFILE
\*-----------------------------------*/
.article-title { 
  margin-bottom: 30px;
  text-align: left;
}

.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;
  text-align: left;
}

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

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

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

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

.skills-title { 
  margin-bottom: 20px;
  text-align: left;
}
.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 h5 {
  text-align: left;
}

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

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

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

.timeline-item[data-status="completed"]::after {
  background: hsl(120, 100%, 40%);
}

.timeline-item[data-status="ongoing"]::after {
  background: var(--blue-gold-gradient);
}

/*-----------------------------------*\
  #CERTIFICATION
\*-----------------------------------*/
.certification-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 25px;
  border-bottom: 1px solid var(--jet);
  padding-bottom: 15px;
  justify-content: flex-start;
}

.tab-btn {
  background: var(--eerie-black-1);
  color: var(--light-gray);
  padding: 8px 20px;
  border-radius: 30px;
  font-size: var(--fs-6);
  transition: var(--transition-1);
  cursor: pointer;
  text-align: center;
}

.tab-btn.active {
  background: var(--electric-blue);
  color: var(--smoky-black);
  font-weight: var(--fw-500);
}

.tab-btn:focus {
  outline: 2px solid var(--electric-blue);
  outline-offset: 2px;
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.tab-content.active { display: block; }

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.cert-section {
  margin-bottom: 30px;
}

.cert-section-title {
  font-size: var(--fs-4);
  margin-bottom: 20px;
  padding-left: 5px;
  border-left: 3px solid var(--electric-blue);
  text-align: left;
}

.archive-toggle-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 15px 20px;
  background: var(--border-gradient-onyx);
  border-radius: 14px;
  color: var(--white-2);
  font-size: var(--fs-5);
  font-weight: var(--fw-500);
  cursor: pointer;
  transition: all var(--transition-1);
  margin-bottom: 15px;
}

.archive-toggle-btn:hover {
  background: var(--bg-gradient-yellow-1);
  transform: translateY(-2px);
}

.archive-toggle-btn .toggle-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-2);
}

.archive-toggle-btn .toggle-icon ion-icon {
  font-size: 20px;
  color: var(--electric-blue);
}

.archive-toggle-btn .toggle-text {
  flex: 1;
  text-align: left;
}

.archive-toggle-btn .archive-count {
  font-size: var(--fs-7);
  color: var(--light-gray-70);
  font-weight: var(--fw-300);
}

.archived-content {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.5s ease-out, opacity 0.4s ease-out;
  visibility: hidden;
}

.archived-content.expanded {
  max-height: 2000px;
  opacity: 1;
  visibility: visible;
  transition: max-height 0.6s ease-in, opacity 0.5s ease-in;
}

.archive-toggle-btn[aria-expanded="true"] .toggle-icon {
  transform: rotate(180deg);
}

.archived-grid {
  margin-top: 10px;
}

.certificate-item {
  background: var(--border-gradient-onyx);
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
}

.certificate-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.certificate-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.certificate-hover {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s ease;
  z-index: 2;
  background: hsla(0, 0%, 0%, 0.3);
}

.certificate-hover:hover {
  opacity: 0.8;
  background: hsla(0, 0%, 0%, 0.5);
}

.certificate-content { padding: 15px; }
.certificate-content .h3 {
  margin-bottom: 5px;
  font-size: var(--fs-5);
  text-align: left;
}

.cert-meta {
  color: var(--light-gray-70);
  font-size: var(--fs-7);
  margin-bottom: 10px;
  text-align: left;
}

.cert-link {
  color: var(--electric-blue);
  font-size: var(--fs-7);
  font-weight: var(--fw-500);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: color 0.3s ease;
}

.cert-link:hover {
  color: var(--modern-gold);
  text-decoration: underline;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.certificate-preview {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 999;
  max-width: 80vw;
  max-height: 80vh;
  border: 2px solid var(--electric-blue);
  border-radius: 10px;
  box-shadow: var(--shadow-5);
  display: none;
  background: var(--eerie-black-2);
  padding: 10px;
}

.certificate-preview.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.certificate-preview img {
  max-width: 100%;
  max-height: calc(80vh - 20px);
  object-fit: contain;
  border-radius: 8px;
}

.preview-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  z-index: 998;
  display: none;
}

.preview-overlay.active {
  display: block;
}

.preview-close-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 30px;
  height: 30px;
  background: var(--eerie-black-2);
  border: 1px solid var(--electric-blue);
  border-radius: 50%;
  color: var(--electric-blue);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  cursor: pointer;
  z-index: 10;
}

.certificate-preview:hover .preview-close-btn {
  opacity: 1;
}

.preview-close-btn:hover {
  background: var(--electric-blue);
  color: var(--smoky-black);
}

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

/*-----------------------------------*\
  #WHATSAPP FLOATING BUTTON
\*-----------------------------------*/
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: #25D366;
  color: #fff;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  z-index: 100;
  transition: all var(--transition-1);
  text-decoration: none;
  animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
}

.whatsapp-float ion-icon {
  font-size: 32px;
  color: #fff;
}

@keyframes pulse-whatsapp {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

/*-----------------------------------*\
  #HACKATHON TITLE HIGHLIGHT
\*-----------------------------------*/
.hackathon-title {
  display: inline-block;
  padding: 2px 12px;
  border-radius: 8px;
  background: linear-gradient(135deg, #f7971e, #ffd200);
  color: var(--smoky-black);
  font-weight: var(--fw-600);
  letter-spacing: 0.5px;
  box-shadow: 0 2px 15px rgba(247, 151, 30, 0.3);
  animation: title-glow 2s ease-in-out infinite;
  transition: all var(--transition-1);
}

@keyframes title-glow {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.02);
    opacity: 0.9;
  }
}

.hackathon-title:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 25px rgba(247, 151, 30, 0.5);
}

/*-----------------------------------*\
  #RESPONSIVE
\*-----------------------------------*/
@media (min-width: 580px) {
  :root {
    --fs-1: 32px;
    --fs-2: 24px;
    --fs-3: 26px;
    --fs-4: 18px;
    --fs-6: 15px;
    --fs-7: 15px;
    --fs-8: 12px;
  }

  @media (max-width: 580px) {
    .certificate-grid {
      grid-template-columns: 1fr;
    }
    
    .whatsapp-float {
      width: 50px;
      height: 50px;
      bottom: 80px;
      right: 15px;
    }
    
    .whatsapp-float ion-icon {
      font-size: 26px;
    }
  }

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

  .right-sidebar {
    display: none;
  }

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

  .sidebar {
    max-height: 180px;
    margin-bottom: 30px;
  }

  .sidebar.active { max-height: 584px; }
  .sidebar-info { gap: 25px; }
  .avatar-box { border-radius: 30px; }
  .avatar-box img { width: 120px; }
  .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; }

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

  .navbar { border-radius: 20px 20px 0 0; }
  .navbar-list { gap: 20px; }
  .navbar-link { --fs-8: 14px; }

  .about .article-title { margin-bottom: 20px; }
  .about-text { margin-bottom: 40px; }

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

  .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; }
}

@media (min-width: 768px) {
  .sidebar, article, .right-sidebar { width: 700px; }
  .contacts-list { grid-template-columns: 1fr 1fr; gap: 30px 15px; }
  .navbar-link { --fs-8: 15px; }
}

@media (min-width: 1024px) {
  :root {
    --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);
  }

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

  .right-sidebar {
    display: none;
  }

  main { margin-bottom: 60px; }

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

  .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); }

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

@media (min-width: 1250px) {
  body::-webkit-scrollbar { width: 20px; }
  body::-webkit-scrollbar-track { background: var(--smoky-black); }

  body::-webkit-scrollbar-thumb {
    border: 5px solid var(--smoky-black);
    background: hsla(0, 0%, 100%, 0.1);
    border-radius: 20px;
    box-shadow: inset 1px 1px 0 hsla(0, 0%, 100%, 0.11),
                inset -1px -1px 0 hsla(0, 0%, 100%, 0.11);
  }

  body::-webkit-scrollbar-thumb:hover { background: hsla(0, 0%, 100%, 0.15); }
  body::-webkit-scrollbar-button { height: 60px; }

  .sidebar, .right-sidebar, article { width: auto; }
  article { min-height: 100%; }

  main {
    max-width: 1400px;
    margin-inline: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 25px;
  }

  .sidebar {
    position: sticky;
    top: 60px;
    margin-bottom: 0;
    padding-top: 60px;
    z-index: 1;
    flex: 0 0 280px;
    min-width: 280px;
    order: 1;
    align-self: flex-start;
    max-height: none;
    overflow: visible;
  }

  /* Hide the first separator and add margin-top to contacts list */
  .sidebar .separator:first-of-type {
    display: none;
  }

  .sidebar .contacts-list {
    margin-top: 20px;
  }

  .right-sidebar {
    display: block;
    position: sticky;
    top: 60px;
    margin-bottom: 0;
    padding: 30px;
    z-index: 1;
    flex: 0 0 280px;
    min-width: 280px;
    order: 3;
    align-self: flex-start;
    max-height: none;
    overflow: visible;
  }

  .main-content {
    min-width: 0;
    width: 100%;
    margin: 0;
    flex: 1;
    order: 2;
  }

  .sidebar-info { flex-direction: column; }
  .avatar-box img { width: 150px; }

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

  .info-content .title { 
    margin: 0;
    text-align: left;
  }
  
  .info_more-btn { display: none; }
  .sidebar-info_more { opacity: 1; visibility: visible; }
  .contacts-list { grid-template-columns: 1fr; }

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

  /* Remove the bottom separator as well */
  .separator:last-of-type {
    margin: 15px 0;
    opacity: 0;
  }

  .social-list { 
    justify-content: center;
    padding-left: 0;
  }
  
  .timeline-text { max-width: 700px; }

  .right-sidebar-title {
    font-size: var(--fs-2);
  }

  .project-item {
    padding: 20px;
  }
}

@media (max-width: 580px) {
  .certificate-grid {
    grid-template-columns: 1fr;
  }
}