@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ============================================================
   THEME TOKENS
   ============================================================ */
:root {
  --bg:               #ffffff;
  --bg-2:             #f5f5f5;
  --bg-3:             #ebebeb;
  --text:             #0d0d0d;
  --text-2:           #4b5563;
  --text-3:           #9ca3af;
  --accent:           #6dbb00;
  --accent-dim:       rgba(109,187,0,0.15);
  --accent-dark:      #4d8a00;
  --border:           rgba(0,0,0,0.09);
  --border-strong:    #0d0d0d;
  --card-bg:          #fafafa;
  --card-shadow:      0 4px 20px rgba(0,0,0,0.06);
  --card-shadow-hover:0 14px 40px rgba(0,0,0,0.14);
  --header-bg:        rgba(255,255,255,0.82);
  --timeline-bg:      rgba(231,230,230,0.52);
  --btn-color:        #fdfdfd;
  --btn-bg:           #0d0d0d;
  --header-link-hover:#e8e8e8;
  --footer-link-hover:#6dbb00;
  --input-focus-bd:   #0d0d0d;
  --dot-color:        rgba(0,0,0,0.09);
}

[data-theme="dark"] {
  --bg:               #0a0a0a;
  --bg-2:             #111111;
  --bg-3:             #1c1c1c;
  --text:             #ededed;
  --text-2:           #a1a1aa;
  --text-3:           #52525b;
  --accent:           #6dbb00;
  --accent-dim:       rgba(109,187,0,0.18);
  --accent-dark:      #8fd600;
  --border:           rgba(255,255,255,0.08);
  --border-strong:    rgba(255,255,255,0.88);
  --card-bg:          #111111;
  --card-shadow:      0 4px 20px rgba(0,0,0,0.50);
  --card-shadow-hover:0 14px 40px rgba(0,0,0,0.70);
  --header-bg:        rgba(10,10,10,0.85);
  --timeline-bg:      rgba(17,17,17,0.90);
  --btn-color:        #0a0a0a;
  --btn-bg:           #6dbb00;
  --header-link-hover:rgba(255,255,255,0.08);
  --dot-color:        rgba(255,255,255,0.06);
}

/* ============================================================
   GLOBAL
   ============================================================ */
html {
  scroll-behavior: smooth;
  font-family: "Roboto", sans-serif;
}

h1, h2, h3, h4, h5 {
  font-family: "Plus Jakarta Sans", "Roboto", sans-serif;
}

body {
  background-color: var(--bg) !important;
  color: var(--text) !important;
  transition: background-color 0.4s ease, color 0.4s ease;
}

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

/* ============================================================
   HEADER
   ============================================================ */
header {
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  background-color: var(--header-bg) !important;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

header > .collapsible-header {
  display: flex;
  gap: 1rem;
  width: 100%;
  background-color: inherit;
  place-content: center;
  overflow: hidden;
  transition: width 0.3s ease;
}

.header-links {
  display: flex;
  align-items: center;
  min-width: fit-content;
  border-radius: 25px;
  padding: 5px 15px;
  color: var(--text);
  font-weight: 500;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.header-links:hover {
  background-color: var(--header-link-hover);
}

/* Dark mode toggle */
#theme-toggle {
  display: flex;
  height: 36px;
  width: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background-color: transparent;
  color: var(--text);
  font-size: 15px;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.4s ease, border-color 0.3s ease;
}

#theme-toggle:hover {
  background-color: var(--text);
  color: var(--bg);
  transform: rotate(25deg);
}

/* Lang toggle */
#lang-toggle {
  color: var(--text) !important;
  border-color: var(--border-strong) !important;
  transition: background-color 0.3s ease, color 0.3s ease;
}

#lang-toggle:hover {
  background-color: var(--text) !important;
  color: var(--bg) !important;
}

/* Header contact button */
.header-contact-btn {
  display: flex;
  height: 40px;
  align-items: center;
  gap: 8px;
  border-radius: 30px;
  background-color: var(--text);
  color: var(--bg);
  padding: 4px 4px 4px 16px;
  font-size: 14px;
  font-weight: 500;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.4s ease, color 0.4s ease;
}

.header-contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.18);
}

.header-contact-btn .btn-circle {
  display: flex;
  width: 30px;
  height: 30px;
  place-content: center;
  place-items: center;
  border-radius: 50%;
  background-color: var(--bg);
  color: var(--text);
  font-weight: 600;
  transition: transform 0.3s ease, background-color 0.4s ease, color 0.4s ease;
}

.header-contact-btn:hover .btn-circle {
  transform: rotate(45deg);
}

/* ============================================================
   HERO / ABOUT
   ============================================================ */
#about {
  background-color: var(--bg);
}

/* Animated dot grid */
#about::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--dot-color) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
  transition: opacity 0.4s ease;
}

#about > div {
  position: relative;
  z-index: 1;
}

/* Hero highlight on name */
.hero-name-highlight {
  position: relative;
  background: transparent !important;
  color: #000 !important;
  padding: 2px 20px;
  overflow: hidden;
  isolation: isolate;
  animation: hl-glow 3s ease-in-out 1.7s infinite;
}

.hero-name-highlight::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(105deg, var(--accent) 0%, #c6f000 48%, var(--accent) 100%);
  background-size: 220% 100%;
  transform: scaleX(0);
  transform-origin: left center;
  animation:
    hl-reveal 0.6s cubic-bezier(0.22, 1, 0.36, 1) 1.0s forwards,
    hl-shimmer 4s ease-in-out 1.7s infinite;
}

@keyframes hl-reveal {
  to { transform: scaleX(1); }
}

@keyframes hl-shimmer {
  0%, 100% { background-position: 0% 0%; }
  50%       { background-position: 100% 0%; }
}

@keyframes hl-glow {
  0%, 100% { box-shadow: 0 0 0px  rgba(109,187,0,0.0); }
  50%       { box-shadow: 0 0 28px rgba(109,187,0,0.55); }
}

.hero-subtitle {
  color: var(--text-2);
  transition: color 0.4s ease;
}

/* Profile section */
.profile-container {
  position: relative;
  display: flex;
  place-content: center;
  place-items: center;
}

.profile-wrapper {
  animation: float 5s ease-in-out infinite;
  border-color: var(--accent) !important;
  box-shadow:
    0 0 0 4px var(--accent-dim),
    0 24px 60px rgba(0,0,0,0.22);
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.profile-photo {
  object-position: center 80%;
}

/* Tech badges */
.tech-badge {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border-radius: 24px;
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  box-shadow: var(--card-shadow);
  white-space: nowrap;
  z-index: 2;
  transition: background-color 0.4s ease, border-color 0.4s ease, color 0.4s ease;
}

.tech-badge i {
  color: var(--accent);
}

.tech-badge.tb-top    { top: -20px;   left: -10px;  animation: float 4.5s ease-in-out infinite; }
.tech-badge.tb-mid    { top: 38%;     right: -42px; animation: float 5.5s ease-in-out 0.6s infinite; }
.tech-badge.tb-bottom { bottom: 20px; left: -40px;  animation: float 4s ease-in-out 1.2s infinite; }

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-14px); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--text-3);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: bounce 2.2s ease-in-out infinite;
  z-index: 2;
  transition: color 0.4s ease;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(9px); }
}

/* CTA buttons */
.cta-btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  height: 46px;
  align-items: center;
  gap: 10px;
  border-radius: 30px;
  background-color: var(--text);
  color: var(--bg);
  padding: 0 6px 0 20px;
  font-size: 15px;
  font-weight: 500;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.4s ease, color 0.4s ease;
}

.cta-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.20);
}

.cta-btn:hover::before {
  opacity: 0.18;
}

.cta-btn span, .cta-btn i {
  position: relative;
  z-index: 1;
}

.cta-btn .btn-circle {
  position: relative;
  z-index: 1;
  display: flex;
  width: 34px;
  height: 34px;
  place-content: center;
  place-items: center;
  border-radius: 50%;
  background-color: var(--bg);
  color: var(--text);
  font-size: 14px;
  transition: transform 0.35s ease, background-color 0.4s ease, color 0.4s ease;
}

.cta-btn:hover .btn-circle {
  transform: rotate(45deg);
}

/* ============================================================
   ABOUT BIO
   ============================================================ */
section .tw-text-gray-600,
section .tw-text-gray-700,
section .tw-text-gray-800 {
  color: var(--text-2) !important;
}

section h3 {
  color: var(--text);
}

.section-line {
  background-color: var(--border-strong) !important;
  opacity: 0.15;
  transition: background-color 0.4s ease;
}

/* ============================================================
   PROJECT CARDS
   ============================================================ */
.project-card {
  background-color: var(--card-bg) !important;
  border: 1px solid var(--border) !important;
  border-left: 3px solid transparent !important;
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease, background-color 0.4s ease;
}

.project-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.project-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--card-shadow-hover);
  border-left-color: var(--accent) !important;
}

.project-card:hover::after {
  opacity: 0.05;
}

.project-card p.tw-text-gray-700 {
  color: var(--text-2) !important;
}

.proj-icon {
  display: flex;
  flex: none;
  width: 48px;
  height: 48px;
  place-content: center;
  place-items: center;
  border-radius: 12px;
  background-color: var(--accent-dim);
  font-size: 22px;
  color: var(--accent-dark);
  transition: background-color 0.35s ease, transform 0.3s ease;
}

.project-card:hover .proj-icon {
  transform: scale(1.1);
}

.proj-tag {
  padding: 3px 10px;
  border-radius: 20px;
  background-color: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-size: 11px;
  font-weight: 500;
  transition: background-color 0.4s ease, border-color 0.4s ease, color 0.4s ease;
}

.proj-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  width: max-content;
  font-weight: 500;
  color: var(--text);
  position: relative;
  z-index: 1;
  transition: gap 0.3s ease, color 0.3s ease;
}

.proj-link:hover {
  gap: 12px;
  color: var(--accent-dark);
}

/* ============================================================
   TIMELINE
   ============================================================ */
#timeline > div {
  background-color: var(--timeline-bg) !important;
  border-color: var(--border) !important;
  transition: background-color 0.4s ease;
}

#timeline .tw-border-black {
  border-color: var(--border-strong) !important;
  transition: border-color 0.4s ease;
}

#timeline .tw-bg-white {
  background-color: var(--card-bg) !important;
  color: var(--text) !important;
  transition: background-color 0.4s ease;
}

#timeline .tw-text-gray-500 { color: var(--text-3) !important; }
#timeline .tw-text-gray-700 { color: var(--text-2) !important; }
#timeline .tw-text-lg.tw-font-semibold { color: var(--text) !important; }

.time-badge {
  flex: none;
  padding: 2px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.02em;
}

.time-badge.edu   { background-color: #2563eb; }
.time-badge.work  { background-color: #16a34a; }
.time-badge.award { background-color: #d97706; }

/* ============================================================
   SKILL BOXES
   ============================================================ */
.skill-box {
  border-radius: 14px;
  border: 1px solid var(--border);
  background-color: var(--card-bg);
  color: var(--text);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.4s ease;
}

.skill-box:hover {
  transform: translateY(-7px);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--card-shadow-hover);
}

.skill-box .tw-text-\[\#595959\] {
  color: var(--text-2) !important;
}

.skill-box i {
  color: var(--accent);
}

/* ============================================================
   CERTIFICATE CARDS
   ============================================================ */
.cert-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 300px;
  padding: 24px;
  border-radius: 16px;
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease, background-color 0.4s ease;
}

.cert-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent);
}

.cert-card h4 {
  color: var(--text);
  font-family: "Plus Jakarta Sans", sans-serif;
}

.cert-card p { color: var(--text-2) !important; }

.cert-badge {
  display: flex;
  width: 52px;
  height: 52px;
  place-content: center;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #000;
  font-size: 22px;
  transition: transform 0.3s ease;
}

.cert-card:hover .cert-badge {
  transform: scale(1.1) rotate(-5deg);
}

.cert-meta {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Featured achievement */
.featured-award {
  background: linear-gradient(135deg, var(--accent-dim), var(--card-bg)) !important;
  border: 2px solid var(--accent) !important;
  color: var(--text) !important;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

.featured-award p { color: var(--text-2) !important; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 30px;
  border: 1px solid var(--border-strong);
  background-color: var(--bg);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  transition: background-color 0.35s ease, color 0.35s ease, transform 0.3s ease, border-color 0.4s ease;
}

.contact-pill:hover {
  background-color: var(--text);
  color: var(--bg);
  transform: translateY(-3px);
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background-color: var(--bg-2) !important;
  border-top: 1px solid var(--border);
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

footer p { color: var(--text-2) !important; }

footer a {
  color: var(--text-2);
  transition: color 0.3s ease;
}

footer a:hover { color: var(--accent); }

.footer-link {
  color: var(--text-2);
  transition: color 0.3s ease;
}

.footer-link:hover { color: var(--footer-link-hover); }

/* ============================================================
   UTILITY
   ============================================================ */
.outline-effect {
  color: black;
  -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 2px black;
}

/* Dark mode: override hardcoded Tailwind color classes */
[data-theme="dark"] .tw-bg-black {
  background-color: rgba(255,255,255,0.15) !important;
}

[data-theme="dark"] .tw-text-black {
  color: var(--text) !important;
}

.animated-collapse { transition: width 0.3s ease; }
.opacity-0   { opacity: 0 !important; }
.opacity-100 { opacity: 1 !important; }

.btn {
  padding: 10px 20px;
  width: max-content;
  border-radius: 25px;
  color: var(--btn-color);
  background-color: var(--btn-bg);
  justify-content: center;
  align-items: center;
  display: flex;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.4s ease, color 0.4s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.input {
  padding: 10px;
  background-color: transparent;
  border-radius: 25px;
  min-width: 100px;
  border: 2px solid var(--border);
  color: var(--text);
  transition: border-color 0.3s ease;
}

.input:focus {
  outline: none;
  border-color: var(--border-strong);
}

hr {
  border-color: var(--border) !important;
  transition: border-color 0.4s ease;
}

/* ============================================================
   MOBILE HEADER
   ============================================================ */
@media not all and (min-width: 1024px) {
  header .collapsible-header {
    position: fixed;
    right: 0;
    flex-direction: column;
    opacity: 0;
    height: 100vh;
    height: 100dvh;
    width: 0vw;
    justify-content: space-between;
    padding: 5px;
    padding-top: 5%;
    padding-bottom: 5%;
    place-items: end;
    background-color: var(--bg) !important;
    color: var(--text);
    overflow-y: auto;
    box-shadow: -4px 0 20px rgba(0,0,0,0.15);
  }

  .header-links { color: var(--text); }

  .tech-badge.tb-mid {
    right: -20px;
  }
  .tech-badge.tb-bottom {
    left: -20px;
  }
}

@media (max-width: 1024px) {
  .cert-card { width: 100%; max-width: 360px; }
  .tech-badge { display: none; }
}

@media (min-width: 1024px) {
  .tech-badge { display: inline-flex; }
}