:root {
  --bg: #0b1020;
  --bg-secondary: rgba(0, 0, 0, 0.2);
  --card: #111933;
  --text: #f8f9fa;
  --muted: #b8c0d6;
  --primary: #5b8cff;
  --accent: #9f7aea;
  --navbar-bg: rgba(11, 16, 32, 0.9);
  --navbar-border: rgba(255, 255, 255, 0.07);
  --border-soft: rgba(255, 255, 255, 0.08);
  --field-bg: #121936;
  --field-placeholder: #9ba7ca;
  --project-link: #fff;
  --hero-badge-bg: rgba(91, 140, 255, 0.2);
  --hero-badge-text: #dce7ff;
  --hero-badge-border: rgba(91, 140, 255, 0.5);
  --body-gradient: radial-gradient(circle at top right, #1d2b55, var(--bg) 45%);
  --footer-border: rgba(255, 255, 255, 0.08);
  --form-status: #8df0b5;
  --timeline-list: #d8def3;
}

body[data-theme="light"] {
  --bg: #f4f7ff;
  --bg-secondary: #e9efff;
  --card: #ffffff;
  --text: #151c2f;
  --muted: #4c587a;
  --primary: #3f6ef2;
  --accent: #7a5cf0;
  --navbar-bg: rgba(255, 255, 255, 0.92);
  --navbar-border: rgba(21, 28, 47, 0.1);
  --border-soft: rgba(21, 28, 47, 0.13);
  --field-bg: #ffffff;
  --field-placeholder: #637095;
  --project-link: #151c2f;
  --hero-badge-bg: rgba(63, 110, 242, 0.12);
  --hero-badge-text: #1f3ea4;
  --hero-badge-border: rgba(63, 110, 242, 0.35);
  --body-gradient: radial-gradient(circle at top right, #dce6ff, var(--bg) 50%);
  --footer-border: rgba(21, 28, 47, 0.12);
  --form-status: #1f8f58;
  --timeline-list: #2f3a5a;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--body-gradient);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  overflow-x: hidden;
}

.navbar {
  background: var(--navbar-bg);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--navbar-border);
  padding-top: 0.95rem;
  padding-bottom: 0.95rem;
  min-height: 76px;
}

.navbar-brand {
  padding-top: 0;
  padding-bottom: 0;
}

.navbar-brand,
.nav-link {
  color: var(--text) !important;
}

.navbar-toggler {
  border: 1px solid var(--border-soft);
  color: var(--text);
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-toggler i {
  color: var(--text);
}

body[data-theme="dark"] .navbar-toggler,
body:not([data-theme]) .navbar-toggler {
  color: #ffffff;
  border-color: #ffffff;
}

body[data-theme="dark"] .navbar-toggler i,
body:not([data-theme]) .navbar-toggler i {
  color: #ffffff;
}

.navbar-brand-text {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.navbar-brand-accent {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.navbar-logo {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 2px solid var(--primary);
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.navbar-nav .nav-link {
  opacity: 0.88;
  text-transform: uppercase;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0.55rem 1rem !important;
  margin: 0.2rem 0.15rem;
  transition: color 0.25s ease, opacity 0.25s ease, transform 0.25s ease, border-color 0.25s ease,
    background 0.25s ease, box-shadow 0.25s ease;
}

.navbar-nav .nav-link:hover {
  opacity: 1;
  color: var(--primary) !important;
  transform: translateY(-1px);
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 14%, transparent);
}

.navbar-nav .nav-link:focus-visible {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 45%, transparent);
}

.navbar-nav .nav-link:active {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 22%, transparent);
}

.navbar-nav .nav-link.active {
  opacity: 1;
  color: var(--primary) !important;
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 18%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--primary) 35%, transparent);
}

.hero {
  min-height: 100vh;
  padding-top: 118px;
}

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

.text-gradient {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn-custom {
  padding: 10px 20px;
  border-radius: 12px;
}

.social-icons a {
  color: var(--text);
  font-size: 1.2rem;
  margin-right: 12px;
  transition: transform 0.25s ease, color 0.25s ease;
}

.social-icons a:hover {
  transform: translateY(-3px);
  color: var(--primary);
}

.hero-card {
  max-width: min(100%, 380px);
  background: color-mix(in srgb, var(--card) 92%, transparent);
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  padding: 28px 22px 32px;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.hero-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.hero-card-tagline {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.5;
  max-width: 22ch;
}

.hero-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
  border-color: rgba(91, 140, 255, 0.45);
}

.hero-card i {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 12px;
}

.profile-image {
  width: clamp(240px, 34vw, 300px);
  height: clamp(240px, 34vw, 300px);
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  border: 4px solid rgba(91, 140, 255, 0.8);
  margin-bottom: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  animation: floatImage 5s ease-in-out infinite;
  flex-shrink: 0;
}

.section-padding {
  padding: 90px 0;
}

.section-title {
  font-weight: 700;
}

.bg-dark-alt {
  background: var(--bg-secondary);
}

.glass-card {
  background: color-mix(in srgb, var(--card) 88%, transparent);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
}

.metric-card {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  text-align: center;
  padding: 24px;
  height: 100%;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.metric-card h3 {
  color: var(--primary);
  margin-bottom: 8px;
}

.metric-card p {
  color: var(--muted);
  margin: 0;
}

.skill-card {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 18px;
  text-align: center;
  font-weight: 600;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.35s ease, background 0.35s ease;
}

.skill-card > i {
  display: block;
  font-size: 1.3rem;
  margin-bottom: 8px;
  color: var(--primary);
  transition: transform 0.45s cubic-bezier(0.34, 1.35, 0.64, 1), color 0.35s ease, filter 0.4s ease;
}

/* Skills grid only — stronger hover (overrides generic tilt on these cards) */
#skills .skill-card.tilt-card {
  transform: translateZ(0);
}

#skills .skill-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  transition:
    transform 0.45s cubic-bezier(0.34, 1.35, 0.64, 1),
    box-shadow 0.45s ease,
    border-color 0.35s ease,
    background 0.45s ease;
}

#skills .skill-card::before {
  content: "";
  position: absolute;
  inset: -40% -60%;
  background: conic-gradient(from 210deg, transparent 0deg, color-mix(in srgb, var(--primary) 35%, transparent) 55deg, transparent 95deg);
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.7s ease;
  transform: rotate(0deg) scale(0.85);
  pointer-events: none;
  z-index: 0;
}

#skills .skill-card > i {
  position: relative;
  z-index: 1;
}

#skills .skill-card:hover,
#skills .skill-card.tilt-card:hover {
  transform: translateY(-12px) scale(1.035);
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border-soft));
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--card) 92%, var(--primary)),
    var(--card) 55%
  );
  box-shadow:
    0 22px 48px rgba(0, 0, 0, 0.28),
    0 0 0 1px color-mix(in srgb, var(--primary) 28%, transparent),
    0 0 36px color-mix(in srgb, var(--primary) 22%, transparent);
}

#skills .skill-card:hover::before,
#skills .skill-card.tilt-card:hover::before {
  opacity: 1;
  transform: rotate(25deg) scale(1.05);
}

#skills .skill-card:hover > i,
#skills .skill-card.tilt-card:hover > i {
  transform: scale(1.18) translateY(-4px);
  filter: drop-shadow(0 8px 14px color-mix(in srgb, var(--primary) 45%, transparent));
  color: var(--primary);
}

@media (prefers-reduced-motion: reduce) {
  #skills .skill-card,
  #skills .skill-card:hover,
  #skills .skill-card.tilt-card:hover,
  #skills .skill-card > i,
  #skills .skill-card:hover > i {
    transition-duration: 0.01ms !important;
  }

  #skills .skill-card:hover,
  #skills .skill-card.tilt-card:hover {
    transform: translateY(-4px);
  }

}

.ai-tool-card {
  font-size: 1.15rem;
  font-weight: 700;
  padding: 28px 18px;
}

.ai-tool-card:hover {
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25);
}

.ai-tool-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  margin: 0 auto 14px;
  border-radius: 14px;
  font-size: 2rem;
  line-height: 1;
}

.ai-tool-card .ai-tool-icon i {
  display: inline-block;
}

.ai-tool-icon--chatgpt {
  background: rgba(16, 163, 127, 0.18);
  color: #41d4a8;
}

.ai-tool-icon--claude {
  background: rgba(234, 140, 85, 0.18);
  color: #f0a070;
}

.ai-tool-icon--cursor {
  background: color-mix(in srgb, var(--primary) 22%, transparent);
  color: var(--primary);
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.project-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: color-mix(in srgb, var(--card), #000 35%);
  border-bottom: 1px solid var(--border-soft);
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-card-body {
  padding: 22px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 10px;
}

.project-tag {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 0.28rem 0.55rem;
  border-radius: 7px;
  border: 1px solid var(--border-soft);
  color: var(--muted);
}

.project-tag-php {
  border-color: color-mix(in srgb, #777bb4 55%, var(--border-soft));
  color: #c4b5e8;
  background: color-mix(in srgb, #777bb4 16%, transparent);
}

.project-tag-js {
  border-color: color-mix(in srgb, #f7df1e 45%, var(--border-soft));
  color: #f2e394;
  background: color-mix(in srgb, #f7df1e 14%, transparent);
}

body[data-theme="light"] .project-tag-php {
  color: #5b4a9e;
  background: color-mix(in srgb, #777bb4 12%, transparent);
}

body[data-theme="light"] .project-tag-js {
  color: #7a6a12;
  background: color-mix(in srgb, #f7df1e 18%, transparent);
}

.project-meta-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.1rem;
  margin-top: auto;
  padding-top: 14px;
}

.project-card:hover,
.metric-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.28);
}

.project-card:hover {
  border-color: color-mix(in srgb, var(--primary) 52%, var(--border-soft));
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.25);
}

.project-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.project-card p {
  color: var(--muted);
}

.project-link {
  text-decoration: none;
  color: var(--project-link);
  font-weight: 600;
}

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

.contact-form .form-control {
  background: var(--field-bg);
  border: 1px solid var(--border-soft);
  color: var(--text);
  border-radius: 10px;
  padding: 12px 14px;
}

.contact-form .form-control::placeholder {
  color: var(--field-placeholder);
}

.contact-form .form-control:focus {
  box-shadow: none;
  border-color: var(--primary);
}

.contact-panel {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: 18px;
  padding: 28px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-panel:hover,
.contact-form:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--primary) 52%, var(--border-soft));
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.22);
}

.contact-heading {
  font-size: clamp(2rem, 5vw, 3.3rem);
  line-height: 1.06;
  font-weight: 800;
  max-width: 320px;
}

.contact-meta {
  color: var(--muted);
}

.contact-form .form-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
}

#formStatus {
  color: var(--form-status);
}

.timeline-card {
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  padding: 42px clamp(22px, 4vw, 48px);
  max-width: 1100px;
  margin: 0 auto;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.timeline-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--primary) 52%, var(--border-soft));
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.22);
}

.timeline-card h3 {
  font-size: clamp(1.35rem, 2.8vw, 1.65rem);
  font-weight: 700;
  margin-bottom: 0.35rem;
  line-height: 1.25;
}

.timeline-meta {
  color: var(--muted);
  margin-bottom: 16px;
  font-size: 1.05rem;
  line-height: 1.5;
}

.timeline-intro {
  color: var(--timeline-list);
  font-size: 1.05rem;
  line-height: 1.65;
  max-width: 72ch;
}

.timeline-list-bordered {
  border-top: 1px solid var(--border-soft);
}

.timeline-card ul {
  color: var(--timeline-list);
  font-size: 1.05rem;
  line-height: 1.65;
  padding-left: 1.35rem;
  margin-bottom: 0;
}

.timeline-card ul li + li {
  margin-top: 0.65rem;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

.tilt-card {
  transform: perspective(1000px) rotateX(0) rotateY(0) translateY(0);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.tilt-card:hover {
  transform: perspective(1000px) translateY(-6px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.3);
}

@keyframes floatImage {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@media (max-width: 991px) {
  .hero {
    padding-top: 140px;
  }

  .navbar-nav .nav-link {
    margin-left: 0;
    margin-right: 0;
  }

  .contact-panel {
    padding: 22px;
  }
}

footer {
  border-top: 1px solid var(--footer-border);
  color: var(--muted);
}

.footer-socials {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
}

.footer-socials a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  color: var(--text);
  font-size: 1.22rem;
  text-decoration: none;
  transition: transform 0.25s ease, color 0.25s ease, border-color 0.25s ease, background 0.25s ease,
    box-shadow 0.25s ease;
}

.footer-socials a:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  transform: translateY(-3px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.2);
}

.footer-copy {
  color: var(--muted);
}

#themeToggle {
  padding: 0.45rem 0.85rem;
  font-size: 0.9rem;
  border-radius: 10px;
  border-color: var(--border-soft);
  color: var(--text);
}

#themeToggle i {
  color: #b7c9ff;
}

body[data-theme="light"] #themeToggle i {
  color: #f4b400;
}


@media (min-width:768px) and (max-width:1024px){

    .hero{
        min-height:auto;
        padding-top:120px;
        padding-bottom:60px;
    }

    .hero .row{
        flex-direction:column;
        text-align:center;
    }

    .hero .d-flex{
        justify-content:center;
    }

    .hero-card{
        margin:40px auto 0;
    }
}