/* =========================================================
   MarcornDev Portfolio — vanilla CSS, no framework
   ========================================================= */

:root {
  /* Brand */
  --primary: #4f1d95;
  --secondary: #6d28d9;
  --dark: #2e1065;
  --white: #ffffff;
  --bg: #f8f7fc;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e7e3f3;

  /* Type */
  --font-display: "Sora", sans-serif;
  --font-body: "Inter", sans-serif;

  /* Layout */
  --wrap: 1140px;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 12px 30px -14px rgba(46, 16, 101, 0.25);
  --shadow-sm: 0 4px 14px -6px rgba(46, 16, 101, 0.18);

  --header-h: 76px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  margin: 0;
  color: var(--dark);
  line-height: 1.2;
}
p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary);
  color: var(--white);
  padding: 10px 16px;
  z-index: 200;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease,
    color 0.18s ease;
}
.btn-primary {
  background: var(--secondary);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-outline {
  background: transparent;
  border-color: var(--secondary);
  color: var(--secondary);
}
.btn-outline:hover {
  background: var(--secondary);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-small {
  padding: 9px 18px;
  font-size: 0.85rem;
}
.btn-full {
  width: 100%;
}

/* ---------- Top header / Hero (profile intro, like original template) ---------- */
.top-header {
  position: relative;
  background:
    radial-gradient(
      circle at 20% 20%,
      rgba(255, 255, 255, 0.08),
      transparent 45%
    ),
    linear-gradient(150deg, rgba(79, 29, 149, 0.55), rgba(46, 16, 101, 0.65)),
    url("../img/hero-bg.png") center/cover no-repeat;
  color: var(--white);
  text-align: center;
  padding: 90px 0 80px;
}
.top-header-inner {
  max-width: 640px;
}

.profile-frame {
  width: 96px;
  height: 96px;
  margin: 0 auto 26px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  overflow: hidden;
}
.profile-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.top-header h1 {
  color: var(--white);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 10px;
}
.top-header-role {
  font-size: 1rem;
  color: #d8cdf0;
  margin-bottom: 18px;
}
.top-header-role strong {
  color: var(--white);
}

.typed-line {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  color: #e6defa;
  min-height: 1.6em;
  margin-bottom: 30px;
}
.typed-cursor {
  display: inline-block;
  margin-left: 2px;
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.btn-light {
  background: var(--white);
  color: var(--primary);
}
.btn-light:hover {
  background: #ede6fb;
  transform: translateY(-2px);
}
.btn-outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.55);
  color: var(--white);
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

/* ---------- Header / Nav (sticky, sits below hero) ---------- */
.site-header {
  position: sticky;
  top: 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  z-index: 100;
  background: rgba(248, 247, 252, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.25s ease;
}
.site-header.is-scrolled {
  box-shadow: 0 6px 20px -16px rgba(46, 16, 101, 0.35);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--dark);
  flex-shrink: 0;
}
.brand-mark {
  color: var(--secondary);
  display: inline-flex;
}
.brand-name em {
  font-style: normal;
  color: var(--secondary);
}

.main-nav ul {
  display: flex;
  gap: 30px;
}
.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 6px 0;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: width 0.2s ease;
}
.nav-link:hover::after,
.nav-link.is-active::after {
  width: 100%;
}
.nav-link.is-active {
  color: var(--secondary);
}

.social-nav {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}
.social-nav a {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--secondary);
}
.social-nav a:hover {
  background: var(--secondary);
  color: var(--white);
  border-color: var(--secondary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition:
    transform 0.25s ease,
    opacity 0.25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Sections (generic) ---------- */
.section {
  padding: 96px 0;
}
.section-muted {
  background: var(--white);
}
.section-dark {
  background: var(--dark);
}
.section-dark p,
.section-dark .contact-list a {
  color: #d8cdf0;
}

.section-head {
  max-width: 620px;
  margin: 0 0 48px;
}
.section-title {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 700;
}
.text-white {
  color: var(--white);
}
.text-light {
  color: #d8cdf0;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 64px;
  align-items: center;
}
.about-frame {
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #ede6fb, #f8f7fc);
  border: 1px solid var(--border);
  overflow: hidden;
}
.about-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-content p {
  max-width: 560px;
}

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.skill-group h3 {
  font-size: 1.1rem;
  margin-bottom: 22px;
}
.skill-bar {
  margin-bottom: 18px;
}
.skill-bar-head {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 7px;
}
.skill-bar-head span:last-child {
  color: var(--secondary);
}
.progress {
  height: 8px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--secondary), var(--primary));
  border-radius: 999px;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1s ease;
}
.skill-block.in-view .progress-bar {
  transform: scaleX(1);
}

.skills-grid--wide {
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.skill-block h3 {
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
}

.platform-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.platform-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
}
.platform-icon {
  font-size: 1.3rem;
  line-height: 1;
}
.platform-card h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}
.platform-card p {
  font-size: 0.85rem;
  margin: 0;
}

@media (max-width: 980px) {
  .skills-grid--wide {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 640px) {
  .skills-grid--wide {
    grid-template-columns: 1fr;
  }
}

/* ---------- Projects ---------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 760px;
  margin: 0 auto;
}
.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease;
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.project-thumb {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.project-thumb::before {
  content: attr(data-label);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.6rem;
  color: rgba(255, 255, 255, 0.28);
}

.thumb-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: rgba(46, 16, 101, 0.55);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.project-card:hover .thumb-overlay,
.project-card:focus-within .thumb-overlay {
  opacity: 1;
}

.thumb-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--white);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transform: translateY(10px);
  transition: transform 0.25s ease;
}
.project-card:hover .thumb-icon,
.project-card:focus-within .thumb-icon {
  transform: translateY(0);
}
.thumb-icon:hover {
  background: var(--secondary);
  color: var(--white);
}

.project-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.project-body h3 {
  font-size: 1.15rem;
}
.project-body p {
  font-size: 0.93rem;
  margin-bottom: 4px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}
.tag-list li {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--secondary);
  background: #f1ecfb;
  padding: 5px 10px;
  border-radius: 999px;
}
.project-links {
  display: flex;
  gap: 10px;
  margin-top: auto;
}
.project-links .btn {
  width: 100%;
  text-align: center;
}

.btn-disabled {
  background: var(--border);
  color: var(--muted);
  cursor: default;
  pointer-events: none;
}

.thumb-icon-disabled {
  opacity: 0.6;
  cursor: default;
}

/* ---------- Services ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}
.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.service-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}
.service-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}
.service-card p {
  font-size: 0.9rem;
  margin: 0;
}

.why-row {
  border-top: 1px solid var(--border);
  padding-top: 40px;
}
.why-title {
  font-size: 1.2rem;
  margin-bottom: 22px;
}
.why-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.why-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.why-list strong {
  color: var(--dark);
  font-size: 0.95rem;
}
.why-list span {
  color: var(--muted);
  font-size: 0.82rem;
}

/* ---------- Testimonials ---------- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}
.testimonial-card::before {
  content: "\201C";
  position: absolute;
  top: 12px;
  right: 20px;
  font-family: Georgia, serif;
  font-size: 3.4rem;
  color: #ede6fb;
  line-height: 1;
}
.testimonial-card p {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 20px;
}
.testimonial-card footer {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-card footer div {
  display: flex;
  flex-direction: column;
}
.testimonial-card strong {
  font-size: 0.88rem;
  color: var(--dark);
}
.testimonial-card span {
  font-size: 0.78rem;
  color: var(--muted);
}
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-list {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-list a,
.contact-list span {
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--white);
}
.contact-list a:hover {
  color: #c4b5fd;
}

.contact-form {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 32px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field {
  margin-bottom: 16px;
}
.field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: #d8cdf0;
  margin-bottom: 6px;
}
.field input,
.field textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
}
.field input::placeholder,
.field textarea::placeholder {
  color: rgba(255, 255, 255, 0.4);
}
.field input:focus,
.field textarea:focus {
  border-color: var(--secondary);
  outline: none;
}

.form-note {
  margin: 14px 0 0;
  font-size: 0.85rem;
  color: #c4b5fd;
  min-height: 1.2em;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #221056;
  padding: 48px 0 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 32px;
}
.brand-footer {
  color: var(--white);
}
.brand-footer .brand-mark {
  color: #c4b5fd;
}
.brand-footer .brand-name em {
  color: #c4b5fd;
}

.footer-nav {
  display: flex;
  gap: 22px;
}
.footer-nav a {
  font-size: 0.88rem;
  color: #c9bee6;
}
.footer-nav a:hover {
  color: var(--white);
}

.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: #c9bee6;
}
.footer-social a:hover {
  background: var(--secondary);
  color: var(--white);
  border-color: var(--secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
}
.footer-bottom p {
  margin: 0;
  font-size: 0.82rem;
  color: #a796ce;
  text-align: center;
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--secondary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    visibility 0.25s ease;
  z-index: 90;
}
.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--primary);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn,
  .project-card,
  .service-card,
  .back-to-top {
    transition: none;
  }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .why-list {
    grid-template-columns: repeat(3, 1fr);
  }
  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 260px 1fr;
    gap: 40px;
  }
}

@media (max-width: 820px) {
  .social-nav {
    display: none;
  }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .main-nav.is-open {
    max-height: 400px;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 20px;
  }
  .main-nav ul li {
    border-bottom: 1px solid var(--border);
  }
  .main-nav a {
    display: block;
    padding: 14px 0;
  }
  .nav-toggle {
    display: flex;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-frame {
    max-width: 280px;
    margin: 0 auto;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .top-header {
    padding: 60px 0 50px;
  }
  .profile-frame {
    width: 76px;
    height: 76px;
  }
  .section {
    padding: 64px 0;
  }
  .skills-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .project-grid {
    grid-template-columns: 1fr;
  }
  .service-grid {
    grid-template-columns: 1fr;
  }
  .why-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}