/* ============================
   CSS VARIABLES & RESET
   ============================ */
:root {
  --color-bg: #080c14;
  --color-bg-2: #0d1220;
  --color-bg-card: #111827;
  --color-bg-card-hover: #161f30;
  --color-border: rgba(255, 255, 255, 0.07);
  --color-border-hover: rgba(99, 207, 210, 0.4);
  --color-text: #e2e8f0;
  --color-text-muted: #7f8ea3;
  --color-text-faint: #4a5568;
  --color-accent: #44c4c7;
  --color-accent-2: #edc115;
  --color-accent-glow: rgba(68, 196, 199, 0.15);
  --color-accent-glow-intense: rgba(68, 196, 199, 0.3);
  --font-main: 'Inter', system-ui, sans-serif;
  --font-mono: 'Fira Code', monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(68, 196, 199, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

.project-img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

/* ============================
   SCROLLBAR
   ============================ */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-accent);
  border-radius: 10px;
}

/* ============================
   CONTAINER & LAYOUT
   ============================ */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 112px 0;
}

.section-alt {
  background-color: var(--color-bg-2);
  position: relative;
}

/* ============================
   NAVBAR
   ============================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(8, 12, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-text);
  transition: var(--transition);
}

.nav-logo:hover {
  color: var(--color-accent);
}

.logo-bracket {
  color: var(--color-text-muted);
}

.logo-accent {
  color: var(--color-accent);
}

.nav-logo-img {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  filter: invert(1);
  transition: var(--transition);
  box-shadow: 0 0 12px rgba(68, 196, 199, 0.3);
}

.nav-logo:hover .nav-logo-img {
  transform: rotate(-5deg) scale(1.08);
  box-shadow: 0 0 20px rgba(68, 196, 199, 0.5);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
  border-radius: 2px;
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================
   HERO
   ============================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 0 24px;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(68, 196, 199, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(68, 196, 199, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 80%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(68, 196, 199, 0.12) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(237, 193, 21, 0.08) 0%, transparent 70%);
  bottom: -50px;
  left: 10%;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px) scale(1);
  }

  50% {
    transform: translateY(-30px) scale(1.05);
  }
}

.hero-content {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  padding-top: var(--nav-height);
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-accent);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.hero-name {
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  background: linear-gradient(135deg, #ffffff 30%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}

.cursor-blink {
  -webkit-text-fill-color: var(--color-accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

.hero-roles {
  font-size: 1.375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  min-height: 2rem;
}

.role-text {
  color: var(--color-accent);
  font-weight: 600;
  border-right: 2px solid var(--color-accent);
  padding-right: 2px;
}

.hero-desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--color-accent);
  color: #000;
}

.btn-primary:hover {
  background: #5ad5d8;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(68, 196, 199, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
  background: var(--color-accent-glow);
}

.hero-scroll {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-faint);
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
}

.scroll-indicator {
  width: 24px;
  height: 40px;
  border: 1.5px solid var(--color-text-faint);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-dot {
  width: 4px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 2px;
  animation: scrollAnim 2s ease-in-out infinite;
}

@keyframes scrollAnim {

  0%,
  100% {
    transform: translateY(0);
    opacity: 1;
  }

  80% {
    transform: translateY(12px);
    opacity: 0;
  }
}

/* ============================
   SECTION HEADERS
   ============================ */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1rem;
  color: var(--color-text-muted);
}

/* ============================
   ABOUT
   ============================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 80px;
  align-items: center;
}

.about-image {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.image-frame {
  position: relative;
  width: 280px;
  height: 280px;
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
  position: relative;
  z-index: 1;
  filter: grayscale(10%);
  transition: var(--transition);
}

.profile-img:hover {
  filter: grayscale(0%);
  transform: scale(1.02);
}

.image-border-glow {
  position: absolute;
  inset: -3px;
  border-radius: 26px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2), transparent);
  z-index: 0;
  opacity: 0.6;
  animation: borderRotate 6s linear infinite;
}

@keyframes borderRotate {
  0% {
    filter: hue-rotate(0deg);
  }

  100% {
    filter: hue-rotate(360deg);
  }
}

.about-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  padding: 10px 20px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 10px #22c55e;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {

  0%,
  100% {
    box-shadow: 0 0 4px #22c55e;
  }

  50% {
    box-shadow: 0 0 16px #22c55e;
  }
}

.about-text .section-label {
  text-align: left;
  margin-bottom: 6px;
}

.about-text .section-title {
  text-align: left;
  margin-bottom: 20px;
}

.about-desc {
  color: var(--color-text-muted);
  margin-bottom: 16px;
  font-size: 1rem;
}

.about-desc strong {
  color: var(--color-text);
  font-weight: 600;
}

.about-stats {
  display: flex;
  gap: 32px;
  margin: 32px 0;
  padding: 24px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.03em;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.3;
}

/* ============================
   PROJECTS
   ============================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.project-card:hover::before {
  opacity: 1;
}

.project-card.featured {
  border-color: rgba(68, 196, 199, 0.25);
  background: linear-gradient(135deg, var(--color-bg-card) 70%, rgba(68, 196, 199, 0.03) 100%);
}

.card-featured-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-accent-2);
  background: rgba(237, 193, 21, 0.1);
  border: 1px solid rgba(237, 193, 21, 0.3);
  border-radius: 50px;
  padding: 3px 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 4px;
}

.card-icon {
  font-size: 2rem;
  line-height: 1;
}

.card-links {
  display: flex;
  gap: 10px;
}

.icon-link {
  color: var(--color-text-faint);
  transition: var(--transition);
  padding: 4px;
}

.icon-link:hover {
  color: var(--color-accent);
  transform: translateY(-2px);
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.card-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--color-accent);
  background: rgba(68, 196, 199, 0.08);
  border: 1px solid rgba(68, 196, 199, 0.2);
  border-radius: 50px;
  padding: 3px 12px;
  letter-spacing: 0.02em;
  transition: var(--transition);
}

.tag:hover {
  background: rgba(68, 196, 199, 0.15);
}

/* ============================
   SKILLS
   ============================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.skill-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.skill-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.skill-name {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.skill-category {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  margin-top: -8px;
}

.skill-bar-bg {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  height: 6px;
  overflow: hidden;
  margin-top: 4px;
}

.skill-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  border-radius: 4px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================
   CONTACT
   ============================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 860px;
  margin: 0 auto;
}

.contact-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  overflow: hidden;
}

.contact-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  cursor: pointer;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(68, 196, 199, 0.08);
  border: 1px solid rgba(68, 196, 199, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: var(--transition);
}

.contact-card:hover .contact-icon {
  background: rgba(68, 196, 199, 0.15);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.contact-label {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.contact-value {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
}

.contact-arrow {
  font-size: 1.2rem;
  color: var(--color-text-faint);
  transition: var(--transition);
}

.contact-card:hover .contact-arrow {
  color: var(--color-accent);
  transform: translateX(4px);
}

/* ============================
   FOOTER
   ============================ */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
  text-align: center;
}

.footer-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.footer-text strong {
  color: var(--color-text);
}

.footer-sub {
  font-size: 0.8rem;
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.heart {
  color: #f87171;
  display: inline-block;
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.2);
  }
}

/* ============================
   SCROLL REVEAL ANIMATIONS
   ============================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Stagger for project cards */
.project-card[data-index="0"] {
  transition-delay: 0.05s;
}

.project-card[data-index="1"] {
  transition-delay: 0.1s;
}

.project-card[data-index="2"] {
  transition-delay: 0.15s;
}

.project-card[data-index="3"] {
  transition-delay: 0.2s;
}

.project-card[data-index="4"] {
  transition-delay: 0.25s;
}

.project-card[data-index="5"] {
  transition-delay: 0.3s;
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1.4fr;
    gap: 48px;
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(8, 12, 20, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    padding: 16px 0;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-link {
    padding: 16px 24px;
    width: 100%;
    font-size: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-image {
    order: -1;
  }

  .image-frame {
    width: 200px;
    height: 200px;
  }

  .about-stats {
    gap: 20px;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .about-stats {
    flex-direction: column;
    gap: 16px;
  }
}