/* ===========================
   IMPORT FONT
=========================== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

/* ===========================
   RESET & BASE
=========================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #0ea5e9;
  --primary-dark: #0284c7;
  --accent: #6366f1;
  --accent2: #ec4899;
  --bg-body: #e8f0f7;
  --bg-nav: rgba(224,234,244,0.9);
  --bg-footer: #dce8f2;
  --bg-card: #f0f6fc;
  --border: rgba(14,165,233,0.2);
  --text: #0f172a;
  --text-muted: #64748b;
  --glow: rgba(14,165,233,0.15);
  --glow-accent: rgba(99,102,241,0.15);
  --aurora1: rgba(14,165,233,0.06);
  --aurora2: rgba(99,102,241,0.05);
  --card-shadow: 0 4px 24px rgba(15,23,42,0.08);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  background: var(--bg-body);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

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

/* ===========================
   AURORA BACKGROUND
=========================== */
body::before {
  content: '';
  position: fixed;
  width: 700px; height: 700px;
  background: radial-gradient(circle, var(--aurora1) 0%, transparent 70%);
  top: -200px; left: -200px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  animation: auroraMove1 12s ease-in-out infinite alternate;
}

body::after {
  content: '';
  position: fixed;
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--aurora2) 0%, transparent 70%);
  bottom: -150px; right: -150px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  animation: auroraMove2 15s ease-in-out infinite alternate;
}

@keyframes auroraMove1 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(80px, 60px) scale(1.2); }
}

@keyframes auroraMove2 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-60px, -80px) scale(1.15); }
}

/* ===========================
   PARTICLES
=========================== */
#particles-js {
  position: fixed;
  width: 100%; height: 100%;
  top: 0; left: 0;
  z-index: -1;
  pointer-events: none;
}

/* ===========================
   NAVBAR
=========================== */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 60px;
  background: var(--bg-nav);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 999;
  transition: background 0.4s ease;
  box-shadow: 0 2px 20px rgba(15,23,42,0.06);
}

.logo {
  font-size: 24px;
  font-weight: 800;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent2));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 3px;
  animation: shimmer 4s linear infinite;
}

@keyframes shimmer {
  0%   { background-position: 0% center; }
  100% { background-position: 200% center; }
}

nav ul { display: flex; gap: 8px; list-style: none; }

nav ul li a {
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.3s ease;
  position: relative;
}

nav ul li a:hover, nav ul li a.active {
  color: white;
  background: rgba(56,189,248,0.12);
  box-shadow: 0 0 18px rgba(56,189,248,0.18);
}

nav ul li a::after {
  content: "";
  position: absolute;
  bottom: 2px; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  transition: width 0.3s ease;
}

nav ul li a:hover::after { width: 55%; }

/* Theme Switch */
.theme-switch {
  width: 72px; height: 36px;
  background: rgba(255,255,255,0.08);
  border-radius: 50px;
  position: relative;
  cursor: pointer;
  transition: 0.4s;
  border: 1px solid rgba(255,255,255,0.15);
}

.switch-circle {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  border-radius: 50%;
  position: absolute;
  top: 4px; left: 4px;
  transition: 0.4s cubic-bezier(0.68,-0.55,0.27,1.55);
  box-shadow: 0 0 12px rgba(251,191,36,0.6);
}

.dark .theme-switch { background: rgba(99,102,241,0.2); }
.dark .switch-circle {
  left: 40px;
  background: linear-gradient(135deg, #818cf8, #6366f1);
  box-shadow: 0 0 12px rgba(129,140,248,0.6);
}

/* ===========================
   HERO SECTION
=========================== */
.hero {
  text-align: center;
  padding: 40px 20px 60px;
  position: relative;
  animation: heroFadeIn 1s ease both;
}

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Foto */
.foto-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 220px;
  height: 220px;
  margin: 0 auto 10px;
}

.foto-ring {
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 3px solid transparent;
  background: linear-gradient(135deg, var(--primary), var(--accent), var(--accent2)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  animation: spin 6s linear infinite;
}

/* Second outer glow ring */
.foto-wrapper::after {
  content: '';
  position: absolute;
  inset: -26px;
  border-radius: 50%;
  border: 1px solid rgba(56,189,248,0.15);
  animation: spin 14s linear infinite reverse;
}

@keyframes spin { to { transform: rotate(360deg); } }

.foto {
  width: 220px; height: 220px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(56,189,248,0.4);
  box-shadow:
    0 0 40px rgba(56,189,248,0.35),
    0 0 80px rgba(56,189,248,0.15),
    0 0 120px rgba(129,140,248,0.1);
  transition: 0.5s ease;
  display: block;
}

.foto:hover {
  transform: scale(1.06);
  box-shadow:
    0 0 60px rgba(56,189,248,0.6),
    0 0 120px rgba(56,189,248,0.3),
    0 0 160px rgba(129,140,248,0.2);
}

/* Badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, rgba(56,189,248,0.12), rgba(129,140,248,0.12));
  border: 1px solid rgba(56,189,248,0.35);
  color: var(--primary);
  padding: 7px 22px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  margin-top: 22px;
  margin-bottom: 16px;
  letter-spacing: 0.8px;
  backdrop-filter: blur(10px);
}

/* Hero headings */
.hero h1 {
  font-size: 54px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 5px;
  background: linear-gradient(135deg, var(--text) 0%, var(--primary) 60%, var(--accent) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s linear infinite;
}

.hero h2 {
  color: var(--primary);
  font-size: 20px;
  font-weight: 400;
  margin: 14px 0;
  min-height: 28px;
  letter-spacing: 0.3px;
}

.hero > p {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 400px;
  margin: 0 auto 8px;
  line-height: 1.7;
}

/* ===========================
   HERO SOCIAL
=========================== */
.hero-social {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 20px 0 10px;
}

.hero-social a {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(56,189,248,0.07);
  border: 1px solid rgba(56,189,248,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
}

.hero-social a:hover {
  background: rgba(56,189,248,0.2);
  border-color: var(--primary);
  transform: translateY(-5px) rotate(-5deg);
  box-shadow: 0 10px 25px rgba(56,189,248,0.35);
  color: white;
}

/* ===========================
   TECH STACK
=========================== */
.tech-stack { margin: 24px auto 28px; max-width: 500px; }

.tech-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.tech-icons {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tech-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 13px 15px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(56,189,248,0.12);
  border-radius: 16px;
  transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1);
  min-width: 58px;
  backdrop-filter: blur(10px);
}

.tech-icon:hover {
  background: rgba(56,189,248,0.1);
  border-color: rgba(56,189,248,0.5);
  transform: translateY(-8px) scale(1.08);
  box-shadow: 0 12px 28px rgba(56,189,248,0.25);
}

.tech-icon i { font-size: 28px; line-height: 1; }

.tech-icon span {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* ===========================
   HERO BUTTONS
=========================== */
.hero-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 8px;
}

.btn-primary {
  padding: 14px 34px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 8px 28px rgba(56,189,248,0.4);
  font-family: 'Poppins', sans-serif;
  text-decoration: none;
  display: inline-block;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::before { left: 100%; }
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(56,189,248,0.55);
}

.btn-outline {
  padding: 14px 34px;
  background: transparent;
  color: var(--primary);
  border: 1.5px solid rgba(56,189,248,0.4);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s ease;
  font-family: 'Poppins', sans-serif;
  text-decoration: none;
  display: inline-block;
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(56,189,248,0.1);
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(56,189,248,0.2);
}

/* ===========================
   SCROLL ARROW
=========================== */
.scroll-arrow {
  margin-top: 42px;
  display: flex;
  flex-direction: column;
  align-items: center;
  opacity: 0.5;
}

.scroll-arrow span {
  display: block;
  width: 14px; height: 14px;
  border-right: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  transform: rotate(45deg);
  animation: scrollBounce 1.5s ease infinite;
}

.scroll-arrow span:nth-child(2) {
  animation-delay: 0.2s;
  margin-top: -7px;
}

@keyframes scrollBounce {
  0%, 100% { opacity: 0.15; transform: rotate(45deg) translate(-4px,-4px); }
  50%       { opacity: 1;    transform: rotate(45deg) translate(4px, 4px); }
}

/* ===========================
   STATS SECTION
=========================== */
.stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 10px 40px 70px;
  flex-wrap: wrap;
}

.box {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  padding: 28px 38px;
  border-radius: 22px;
  text-align: center;
  transition: all 0.35s ease;
  min-width: 165px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

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

.box:hover::before { opacity: 1; }
.box:hover {
  transform: translateY(-7px);
  box-shadow: 0 18px 40px rgba(56,189,248,0.2);
  border-color: rgba(56,189,248,0.4);
}

.box h3 {
  font-size: 26px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.box p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ===========================
   SECTION LABEL
=========================== */
.section-label {
  display: inline-block;
  background: linear-gradient(135deg, rgba(129,140,248,0.15), rgba(56,189,248,0.1));
  border: 1px solid rgba(129,140,248,0.35);
  color: var(--accent);
  padding: 5px 18px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  margin-bottom: 15px;
  backdrop-filter: blur(8px);
}

/* ===========================
   SERVICES SECTION
=========================== */
.services {
  padding: 80px 60px;
  text-align: center;
  position: relative;
}

.services h1, .projects-section h1, .about h1 {
  font-size: 42px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.services p.section-desc {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 500px;
  margin: 0 auto 55px;
  line-height: 1.8;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
  max-width: 1000px;
  margin: 0 auto;
}

.service-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  padding: 42px 32px;
  border-radius: 26px;
  transition: all 0.4s cubic-bezier(0.34,1.2,0.64,1);
  position: relative;
  overflow: hidden;
  text-align: left;
  box-shadow: var(--card-shadow);
}

/* glow blob inside card */
.service-card::after {
  content: '';
  position: absolute;
  width: 120px; height: 120px;
  background: radial-gradient(circle, rgba(56,189,248,0.12), transparent 70%);
  bottom: -30px; right: -30px;
  border-radius: 50%;
  transition: all 0.5s ease;
}

.service-card:hover::after {
  width: 180px; height: 180px;
  bottom: -40px; right: -40px;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent2));
  opacity: 0;
  transition: opacity 0.4s ease;
}

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

.service-card:hover {
  transform: translateY(-14px);
  border-color: rgba(56,189,248,0.4);
  box-shadow:
    0 24px 60px rgba(56,189,248,0.18),
    0 0 0 1px rgba(56,189,248,0.08);
}

.service-card h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
}

.service-card p {
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 14.5px;
}

/* ===========================
   FOOTER
=========================== */
footer {
  text-align: center;
  padding: 35px 30px;
  background: var(--bg-footer);
  border-top: 1px solid rgba(56,189,248,0.08);
  margin-top: auto;
  position: relative;
  transition: background 0.4s ease;
}

footer::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 200px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

footer p { color: var(--text-muted); font-size: 14px; line-height: 1.9; }
footer p span { color: var(--primary); font-weight: 600; }

/* ===========================
   ABOUT PAGE
=========================== */
.about {
  padding: 70px 60px;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.about-banner {
  text-align: center;
  margin-bottom: 55px;
  animation: heroFadeIn 0.8s ease both;
}

.about-banner h1 {
  font-size: 52px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text), var(--primary), var(--accent));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s linear infinite;
  margin-bottom: 10px;
}

.about-banner p { color: var(--text-muted); font-size: 17px; }

.intro {
  max-width: 780px;
  margin: 0 auto 55px;
  text-align: center;
  font-size: 16.5px;
  line-height: 2;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 32px 38px;
  border-radius: 24px;
  backdrop-filter: blur(16px);
  position: relative;
  box-shadow: var(--card-shadow);
}

.intro::before {
  content: '"';
  position: absolute;
  top: -10px; left: 28px;
  font-size: 80px;
  color: rgba(56,189,248,0.15);
  font-family: Georgia, serif;
  line-height: 1;
}

.intro b { color: var(--primary); }

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px;
  margin-bottom: 55px;
}

.about-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  padding: 32px;
  border-radius: 24px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.about-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  opacity: 0;
  transition: opacity 0.4s;
}

.about-card:hover::before { opacity: 1; }
.about-card:hover {
  transform: translateY(-10px);
  border-color: rgba(56,189,248,0.4);
  box-shadow: 0 18px 45px rgba(56,189,248,0.15);
}

.about-card h2 { color: var(--text); font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.about-card p { color: var(--text-muted); line-height: 1.8; font-size: 14.5px; }

/* ===========================
   SKILLS (ABOUT PAGE)
=========================== */
.skills-section { max-width: 780px; margin: 0 auto 55px; }

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.skill-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--bg-card);
  border-radius: 14px;
  border: 1px solid rgba(56,189,248,0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.skill-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56,189,248,0.12);
}

.skill-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.skill-badge {
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 50px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.skill-badge.beginner {
  background: rgba(251,191,36,0.15);
  color: #fbbf24;
  border: 1px solid rgba(251,191,36,0.35);
}

.skill-badge.intermediate {
  background: rgba(56,189,248,0.15);
  color: var(--primary);
  border: 1px solid rgba(56,189,248,0.35);
}

.skill-badge.advanced {
  background: rgba(99,102,241,0.15);
  color: #818cf8;
  border: 1px solid rgba(99,102,241,0.35);
}

/* ===========================
   ABOUT STATS
=========================== */
.stats-about {
  display: flex;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
}

.stat {
  width: 180px;
  padding: 30px 20px;
  border-radius: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  text-align: center;
  transition: all 0.35s ease;
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.stat::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent2));
  opacity: 0;
  transition: opacity 0.3s;
}

.stat:hover::before { opacity: 1; }
.stat:hover {
  transform: translateY(-9px) scale(1.04);
  box-shadow: 0 18px 40px var(--glow);
  border-color: rgba(56,189,248,0.4);
}

.stat h2 {
  font-size: 38px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat p { color: var(--text-muted); font-size: 13px; margin-top: 6px; }

/* ===========================
   PROJECT PAGE
=========================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 40px;
}

.projects-section {
  text-align: center;
  margin-bottom: 55px;
  animation: heroFadeIn 0.8s ease both;
}

.projects-section h1 {
  font-size: 44px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto 55px;
  line-height: 1.8;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 26px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.34,1.2,0.64,1);
  position: relative;
  box-shadow: var(--card-shadow);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent2));
  opacity: 0;
  transition: 0.4s;
  z-index: 1;
}

.project-card:hover::before { opacity: 1; }
.project-card:hover {
  transform: translateY(-14px);
  box-shadow:
    0 28px 65px rgba(56,189,248,0.2),
    0 0 0 1px rgba(56,189,248,0.08);
  border-color: rgba(56,189,248,0.4);
}

/* Image overlay */
.project-img-wrap {
  position: relative;
  overflow: hidden;
}

.project-img-wrap img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.project-card:hover .project-img-wrap img { transform: scale(1.08); }

.project-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(8,13,26,0.85));
}

.project-content { padding: 24px 26px 26px; }

.project-content h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.project-content p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.75;
}

.project-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }

.tag {
  padding: 4px 13px;
  background: rgba(56,189,248,0.08);
  border: 1px solid rgba(56,189,248,0.25);
  color: var(--primary);
  border-radius: 50px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.4px;
  transition: all 0.2s ease;
}

.tag:hover {
  background: rgba(56,189,248,0.2);
  border-color: var(--primary);
}

.project-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 11px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 6px 22px rgba(56,189,248,0.3);
  width: 100%;
  justify-content: center;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.project-btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.project-btn:hover::before { left: 100%; }
.project-btn:hover {
  box-shadow: 0 12px 32px rgba(56,189,248,0.5);
  transform: translateY(-2px);
}

/* ===========================
   CONTACT PAGE
=========================== */
.contact-section {
  padding: 70px 60px;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  animation: heroFadeIn 0.8s ease both;
}

.contact-section h1 {
  font-size: 50px;
  font-weight: 800;
  margin-bottom: 15px;
  background: linear-gradient(135deg, var(--text), var(--primary), var(--accent));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s linear infinite;
}

.contact-desc {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 600px;
  margin-bottom: 55px;
  line-height: 1.85;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.contact-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  padding: 32px 26px;
  border-radius: 24px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  text-align: center;
  box-shadow: var(--card-shadow);
}

.contact-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 24px;
  background: radial-gradient(circle at 50% 120%, rgba(56,189,248,0.08), transparent 65%);
  opacity: 0;
  transition: opacity 0.4s;
}

.contact-card:hover::after { opacity: 1; }

.contact-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent2));
  opacity: 0;
  transition: 0.4s;
}

.contact-card:hover::before { opacity: 1; }
.contact-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 22px 55px rgba(56,189,248,0.18);
  border-color: rgba(56,189,248,0.4);
}

.contact-icon {
  font-size: 36px;
  margin-bottom: 14px;
  display: block;
}

.contact-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.skills-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 28px;
  text-align: center;
}

.contact-card p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 22px;
  line-height: 1.6;
}

.contact-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 11px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
  box-shadow: 0 6px 22px rgba(56,189,248,0.28);
  position: relative;
  overflow: hidden;
}

.contact-card a::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.contact-card a:hover::before { left: 100%; }
.contact-card a:hover {
  box-shadow: 0 12px 32px rgba(56,189,248,0.5);
  transform: translateY(-2px);
}

/* ===========================
   CUSTOM CURSOR
=========================== */
* { cursor: none; }

.cursor-dot {
  width: 8px; height: 8px;
  background: var(--primary);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 12px var(--primary), 0 0 24px rgba(56,189,248,0.5);
}

.cursor-ring {
  width: 36px; height: 36px;
  border: 1.5px solid rgba(56,189,248,0.55);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition: width 0.25s ease, height 0.25s ease, border-color 0.25s ease;
}

.cursor-ring.hovered {
  width: 54px; height: 54px;
  border-color: var(--accent);
  background: rgba(129,140,248,0.05);
}

/* ===========================
   BACK TO TOP
=========================== */
.back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  border: none;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.35s ease;
  box-shadow: 0 8px 28px rgba(56,189,248,0.45);
  cursor: none;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 40px rgba(56,189,248,0.65);
}

/* ===========================
   SCROLL ANIMATION
=========================== */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   DARK MODE
=========================== */
body.dark {
  --primary: #38bdf8;
  --primary-dark: #0ea5e9;
  --accent: #818cf8;
  --accent2: #f472b6;
  --bg-body: #04070f;
  --bg-nav: rgba(2,4,10,0.85);
  --bg-footer: rgba(0,0,0,0.6);
  --bg-card: rgba(255,255,255,0.04);
  --border: rgba(56,189,248,0.18);
  --aurora1: rgba(56,189,248,0.1);
  --aurora2: rgba(129,140,248,0.08);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --glow: rgba(56,189,248,0.4);
  --card-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

/* ===========================
   HAMBURGER MENU (MOBILE)
=========================== */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(248,250,252,0.97);
  z-index: 9990;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  backdrop-filter: blur(20px);
}

body.dark .mobile-menu { background: rgba(4,7,15,0.97); }
.mobile-menu.open { display: flex; }

.mobile-menu a {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 1px;
  transition: color 0.2s ease;
}

.mobile-menu a:hover,
.mobile-menu a.active { color: var(--primary); }

.mobile-menu-close {
  position: absolute;
  top: 20px; right: 20px;
  font-size: 28px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

@media (max-width: 768px) {
  .hamburger { display: flex; }
}

/* ===========================
   RESPONSIVE
=========================== */

/* Tablet (max 768px) */
@media (max-width: 768px) {
  /* Navbar */
  nav {
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
  }
  .logo { font-size: 20px; letter-spacing: 2px; }
  nav ul { display: none; } /* disembunyikan, pakai hamburger di bawah */
  .theme-switch { width: 60px; height: 30px; }
  .switch-circle { width: 22px; height: 22px; top: 4px; left: 4px; }
  .dark .switch-circle { left: 34px; }

  /* Hero */
  .hero { padding: 40px 20px 30px; }
  .hero h1 { font-size: 30px; line-height: 1.2; }
  .hero h2 { font-size: 15px; margin: 10px 0; }
  .hero > p { font-size: 13px; max-width: 100%; }
  .foto { width: 160px; height: 160px; }
  .foto-wrapper { width: 160px; height: 160px; }

  /* Hero social */
  .hero-social { gap: 10px; margin: 14px 0 8px; }
  .hero-social a { width: 38px; height: 38px; font-size: 16px; }

  /* Tech stack */
  .tech-stack { margin: 18px auto 22px; }
  .tech-icons { gap: 8px; }
  .tech-icon { padding: 9px 10px; min-width: 48px; gap: 5px; }
  .tech-icon i { font-size: 20px; }
  .tech-icon span { font-size: 9px; }

  /* Buttons */
  .hero-buttons { gap: 10px; margin-top: 12px; }
  .btn-primary, .btn-outline { padding: 12px 26px; font-size: 14px; }

  /* Scroll arrow */
  .scroll-arrow { margin-top: 28px; }

  /* Stats */
  .stats { padding: 10px 16px 40px; gap: 12px; }
  .box { min-width: 0; flex: 1; padding: 18px 14px; border-radius: 16px; }
  .box h3 { font-size: 20px; }
  .box p { font-size: 12px; }

  /* Services */
  .services { padding: 50px 16px; }
  .services h1 { font-size: 28px; }
  .services p.section-desc { font-size: 14px; margin-bottom: 30px; }
  .service-grid { gap: 14px; }
  .service-card { padding: 28px 22px; border-radius: 20px; }
  .service-card h2 { font-size: 17px; }
  .service-card p { font-size: 13.5px; }

  /* About */
  .about { padding: 36px 16px; }
  .about-banner h1 { font-size: 32px; }
  .about-banner p { font-size: 14px; }
  .intro { padding: 24px 20px; font-size: 14.5px; }
  .intro::before { font-size: 60px; top: -8px; left: 16px; }
  .about-grid { grid-template-columns: 1fr; gap: 14px; }
  .about-card { padding: 24px; border-radius: 18px; }
  .skills-section { padding: 0 4px; }
  .skills-section h2 { font-size: 18px; }
  .stats-about { gap: 12px; }
  .stat { width: 130px; padding: 20px 14px; }
  .stat h2 { font-size: 30px; }

  /* Projects */
  .container { padding: 36px 16px; }
  .projects-section h1 { font-size: 28px; }
  .subtitle { font-size: 14px; margin-bottom: 28px; }
  .projects-grid { grid-template-columns: 1fr; gap: 18px; }
  .project-content { padding: 18px 20px 22px; }
  .project-content h3 { font-size: 16px; }

  /* Contact */
  .contact-section { padding: 36px 16px; }
  .contact-section h1 { font-size: 30px; }
  .contact-desc { font-size: 14px; margin-bottom: 28px; }
  .contact-grid { grid-template-columns: 1fr; gap: 14px; }
  .contact-card { padding: 24px 20px; border-radius: 18px; }
  .contact-icon { font-size: 28px; margin-bottom: 10px; }

  /* Footer */
  footer { padding: 24px 16px; }
  footer p { font-size: 13px; }

  /* Back to top */
  .back-to-top { bottom: 18px; right: 18px; width: 42px; height: 42px; font-size: 16px; }

  /* Cursor nonaktif di touch */
  .cursor-dot, .cursor-ring { display: none; }
  * { cursor: auto; }
}

/* Mobile kecil (max 480px) */
@media (max-width: 480px) {
  .hero h1 { font-size: 26px; }
  .hero h2 { font-size: 14px; }
  .foto { width: 140px; height: 140px; }
  .foto-wrapper { width: 140px; height: 140px; }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }
  .btn-primary, .btn-outline {
    width: 100%;
    max-width: 300px;
    text-align: center;
    justify-content: center;
  }

  .stats { flex-direction: row; flex-wrap: wrap; }
  .box { min-width: calc(50% - 8px); }

  .about-banner h1 { font-size: 28px; }
  .contact-section h1 { font-size: 26px; }
  .projects-section h1 { font-size: 24px; }
  .stat { width: calc(50% - 8px); }
}

/* Mobile sangat kecil (max 360px) */
@media (max-width: 360px) {
  .hero h1 { font-size: 22px; }
  nav { padding: 10px 12px; }
  .logo { font-size: 18px; }
  .tech-icon { padding: 8px; min-width: 44px; }
  .tech-icon i { font-size: 18px; }
  .hero-social a { width: 34px; height: 34px; font-size: 14px; }
}

/* ===========================
   SCROLL PROGRESS BAR
=========================== */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent2));
  z-index: 99999;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(56,189,248,0.6);
}

/* ===========================
   RIPPLE EFFECT
=========================== */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  transform: scale(0);
  animation: rippleAnim 0.55s linear;
  pointer-events: none;
}

@keyframes rippleAnim {
  to { transform: scale(4); opacity: 0; }
}

/* ===========================
   TOAST NOTIFICATION
=========================== */
#toast-container {
  position: fixed;
  bottom: 90px;
  right: 28px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: var(--bg-card);
  border: 1px solid rgba(56,189,248,0.35);
  color: var(--text);
  padding: 13px 20px;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 8px 28px rgba(0,0,0,0.18);
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: auto;
  max-width: 280px;
}

.toast.show {
  opacity: 1;
  transform: translateX(0);
}

.toast-icon {
  font-size: 18px;
  flex-shrink: 0;
}

/* ===========================
   SKILL BADGE TOOLTIP
=========================== */
.skill-item {
  position: relative;
}

.skill-tooltip {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  background: var(--bg-card);
  border: 1px solid rgba(56,189,248,0.3);
  color: var(--text-muted);
  font-size: 12px;
  padding: 8px 14px;
  border-radius: 10px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  z-index: 10;
  box-shadow: 0 6px 20px rgba(0,0,0,0.12);
  backdrop-filter: blur(12px);
}

.skill-tooltip::after {
  content: '';
  position: absolute;
  top: 100%; right: 18px;
  border: 5px solid transparent;
  border-top-color: rgba(56,189,248,0.3);
}

.skill-item:hover .skill-tooltip {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   PROJECT FILTER
=========================== */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.filter-btn {
  padding: 8px 22px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  border: 1.5px solid rgba(56,189,248,0.3);
  background: transparent;
  color: var(--text-muted);
  font-family: 'Poppins', sans-serif;
  transition: all 0.25s ease;
  cursor: none;
  position: relative;
  overflow: hidden;
}

.filter-btn:hover,
.filter-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border-color: transparent;
  box-shadow: 0 6px 22px rgba(56,189,248,0.35);
  transform: translateY(-2px);
}

.project-card {
  transition: all 0.4s cubic-bezier(0.34,1.2,0.64,1), opacity 0.35s ease, transform 0.35s ease;
}

.project-card.hidden {
  opacity: 0;
  transform: scale(0.92);
  pointer-events: none;
  display: none;
}

.projects-grid {
  position: relative;
}

/* ===========================
   PARALLAX BANNER
=========================== */
.parallax-banner {
  will-change: transform;
  transition: transform 0.05s linear;
}

/* ===========================
   COUNTER ANIMATION (ABOUT STATS)
=========================== */
.stat h2 {
  display: inline-block;
}

/* ===========================
   RESPONSIVE — new features
=========================== */
@media (max-width: 768px) {
  .filter-bar { gap: 8px; }
  .filter-btn { padding: 7px 16px; font-size: 12px; }
  .skill-tooltip { right: 0; font-size: 11px; white-space: normal; max-width: 180px; }
  #toast-container { right: 16px; bottom: 80px; }
  .toast { font-size: 13px; padding: 10px 16px; }
}