/* ============================================================
   MAUSAM ACHARYA — PORTFOLIO CSS
   Modern Dark Theme | Professional | Responsive
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
  --bg:           #080b14;
  --bg-2:         #0d1120;
  --card:         rgba(255,255,255,0.04);
  --card-hover:   rgba(255,255,255,0.07);
  --border:       rgba(255,255,255,0.08);
  --border-hover: rgba(0,212,255,0.35);
  --text:         #f0f4ff;
  --muted:        #8892a4;
  --accent:       #00d4ff;
  --accent-2:     #7c5cfc;
  --accent-3:     #ff6b6b;
  --gradient:     linear-gradient(135deg, #00d4ff, #7c5cfc);
  --gradient-2:   linear-gradient(135deg, #7c5cfc, #ff6b6b);
  --shadow:       0 20px 60px rgba(0,0,0,0.5);
  --shadow-accent:0 0 40px rgba(0,212,255,0.15);
  --radius:       16px;
  --radius-lg:    24px;
  --transition:   0.3s cubic-bezier(0.4,0,0.2,1);
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Poppins', sans-serif;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent-2); border-radius: 99px; }

/* ===== SELECTION ===== */
::selection { background: rgba(0,212,255,0.25); color: #fff; }


/* ============================================================
   LOADER
   ============================================================ */
.loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-inner {
  display: flex;
  gap: 4px;
}

.loader-inner span {
  font-size: 52px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: loaderPop 0.6s ease both;
}

.loader-inner span:last-child {
  animation-delay: 0.15s;
}

@keyframes loaderPop {
  0%   { transform: scale(0) rotate(-15deg); opacity: 0; }
  70%  { transform: scale(1.15) rotate(3deg); }
  100% { transform: scale(1) rotate(0); opacity: 1; }
}


/* ============================================================
   CUSTOM CURSOR
   ============================================================ */
.cursor-dot,
.cursor-outline {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition-property: opacity;
  transition-duration: 0.3s;
}

.cursor-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  transition: width 0.2s, height 0.2s, background 0.2s;
}

.cursor-outline {
  width: 38px;
  height: 38px;
  border: 2px solid rgba(0,212,255,0.45);
  transition: width 0.3s, height 0.3s, border-color 0.3s, transform 0.08s linear;
}

.cursor-dot.hovered {
  width: 12px;
  height: 12px;
  background: var(--accent-2);
}

.cursor-outline.hovered {
  width: 58px;
  height: 58px;
  border-color: rgba(124,92,252,0.55);
}

@media (hover: none) {
  .cursor-dot, .cursor-outline { display: none; }
}


/* ============================================================
   BACKGROUND AMBIENT GLOWS
   ============================================================ */
body::before {
  content: '';
  position: fixed;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,212,255,0.07), transparent 70%);
  top: -150px;
  left: -150px;
  z-index: -1;
  pointer-events: none;
}

body::after {
  content: '';
  position: fixed;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124,92,252,0.07), transparent 70%);
  bottom: -100px;
  right: -100px;
  z-index: -1;
  pointer-events: none;
}


/* ============================================================
   NAVBAR
   ============================================================ */
#header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 18px 5%;
  transition: var(--transition);
}

#header.scrolled {
  padding: 10px 5%;
  background: rgba(8,11,20,0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.navbar {
  max-width: 1280px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.logo {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
}

.logo span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-link {
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background: rgba(255,255,255,0.06);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
}

/* Hamburger */
.menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 99px;
  transition: var(--transition);
}

.menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* ============================================================
   COMMON SECTION STYLES
   ============================================================ */
section {
  padding: 110px 6%;
}

.container {
  max-width: 1200px;
  margin: auto;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 99px;
  padding: 5px 16px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.section-sub {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 50px;
  max-width: 600px;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Poppins', sans-serif;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0,212,255,0.2);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,212,255,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
}

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

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s cubic-bezier(0.4,0,0.2,1),
              transform 0.8s cubic-bezier(0.4,0,0.2,1);
}

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


/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 6%;
  position: relative;
  overflow: hidden;
}

/* animated background blobs */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  z-index: 0;
  pointer-events: none;
  animation: blobFloat 8s ease-in-out infinite;
}

.blob-1 {
  width: 500px; height: 500px;
  background: rgba(0,212,255,0.06);
  top: -100px; left: -150px;
  animation-delay: 0s;
}

.blob-2 {
  width: 400px; height: 400px;
  background: rgba(124,92,252,0.06);
  top: 50%; right: -100px;
  animation-delay: 3s;
}

.blob-3 {
  width: 300px; height: 300px;
  background: rgba(255,107,107,0.04);
  bottom: 50px; left: 30%;
  animation-delay: 6s;
}

@keyframes blobFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-30px) scale(1.05); }
}

.hero-content {
  max-width: 1200px;
  margin: auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 80px;
  padding-top: 100px;
  position: relative;
  z-index: 1;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 99px;
  margin-bottom: 20px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  display: inline-block;
  position: relative;
}

.pulse-dot::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: rgba(34,197,94,0.4);
  animation: pulse 1.8s ease infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50%       { transform: scale(1.6); opacity: 0; }
}

.intro-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--muted);
  margin-bottom: 10px;
}

.hero-name {
  font-size: clamp(44px, 6vw, 80px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 14px;
}

.hero-role {
  font-size: clamp(18px, 2.5vw, 28px);
  font-weight: 500;
  color: var(--accent);
  min-height: 44px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 2px;
}

#typing {
  display: inline-block;
}

.typed-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.hero-desc {
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 520px;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-socials {
  display: flex;
  gap: 14px;
}

.hero-socials a {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  text-decoration: none;
  font-size: 17px;
  transition: var(--transition);
}

.hero-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,212,255,0.08);
  transform: translateY(-3px);
}


/* ===== PROFILE IMAGE ===== */
.hero-right {
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-wrapper {
  position: relative;
  width: 380px;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Spinning rings */
.profile-ring {
  position: absolute;
  inset: -18px;
  border-radius: 50%;
  border: 2px dashed rgba(0,212,255,0.2);
  animation: spinRing 18s linear infinite;
}

.ring-2 {
  inset: -35px;
  border-color: rgba(124,92,252,0.15);
  animation-duration: 28s;
  animation-direction: reverse;
}

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

/* Image box */
.profile-img-box {
  width: 340px;
  height: 340px;
  border-radius: 36px;
  overflow: hidden;
  position: relative;
  border: 2px solid rgba(255,255,255,0.1);
  box-shadow:
    0 0 0 6px rgba(0,212,255,0.05),
    0 30px 80px rgba(0,0,0,0.6),
    0 0 60px rgba(0,212,255,0.1);
  transition: var(--transition);
  z-index: 2;
}

.profile-img-box:hover {
  box-shadow:
    0 0 0 6px rgba(0,212,255,0.1),
    0 30px 80px rgba(0,0,0,0.7),
    0 0 80px rgba(0,212,255,0.2);
  transform: translateY(-6px);
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform 0.5s ease;
}

.profile-img-box:hover .profile-img {
  transform: scale(1.04);
}

/* Image gradient overlay */
.profile-img-box::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 35%;
  background: linear-gradient(to top, rgba(8,11,20,0.5), transparent);
  pointer-events: none;
}

/* Floating tags */
.float-tag {
  position: absolute;
  background: rgba(13,17,32,0.9);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  padding: 9px 16px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 5;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  animation: tagFloat 4s ease-in-out infinite;
}

.float-tag i { font-size: 16px; }

.tag-1 {
  top: 20px;
  right: -30px;
  animation-delay: 0s;
  color: #3b82f6;
}
.tag-1 i { color: #3b82f6; }

.tag-2 {
  bottom: 60px;
  right: -40px;
  animation-delay: 1.5s;
  color: #eab308;
}
.tag-2 i { color: #eab308; }

.tag-3 {
  bottom: -10px;
  left: -20px;
  animation-delay: 0.8s;
  color: #09CF83;
}
.tag-3 i { color: #09CF83; }

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

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 2px;
  z-index: 1;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50%       { opacity: 0.3; transform: scaleY(0.6); }
}


/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about {
  background: linear-gradient(180deg, transparent, rgba(124,92,252,0.03), transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  font-size: 16px;
  color: var(--muted);
  line-height: 2;
  margin-bottom: 20px;
}

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

.about-stats {
  display: flex;
  gap: 30px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

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

.stat-num {
  font-size: 32px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.stat-label {
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
}

.info-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.info-row {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  color: var(--muted);
}

.info-row i {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: 9px;
  color: var(--accent);
  font-size: 14px;
  flex-shrink: 0;
}

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


/* ============================================================
   SKILLS SECTION
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.skill-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
}

.skill-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,212,255,0.1);
}

.skill-card:hover::before {
  opacity: 0.04;
}

.skill-card > * {
  position: relative;
  z-index: 1;
}

.skill-icon {
  font-size: 32px;
  color: var(--accent);
  margin-bottom: 14px;
}

.skill-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text);
}

.skill-bar {
  height: 5px;
  background: rgba(255,255,255,0.07);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 7px;
}

.skill-fill {
  height: 100%;
  width: 0;
  background: var(--gradient);
  border-radius: 99px;
  transition: width 1.4s cubic-bezier(0.4,0,0.2,1);
}

.skill-card.animated .skill-fill {
  width: var(--w);
}

.skill-percent {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}


/* ============================================================
   PROJECTS SECTION
   ============================================================ */
.projects {
  background: linear-gradient(180deg, transparent, rgba(0,212,255,0.02), transparent);
}

/* Filter Tabs */
.filter-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.filter-btn {
  padding: 9px 22px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Poppins', sans-serif;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,212,255,0.25);
}

/* Project Grid */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 26px;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.project-card:hover {
  border-color: rgba(0,212,255,0.2);
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.4), 0 0 40px rgba(0,212,255,0.07);
  background: var(--card-hover);
}

.project-card:hover::before {
  transform: scaleX(1);
}

.project-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-icon {
  width: 48px;
  height: 48px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent);
}

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

.project-links a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  transition: var(--transition);
}

.project-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,212,255,0.08);
}

.project-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.project-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  flex: 1;
}

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

.project-tags span {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 99px;
  background: rgba(0,212,255,0.07);
  border: 1px solid rgba(0,212,255,0.15);
  color: var(--accent);
  letter-spacing: 0.5px;
}

/* Status badge */
.project-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 99px;
  width: fit-content;
}

.status-progress {
  background: rgba(234,179,8,0.1);
  color: #eab308;
  border: 1px solid rgba(234,179,8,0.2);
}

.status-done {
  background: rgba(34,197,94,0.1);
  color: #22c55e;
  border: 1px solid rgba(34,197,94,0.2);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.8s ease infinite;
}

/* Placeholder card */
.project-placeholder {
  border-style: dashed;
  border-color: rgba(255,255,255,0.1);
  cursor: default;
}

.project-placeholder:hover {
  border-color: rgba(0,212,255,0.3);
  transform: translateY(-4px);
}

.placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 180px;
  gap: 12px;
  text-align: center;
  color: var(--muted);
}

.placeholder-inner i {
  font-size: 36px;
  color: rgba(255,255,255,0.15);
}

.placeholder-inner h3 {
  font-size: 16px;
  color: rgba(255,255,255,0.3);
}

.placeholder-inner p {
  font-size: 13px;
  color: rgba(255,255,255,0.2);
}

/* hidden card (filter) */
.project-card.hidden {
  display: none;
}


/* ============================================================
   INTERESTS SECTION
   ============================================================ */
.interest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
}

.interest-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
  cursor: default;
}

.interest-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px) scale(1.02);
  background: var(--card-hover);
  box-shadow: 0 16px 40px rgba(0,212,255,0.1);
}

.interest-icon {
  width: 54px;
  height: 54px;
  background: rgba(124,92,252,0.1);
  border: 1px solid rgba(124,92,252,0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--accent-2);
  transition: var(--transition);
}

.interest-card:hover .interest-icon {
  background: rgba(0,212,255,0.1);
  border-color: rgba(0,212,255,0.2);
  color: var(--accent);
  transform: rotate(-8deg) scale(1.1);
}

.interest-card span {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  transition: var(--transition);
}

.interest-card:hover span {
  color: var(--text);
}


/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact {
  background: linear-gradient(180deg, transparent, rgba(124,92,252,0.03), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 46px;
  height: 46px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.contact-item p {
  font-size: 14px;
  color: var(--muted);
}

.contact-socials {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.contact-socials a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  text-decoration: none;
  font-size: 17px;
  transition: var(--transition);
}

.contact-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,212,255,0.08);
  transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea {
  padding: 14px 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 14px;
  font-family: 'Poppins', sans-serif;
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(0,212,255,0.4);
  background: rgba(0,212,255,0.03);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.06);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.2);
}

.form-group textarea {
  height: 150px;
  resize: none;
}

.form-success {
  display: none;
  align-items: center;
  gap: 10px;
  color: #22c55e;
  font-size: 14px;
  font-weight: 500;
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: 10px;
  padding: 12px 16px;
}

.form-success.show {
  display: flex;
}


/* ============================================================
   FOOTER
   ============================================================ */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 6%;
  text-align: center;
}

.footer-inner {
  max-width: 1200px;
  margin: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.footer-logo {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.footer-logo span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

footer p {
  font-size: 14px;
  color: var(--muted);
}

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

.footer-copy {
  font-size: 12px !important;
  color: rgba(255,255,255,0.2) !important;
  margin-top: 6px;
}


/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 46px;
  height: 46px;
  background: var(--gradient);
  border: none;
  border-radius: 12px;
  color: #fff;
  font-size: 17px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  box-shadow: 0 8px 24px rgba(0,212,255,0.3);
}

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

.back-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,212,255,0.45);
}


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

/* Tablet */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 60px;
    padding-top: 120px;
  }

  .hero-left {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero-desc {
    max-width: 600px;
  }

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

  .profile-wrapper {
    width: 300px;
    height: 300px;
  }

  .profile-img-box {
    width: 270px;
    height: 270px;
  }

  .tag-1 { right: -10px; }
  .tag-2 { right: -15px; }
  .tag-3 { left: -10px; }
}

/* Mobile nav */
@media (max-width: 900px) {
  .menu-btn { display: flex; }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 280px;
    background: rgba(10,14,24,0.97);
    backdrop-filter: blur(24px);
    flex-direction: column;
    gap: 4px;
    padding: 100px 24px 40px;
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
    z-index: 999;
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 16px;
    padding: 12px 18px;
  }
}

/* Small mobile */
@media (max-width: 600px) {
  section { padding: 90px 5%; }

  .hero-name { font-size: clamp(36px,10vw,52px); letter-spacing: -1px; }
  .hero-role { font-size: 18px; }

  .profile-wrapper { width: 250px; height: 250px; }
  .profile-img-box { width: 220px; height: 220px; border-radius: 28px; }
  .float-tag { font-size: 11px; padding: 7px 12px; }
  .tag-1 { right: -8px; top: 10px; }
  .tag-2 { right: -8px; bottom: 40px; }
  .tag-3 { left: -8px; }

  .form-row { grid-template-columns: 1fr; }

  .hero-cta { flex-direction: column; width: 100%; }
  .btn { justify-content: center; }

  .about-stats { gap: 20px; }
  .stat-num { font-size: 26px; }

  .filter-tabs { gap: 8px; }
  .filter-btn { padding: 7px 16px; font-size: 12px; }

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

  .contact-form { padding: 24px; }
  .back-top { bottom: 20px; right: 20px; }
}