/* ================================================
   PORTFOLIO STYLESHEET
   Author: Your Name
   ================================================
   TABLE OF CONTENTS:
   1. CSS Variables & Reset
   2. Utility Classes
   3. Navbar
   4. Hero Section
   5. About Section
   6. Skills Section
   7. Projects Section
   8. Experience / Education
   9. Contact Section
   10. Footer
   11. Animations & Scroll Reveal
   12. Responsive Design
   ================================================ */


/* ================================================
   1. CSS VARIABLES & RESET
   ✏️ You can adjust colors here globally
   ================================================ */
:root {
  /* Primary palette */
  --clr-bg:        #050816;
  --clr-bg-2:      #0d1117;
  --clr-surface:   #111c32;
  --clr-surface-2: #1e293b;
  --clr-border:    rgba(255,255,255,0.07);

  /* Accent */
  --clr-accent:    #38bdf8;   /* ✏️ REPLACE with your preferred accent color */
  --clr-accent-2:  #818cf8;
  --clr-accent-glow: rgba(56, 189, 248, 0.12);

  /* Text */
  --clr-text:      #e2e8f0;
  --clr-text-muted:#94a3b8;
  --clr-heading:   #f8fafc;

  /* Fonts */
  --font-display:  'Syne', sans-serif;
  --font-body:     'DM Sans', sans-serif;

  /* Sizes */
  --nav-h:         70px;
  --radius:        12px;
  --radius-lg:     20px;
  --transition:    0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow:        0 4px 30px rgba(0,0,0,0.4);
  --shadow-glow:   0 0 20px rgba(56, 189, 248, 0.08);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

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

ul { list-style: none; }

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

/* ================================================
   2. UTILITY CLASSES
   ================================================ */
.container {
  width: 90%;
  max-width: 1200px;
  margin-inline: auto;
}

.section {
  padding: 100px 0;
}

.highlight {
  color: var(--clr-accent);
  position: relative;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 18px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--clr-heading);
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-title.center { text-align: center; }

.section-sub {
  color: var(--clr-text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  text-align: center;
  margin-inline: auto;
  margin-bottom: 56px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--clr-accent);
  color: #050816;
  font-weight: 700;
  box-shadow: 0 0 16px rgba(56,189,248,0.2);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(56,189,248,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--clr-accent);
  border: 1.5px solid var(--clr-accent);
}
.btn-outline:hover {
  background: rgba(56,189,248,0.08);
  transform: translateY(-2px);
}

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


/* ================================================
   3. NAVBAR
   ================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  transition: background 0.4s ease, box-shadow 0.4s ease;
  overflow: visible;
}

.navbar.scrolled {
  background: rgba(5, 8, 22, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--clr-border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: 90%;
  max-width: 1200px;
  margin-inline: auto;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--clr-heading);
  white-space: nowrap;
  flex-shrink: 0;
}
.logo-dot { color: var(--clr-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-accent);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-accent);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  background: var(--clr-accent);
  color: #050816;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 9px 22px;
  border-radius: 8px;
  transition: var(--transition);
  box-shadow: 0 0 12px rgba(56,189,248,0.18);
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 18px rgba(56,189,248,0.3);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* ================================================
   4. HERO SECTION
   ================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--nav-h);
  overflow: hidden;
}

/* Dot grid background */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(56,189,248,0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(129,140,248,0.06) 0%, transparent 40%),
    radial-gradient(circle 1px at 1px 1px, rgba(255,255,255,0.06) 1px, transparent 0);
  background-size: auto, auto, 40px 40px;
  pointer-events: none;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  width: 90%;
  max-width: 1200px;
  margin-inline: auto;
  padding: 80px 0;
}

.hero-text {
  flex: 1;
  max-width: 600px;
}

.hero-greeting {
  font-size: 1.1rem;
  color: var(--clr-text-muted);
  margin-bottom: 12px;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 800;
  color: var(--clr-heading);
  line-height: 1.05;
  margin-bottom: 20px;
}

.hero-role {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--clr-text-muted);
  margin-bottom: 24px;
  font-weight: 300;
}

.role-prefix { color: var(--clr-text); }

.typed {
  color: var(--clr-accent);
  font-weight: 600;
}

.cursor {
  color: var(--clr-accent);
  animation: blink 0.8s infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

.hero-bio {
  color: var(--clr-text-muted);
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-socials {
  display: flex;
  gap: 16px;
}

.hero-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  transition: var(--transition);
}
.hero-socials a:hover {
  color: var(--clr-accent);
  border-color: var(--clr-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}
.hero-socials a svg { width: 18px; height: 18px; }

/* Hero Image */
.hero-image-wrap {
  flex-shrink: 0;
  position: relative;
  width: 360px;
  height: 360px;
}

.hero-image-ring {
  position: absolute;
  inset: -16px;
  border-radius: 50%;
  border: 2px dashed rgba(56,189,248,0.25);
  animation: spin 20s linear infinite;
}

.ring-2 {
  inset: -36px;
  border-color: rgba(129,140,248,0.15);
  animation-duration: 30s;
  animation-direction: reverse;
}

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

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--clr-surface-2);
  box-shadow: var(--shadow), var(--shadow-glow);
  position: relative;
  z-index: 1;
}

.floating-badge {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  padding: 10px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-text);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  white-space: nowrap;
}

.floating-badge svg { width: 15px; height: 15px; color: var(--clr-accent); }

.badge-1 {
  bottom: 30px;
  left: -40px;
  animation: float 3s ease-in-out infinite;
}
.badge-2 {
  top: 30px;
  right: -40px;
  animation: float 3s ease-in-out infinite 1.5s;
}

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

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--clr-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fadeInUp 1s ease 1s both;
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--clr-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
  50%       { opacity: 1; transform: scaleY(1); }
}


/* ================================================
   5. ABOUT SECTION
   ================================================ */
.about {
  background: var(--clr-bg-2);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  align-items: center;
}

.about-img-wrap {
  position: relative;
}

.about-photo {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-lg);
  filter: grayscale(15%);
  transition: filter var(--transition);
  box-shadow: var(--shadow);
}
.about-photo:hover { filter: grayscale(0%); }

.about-exp-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--clr-accent);
  color: #050816;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  text-align: center;
  box-shadow: 0 0 20px rgba(56,189,248,0.22);
}

.exp-num {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}
.exp-label {
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
}

.about-para {
  color: var(--clr-text-muted);
  margin-bottom: 20px;
  font-size: 1.02rem;
}

.about-stats {
  display: flex;
  gap: 32px;
  margin: 36px 0;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

.about-actions { margin-top: 8px; }


/* ================================================
   6. SKILLS SECTION
   ================================================ */
.skills { background: var(--clr-bg); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

.skill-category {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.skill-category:hover {
  transform: translateY(-6px);
  border-color: rgba(56,189,248,0.3);
  box-shadow: var(--shadow-glow);
}

.skill-cat-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-heading);
  margin-bottom: 20px;
}
.skill-cat-title svg { width: 18px; height: 18px; color: var(--clr-accent); }

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

.skill-tag {
  font-size: 0.8rem;
  padding: 6px 14px;
  background: rgba(56,189,248,0.07);
  border: 1px solid rgba(56,189,248,0.18);
  color: var(--clr-text);
  border-radius: 100px;
  font-weight: 500;
  transition: var(--transition);
}
.skill-tag:hover {
  background: rgba(56,189,248,0.18);
  color: var(--clr-accent);
  transform: scale(1.05);
}

/* Proficiency Bars */
.proficiency-section {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.prof-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--clr-heading);
  margin-bottom: 28px;
}

.prof-bars { display: flex; flex-direction: column; gap: 22px; }

.prof-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--clr-text);
  margin-bottom: 8px;
  font-weight: 500;
}

.prof-pct { color: var(--clr-accent); font-weight: 600; }

.prof-bar-track {
  height: 6px;
  background: var(--clr-surface-2);
  border-radius: 100px;
  overflow: hidden;
}

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


/* ================================================
   7. PROJECTS SECTION
   ================================================ */
.projects { background: var(--clr-bg-2); }

/* Filter buttons */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 9px 22px;
  border-radius: 100px;
  border: 1.5px solid var(--clr-border);
  background: transparent;
  color: var(--clr-text-muted);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  color: var(--clr-text);
  border-color: rgba(255,255,255,0.2);
}

.filter-btn.active {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #050816;
  font-weight: 700;
}

/* Project Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
  margin-bottom: 48px;
}

.project-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: rgba(56,189,248,0.3);
  box-shadow: var(--shadow-glow), var(--shadow);
}

.project-card.hidden {
  display: none;
}

.project-img-wrap {
  position: relative;
  overflow: hidden;
}

.project-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.project-card:hover .project-img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5, 8, 22, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  backdrop-filter: blur(4px);
}

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

.project-links {
  display: flex;
  gap: 14px;
}

.proj-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  color: var(--clr-text);
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
}

.proj-link:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #050816;
}
.proj-link svg { width: 15px; height: 15px; }

.project-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--clr-accent);
  color: #050816;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.project-body {
  padding: 24px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.project-tags span {
  font-size: 0.75rem;
  padding: 4px 12px;
  background: rgba(56,189,248,0.07);
  border: 1px solid rgba(56,189,248,0.18);
  color: var(--clr-accent);
  border-radius: 100px;
  font-weight: 500;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--clr-heading);
  margin-bottom: 10px;
}

.project-desc {
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 6;
  overflow: hidden;
}

.projects-cta {
  text-align: center;
}


/* ================================================
   8. EXPERIENCE / EDUCATION
   ================================================ */
.experience { background: var(--clr-bg); }

.timeline-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 16px;
}

.timeline-col-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-heading);
  margin-bottom: 36px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--clr-border);
}
.timeline-col-title svg { width: 20px; height: 20px; color: var(--clr-accent); }

.timeline-item {
  display: flex;
  gap: 20px;
  margin-bottom: 36px;
  position: relative;
}

.timeline-dot {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  background: var(--clr-accent);
  border-radius: 50%;
  margin-top: 6px;
  box-shadow: 0 0 10px rgba(56,189,248,0.5);
  position: relative;
}

.timeline-dot::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 14px;
  transform: translateX(-50%);
  width: 1px;
  height: calc(100% + 22px);
  background: linear-gradient(to bottom, rgba(56,189,248,0.3), transparent);
}

.timeline-item:last-child .timeline-dot::before { display: none; }

.cert-dot { background: var(--clr-accent-2); }

.timeline-date {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--clr-accent);
  background: rgba(56,189,248,0.08);
  border: 1px solid rgba(56,189,248,0.2);
  padding: 3px 12px;
  border-radius: 100px;
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}

.timeline-role {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-heading);
  margin-bottom: 4px;
}

.timeline-org {
  font-size: 0.85rem;
  color: var(--clr-accent);
  margin-bottom: 10px;
  font-weight: 500;
}

.timeline-desc {
  color: var(--clr-text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 12px;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.timeline-tags span {
  font-size: 0.72rem;
  padding: 3px 10px;
  background: var(--clr-surface-2);
  color: var(--clr-text-muted);
  border-radius: 100px;
  border: 1px solid var(--clr-border);
}

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cert-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--clr-text-muted);
  font-size: 0.88rem;
}
.cert-list li svg { width: 15px; height: 15px; color: var(--clr-accent-2); flex-shrink: 0; }


/* ================================================
   9. CONTACT SECTION
   ================================================ */
.contact { background: var(--clr-bg-2); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.contact-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(56,189,248,0.1);
  border: 1px solid rgba(56,189,248,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  flex-shrink: 0;
}
.contact-icon svg { width: 18px; height: 18px; }

.ci-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-text-muted);
  margin-bottom: 4px;
  font-weight: 600;
}

.ci-value {
  color: var(--clr-text);
  font-size: 0.95rem;
  font-weight: 500;
  overflow-wrap: anywhere;
  transition: color var(--transition);
}
.ci-value:hover { color: var(--clr-accent); }

.contact-socials {
  display: flex;
  gap: 12px;
  padding-top: 4px;
  border-top: 1px solid var(--clr-border);
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  transition: var(--transition);
}
.social-icon:hover {
  color: var(--clr-accent);
  border-color: var(--clr-accent);
  background: rgba(56,189,248,0.08);
  transform: translateY(-3px);
}
.social-icon svg { width: 17px; height: 17px; }

/* Contact Form */
.contact-form-wrap {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.form-group input,
.form-group textarea {
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(56,189,248,0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--clr-text-muted);
  opacity: 0.6;
}

.form-status {
  margin-top: 12px;
  font-size: 0.88rem;
  text-align: center;
  min-height: 20px;
  font-weight: 500;
}

.form-status.success { color: #34d399; }
.form-status.error   { color: #f87171; }


/* ================================================
   10. FOOTER
   ================================================ */
.footer {
  background: var(--clr-bg);
  border-top: 1px solid var(--clr-border);
  padding: 36px 0;
  position: relative;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  width: 90%;
  max-width: 1200px;
  margin-inline: auto;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--clr-heading);
}

.footer-text {
  color: var(--clr-text-muted);
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  gap: 14px;
}
.footer-links a {
  color: var(--clr-text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--clr-accent); }
.footer-links a svg { width: 18px; height: 18px; }

.back-top {
  position: absolute;
  bottom: 36px;
  right: 5%;
  width: 42px;
  height: 42px;
  background: var(--clr-accent);
  color: #050816;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  box-shadow: 0 0 15px rgba(56,189,248,0.3);
}
.back-top.visible {
  opacity: 1;
  pointer-events: all;
}
.back-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 25px rgba(56,189,248,0.5);
}
.back-top svg { width: 18px; height: 18px; }


/* ================================================
   11. SCROLL REVEAL ANIMATIONS
   ================================================ */
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-up    { transform: translateY(40px); }
.reveal-left  { transform: translateX(-50px); }
.reveal-right { transform: translateX(50px); }

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* Animation delays */
.delay-1 { transition-delay: 0.12s; }
.delay-2 { transition-delay: 0.24s; }
.delay-3 { transition-delay: 0.36s; }
.delay-4 { transition-delay: 0.48s; }
.delay-5 { transition-delay: 0.60s; }

/* Hero entrance animation */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* ================================================
   12. RESPONSIVE DESIGN
   ================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-image-col { text-align: center; }
  .about-img-wrap { display: inline-block; }
  .timeline-wrap { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-image-wrap { width: 300px; height: 300px; }
  .badge-1 { left: -20px; }
  .badge-2 { right: -20px; }
}

/* Mobile */
@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .section { padding: 72px 0; }

  /* Navbar mobile */
  .navbar {
    width: 100%;
  }

  .nav-inner {
    width: 90%;
    max-width: 1200px;
    margin-inline: auto;
  }

  .nav-logo {
    font-size: 1.3rem;
  }

  /* Dropdown menu (hidden by default) */
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    background: rgba(5, 8, 22, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 0;
    padding: 20px 0;
    border-bottom: 1px solid var(--clr-border);

    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-16px);
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
    z-index: 999;
  }

  /* Dropdown menu (open) */
  .nav-links.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  /* Keep logo and hamburger above the menu */
  .nav-logo,
  .hamburger {
    position: relative;
    z-index: 1001;
  }

    /* Hero mobile */
  .hero-content {
    flex-direction: column-reverse;
    text-align: center;
    padding: 48px 0 32px;
    gap: 24px;
  }
  .hero-actions { justify-content: center; }
  .hero-socials { justify-content: center; }
  .hero-bio { margin-inline: auto; }
  .hero-image-wrap { width: 230px; height: 230px; }
  .badge-1, .badge-2 { display: none; }
  .scroll-indicator { display: none; }

  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: 14px 24px;
    font-size: 1rem;
  }
  .nav-links a::after { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }

  /* About */
  .about-stats { gap: 20px; }

  /* Skills */
  .form-row { grid-template-columns: 1fr; }
  .proficiency-section { padding: 24px; }
  .contact-grid > * { min-width: 0; }
  .contact-info,
  .contact-form-wrap { min-width: 0; }
  .contact-card { padding: 24px; }

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

  /* Footer */
  .footer-inner { flex-direction: column; text-align: center; }
  .back-top { position: static; margin-top: 16px; }
}

@media (max-width: 480px) {
  .hero-name { font-size: 2.6rem; }
  .hero-image-wrap { width: 210px; height: 210px; }
  .about-exp-badge { width: 90px; height: 90px; bottom: -10px; right: 10px; }
  .exp-num { font-size: 1.6rem; }
  .contact-form-wrap { padding: 24px; }
}

@media (hover: none) {
  .project-overlay {
    opacity: 1;
    align-items: flex-end;
    padding-bottom: 16px;
    background: linear-gradient(to top, rgba(5, 8, 22, 0.9), transparent 65%);
    backdrop-filter: none;
  }
}

/* Spin animation for loading button */
.spin-icon {
  animation: spin-loader 1s linear infinite;
}

@keyframes spin-loader {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}