/* ============================================================
   NITTA SAMITH — PORTFOLIO STYLESHEET
   Preserves original dark theme · teal/sky-blue palette
   Poppins · glassmorphism · enhanced for FAANG recruiters
   ============================================================ */

/* ===========================
   1. DESIGN SYSTEM TOKENS
   =========================== */
:root {
  /* Preserved palette */
  --clr-primary:       #38BDF8;
  --clr-secondary:     #2DD4BF;
  --clr-text:          #F5F7FA;
  --clr-text-muted:    #C9D6DF;
  --clr-text-dim:      #8899A6;

  /* Surfaces */
  --clr-surface:       rgba(255, 255, 255, 0.06);
  --clr-surface-hover: rgba(255, 255, 255, 0.11);
  --clr-border:        rgba(255, 255, 255, 0.09);
  --clr-border-accent: rgba(56, 189, 248, 0.30);
  --clr-glow:          rgba(56, 189, 248, 0.18);
  --clr-glow-teal:     rgba(45, 212, 191, 0.18);

  /* Spacing scale */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;
  --sp-24: 96px;
  --sp-32: 128px;

  /* Radius */
  --r-sm:   6px;
  --r-md:   12px;
  --r-lg:   18px;
  --r-xl:   24px;
  --r-full: 9999px;

  /* Typography */
  --font-base: 'Poppins', sans-serif;

  /* Transitions */
  --t-fast: 0.18s ease;
  --t-base: 0.30s ease;
  --t-slow: 0.50s ease;

  /* Shadows */
  --shadow-card:  0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow:  0 0 24px rgba(56, 189, 248, 0.20);
  --shadow-teal:  0 0 24px rgba(45, 212, 191, 0.20);
}

/* ===========================
   1b. SUNLIGHT LIGHT THEME
   =========================== */
html.light-theme {
  --clr-primary:       #0284C7;
  --clr-secondary:     #0D9488;
  --clr-text:          #0B1120;
  --clr-text-muted:    #1E3048;
  --clr-text-dim:      #4A6080;

  /* Warm frosted glass surfaces over bright ocean photo */
  --clr-surface:       rgba(255, 251, 240, 0.65);
  --clr-surface-hover: rgba(255, 255, 255, 0.85);
  --clr-border:        rgba(11, 17, 32, 0.10);
  --clr-border-accent: rgba(2, 132, 199, 0.30);
  --clr-glow:          rgba(2, 132, 199, 0.10);
  --clr-glow-teal:     rgba(13, 148, 136, 0.10);

  --shadow-card:  0 8px 40px rgba(11, 17, 32, 0.12);
  --shadow-glow:  0 0 24px rgba(2, 132, 199, 0.18);
  --shadow-teal:  0 0 24px rgba(13, 148, 136, 0.18);
}

/* ---- LIGHT MODE: Sunrise Ocean Background ---- */
html.light-theme body {
  /* Primary: golden sunrise beach horizon (wide, bright, clear horizon) */
  background-image: url("ChatGPT Image Jul 7, 2026, 03_16_09 PM.png");
  background-size: cover;
  background-attachment: fixed;
  background-position: center 30%;
  background-color: #B8DFF5;
}

/* Warm luminous overlay so text stays readable over the bright photo */
html.light-theme body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    rgba(255, 251, 235, 0.45) 0%,
    rgba(255, 248, 220, 0.30) 40%,
    rgba(186, 224, 245, 0.25) 100%
  );
}

html.light-theme .mainnav {
  background: rgba(255, 252, 240, 0.72);
  border-bottom: 1px solid rgba(11, 17, 32, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

html.light-theme .mobile-nav {
  background: rgba(255, 252, 240, 0.97);
}

/* Hero: override in light mode */
html.light-theme .hero::before {
  background-image: 
    radial-gradient(circle at 20% 35%, rgba(14, 165, 233, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 80% 55%, rgba(20, 184, 166, 0.06) 0%, transparent 45%);
  opacity: 0.9;
}

html.light-theme .hero::after {
  background-image: 
    linear-gradient(rgba(15, 23, 42, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.02) 1px, transparent 1px);
}

html.light-theme .btn {
  color: #fff;
}

html.light-theme .btn:hover {
  background: #0369a1;
  border-color: #0369a1;
}

/* Sections need stronger frosted card background in light mode */
html.light-theme .section,
html.light-theme .section-full {
  position: relative;
  z-index: 1;
}

html.light-theme .card,
html.light-theme .skill-category,
html.light-theme .project-card,
html.light-theme .info-card,
html.light-theme .contact-method,
html.light-theme .timeline-item {
  background: rgba(255, 252, 240, 0.78);
  border-color: rgba(11, 17, 32, 0.09);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

html.light-theme .timeline-item::before {
  border-color: rgba(255, 252, 240, 0.78);
}

html.light-theme footer {
  background: rgba(255, 252, 240, 0.80);
  border-top: 1px solid rgba(11, 17, 32, 0.06);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

/* Skill pills in light mode */
html.light-theme .pill {
  background: rgba(2, 132, 199, 0.10);
  color: #0B1120;
  border-color: rgba(2, 132, 199, 0.18);
}
html.light-theme .pill:hover {
  background: rgba(2, 132, 199, 0.18);
}
html.light-theme .pill.teal {
  background: rgba(13, 148, 136, 0.10);
  border-color: rgba(13, 148, 136, 0.18);
}
html.light-theme .pill.teal:hover {
  background: rgba(13, 148, 136, 0.18);
}


/* Theme Toggle Button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--r-full);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  font-size: 15px;
  cursor: pointer;
  background: transparent;
  transition: all var(--t-base);
  margin-left: var(--sp-2);
}

.theme-toggle:hover {
  color: var(--clr-primary);
  border-color: var(--clr-border-accent);
  background: var(--clr-glow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.mobile-theme-toggle {
  margin-top: var(--sp-4);
  font-size: 20px;
  color: var(--clr-text-muted);
  background: transparent;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-full);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--t-base);
}

.mobile-theme-toggle:hover {
  color: var(--clr-primary);
  border-color: var(--clr-border-accent);
  background: var(--clr-glow);
}


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

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

body {
  font-family: var(--font-base);
  color: var(--clr-text);
  /* DARK MODE — Night ocean: dark sky + stormy teal waves */
  background-image: url("wp2930909.webp");
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  /* Smooth crossfade when toggling themes */
  transition: background-image 0.5s ease, background-color 0.5s ease, color 0.4s ease;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

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

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

ul {
  list-style: none;
}

/* ===========================
   3. ACCESSIBILITY
   =========================== */

/* Skip to main content */
.skip-link {
  position: absolute;
  top: -60px;
  left: var(--sp-4);
  background: var(--clr-primary);
  color: #000;
  padding: var(--sp-3) var(--sp-6);
  border-radius: var(--r-sm);
  font-weight: 600;
  font-size: var(--sp-4);
  z-index: 9999;
  transition: top var(--t-base);
}

.skip-link:focus {
  top: var(--sp-4);
}

/* Focus visible ring */
*:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ===========================
   4. NAVIGATION
   =========================== */
.mainnav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 80px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(0, 0, 0, 0.45);
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--clr-secondary);
  letter-spacing: -0.5px;
  cursor: pointer;
}

.logo span {
  color: var(--clr-primary);
}

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

.navdomains a {
  text-decoration: none;
  color: var(--clr-text-muted);
  font-weight: 500;
  font-size: 15px;
  position: relative;
  padding-bottom: 3px;
  transition: color var(--t-base);
}

.navdomains a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-primary);
  border-radius: var(--r-full);
  transition: width var(--t-base);
}

.navdomains a:hover,
.navdomains a.active {
  color: var(--clr-primary);
}

.navdomains a:hover::after,
.navdomains a.active::after {
  width: 100%;
}

.social-icons {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--r-full);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  font-size: 17px;
  transition: all var(--t-base);
}

.social-icons a:hover {
  color: var(--clr-primary);
  border-color: var(--clr-border-accent);
  background: var(--clr-glow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* Hamburger menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--sp-2);
  border: none;
  background: transparent;
  z-index: 1100;
  border-radius: var(--r-sm);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text-muted);
  border-radius: var(--r-full);
  transition: all var(--t-base);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--clr-primary);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--clr-primary);
}

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 22, 0.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-8);
}

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

.mobile-nav a {
  font-size: 28px;
  font-weight: 700;
  color: var(--clr-text-muted);
  transition: color var(--t-base);
}

.mobile-nav a:hover {
  color: var(--clr-primary);
}

/* ===========================
   5. HERO SECTION
   =========================== */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--sp-32) 120px var(--sp-20);
  position: relative;
  overflow: hidden;
}

/* Hero glowing mesh panel */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 35%, rgba(56, 189, 248, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 80% 55%, rgba(45, 212, 191, 0.12) 0%, transparent 45%);
  filter: blur(40px);
  opacity: 0.85;
  pointer-events: none;
  transition: opacity 0.5s ease;
  z-index: 0;
}

/* Tech grid overlay in hero */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 44px 44px;
  background-position: center;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, #000 60%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, #000 60%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}


.hero-badge,
.hero h1,
.hero-role,
.hero p,
.hero-buttons,
.hero-stats,
.scroll-indicator {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-accent);
  border-radius: var(--r-full);
  padding: var(--sp-2) var(--sp-5);
  font-size: 13px;
  color: var(--clr-primary);
  font-weight: 500;
  margin-bottom: var(--sp-6);
  width: fit-content;
}

.hero-badge .dot {
  width: 7px;
  height: 7px;
  background: #22C55E;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

.hero h1 {
  font-size: 72px;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -2px;
  margin-bottom: var(--sp-4);
}

.hero h1 .name-highlight {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  font-size: 26px;
  font-weight: 600;
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-6);
  min-height: 40px;
}

.hero-role .typed-text {
  color: var(--clr-primary);
}

.hero-role .cursor {
  display: inline-block;
  width: 3px;
  height: 1.1em;
  background: var(--clr-primary);
  margin-left: 3px;
  vertical-align: text-bottom;
  border-radius: 2px;
  animation: blink-cursor 0.75s step-end infinite;
}

.hero p {
  font-size: 18px;
  color: var(--clr-text-muted);
  line-height: 1.75;
  max-width: 580px;
  margin-bottom: var(--sp-10);
}

.hero-buttons {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-10);
}

.hero-stats {
  display: flex;
  gap: var(--sp-10);
  flex-wrap: wrap;
}

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

.stat-number {
  font-size: 30px;
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--clr-text-dim);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--sp-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  color: var(--clr-text-dim);
  font-size: 12px;
  animation: bounce-scroll 2.5s ease-in-out infinite;
}

.scroll-indicator i {
  font-size: 18px;
}

/* ===========================
   6. BUTTONS
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 13px 28px;
  background: var(--clr-primary);
  color: #000;
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-base);
  border-radius: var(--r-sm);
  border: 2px solid var(--clr-primary);
  cursor: pointer;
  transition: all var(--t-base);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
  background: #60CBFD;
  border-color: #60CBFD;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 13px 28px;
  background: transparent;
  color: var(--clr-primary);
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-base);
  border: 2px solid var(--clr-primary);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: all var(--t-base);
  white-space: nowrap;
}

.btn-outline:hover {
  background: var(--clr-primary);
  color: #000;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.btn-small {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 8px 18px;
  background: transparent;
  color: var(--clr-primary);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-base);
  border: 1.5px solid var(--clr-border-accent);
  border-radius: var(--r-sm);
  transition: all var(--t-base);
  cursor: pointer;
}

.btn-small:hover {
  background: var(--clr-primary);
  color: #000;
  border-color: var(--clr-primary);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 8px 18px;
  background: var(--clr-surface);
  color: var(--clr-text-muted);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-base);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-sm);
  transition: all var(--t-base);
  cursor: pointer;
}

.btn-ghost:hover {
  background: var(--clr-surface-hover);
  color: var(--clr-text);
  border-color: var(--clr-border-accent);
}

/* ===========================
   7. SECTION LAYOUT
   =========================== */
.section {
  padding: var(--sp-24) 120px;
  max-width: 1280px;
  position: relative;
  z-index: 1;
}

.section-full {
  padding: var(--sp-24) 120px;
  width: 100%;
  position: relative;
  z-index: 1;
}

.section-header {
  margin-bottom: var(--sp-12);
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--clr-secondary);
  margin-bottom: var(--sp-3);
}

.section h2 {
  font-size: 40px;
  font-weight: 800;
  color: var(--clr-text);
  letter-spacing: -1px;
  line-height: 1.15;
}

.section h2 span {
  color: var(--clr-primary);
}

.section-subtitle {
  font-size: 17px;
  color: var(--clr-text-muted);
  margin-top: var(--sp-4);
  max-width: 560px;
  line-height: 1.75;
}

/* ===========================
   8. CARDS
   =========================== */
.card {
  background: var(--clr-surface);
  padding: var(--sp-8);
  border-radius: var(--r-lg);
  border: 1px solid var(--clr-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--t-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  border: 1px solid transparent;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.12), transparent) 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;
  opacity: 0;
  transition: opacity var(--t-base);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-8px);
  background: var(--clr-surface-hover);
  border-color: var(--clr-border-accent);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

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

.card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: var(--sp-3);
  color: var(--clr-text);
}

.card p {
  color: var(--clr-text-muted);
  line-height: 1.7;
  font-size: 15px;
}

.card i {
  font-size: 36px;
  margin-bottom: var(--sp-5);
  color: var(--clr-primary);
}

/* ===========================
   9. GRID SYSTEM
   =========================== */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-8);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-8);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-6);
}

/* ===========================
   10. SKILLS SECTION
   =========================== */
.skills-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.skill-category {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8);
  backdrop-filter: blur(10px);
  transition: all var(--t-base);
}

.skill-category:hover {
  border-color: var(--clr-border-accent);
  background: var(--clr-surface-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}

.skill-cat-header i {
  font-size: 22px;
  color: var(--clr-primary);
  width: 36px;
}

.skill-cat-header h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--clr-text);
  margin: 0;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px;
  background: rgba(56, 189, 248, 0.07);
  border: 1px solid rgba(56, 189, 248, 0.18);
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 500;
  color: var(--clr-text-muted);
  transition: all var(--t-fast);
  cursor: default;
}

.pill:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  transform: translateY(-1px);
}

.pill.teal {
  background: rgba(45, 212, 191, 0.07);
  border-color: rgba(45, 212, 191, 0.20);
}

.pill.teal:hover {
  background: rgba(45, 212, 191, 0.15);
  border-color: var(--clr-secondary);
  color: var(--clr-secondary);
}

/* ===========================
   11. PROJECT CARDS
   =========================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.project-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8);
  backdrop-filter: blur(10px);
  transition: all var(--t-base);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  position: relative;
  overflow: hidden;
}

.project-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base);
}

.project-card:hover {
  transform: translateY(-10px);
  background: var(--clr-surface-hover);
  border-color: var(--clr-border-accent);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

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

.project-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--r-full);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  width: fit-content;
}

.badge-ai    { background: rgba(56, 189, 248, 0.12); color: var(--clr-primary); border: 1px solid rgba(56, 189, 248, 0.25); }
.badge-ml    { background: rgba(45, 212, 191, 0.12); color: var(--clr-secondary); border: 1px solid rgba(45, 212, 191, 0.25); }
.badge-data  { background: rgba(167, 139, 250, 0.12); color: #A78BFA; border: 1px solid rgba(167, 139, 250, 0.25); }
.badge-be    { background: rgba(251, 146, 60, 0.12); color: #FB923C; border: 1px solid rgba(251, 146, 60, 0.25); }
.badge-fs    { background: rgba(34, 197, 94, 0.12); color: #22C55E; border: 1px solid rgba(34, 197, 94, 0.25); }

.project-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.3;
}

.project-impact {
  font-size: 13px;
  font-weight: 600;
  color: var(--clr-secondary);
  font-style: italic;
}

.project-desc {
  font-size: 14px;
  color: var(--clr-text-muted);
  line-height: 1.7;
  flex: 1;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.stack-pill {
  padding: 3px 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-full);
  font-size: 11px;
  color: var(--clr-text-dim);
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: var(--sp-3);
  margin-top: var(--sp-2);
}

/* Filter tabs */
.filter-tabs {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
  margin-bottom: var(--sp-10);
}

.filter-tab {
  padding: 8px 20px;
  border-radius: var(--r-full);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-base);
  cursor: pointer;
  transition: all var(--t-base);
}

.filter-tab:hover {
  border-color: var(--clr-border-accent);
  color: var(--clr-primary);
}

.filter-tab.active {
  background: var(--clr-primary);
  border-color: var(--clr-primary);
  color: #000;
  font-weight: 600;
}

/* ===========================
   12. ABOUT SECTION
   =========================== */
.about-layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--sp-12);
  align-items: start;
}

.about-text p {
  font-size: 16px;
  color: var(--clr-text-muted);
  line-height: 1.85;
  margin-bottom: var(--sp-5);
}

.about-text p:last-child {
  margin-bottom: 0;
}

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

.about-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.info-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  backdrop-filter: blur(10px);
}

.info-card-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--clr-text-dim);
  margin-bottom: var(--sp-2);
}

.info-card-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--clr-text);
}

.info-card-sub {
  font-size: 13px;
  color: var(--clr-text-muted);
  margin-top: 4px;
}

/* Avatar */
.avatar-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-5);
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
  font-weight: 800;
  color: #000;
  border: 3px solid rgba(56, 189, 248, 0.30);
  box-shadow: var(--shadow-glow);
  flex-shrink: 0;
}

/* Stats row */
.stats-row {
  display: flex;
  gap: var(--sp-8);
  flex-wrap: wrap;
  margin-top: var(--sp-10);
  padding-top: var(--sp-10);
  border-top: 1px solid var(--clr-border);
}

.stat-block {
  text-align: center;
  flex: 1;
  min-width: 100px;
}

.stat-block .number {
  font-size: 36px;
  font-weight: 800;
  color: var(--clr-primary);
  display: block;
  line-height: 1;
}

.stat-block .label {
  font-size: 12px;
  color: var(--clr-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 6px;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-primary), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--sp-8);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--t-base);
}

.timeline-item:hover {
  border-color: var(--clr-border-accent);
  background: var(--clr-surface-hover);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 24px; /* Centered vertically with the first line of card text (year) */
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--clr-primary);
  border: 2px solid #0a0f1a;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.25);
  z-index: 2;
}

.timeline-year {
  font-size: 12px;
  font-weight: 600;
  color: var(--clr-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--clr-text);
}

.timeline-sub {
  font-size: 14px;
  color: var(--clr-text-muted);
  margin-top: 4px;
}

/* ===========================
   13. CONTACT SECTION
   =========================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: start;
}

.sidebar-links-box {
  padding: 24px;
  background: rgba(56, 189, 248, 0.04);
  border: 1px solid var(--clr-border-accent);
  border-radius: var(--r-md);
  backdrop-filter: blur(10px);
}

.sidebar-links-box p {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--clr-text-dim);
  margin-bottom: 14px;
}

.sidebar-link {
  font-size: 14px;
  color: var(--clr-text-muted) !important;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color var(--t-base);
  text-decoration: none;
}

.sidebar-link:hover {
  color: var(--clr-primary) !important;
}

.sidebar-link i {
  color: var(--clr-primary);
  width: 16px;
  transition: transform var(--t-base);
}

.sidebar-link:hover i {
  transform: translateX(2px);
}

.contact-intro h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--clr-text);
  margin-bottom: var(--sp-4);
}

.contact-intro p {
  font-size: 16px;
  color: var(--clr-text-muted);
  line-height: 1.75;
  margin-bottom: var(--sp-8);
}

.availability-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: rgba(34, 197, 94, 0.10);
  border: 1px solid rgba(34, 197, 94, 0.30);
  border-radius: var(--r-full);
  padding: var(--sp-2) var(--sp-5);
  font-size: 13px;
  font-weight: 600;
  color: #22C55E;
  margin-bottom: var(--sp-6);
  width: fit-content;
}

.availability-badge .dot {
  width: 7px;
  height: 7px;
  background: #22C55E;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-6);
  backdrop-filter: blur(10px);
  transition: all var(--t-base);
  text-decoration: none;
  color: inherit;
}

.contact-method:hover {
  border-color: var(--clr-border-accent);
  background: var(--clr-surface-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-glow);
}

.contact-method-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.cm-email  { background: rgba(56, 189, 248, 0.12); color: var(--clr-primary); }
.cm-linkedin { background: rgba(45, 212, 191, 0.12); color: var(--clr-secondary); }
.cm-github { background: rgba(255, 255, 255, 0.08); color: var(--clr-text-muted); }

.contact-method-info {
  flex: 1;
}

.contact-method-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--clr-text-dim);
  margin-bottom: 3px;
}

.contact-method-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--clr-text);
}

.contact-method i.arrow {
  color: var(--clr-text-dim);
  font-size: 14px;
  transition: transform var(--t-base);
}

.contact-method:hover i.arrow {
  color: var(--clr-primary);
  transform: translateX(4px);
}

/* ===========================
   14. FOOTER
   =========================== */
footer {
  background: rgba(0, 0, 0, 0.55);
  border-top: 1px solid var(--clr-border);
  padding: var(--sp-10) 80px;
  backdrop-filter: blur(12px);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: var(--sp-5);
}

.footer-logo {
  font-size: 18px;
  font-weight: 800;
  color: var(--clr-secondary);
}

.footer-copy {
  font-size: 13px;
  color: var(--clr-text-dim);
}

.footer-links {
  display: flex;
  gap: var(--sp-5);
}

.footer-links a {
  font-size: 13px;
  color: var(--clr-text-dim);
  transition: color var(--t-base);
}

.footer-links a:hover {
  color: var(--clr-primary);
}

/* ===========================
   15. SCROLL REVEAL
   =========================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ===========================
   16. KEYFRAME ANIMATIONS
   =========================== */
@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

@keyframes pulse-dot {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0);
  }
}

@keyframes bounce-scroll {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.6; }
  50%       { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Hero entrance */
.hero-badge   { animation: fade-up 0.6s ease both; animation-delay: 0.1s; }
.hero h1      { animation: fade-up 0.6s ease both; animation-delay: 0.2s; }
.hero-role    { animation: fade-up 0.6s ease both; animation-delay: 0.35s; }
.hero p       { animation: fade-up 0.6s ease both; animation-delay: 0.45s; }
.hero-buttons { animation: fade-up 0.6s ease both; animation-delay: 0.55s; }
.hero-stats   { animation: fade-up 0.6s ease both; animation-delay: 0.65s; }

/* ===========================
   17. RESPONSIVE DESIGN
   =========================== */
@media (max-width: 1280px) {
  .section, .section-full {
    padding: var(--sp-20) 80px;
  }

  .hero {
    padding: var(--sp-24) 80px var(--sp-20);
  }

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

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

@media (max-width: 1024px) {
  .mainnav {
    padding: 18px 40px;
  }

  .section, .section-full {
    padding: var(--sp-20) 60px;
  }

  .hero {
    padding: var(--sp-20) 60px;
  }

  .hero h1 {
    font-size: 56px;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: var(--sp-10);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* Show hamburger, hide nav items */
  .hamburger {
    display: flex;
  }

  .navdomains,
  .social-icons {
    display: none;
  }

  .mainnav {
    padding: 16px 24px;
  }

  .hero {
    padding: var(--sp-12) var(--sp-6) var(--sp-12);
    min-height: 80vh;
  }

  .hero h1 {
    font-size: 42px;
    letter-spacing: -1px;
  }

  .hero-role {
    font-size: 20px;
  }

  .hero p {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: var(--sp-3);
  }

  .hero-buttons .btn,
  .hero-buttons .btn-outline {
    text-align: center;
    justify-content: center;
  }

  .hero-stats {
    gap: var(--sp-6);
  }

  .section, .section-full {
    padding: var(--sp-12) var(--sp-6);
  }

  .section h2 {
    font-size: 30px;
  }

  .skills-categories {
    grid-template-columns: 1fr;
  }

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

  .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }

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

  .stats-row {
    gap: var(--sp-6);
  }

  .footer {
    padding: var(--sp-8) var(--sp-6);
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 34px;
  }

  .hero-role {
    font-size: 17px;
  }

  .filter-tabs {
    gap: var(--sp-2);
  }

  .filter-tab {
    padding: 7px 15px;
    font-size: 12px;
  }
}

/* ===========================
   18. ACCESSIBILITY EXTRAS
   =========================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  .hero-badge, .hero h1, .hero-role, .hero p, .hero-buttons, .hero-stats {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* ===========================
   19. PRINT STYLES
   =========================== */
@media print {
  body {
    background: white;
    color: #000;
  }
  .mainnav, footer, .hero-buttons, .scroll-indicator {
    display: none;
  }
  .section {
    padding: 20px 0;
  }
}

/* ===========================
   20. TOAST NOTIFICATION
   =========================== */
.toast-notification {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(10, 15, 26, 0.88);
  border: 1px solid var(--clr-border-accent);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--sp-4) var(--sp-6);
  border-radius: var(--r-md);
  color: var(--clr-text);
  font-family: var(--font-base);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  z-index: 10001;
  transform: translateY(100px);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
  pointer-events: none;
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-notification i {
  color: var(--clr-secondary);
  font-size: 16px;
}

/* Button Reset for contact methods */
button.contact-method {
  width: 100%;
  text-align: left;
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  background: var(--clr-surface);
  color: inherit;
}