/* ═══════════════════════════════════════════════════════════════
   ANUP DAS — PORTFOLIO CSS
   Theme: Navy & Black  |  Font: Times New Roman
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS RESET & VARIABLES ─── */
:root {
  /* Navy & Black Palette */
  --navy-900: #0a0e1a;
  --navy-800: #0d1327;
  --navy-700: #111a38;
  --navy-600: #162045;
  --navy-500: #1b2a5e;
  --navy-400: #243778;
  --navy-300: #3a5199;
  --navy-200: #5e77b8;
  --navy-100: #8fa2d4;
  --navy-50:  #c3cfe8;

  --black-900: #050507;
  --black-800: #0a0a0f;
  --black-700: #111118;
  --black-600: #18182a;

  --gold-500: #c9a84c;
  --gold-400: #d4b85c;
  --gold-300: #e0ca7a;

  --accent: #4a90d9;
  --accent-light: #6aadee;
  --accent-glow: rgba(74, 144, 217, 0.25);

  --cream: #f5f0e6;
  --warm-cream: #f8f3e3;
  --warm-white: #faf8f2;
  --text-light: #e8e4dc;
  --text-muted: #a0a0b0;
  --text-dark: #1a1a2e;

  --card-bg: rgba(15, 18, 35, 0.85);
  --card-border: rgba(74, 144, 217, 0.15);
  --glass-bg: rgba(10, 14, 26, 0.7);
  --glass-border: rgba(255, 255, 255, 0.06);

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 30px rgba(74, 144, 217, 0.15);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

  --font-primary: 'Times New Roman', 'Georgia', 'Palatino Linotype', serif;
  --font-mono: 'Courier New', monospace;

  --section-padding: 100px 0;
  --container-max: 1200px;
  --container-padding: 0 40px;
}

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

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

body {
  font-family: var(--font-primary);
  background: var(--navy-900);
  color: var(--text-light);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-padding);
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--navy-900);
}
::-webkit-scrollbar-thumb {
  background: var(--navy-500);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--navy-400);
}

/* ─── SECTION COMMON ─── */
.section {
  padding: var(--section-padding);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.section-header .section-line {
  width: 70px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--gold-500));
  margin: 15px auto;
  border-radius: 2px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-normal);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 12px 40px;
  box-shadow: var(--shadow-md);
}

.nav-logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-light);
  letter-spacing: 3px;
  position: relative;
}

.nav-logo::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.nav-logo:hover::after {
  transform: scaleX(1);
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-normal);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-light);
}

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

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 5px;
}

.hamburger span {
  width: 28px;
  height: 2px;
  background: var(--text-light);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ═══════════════════════════════════════════════════════════════
   PAGE 1 — LANDING / HERO
   ═══════════════════════════════════════════════════════════════ */
#landing {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 30% 50%, rgba(26, 42, 94, 0.4) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(74, 144, 217, 0.08) 0%, transparent 50%),
              var(--navy-900);
}

/* Animated background particles */
#landing::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.15), transparent),
              radial-gradient(2px 2px at 40% 70%, rgba(255,255,255,0.1), transparent),
              radial-gradient(1px 1px at 60% 20%, rgba(255,255,255,0.12), transparent),
              radial-gradient(1px 1px at 80% 60%, rgba(255,255,255,0.08), transparent),
              radial-gradient(1.5px 1.5px at 10% 80%, rgba(255,255,255,0.1), transparent),
              radial-gradient(1px 1px at 90% 10%, rgba(255,255,255,0.08), transparent);
  background-size: 300px 300px, 400px 400px, 250px 250px, 350px 350px, 500px 500px, 280px 280px;
  animation: starFloat 80s linear infinite;
  pointer-events: none;
}

@keyframes starFloat {
  0% { transform: translate(0, 0); }
  50% { transform: translate(-30px, -20px); }
  100% { transform: translate(0, 0); }
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 2;
  max-width: 850px;
  padding: 0 20px;
}

.hero-content .hero-logo {
  font-size: 1.2rem;
  letter-spacing: 6px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeInDown 0.8s 0.2s forwards;
}

.hero-content h1 {
  font-size: 4.5rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 4px;
  margin-bottom: 20px;
  line-height: 1.1;
  opacity: 0;
  animation: fadeInUp 0.8s 0.4s forwards;
}

.hero-designations {
  font-size: 1rem;
  color: var(--accent-light);
  margin-bottom: 30px;
  letter-spacing: 0.8px;
  opacity: 0;
  animation: fadeInUp 0.8s 0.6s forwards;
  line-height: 1.6;
}

.hero-intro {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  animation: fadeInUp 0.8s 0.8s forwards;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 40px;
  opacity: 0;
  animation: slideUp 0.7s 1s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--navy-400));
  color: #fff;
  box-shadow: 0 4px 15px rgba(74, 144, 217, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(74, 144, 217, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text-light);
  border: 1.5px solid var(--accent);
}

.btn-outline:hover {
  background: rgba(74, 144, 217, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 4px 20px rgba(74, 144, 217, 0.2);
}

/* Shimmer effect on buttons */
.btn::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    to right,
    transparent 0%,
    rgba(255,255,255,0.1) 50%,
    transparent 100%
  );
  transform: rotate(30deg) translateX(-100%);
  transition: transform 0.6s;
}

.btn:hover::after {
  transform: rotate(30deg) translateX(100%);
}

.hero-social {
  display: flex;
  gap: 24px;
  justify-content: center;
}

.hero-social a {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1.5px solid rgba(74, 144, 217, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-spring);
  opacity: 0;
  transform: scale(0.5);
}

.hero-social a.pop-in {
  opacity: 1;
  transform: scale(1);
}

.hero-social a:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 4px 20px rgba(74, 144, 217, 0.25);
  background: rgba(74, 144, 217, 0.08);
}

.hero-social svg {
  width: 22px;
  height: 22px;
}

/* ═══════════════════════════════════════════════════════════════
   PAGE 2 — ABOUT ME
   ═══════════════════════════════════════════════════════════════ */
#about {
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--black-800) 50%, var(--navy-900) 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 60px;
  align-items: start;
}

.about-photo-wrapper {
  position: relative;
  opacity: 0;
  transform: translateX(-60px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-photo-wrapper.animate-in {
  opacity: 1;
  transform: translateX(0);
}

.about-photo {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 3px solid var(--card-border);
  transition: box-shadow 0.5s;
}

.about-photo-wrapper.animate-in .about-photo {
  box-shadow: var(--shadow-lg), 0 0 60px rgba(74, 144, 217, 0.15);
}

.about-view-work {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 25px;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-photo-wrapper.animate-in .about-view-work {
  opacity: 1;
  transform: translateY(0);
}

.about-view-work a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.about-view-work a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-normal);
}

.about-view-work a:hover {
  color: var(--accent-light);
  border-color: var(--accent);
}

.about-view-work a:hover::after {
  width: 100%;
}

.about-view-work a:hover svg {
  transform: translateX(3px);
}

.about-view-work a svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.about-text {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-text.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.about-text h3 {
  font-size: 1.6rem;
  color: var(--text-light);
  margin-bottom: 20px;
}

.about-summary {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 40px;
}

.about-summary p {
  margin-bottom: 16px;
}

/* Mission & Vision Cards */
.mv-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 30px;
}

.mv-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 28px;
  perspective: 1000px;
  opacity: 0;
  transform: rotateY(-90deg);
  transform-origin: left center;
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.mv-card.animate-in {
  opacity: 1;
  transform: rotateY(0);
}

.mv-card:nth-child(2) {
  transition-delay: 0.2s;
}

.mv-card h4 {
  font-size: 1.1rem;
  color: var(--accent-light);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mv-card h4 svg {
  width: 20px;
  height: 20px;
  color: var(--gold-500);
}

.mv-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════
   PAGE 3 — WORK EXPERIENCE
   ═══════════════════════════════════════════════════════════════ */
#experience {
  background: var(--navy-900);
}

.exp-card {
  display: grid;
  grid-template-columns: 300px 1fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 40px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  opacity: 0;
  transform: translateX(-80px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.exp-card:nth-child(even) {
  transform: translateX(80px);
}

.exp-card.animate-in {
  opacity: 1;
  transform: translateX(0);
}

.exp-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.exp-left {
  background: linear-gradient(135deg, var(--navy-700), var(--navy-800));
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.exp-left::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: linear-gradient(135deg, var(--navy-600), var(--navy-700));
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
}

.exp-card.animate-in .exp-left::before {
  width: 100%;
}

.exp-left > * {
  position: relative;
  z-index: 1;
}

.exp-designation {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.exp-company {
  font-size: 1.05rem;
  color: var(--accent-light);
  margin-bottom: 14px;
}

.exp-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.exp-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  background: rgba(74, 144, 217, 0.2);
  color: var(--accent-light);
  border: 1px solid rgba(74, 144, 217, 0.3);
  width: fit-content;
  transition: all var(--transition-normal);
}

.exp-card:hover .exp-badge {
  animation: pulseGlow 1.5s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 5px rgba(74, 144, 217, 0.3); }
  50% { box-shadow: 0 0 20px rgba(74, 144, 217, 0.5); }
}

.exp-location, .exp-duration {
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.exp-location svg, .exp-duration svg {
  width: 14px;
  height: 14px;
}

.exp-right {
  padding: 36px;
}

.exp-description {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.exp-right h4 {
  font-size: 1rem;
  color: var(--accent-light);
  margin-bottom: 12px;
  margin-top: 16px;
}

.exp-right ul li {
  font-size: 0.95rem;
  color: var(--text-muted);
  padding: 6px 0 6px 20px;
  position: relative;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.exp-right ul li.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.exp-right ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ═══════════════════════════════════════════════════════════════
   PAGE 4 — EDUCATION
   ═══════════════════════════════════════════════════════════════ */
#education {
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--black-800) 100%);
}

.edu-card {
  display: grid;
  grid-template-columns: 320px 1fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 40px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  opacity: 0;
  transform: translateY(-60px) rotate(-2deg);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.edu-card.animate-from-below {
  transform: translateY(60px) rotate(2deg);
}

.edu-card.animate-in {
  opacity: 1;
  transform: translateY(0) rotate(0);
}

.edu-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* Golden border trace on hover */
.edu-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  transition: border-color 0.5s;
  pointer-events: none;
}

.edu-card:hover::after {
  border-color: var(--gold-500);
  animation: borderTrace 1.5s ease-in-out;
}

@keyframes borderTrace {
  0% { clip-path: inset(0 100% 100% 0); }
  25% { clip-path: inset(0 0 100% 0); }
  50% { clip-path: inset(0 0 0 0); }
  75% { clip-path: inset(0 0 0 0); }
  100% { clip-path: inset(0 0 0 0); }
}

.edu-left {
  background: linear-gradient(135deg, var(--navy-700), var(--navy-800));
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.edu-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: inline-block;
  transition: transform var(--transition-spring);
}

.edu-card:hover .edu-icon {
  animation: capToss 0.6s ease-in-out;
}

@keyframes capToss {
  0% { transform: translateY(0) rotate(0); }
  30% { transform: translateY(-15px) rotate(-10deg); }
  60% { transform: translateY(-8px) rotate(5deg); }
  100% { transform: translateY(0) rotate(0); }
}

.edu-qualification {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.edu-institution {
  font-size: 1rem;
  color: var(--accent-light);
  margin-bottom: 14px;
}

.edu-meta-item {
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.edu-grade {
  margin-top: 10px;
  padding: 6px 14px;
  background: rgba(201, 168, 76, 0.15);
  border: 1px solid rgba(201, 168, 76, 0.3);
  border-radius: var(--radius-sm);
  color: var(--gold-400);
  font-size: 0.9rem;
  width: fit-content;
}

.edu-right {
  padding: 36px;
}

.edu-right .edu-description {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.edu-right h4 {
  font-size: 1rem;
  color: var(--accent-light);
  margin-bottom: 12px;
  margin-top: 16px;
}

.edu-right ul li {
  font-size: 0.95rem;
  color: var(--text-muted);
  padding: 4px 0 4px 20px;
  position: relative;
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.edu-right ul li.typewriter-in {
  opacity: 1;
}

.edu-right ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--gold-500);
}

.coursework-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 24px;
}

.edu-activities {
  margin-top: 16px;
}

.edu-activities span {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  background: rgba(74, 144, 217, 0.1);
  border: 1px solid rgba(74, 144, 217, 0.2);
  color: var(--accent-light);
  margin: 3px;
}

/* ═══════════════════════════════════════════════════════════════
   PAGE 5 — PROJECTS
   ═══════════════════════════════════════════════════════════════ */
#projects {
  background: var(--navy-900);
}

.project-card {
  display: grid;
  grid-template-columns: 320px 1fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 40px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
}

.project-left {
  background: linear-gradient(135deg, var(--navy-700), var(--navy-800));
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  transform: translateX(-80px);
  filter: blur(8px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card.animate-in .project-left {
  opacity: 1;
  transform: translateX(0);
  filter: blur(0);
}

.project-card:hover .project-left {
  background: linear-gradient(135deg, var(--navy-600), var(--navy-700));
  box-shadow: inset 0 0 40px rgba(201, 168, 76, 0.08);
}

.project-number {
  font-size: 3rem;
  font-weight: 700;
  color: rgba(74, 144, 217, 0.2);
  margin-bottom: 12px;
  line-height: 1;
}

.project-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  transition: letter-spacing var(--transition-normal);
}

.project-card:hover .project-title {
  letter-spacing: 1.5px;
}

.project-type {
  font-size: 0.85rem;
  color: var(--accent-light);
  margin-bottom: 6px;
}

.project-duration {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.project-github-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding: 8px 16px;
  border: 1px solid rgba(74, 144, 217, 0.3);
  border-radius: var(--radius-sm);
  color: var(--accent-light);
  font-size: 0.85rem;
  transition: all var(--transition-normal);
}

.project-github-link:hover {
  background: rgba(74, 144, 217, 0.15);
  border-color: var(--accent);
}

.project-right {
  padding: 36px;
  opacity: 0;
  transition: opacity 0.6s 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card.animate-in .project-right {
  opacity: 1;
}

.project-description {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.project-outcomes h4 {
  font-size: 1rem;
  color: var(--accent-light);
  margin-bottom: 14px;
}

.outcome-boxes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.outcome-box {
  background: rgba(74, 144, 217, 0.06);
  border: 1px solid rgba(74, 144, 217, 0.15);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  gap: 12px;
  align-items: start;
  opacity: 0;
  transform: scale(0.8) translateY(15px);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.outcome-box.pop-in {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.outcome-num {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 28px;
}

.outcome-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tech-pill {
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  background: rgba(201, 168, 76, 0.08);
  border: 1px solid rgba(201, 168, 76, 0.2);
  color: var(--gold-400);
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.tech-pill.bounce-in {
  opacity: 1;
  transform: scale(1);
}

.project-card:hover .tech-pill {
  animation: pillShimmer 1.5s ease-in-out;
}

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

/* ═══════════════════════════════════════════════════════════════
   PAGE 6 — SKILLS
   ═══════════════════════════════════════════════════════════════ */
#skills {
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--black-800) 50%, var(--navy-900) 100%);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.skill-category {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 28px;
  opacity: 0;
  transform: scale(0.85);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-category.animate-in {
  opacity: 1;
  transform: scale(1);
}

.skill-category:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(74, 144, 217, 0.25);
}

.skill-category:hover .skill-cat-icon {
  animation: spin360 1.5s ease-in-out;
}

@keyframes spin360 {
  0% { transform: rotate(0); }
  100% { transform: rotate(360deg); }
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.skill-cat-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--navy-400));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  transition: transform 0.5s;
}

.skill-cat-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-light);
}

.skill-item {
  margin-bottom: 14px;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

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

.skill-percent {
  font-size: 0.85rem;
  color: var(--accent-light);
  font-weight: 600;
}

.skill-bar {
  width: 100%;
  height: 6px;
  background: rgba(74, 144, 217, 0.1);
  border-radius: 3px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--gold-500));
  width: 0%;
  transition: width 1s ease-out;
}

/* ═══════════════════════════════════════════════════════════════
   PAGE 7 — CERTIFICATIONS
   ═══════════════════════════════════════════════════════════════ */
#certifications {
  background: var(--navy-900);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 28px;
}

.cert-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  opacity: 0;
  transform: translateY(40px) rotate(var(--random-rot, 0deg));
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.cert-card.animate-in {
  opacity: 1;
  transform: translateY(0) rotate(0deg);
}

.cert-card:hover {
  transform: perspective(600px) rotateY(var(--tilt-x, 0deg)) rotateX(var(--tilt-y, 0deg));
  box-shadow: var(--shadow-lg);
  background: rgba(20, 24, 40, 0.95);
}

.cert-image-wrapper {
  height: 200px;
  overflow: hidden;
  position: relative;
  background: var(--navy-800);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.cert-card:hover .cert-image-wrapper img {
  transform: scale(1.05);
}

.cert-image-placeholder {
  color: var(--text-muted);
  font-size: 3rem;
  opacity: 0.3;
}

.cert-body {
  padding: 20px 24px;
}

.cert-provider {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  background: rgba(74, 144, 217, 0.15);
  color: var(--accent-light);
  border: 1px solid rgba(74, 144, 217, 0.25);
  margin-bottom: 10px;
}

.cert-name {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-light);
  line-height: 1.4;
}

/* ═══════════════════════════════════════════════════════════════
   PAGE 8 — ACHIEVEMENTS
   ═══════════════════════════════════════════════════════════════ */
#achievements {
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--black-800) 100%);
}

.achievement-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 28px;
}

.ach-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  opacity: 0;
  transform: scale(0.7);
  transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.ach-card.animate-in {
  opacity: 1;
  transform: scale(1);
}

.ach-card:hover {
  box-shadow: var(--shadow-lg);
}

/* Gold border trace on hover */
.ach-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: border-color 0.5s;
  pointer-events: none;
}

.ach-card:hover::after {
  border-color: var(--gold-500);
}

.ach-image-wrapper {
  height: 200px;
  overflow: hidden;
  position: relative;
  background: var(--navy-800);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ach-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: kenBurns 20s ease-in-out infinite alternate;
}

@keyframes kenBurns {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.1) translate(-2%, -1%); }
}

.ach-body {
  padding: 24px;
}

.ach-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  margin-bottom: 10px;
  transition: all var(--transition-normal);
}

.ach-category-badge.professional {
  background: rgba(74, 144, 217, 0.15);
  color: var(--accent-light);
  border: 1px solid rgba(74, 144, 217, 0.25);
}

.ach-category-badge.academic {
  background: rgba(201, 168, 76, 0.15);
  color: var(--gold-400);
  border: 1px solid rgba(201, 168, 76, 0.25);
}

.ach-card:hover .ach-category-badge {
  box-shadow: 0 0 15px rgba(201, 168, 76, 0.3);
}

.ach-year {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.ach-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 6px;
}

.ach-institution {
  font-size: 0.9rem;
  color: var(--accent-light);
  margin-bottom: 10px;
}

.ach-description {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.ach-trophy {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 1.8rem;
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.ach-card.animate-in .ach-trophy {
  opacity: 1;
  transform: scale(1);
  animation: trophyGlow 2s ease-in-out 0.5s;
}

@keyframes trophyGlow {
  0%, 100% { filter: drop-shadow(0 0 0 transparent); }
  50% { filter: drop-shadow(0 0 10px rgba(201, 168, 76, 0.6)); }
}

/* ═══════════════════════════════════════════════════════════════
   PAGE 9 — CONTACT
   ═══════════════════════════════════════════════════════════════ */
#contact {
  background: var(--navy-900);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-form-panel {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  opacity: 0;
  transform: translateY(40px) translateX(-20px) rotate(-1deg);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-form-panel.animate-in {
  opacity: 1;
  transform: translateY(0) translateX(0) rotate(0);
}

.contact-info-panel {
  background: linear-gradient(135deg, var(--navy-700), var(--navy-800));
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  opacity: 0;
  transform: translateY(40px) translateX(20px) rotate(1deg);
  transition: all 0.7s 0.1s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-info-panel.animate-in {
  opacity: 1;
  transform: translateY(0) translateX(0) rotate(0);
}

.contact-form-panel h3,
.contact-info-panel h3 {
  font-size: 1.5rem;
  color: var(--text-light);
  margin-bottom: 30px;
}

/* Floating label input */
.form-group {
  position: relative;
  margin-bottom: 28px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 0 10px;
  font-family: var(--font-primary);
  font-size: 1rem;
  color: var(--text-light);
  background: transparent;
  border: none;
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
  outline: none;
  transition: border-color var(--transition-normal);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group label {
  position: absolute;
  top: 14px;
  left: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: all var(--transition-normal);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
  top: -8px;
  font-size: 0.75rem;
  color: var(--accent-light);
}

/* Underline animation */
.form-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--gold-500));
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line {
  width: 100%;
}

.btn-send {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--accent), var(--navy-400));
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.btn-send:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(74, 144, 217, 0.35);
}

.btn-send::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    rgba(255,255,255,0.15) 50%,
    transparent 100%
  );
  transition: left 0.5s;
}

.btn-send:hover::after {
  left: 100%;
}

.btn-send.pulse-once {
  animation: pulseSend 0.8s ease-in-out;
}

@keyframes pulseSend {
  0%, 100% { box-shadow: 0 4px 15px rgba(74, 144, 217, 0.3); }
  50% { box-shadow: 0 4px 30px rgba(74, 144, 217, 0.5); }
}

/* Contact info items */
.contact-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.contact-row:hover {
  transform: translateX(8px);
}

.contact-row:hover .contact-icon {
  color: var(--accent-light);
  background: rgba(74, 144, 217, 0.15);
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-normal);
  flex-shrink: 0;
}

.contact-icon svg {
  width: 18px;
  height: 18px;
}

.contact-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-value {
  font-size: 0.95rem;
  color: var(--text-light);
}

.contact-social-row {
  display: flex;
  gap: 12px;
  margin-top: 30px;
}

.contact-social-row a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-normal);
}

.contact-social-row a:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  transform: translateY(-3px);
  background: rgba(74, 144, 217, 0.1);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
.footer {
  background: var(--black-800);
  border-top: 1px solid var(--glass-border);
  padding: 40px 0;
  text-align: center;
}

.footer-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.footer-social {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 20px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-normal);
}

.footer-social a:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  transform: translateY(-3px);
}

.footer-copy {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.3);
}

/* ═══════════════════════════════════════════════════════════════
   KEYFRAME ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideUp {
  from { opacity: 0; transform: translateY(25px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-photo-wrapper {
    max-width: 350px;
    margin: 0 auto;
  }

  .exp-card,
  .edu-card,
  .project-card {
    grid-template-columns: 1fr;
  }

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

  .mv-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 70px 0;
    --container-padding: 0 20px;
  }

  .navbar {
    padding: 14px 20px;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10, 14, 26, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 80px 30px;
    gap: 24px;
    transition: right var(--transition-normal);
    border-left: 1px solid var(--glass-border);
  }

  .nav-links.open {
    right: 0;
  }

  .hamburger {
    display: flex;
  }

  .hero-content h1 {
    font-size: 2.8rem;
    letter-spacing: 2px;
  }

  .hero-designations {
    font-size: 0.88rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .section-header h2 {
    font-size: 2rem;
  }

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

  .cert-grid,
  .achievement-grid {
    grid-template-columns: 1fr;
  }

  .achievement-stats {
    gap: 30px;
  }

  .stat-number {
    font-size: 2.2rem;
  }

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

  .outcome-boxes {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 2.2rem;
  }

  .hero-intro {
    font-size: 0.95rem;
  }

  .exp-left, .edu-left, .project-left {
    padding: 24px 20px;
  }

  .exp-right, .edu-right, .project-right {
    padding: 24px 20px;
  }

  .contact-form-panel,
  .contact-info-panel {
    padding: 28px 20px;
  }
}

/* ─── BACK TO TOP BUTTON ─── */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--navy-400));
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: 999;
  box-shadow: var(--shadow-md);
}

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

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 25px rgba(74, 144, 217, 0.4);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ─── LOADING SCREEN ─── */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--navy-900);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s, visibility 0.6s;
}

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

.loader-text {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-light);
  letter-spacing: 6px;
  animation: loaderPulse 1.5s ease-in-out infinite;
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 350px));
    justify-content: center;
    gap: 2rem;
}

@keyframes loaderPulse {
  0%, 100% { opacity: 0.4; transform: scale(0.97); }
  50% { opacity: 1; transform: scale(1); }
}