/* =====================================================
   PORTFOLIO - MODERN MINIMAL DESIGN
   Author: Naufal Fadhila Falih
   ===================================================== */

/* ================= DESIGN TOKENS ================= */
:root {
  --bg-primary: #050510;
  --bg-secondary: #0a0a1a;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --bg-input: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --primary: #2563eb;
  --primary-light: #3b82f6;
  --primary-glow: rgba(37, 99, 235, 0.15);
  --primary-glow-strong: rgba(37, 99, 235, 0.3);
  --radius: 20px;
  --radius-lg: 24px;
  --radius-sm: 12px;
  --radius-full: 9999px;
  --font: 'Poppins', sans-serif;
  --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.15s ease;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-10: 80px;
  --space-12: 96px;
  --space-16: 128px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul, ol {
  list-style: none;
}

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

button {
  font-family: var(--font);
  cursor: pointer;
  border: none;
  outline: none;
}

input, textarea {
  font-family: var(--font);
  outline: none;
}

::selection {
  background: var(--primary);
  color: white;
}

/* ================= SCROLLBAR ================= */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ================= SCROLL PROGRESS ================= */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--primary);
  z-index: 10000;
  width: 0%;
  transition: width 0.1s linear;
}

/* ================= CONTAINER ================= */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* ================= SECTION ================= */
.section {
  padding: var(--space-12) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
  padding: 6px 16px;
  background: var(--primary-glow);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-full);
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: var(--space-2);
}

/* ================= TYPOGRAPHY ================= */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* ================= BUTTONS ================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 16px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--primary-glow-strong);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 16px;
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

/* Ripple effect */
.btn-primary .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: ripple 0.6s ease-out;
  pointer-events: none;
}

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

/* ================= CARDS ================= */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* ================= NAVBAR ================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  display: flex;
  align-items: center;
  z-index: 1000;
  background: rgba(5, 5, 16, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  background: rgba(5, 5, 16, 0.95);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: width var(--transition);
}

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

.nav-mobile-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-mobile-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

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

.nav-mobile-btn.active span:nth-child(2) {
  opacity: 0;
}

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

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(5, 5, 16, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: var(--space-4);
  z-index: 999;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 14px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  transition: color var(--transition-fast);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

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

/* ================= HERO ================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: var(--space-10);
}

.hero-content {
  flex: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-name {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-3);
  letter-spacing: -0.03em;
}

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

.hero-typing {
  font-size: 24px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
  min-height: 36px;
}

.hero-typing .cursor {
  display: inline-block;
  width: 2px;
  height: 24px;
  background: var(--primary);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

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

.hero-description {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: var(--space-5);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

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

.hero-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 18px;
  transition: var(--transition);
}

.hero-social a:hover {
  color: var(--text-primary);
  border-color: var(--primary);
  background: var(--primary-glow);
  transform: translateY(-2px);
}

.hero-image {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
}

.hero-image-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  opacity: 0.3;
  animation: ring-rotate 12s linear infinite;
}

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

.hero-image-ring::before {
  content: '';
  position: absolute;
  top: -4px;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  transform: translateX(-50%);
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--border);
}

.hero-image-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

/* ================= ABOUT ================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

.about-intro h3 {
  font-size: 28px;
  margin-bottom: var(--space-3);
}

.about-intro p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.stat-card {
  padding: var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.stat-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}

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

.about-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.info-item {
  padding: var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.info-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.info-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.skill-card {
  padding: var(--space-3);
}

.skill-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.skill-name {
  font-size: 16px;
  font-weight: 600;
}

.skill-percent {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.skill-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-full);
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ================= EXPERIENCE / TIMELINE ================= */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: var(--space-6);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-6);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-6) + 1px);
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--primary);
}

.timeline-year {
  display: inline-block;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-glow);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-2);
}

.timeline-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ================= PROJECTS ================= */
.project-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.project-card {
  overflow: hidden;
  cursor: default;
}

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

.project-card-image {
  position: relative;
  overflow: hidden;
  height: 200px;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.project-card-body {
  padding: var(--space-3);
}

.project-card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.project-card-tech {
  font-size: 13px;
  color: var(--text-tertiary);
  font-family: 'Courier New', monospace;
  margin-bottom: var(--space-2);
}

.project-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast);
}

.project-card-link:hover {
  gap: 8px;
}

.project-card-link svg {
  width: 16px;
  height: 16px;
}

/* ================= CERTIFICATES ================= */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.certificate-card {
  padding: var(--space-3);
  text-align: center;
}

.certificate-card-image {
  width: 100%;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
  border: 1px solid var(--border);
  overflow: hidden;
}

.certificate-card-image img {
  width: 100%;
  height: auto;
}

.certificate-card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.certificate-card-year {
  font-size: 13px;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* ================= CONTACT ================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-5);
  align-items: start;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.contact-info-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 50%;
  background: var(--primary-glow);
  border: 1px solid rgba(37, 99, 235, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
}

.contact-info-text h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}

.contact-info-text p {
  font-size: 14px;
  color: var(--text-secondary);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input,
.form-textarea {
  padding: 14px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  padding: 14px;
  font-size: 15px;
}

.form-status {
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  min-height: 20px;
}

.form-status.success {
  color: #22c55e;
}

.form-status.error {
  color: #ef4444;
}

/* ================= FOOTER ================= */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-8) 0 var(--space-6);
}

.footer-content {
  text-align: center;
}

.footer-logo {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

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

.footer-tagline {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 16px;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
}

.footer-copyright {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ================= MOBILE BOTTOM NAV ================= */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(5, 5, 16, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  z-index: 1000;
  justify-content: space-around;
  align-items: center;
  padding: 0 var(--space-2);
}

.mobile-bottom-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--text-tertiary);
  font-size: 10px;
  font-weight: 600;
  transition: color var(--transition-fast);
  padding: 4px 12px;
}

.mobile-bottom-nav a svg {
  width: 20px;
  height: 20px;
}

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

/* ================= SCROLL TO TOP ================= */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  box-shadow: 0 4px 16px var(--primary-glow);
  transition: var(--transition);
  cursor: pointer;
}

.scroll-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--primary-glow-strong);
}

.scroll-top.visible {
  display: flex;
}

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

/* ================= MODAL ================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  position: relative;
  animation: modal-in 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  font-size: 18px;
}

.modal-close:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.modal-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}

.modal-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-3);
}

.modal-tag {
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
}

/* ================= ANIMATIONS ================= */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger.visible > *:nth-child(1) { transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.05s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.1s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.15s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.2s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.25s; }

.stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ================= REDUCED MOTION ================= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .fade-up {
    opacity: 1;
    transform: none;
  }

  .stagger > * {
    opacity: 1;
    transform: none;
  }
}

/* ================= RESPONSIVE: TABLET (768px) ================= */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-5);
  }

  .section {
    padding: var(--space-16) 0;
  }

  .section-title {
    font-size: 42px;
  }

  .hero-name {
    font-size: 64px;
  }
}

/* ================= RESPONSIVE: LAPTOP (1024px) ================= */
@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }

  .hero-name {
    font-size: 72px;
  }

  .hero-image-wrapper {
    width: 380px;
    height: 380px;
  }
}

/* ================= RESPONSIVE: MOBILE (max 767px) ================= */
@media (max-width: 767px) {
  .nav-links {
    display: none;
  }

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

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

  .section {
    padding: var(--space-10) 0;
  }

  .section-title {
    font-size: 28px;
  }

  /* Hero */
  .hero .container {
    flex-direction: column-reverse;
    text-align: center;
    gap: var(--space-6);
  }

  .hero-name {
    font-size: 36px;
  }

  .hero-typing {
    font-size: 18px;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero-social {
    justify-content: center;
  }

  .hero-image-wrapper {
    width: 240px;
    height: 240px;
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

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

  .about-info {
    grid-template-columns: 1fr 1fr;
  }

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

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

  /* Certificates */
  .certificates-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  /* Footer padding for bottom nav */
  .footer {
    padding-bottom: calc(var(--space-6) + 64px);
  }

  .scroll-top {
    bottom: 80px;
    right: 16px;
  }
}

/* ================= RESPONSIVE: SMALL MOBILE (max 480px) ================= */
@media (max-width: 480px) {
  .hero-name {
    font-size: 30px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

  .about-info {
    grid-template-columns: 1fr;
  }

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

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

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

  .project-filters {
    gap: 6px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 12px;
  }

  .contact-form {
    padding: var(--space-3);
  }

  .timeline {
    padding-left: var(--space-5);
  }
}