/* ===========================
   Portfolio — Premium Dark Theme
   =========================== */

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

/* ── CSS Variables ── */
:root {
  --bg-primary: #0a0f1c;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-cyan: #00d4ff;
  --accent-purple: #7b2ff7;
  --accent-blue: #3b82f6;
  --accent-gradient: linear-gradient(135deg, #00d4ff, #7b2ff7);
  --accent-gradient-hover: linear-gradient(135deg, #7b2ff7, #00d4ff);
  --glow-cyan: 0 0 20px rgba(0, 212, 255, 0.3);
  --glow-purple: 0 0 20px rgba(123, 47, 247, 0.3);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-body: 'Inter', system-ui, sans-serif;
  --font-heading: 'Outfit', system-ui, sans-serif;
}

/* ── Reset & Base ── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

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

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

/* ── Utility ── */
.section {
  padding: 100px 0;
  position: relative;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .section-subtitle {
  margin: 0 auto;
}

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

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 15, 28, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  padding: 12px 0;
}

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

.nav-brand {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-links a {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: var(--transition);
}

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

.nav-cta {
  background: var(--accent-gradient) !important;
  color: #fff !important;
  font-weight: 600 !important;
  padding: 8px 20px !important;
}

.nav-cta:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  margin: 6px 0;
  transition: var(--transition);
  border-radius: 2px;
}

/* ── Hero Section ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 50%, rgba(123, 47, 247, 0.06) 0%, transparent 50%);
  animation: heroBgPulse 8s ease-in-out infinite alternate;
}

@keyframes heroBgPulse {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-2%, 2%) scale(1.05); }
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  order: 1;
}

.hero-greeting {
  font-size: 1rem;
  color: var(--accent-cyan);
  font-weight: 500;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-greeting::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--accent-cyan);
}

.hero-name {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 4px;
  letter-spacing: -1px;
}

.hero-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 20px;
  min-height: 2rem;
}

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

.hero-title .cursor {
  display: inline-block;
  width: 2px;
  height: 1.3em;
  background: var(--accent-cyan);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.8s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 480px;
  margin-bottom: 32px;
  line-height: 1.8;
}

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

.hero-image {
  order: 2;
  display: flex;
  justify-content: center;
}

.hero-img-wrapper {
  position: relative;
  width: 340px;
  height: 420px;
}

.hero-img-wrapper::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 999px 999px 40% 40%;
  background: var(--accent-gradient);
  opacity: 0.5;
  filter: blur(20px);
  z-index: 0;
}

.hero-img-wrapper img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 999px 999px 40% 40%;
  border: 3px solid var(--border-glass);
}

/* ── Buttons ── */
.btn-primary-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--accent-gradient);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary-custom:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.btn-outline-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 12px;
  border: 1px solid var(--border-glass);
  cursor: pointer;
  transition: var(--transition);
}

.btn-outline-custom:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.1);
  transform: translateY(-2px);
}

/* ── Social Links ── */
.social-links {
  display: flex;
  gap: 12px;
  margin-top: 28px;
}

.social-links a {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: var(--transition);
}

.social-links a:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.05);
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan);
}

/* ── Stats ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  transition: var(--transition);
}

.stat-item:hover {
  border-color: rgba(0, 212, 255, 0.2);
  transform: translateY(-4px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── Experience Timeline ── */
.experience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

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

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

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -37px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-gradient);
  box-shadow: var(--glow-cyan);
}

.timeline-company {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.timeline-role {
  font-size: 0.9rem;
  color: var(--accent-cyan);
  font-weight: 500;
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── Skills ── */
.skills-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.skill-item label span {
  color: var(--accent-cyan);
  font-weight: 600;
}

.skill-bar {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  width: 0;
  border-radius: 10px;
  background: var(--accent-gradient);
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-fill.animated {
  /* width set via inline style */
}

/* ── Glass Cards ── */
.glass-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: var(--transition);
}

.glass-card:hover {
  border-color: rgba(0, 212, 255, 0.15);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.glass-card .card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(0, 212, 255, 0.08);
  color: var(--accent-cyan);
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.glass-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.glass-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ── Certifications ── */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.cert-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.cert-card:hover {
  border-color: rgba(0, 212, 255, 0.15);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.cert-card .cert-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition);
}

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

.cert-card .cert-img-wrapper {
  overflow: hidden;
}

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

.cert-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.cert-card .cert-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-cyan);
  transition: var(--transition);
}

.cert-card .cert-link:hover {
  gap: 10px;
}

/* ── Companies ── */
.company-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.company-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}

.company-card:hover {
  border-color: rgba(0, 212, 255, 0.15);
  transform: translateY(-4px);
}

.company-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.company-logo {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-glass);
}

.company-name {
  font-size: 1rem;
  font-weight: 700;
}

.company-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.company-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.company-stars {
  margin-top: 12px;
  color: #fbbf24;
  font-size: 0.9rem;
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
}

.contact-info-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 40px 32px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.08);
  border-radius: 10px;
  color: var(--accent-cyan);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-info-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.contact-info-value {
  font-weight: 500;
  font-size: 0.95rem;
}

.contact-form-wrapper {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 40px 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

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

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-status {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}

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

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

/* ── Footer ── */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-glass);
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-social a:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.footer-quote {
  font-style: italic;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Scroll Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ── Responsive ── */
@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content { order: 2; }
  .hero-image { order: 1; }

  .hero-greeting { justify-content: center; }
  .hero-desc { margin: 0 auto 32px; }
  .hero-btns { justify-content: center; }
  .social-links { justify-content: center; }

  .hero-img-wrapper {
    width: 260px;
    height: 320px;
  }

  .hero-name { font-size: 2.5rem; }

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

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

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

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

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .section-title { font-size: 2rem; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 15, 28, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border-glass);
  }

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

  .nav-toggle {
    display: block;
  }

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

  .stats-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .stat-number { font-size: 1.6rem; }

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

@media (max-width: 480px) {
  .hero-name { font-size: 2rem; }
  .hero-title { font-size: 1.2rem; }
  .hero-img-wrapper {
    width: 200px;
    height: 260px;
  }
}