/* ============================================================
   ALLBASE LAYOUT STYLES (HEADER, HERO 2-COLUMN, SECTIONS, FOOTER)
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition-normal);
}

html[data-theme="dark"] .site-header {
  background: rgba(15, 27, 50, 0.85);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-soft) 0%, var(--surface-secondary) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.brand-name span {
  color: var(--primary);
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background-color: var(--primary-soft);
  font-weight: 600;
}

/* Section Layouts */
.section {
  padding: 80px 24px;
  position: relative;
}

.section-alt {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* Hero Section (Desktop 2-Column) */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
  max-width: 1280px;
  margin-inline: auto;
  padding: 24px 0;
}

.hero-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  font-size: 2.6rem;
  line-height: 1.2;
  margin-bottom: 18px;
  color: var(--text-primary);
}

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

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  max-width: 580px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-link-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(8px);
  animation: socialReveal 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  touch-action: manipulation;
}

.social-link-btn:nth-child(1) { animation-delay: 0.1s; }
.social-link-btn:nth-child(2) { animation-delay: 0.2s; }
.social-link-btn:nth-child(3) { animation-delay: 0.3s; }

@keyframes socialReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.social-link-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.social-link-btn:active {
  transform: scale(0.96);
}

/* Hero Right Profile Area (Integrated Profile Visual) */
.hero-right {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* Visual Bridge Element connecting Social Icons & Photo on Mobile */
.profile-bridge {
  display: none;
}

@media (max-width: 991px) {
  .profile-bridge {
    display: block;
    width: 1px;
    height: 24px;
    margin: 10px auto 0;
    background: linear-gradient(
      to bottom,
      rgba(37, 99, 235, 0),
      rgba(37, 99, 235, 0.45)
    );
    position: relative;
  }

  .profile-bridge::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -3px;
    width: 6px;
    height: 6px;
    transform: translateX(-50%);
    border-radius: 50%;
    background: #60a5fa;
    box-shadow: 0 0 8px rgba(96, 165, 250, 0.6);
  }
}

/* Profile Visual Wrapper */
.profile-visual {
  position: relative;
  width: min(100%, 390px);
  aspect-ratio: 4 / 5;
  margin-inline: auto;
  padding: 0;
  background: transparent;
  opacity: 0;
  transform: translateY(24px) scale(0.97);
  animation: profileReveal 0.85s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: 0.35s;
  will-change: transform, opacity;
}

@keyframes profileReveal {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Floating Animation Container */
.profile-float {
  position: relative;
  width: 100%;
  height: 100%;
  animation: profileFloat 5.5s ease-in-out infinite;
  will-change: transform;
}

@keyframes profileFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

/* Background Radial Glow Backdrop */
.profile-visual::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 8% -14% 2%;
  border-radius: 45%;
  background: radial-gradient(
    circle at center,
    rgba(37, 99, 235, 0.18),
    rgba(96, 165, 250, 0.08) 48%,
    transparent 72%
  );
  filter: blur(10px);
  animation: profileGlow 4.5s ease-in-out infinite;
  pointer-events: none;
  will-change: transform, opacity;
}

@keyframes profileGlow {
  0%, 100% {
    opacity: 0.6;
    transform: scale(0.98);
  }
  50% {
    opacity: 1;
    transform: scale(1.03);
  }
}

/* Photo Frame */
.profile-photo-frame {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid rgba(37, 99, 235, 0.22);
  background: transparent;
  box-shadow:
    0 18px 45px rgba(15, 61, 145, 0.13),
    0 5px 16px rgba(37, 99, 235, 0.08);
}

.profile-photo-frame img, .profile-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center 42%;
  border-radius: 24px;
}

/* Soft Bottom Gradient Overlay */
.profile-photo-frame::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 38%;
  background: linear-gradient(
    to top,
    rgba(5, 18, 40, 0.86),
    rgba(5, 18, 40, 0.28),
    transparent
  );
  pointer-events: none;
  border-radius: 0 0 24px 24px;
}

/* Internal Photo Overlay (Name & Role) */
.profile-photo-overlay {
  position: absolute;
  z-index: 4;
  left: 16px;
  right: 16px;
  bottom: 16px;
  text-align: center;
  color: #ffffff;
}

.profile-photo-overlay h3 {
  margin: 0 0 4px;
  font-size: 0.96rem;
  font-weight: 750;
  color: #ffffff;
  font-family: var(--font-heading);
}

.profile-photo-overlay p {
  margin: 0;
  color: #bfdbfe;
  font-size: 0.67rem;
  line-height: 1.4;
  font-family: var(--font-mono);
}

/* Scanner Line Animation */
.profile-scan-line {
  position: absolute;
  z-index: 3;
  left: 5%;
  right: 5%;
  top: 12%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(96, 165, 250, 0.55),
    transparent
  );
  box-shadow: 0 0 10px rgba(37, 99, 235, 0.25);
  animation: profileScan 7s ease-in-out infinite;
  pointer-events: none;
}

@keyframes profileScan {
  0%, 12% {
    top: 12%;
    opacity: 0;
  }
  22% {
    opacity: 0.4;
  }
  75% {
    opacity: 0.3;
  }
  88%, 100% {
    top: 88%;
    opacity: 0;
  }
}

/* Status Tag (Top Right) */
.profile-status-tag {
  position: absolute;
  top: -10px;
  right: -10px;
  z-index: 4;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(37, 99, 235, 0.22);
  box-shadow: 0 4px 14px rgba(15, 61, 145, 0.1);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

html[data-theme="dark"] .profile-status-tag {
  background: rgba(13, 30, 58, 0.88);
  border-color: rgba(96, 165, 250, 0.28);
  color: var(--text-primary);
}

/* Decorative Network Nodes */
.profile-node {
  position: absolute;
  z-index: 1;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #60a5fa;
  box-shadow: 0 0 10px rgba(96, 165, 250, 0.65);
  animation: nodePulse 2.8s ease-in-out infinite;
  pointer-events: none;
}

.profile-node-1 { top: 8%; left: -8px; }
.profile-node-2 { top: 48%; right: -8px; animation-delay: 0.7s; }
.profile-node-3 { bottom: 12%; left: -8px; animation-delay: 1.4s; }

@keyframes nodePulse {
  0%, 100% {
    opacity: 0.45;
    transform: scale(0.85);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
}

/* Network Connection Line & Data Flow */
.profile-connection {
  position: absolute;
  top: 10%;
  left: -8px;
  width: 30px;
  height: 1px;
  background: rgba(96, 165, 250, 0.2);
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.profile-connection::after {
  content: "";
  position: absolute;
  width: 28%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(96, 165, 250, 0.8),
    transparent
  );
  animation: dataFlow 3.5s linear infinite;
}

@keyframes dataFlow {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(350%);
  }
}



/* Footer Layout */
.site-footer {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  padding: 40px 24px 24px;
}

.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}