/* =============================================
   Portfolio — styles.css
   Palette: Blue #3B82F6 | Navy #070c18 | Cool White #f0f6ff
   ============================================= */

/* --- Variables --- */
:root {
  --primary: #3b82f6;
  --primary-dim: #2563eb;
  --primary-glow: rgba(59, 130, 246, 0.15);
  --bg-900: #070c18;
  --bg-800: #0d1626;
  --bg-700: #1a2540;
  --bg-600: #243050;
  --text-400: #6b80a0;
  --text-200: #b8c9e0;
  --white: #f0f6ff;
  --font-main: "Inter", sans-serif;
  --transition: 0.25s ease;
}

/* --- Global --- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-900);
  color: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.text-accent {
  color: var(--primary) !important;
}

/* --- Nav --- */
.navbar {
  background-color: rgba(7, 12, 24, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(59, 130, 246, 0.15);
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
  transition: background-color var(--transition);
}

.navbar-brand {
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--white) !important;
}

.nav-link {
  color: var(--text-200) !important;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 0.4rem 0.75rem !important;
  transition: color var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary) !important;
}

.btn-outline-accent {
  border: 1.5px solid var(--primary);
  color: var(--primary);
  background: transparent;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 1rem;
  border-radius: 4px;
  transition:
    background-color var(--transition),
    color var(--transition);
}

.btn-outline-accent:hover {
  background-color: var(--primary);
  color: var(--white);
}

/* --- Hero --- */
.hero-section {
  min-height: 100vh;
  padding: 8rem 0 5rem;
  background: linear-gradient(
    135deg,
    var(--bg-900) 0%,
    var(--bg-800) 60%,
    rgba(59, 130, 246, 0.05) 100%
  );
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-headline {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--white);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-200);
  max-width: 540px;
  line-height: 1.75;
}

.btn-accent {
  background-color: var(--primary);
  color: var(--white);
  border: none;
  font-weight: 600;
  border-radius: 4px;
  transition:
    background-color var(--transition),
    transform var(--transition);
}

.btn-accent:hover {
  background-color: var(--primary-dim);
  color: var(--white);
  transform: translateY(-1px);
}

/* Headshot */
.headshot-wrapper {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 3px solid var(--primary);
  padding: 5px;
  background: var(--bg-800);
  box-shadow: 0 0 40px rgba(59, 130, 246, 0.2);
}

.headshot-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

@media (max-width: 991px) {
  .headshot-wrapper {
    width: 200px;
    height: 200px;
  }
}

/* --- Section Shared --- */
.section-wrapper {
  padding: 6rem 0;
}

.section-dark {
  background-color: var(--bg-800);
}

.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.section-sub {
  color: var(--text-200);
  font-size: 1rem;
  max-width: 560px;
}

/* --- Project Cards --- */
.project-card {
  background-color: var(--bg-700);
  border: 1px solid var(--bg-600);
  border-radius: 10px;
  padding: 1.75rem;
  transition:
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.project-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
}

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.badge-tech {
  background-color: rgba(59, 130, 246, 0.12);
  color: var(--primary);
  border: 1px solid rgba(59, 130, 246, 0.3);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3em 0.65em;
  border-radius: 4px;
  margin-right: 0.25rem;
  margin-bottom: 0.25rem;
  display: inline-block;
}

.project-impact {
  color: var(--text-200);
  font-size: 0.92rem;
  line-height: 1.7;
}

.btn-accent-outline {
  border: 1.5px solid var(--primary);
  color: var(--primary);
  background: transparent;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  transition:
    background-color var(--transition),
    color var(--transition);
}

.btn-accent-outline:hover {
  background-color: var(--primary);
  color: var(--white);
}

/* --- Footer --- */
.footer-section {
  background-color: var(--bg-900);
  border-top: 1px solid var(--bg-600);
  padding: 4rem 0 2.5rem;
}

.footer-cta {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 0.4rem;
}

.footer-sub {
  color: var(--text-200);
  font-size: 0.95rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-200);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--bg-600);
  border-radius: 6px;
  transition:
    color var(--transition),
    border-color var(--transition),
    background-color var(--transition);
}

.social-link:hover {
  color: var(--white);
  border-color: var(--primary);
  background-color: rgba(59, 130, 246, 0.1);
}

.footer-divider {
  border-color: var(--bg-600);
  margin: 2rem 0 1.5rem;
}

.footer-copy {
  color: var(--text-400);
  font-size: 0.82rem;
}

/* --- Case Study Page --- */
.cs-hero {
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg, var(--bg-900), var(--bg-800));
  border-bottom: 1px solid var(--bg-600);
}

.cs-section {
  padding: 4rem 0;
}

.cs-section + .cs-section {
  border-top: 1px solid var(--bg-600);
}

.cs-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.cs-heading {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
}

.cs-body {
  color: var(--text-200);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 720px;
}

/* --- Navbar brand responsive --- */
.navbar-brand {
  font-size: 1rem;
  letter-spacing: 0.02em;
}

/* --- Code Window --- */
.code-window {
  background-color: var(--bg-800);
  border: 1px solid var(--bg-600);
  border-radius: 10px;
  overflow: hidden;
  box-shadow:
    0 16px 48px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(59, 130, 246, 0.1);
  font-size: 0.88rem;
}

.code-window-bar {
  background-color: var(--bg-700);
  border-bottom: 1px solid var(--bg-600);
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.code-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red {
  background-color: #ff5f57;
}
.dot-yellow {
  background-color: #febc2e;
}
.dot-green {
  background-color: #28c840;
}

.code-window-title {
  margin-left: 0.6rem;
  font-size: 0.78rem;
  color: var(--text-400);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.code-body {
  padding: 1.5rem 1.75rem;
  overflow-x: auto;
}

.code-body pre {
  margin: 0;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--text-200);
  white-space: pre;
}

.code-body code {
  background: none;
  padding: 0;
}

/* Syntax tokens */
.c-keyword {
  color: #7dd3fc;
} /* light blue — const, true */
.c-var {
  color: #e2e8f0;
} /* near-white — developer */
.c-fn {
  color: #93c5fd;
} /* blue — ship */
.c-key {
  color: #bfdbfe;
} /* pale blue — object keys */
.c-str {
  color: #86efac;
} /* green — strings */
.c-comment {
  color: var(--text-400);
  font-style: italic;
} /* muted */
.c-op {
  color: #94a3b8;
} /* slate — = */
.c-punct {
  color: #94a3b8;
} /* slate — { } [ ] , ; . */

/* Blinking cursor */
.c-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background-color: var(--primary);
  vertical-align: text-bottom;
  margin-left: 1px;
  animation: blink 1.1s step-start infinite;
}

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

/* --- Utility --- */
@media (max-width: 575px) {
  .section-wrapper {
    padding: 4rem 0;
  }
  .hero-section {
    padding: 7rem 0 4rem;
  }
}