/* =========================================
   GLOBAL / BASE
   ========================================= */

:root {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.5;
}

body {
  margin: 0;
  background: #F2F2F2;
  color: #0f172a;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px;
}

/* =========================================
   CARDS / FOOTER
   ========================================= */

.card {
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 18px;
  margin-top: 16px;
  background: #fff;
}

.footer {
  color: #64748b;
  padding-bottom: 48px;
}

/* =========================================
   HEADER (logo area)
   ========================================= */

.site-header {
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
}

.logo-area {
  display: flex;
  justify-content: center;
  padding: 16px 0;
}

.logo {
  height: 65px; /* 🔧 LOGO SIZE */
  width: auto;
  display: block;
}

/* =========================================
   NAV BAR (blue strip)
   ========================================= */

.nav-bar {
  /*background: #0b84ff;*/
  display: flex;
  padding-left: 0px;
  isolation: isolate; /* keeps z-index predictable */

  /* ✅ Clip the rings so they can't escape the blue bar area */
  overflow: hidden;

  background: linear-gradient(
    to bottom,
    #2ea2ff 0%,
    #0b84ff 55%,
    #0868c9 100%
  );

  /* ✨ subtle shadow underneath */
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.64),
    0 8px 16px rgba(0, 0, 0, 0.32);

  position: relative;
  z-index: 10; /* ensures shadow appears above page content */
}

/* =========================================
   NAV BUTTONS (tabs)
   ========================================= */

.nav-btn {
  position: relative;
  display: inline-flex;
  align-items: center;

  color: white;
  text-decoration: none;
  font-weight: 700;

  padding: 16px 28px;

  /* base */
  /*background: #0b84ff;*/
  /* Base button gradient */
  background: linear-gradient(
    to bottom,
    #2ea2ff 0%,
    #0b84ff 60%,
    #0868c9 100%
  );


  /* ✅ This is the key: big radius makes it feel like a cut from a large circle */
  --tab-radius: 17px;        /* 🔧 try 140px–320px */
  border-top-right-radius: var(--tab-radius);
  border-bottom-right-radius: var(--tab-radius);

  /* seam ring settings */
  --seam-size: 140px;         /* 🔧 circle diameter */
  --seam-thickness: 4px;      /* 🔧 ring thickness */

  /* needed to clip seam ring slice */
  /*overflow: hidden;

  /* ✅ make sure text is above everything */
  z-index: 2;
}

/* Hover: just change background (NO mask, no overlay => never hides text) */
.nav-btn:hover {
  background: #0868c9;
}

/* =========================================
   STATIC OVERLAP BETWEEN TABS
   ========================================= */

.nav-btn {
  margin-left: -18px; /* 🔧 overlap amount */
}

.nav-btn:first-child {
  margin-left: 0;
}

/* =========================================
   LAYERING RULE
   Left tab sits above the one to its right
   ========================================= */

.nav-bar .nav-btn:nth-child(1) { z-index: 4; } /* Home */
.nav-bar .nav-btn:nth-child(2) { z-index: 3; } /* Projects */
.nav-bar .nav-btn:nth-child(3) { z-index: 2; } /* About */
.nav-bar .nav-btn:nth-child(4) { z-index: 1; } /* Contact */

/* =========================================
   SEAM RING (white circle slice)
   ========================================= */

.nav-btn::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translate(-100%, -50%);

  width: var(--seam-size);
  height: var(--seam-size);

  border: var(--seam-thickness) solid rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  pointer-events: none;
  z-index: 6; /* stays on top */
}

.nav-btn::before {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;

  /* 🔧 slight offset to create the “grey side” */
  transform: translate(calc(-100% - 2px), calc(-50% + 0px));

  width: var(--seam-size);
  height: var(--seam-size);

  border: var(--seam-thickness) solid rgba(0,0,0,0.25);
  border-radius: 50%;

  filter: blur(2px);

  pointer-events: none;
  z-index: 5; /* behind the white ring */
}

/* =========================================
   HOME PAGE LAYOUT HELPERS
   ========================================= */

.hero {
  border-radius: 18px;
}

.hero-kicker {
  margin: 0 0 8px 0;
  font-weight: 700;
  color: #0b84ff;
  letter-spacing: 0.5px;
}

.hero-title {
  margin: 0;
  font-size: 2rem;
  line-height: 1.15;
}

.hero-subtitle {
  margin-top: 10px;
  max-width: 65ch;
  color: #334155;
}

.hero-actions {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
}

.btn.primary {
  background: #0b84ff;
  color: white;
}

.btn.primary:hover {
  background: #0868c9;
}

.btn.ghost {
  background: white;
  border: 1px solid #cbd5e1;
  color: #0f172a;
}

.btn.ghost:hover {
  background: #f8fafc;
}

.hero-tags {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  border: 1px solid #e2e8f0;
  background: #f8fafc;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.9rem;
  color: #334155;
}

.muted {
  color: #475569;
}

.grid-2 {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 12px;
}

@media (max-width: 720px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.mini-card {
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 14px;
  background: #ffffff;
}

.projects {
  display: grid;
  gap: 14px;
  margin-top: 12px;
}

.project-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 14px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}

@media (max-width: 720px) {
  .project-card {
    grid-template-columns: 1fr;
  }
}

.project-thumb {
  background: #f1f5f9;
  min-height: 120px;
}

/* Later you can replace .project-thumb with real images */
.project-body {
  padding: 14px;
}

.project-meta {
  margin: 10px 0 0 0;
  padding-left: 18px;
  color: #475569;
}

.link {
  display: inline-block;
  margin-top: 10px;
  color: #0b84ff;
  text-decoration: none;
  font-weight: 700;
}

.link:hover {
  text-decoration: underline;
}

.bullets {
  margin: 8px 0 0 0;
  padding-left: 18px;
  color: #334155;
}

.cta {
  border: 1px solid #0b84ff33;
}

/* =========================================
   PROJECTS PAGE - LAYOUT
   ========================================= */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 14px;
}

/* Responsive: 2 columns, then 1 column */
@media (max-width: 900px) {
  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 620px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* Each highlighted project becomes its own “card” */
.project-tile {
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #ffffff;
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
  display: flex;
  flex-direction: column;
}

/* Fake thumbnail area (replace later with image) */
.project-thumb {
  height: 140px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.20), rgba(0,0,0,0.08));
}

/* Inner padding */
.project-body {
  padding: 16px;
}

.project-title {
  margin: 0 0 6px 0;
}

.project-meta {
  margin: 12px 0 0 0;
  padding-left: 18px;
}

/* Tags row inside tiles */
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

/* Link row inside tiles */
.project-links {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.dot {
  opacity: 0.6;
}

/* =========================================
   SEARCH / FILTERS (visual only)
   ========================================= */

.project-controls {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #fff;
  font: inherit;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/*
.chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #fff;
  font-weight: 600;
  cursor: default;
}
  */

.chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #fff;
  font-weight: 600;
  cursor: pointer;

  font: inherit;
  color: inherit;
}

.chip:hover {
  background: #f8fafc;
}

.chip.is-active {
  border-color: #0b84ff;
  box-shadow: 0 0 0 3px rgba(11, 132, 255, 0.15);
}

/* =========================================
   ARCHIVE - make each item its own mini-card
   ========================================= */

.archive {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.archive-item {
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #ffffff;
  padding: 14px 16px;
}

.archive-item h3 {
  margin: 0 0 6px 0;
}

/* =========================================
   Accessibility helper (used by your label)
   ========================================= */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* =========================================
   PROJECT IMAGE CAROUSEL
   ========================================= */

.project-thumb.carousel {
  position: relative;
  height: 180px;
  overflow: hidden;
  background: #e5e7eb;
}

/* Image track */
.carousel-track {
  width: 100%;
  height: 100%;
  position: relative;
}

/* Images */
.carousel-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.carousel-img.is-active {
  opacity: 1;
}

/* Navigation buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;

  background: rgba(15, 23, 42, 0.6);
  color: white;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  font-size: 20px;
  cursor: pointer;

  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-btn.prev {
  left: 8px;
}

.carousel-btn.next {
  right: 8px;
}

.carousel-btn:hover {
  background: rgba(15, 23, 42, 0.85);
}