:root {
  --background: #07111f;
  --surface: #0d1b2d;
  --surface-light: #13263e;
  --text: #f3f7fb;
  --muted: #9fb0c5;
  --accent: #4de1c1;
  --accent-soft: rgba(77, 225, 193, 0.12);
  --border: rgba(255, 255, 255, 0.1);
}


/* =========================================================
   Base
   ========================================================= */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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


/* =========================================================
   Header / Hero
   ========================================================= */

.hero {
  min-height: 100vh;
  padding: 0 8%;
  background:
    radial-gradient(
      circle at top right,
      rgba(77, 225, 193, 0.15),
      transparent 35%
    ),
    linear-gradient(135deg, #07111f, #0b1a2c);
}

nav {
  height: 90px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-weight: 800;
  letter-spacing: 0.15rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--accent);
}

.hero-content {
  max-width: 900px;
  padding: 12rem 0 8rem;
}

.eyebrow,
.section-label {
  margin-bottom: 1rem;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.15rem;
  text-transform: uppercase;
}

h1 {
  max-width: 1100px;
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: 1;
}

.hero-text {
  max-width: 700px;
  margin-top: 2rem;
  color: var(--muted);
  font-size: 1.2rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}


/* =========================================================
   Buttons
   ========================================================= */

.button,
.project-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.85rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 800;
  text-decoration: none;
  transition:
    transform 0.2s ease,
    filter 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.button:hover,
.project-link:hover {
  transform: translateY(-2px);
}

.primary,
.project-link {
  background: var(--accent);
  color: var(--background);
  border-color: var(--accent);
}

.secondary {
  background: transparent;
  color: var(--text);
}

.secondary:hover {
  border-color: var(--accent);
}

.coming-soon-link {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}

.coming-soon-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.04);
}


/* =========================================================
   Layout
   ========================================================= */

main {
  padding: 0 8%;
}

section {
  padding: 8rem 0;
  border-bottom: 1px solid var(--border);
}

section h2 {
  max-width: 800px;
  margin-bottom: 1.5rem;
  font-size: clamp(2rem, 4vw, 3.5rem);
}

section > p {
  max-width: 750px;
  color: var(--muted);
  font-size: 1.1rem;
}


/* =========================================================
   Project Cards
   ========================================================= */

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.card {
  min-height: 280px;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
}

.card > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.4rem;
  height: 2.4rem;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.card h3 {
  margin: 1.5rem 0 1rem;
  font-size: 1.5rem;
}

.card p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}


/* =========================================================
   Case Study Pages
   ========================================================= */

.case-study {
  width: min(1120px, calc(100% - 3rem));
  margin: 0 auto;
}

.case-hero {
  padding: 4rem 0 3rem;
}

.case-summary,
.case-hero .case-summary {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.15rem;
}

.case-section {
  padding: 3rem 0;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.85rem;
  font-weight: 700;
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--muted);
}

.back-link:hover {
  color: var(--accent);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.detail-card {
  padding: 1.35rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.detail-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.15rem;
}

.detail-card p,
.detail-card li {
  color: var(--muted);
  line-height: 1.65;
}

.detail-card ul {
  padding-left: 1.2rem;
}

.project-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}


/* =========================================================
   Architecture / Images
   ========================================================= */

.architecture {
  margin-top: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.architecture p {
  margin-bottom: 1rem;
  color: var(--muted);
}

.project-image {
  margin-top: 2rem;
}

.project-image img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

.project-image figcaption {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}


/* =========================================================
   Mermaid Diagram Cards
   ========================================================= */

.mermaid-card {
  width: 100%;
  max-width: 100%;
  margin: 2.5rem auto;
  padding: 1.25rem;
  border: 1px solid rgba(77, 225, 193, 0.25);
  border-radius: 14px;
  background:
    linear-gradient(
      135deg,
      rgba(77, 225, 193, 0.08),
      rgba(120, 160, 255, 0.05)
    ),
    rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.mermaid-card pre,
.mermaid-card .mermaid {
  display: block;
  width: 100%;
  max-width: 100%;
  margin: 0;
  overflow: hidden;
}

.mermaid-card svg {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0 !important;
  height: auto !important;
  overflow: visible;
}

.mermaid-card .node rect,
.mermaid-card .node polygon,
.mermaid-card .node path,
.mermaid-card .node circle {
  fill: rgba(18, 28, 34, 0.95) !important;
  stroke: rgba(77, 225, 193, 0.75) !important;
  stroke-width: 1.5px !important;
}

.mermaid-card .nodeLabel,
.mermaid-card .label,
.mermaid-card text {
  fill: #e8fff7 !important;
  color: #e8fff7 !important;
  font-size: 11px !important;
  font-weight: 700 !important;
}

.mermaid-card .edgePath path {
  stroke: rgba(120, 210, 255, 0.9) !important;
  stroke-width: 1.5px !important;
}

.mermaid-card .edgeLabel {
  background-color: rgba(10, 18, 24, 0.9) !important;
  color: #c9fff1 !important;
  font-size: 9px !important;
  font-weight: 700 !important;
}

.mermaid-card marker path {
  fill: rgba(120, 210, 255, 0.9) !important;
  stroke: rgba(120, 210, 255, 0.9) !important;
}


/* =========================================================
   Platform Architecture Diagram
   ========================================================= */

.architecture-diagram {
  margin: 2.5rem 0 3rem;
  padding: 1.5rem;
  background: rgba(15, 23, 42, 0.48);
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 14px;
}

.arch-plane {
  width: 100%;
}

.arch-plane + .arch-plane {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(148, 163, 184, 0.16);
}

.arch-plane-label {
  margin: 0 0 1.25rem;
  color: #39e6c5;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.arch-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
}

.arch-row-centered {
  flex-wrap: nowrap;
}

.arch-row-centered .arch-node {
  flex: 1 1 180px;
  width: auto;
  max-width: 230px;
  min-height: 118px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.arch-row-split {
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.arch-stack {
  display: flex;
  flex: 1 1 220px;
  flex-direction: column;
  align-items: center;
  max-width: 320px;
}

.arch-node {
  width: 100%;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(148, 163, 184, 0.26);
  border-radius: 10px;
  background: rgba(30, 41, 59, 0.72);
  text-align: center;
}

.arch-node strong {
  display: block;
  margin-bottom: 0.3rem;
  color: #f8fafc;
  font-size: 0.95rem;
  line-height: 1.3;
}

.arch-node span {
  display: block;
  color: #9fc8f8;
  font-size: 0.85rem;
  line-height: 1.45;
}

.arch-node-edge {
  border-color: rgba(148, 163, 184, 0.42);
}

.arch-node-security {
  border-color: rgba(57, 230, 197, 0.55);
}

.arch-node-platform {
  border-color: rgba(96, 165, 250, 0.55);
}

.arch-node-isolated {
  border-style: dashed;
  border-color: rgba(248, 113, 113, 0.58);
}

.arch-arrow {
  flex: 0 0 auto;
  color: #39e6c5;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1;
}

.arch-arrow-down {
  margin: 0.45rem 0;
}

.arch-note {
  max-width: 620px;
  margin: 0.8rem auto 0;
  color: #94a3b8;
  font-size: 0.82rem;
  line-height: 1.5;
  text-align: center;
}


/* =========================================================
   Footer
   ========================================================= */

footer {
  padding: 2rem 8%;
  color: var(--muted);
}


/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 900px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .arch-row-centered {
    flex-wrap: wrap;
  }

  .arch-node {
    padding: 0.9rem 1rem;
  }

  .arch-node strong {
    font-size: 0.9rem;
  }

  .arch-node span {
    font-size: 0.82rem;
  }
}

@media (max-width: 760px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding: 0 5%;
  }

  .hero-content {
    padding-top: 8rem;
  }

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

  main {
    padding: 0 5%;
  }

  .project-grid,
  .two-column {
    grid-template-columns: 1fr;
  }

  .case-study {
    width: min(100%, calc(100% - 2rem));
  }

  .mermaid-card {
    padding: 0.75rem;
  }

  .mermaid-card .nodeLabel,
  .mermaid-card .label,
  .mermaid-card text {
    font-size: 9px !important;
  }

  .mermaid-card .edgeLabel {
    font-size: 8px !important;
  }

  .architecture-diagram {
    margin: 2rem 0 2.5rem;
    padding: 1rem;
  }

  .arch-plane + .arch-plane {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
  }

  .arch-row-centered,
  .arch-row-split {
    flex-direction: column;
    align-items: stretch;
  }

  .arch-row-centered .arch-node {
    width: 100%;
    max-width: none;
    min-height: 0;
  }

  .arch-row-centered .arch-arrow {
    align-self: center;
    transform: rotate(90deg);
  }

  .arch-stack {
    width: 100%;
    max-width: none;
  }

  .arch-node {
    width: 100%;
  }

  .arch-arrow-down {
    align-self: center;
  }

  .arch-note {
    max-width: none;
  }
}

/* GillPad Featured Projects Responsive Layout */

#projects {
  width: 100%;
  max-width: 1500px;
  margin-inline: auto;
}

#projects .project-grid {
  align-items: stretch;
}

#projects .card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

#projects .card > .project-link {
  align-self: flex-start;
  margin-top: auto;
}

#projects .additional-work-card {
  background:
    linear-gradient(
      135deg,
      rgba(77, 225, 193, 0.035),
      rgba(255, 255, 255, 0.02)
    ),
    var(--surface);
}

#projects .additional-work-card > p {
  color: var(--muted);
}

#projects .additional-work-links {
  display: flex;
  flex-direction: column;
  margin-top: auto;
  padding-top: 1rem;
}

#projects .additional-work-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 0.7rem 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.35;
  transition:
    color 0.2s ease,
    padding-left 0.2s ease;
}

#projects .additional-work-links a:hover {
  padding-left: 0.25rem;
  color: var(--accent);
}

#projects .additional-work-links a span:first-child {
  min-width: 0;
}

/*
  Wide screens keep the existing 3-column project grid.
  At <= 1100px, projects use 2 columns.
  At <= 760px, the site's existing mobile rule uses 1 column.
*/

@media (max-width: 1100px) and (min-width: 761px) {
  #projects .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  #projects {
    max-width: none;
  }

  #projects .additional-work-links {
    margin-top: 1rem;
  }

  #projects .additional-work-links a {
    padding: 0.8rem 0;
  }
}