/* ============================================================
   CrossCode — styles.css
   Color palette:
     --navy:   #0A1628  (background)
     --blue:   #1E3A5F  (surface / cards)
     --gold:   #C9A84C  (accent)
     --white:  #FFFFFF
     --muted:  #8A9BB5  (secondary text)
   ============================================================ */

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

:root {
  --navy:      #0A1628;
  --navy-mid:  #0D1E36;
  --blue:      #1E3A5F;
  --blue-light:#2A5080;
  --gold:      #C9A84C;
  --gold-dim:  rgba(201,168,76,0.15);
  --gold-glow: rgba(201,168,76,0.3);
  --white:     #FFFFFF;
  --muted:     #8A9BB5;
  --muted-dim: #4A6080;
  --border:    rgba(255,255,255,0.07);
  --card-bg:   rgba(30,58,95,0.45);

  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --transition: 0.25s ease;
  --shadow-card: 0 4px 32px rgba(0,0,0,0.3);
  --shadow-gold:  0 0 24px rgba(201,168,76,0.2);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--navy);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

img, svg { display: block; max-width: 100%; }

button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ── Utility ──────────────────────────────────────────────── */
.container {
  width: min(1160px, 100% - 2.5rem);
  margin-inline: auto;
}

.mono-accent {
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: 0.85em;
  letter-spacing: 0.03em;
}

.desktop-only { display: none; }
@media (min-width: 768px) { .desktop-only { display: inline; } }

/* ── Animations ───────────────────────────────────────────── */
[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
[data-animate="fade-right"] { transform: translateX(-28px); }
[data-animate="fade-left"]  { transform: translateX(28px);  }

[data-animate].is-visible {
  opacity: 1;
  transform: translate(0);
}

/* ── Section shared ───────────────────────────────────────── */
.section {
  padding-block: clamp(5rem, 10vw, 8rem);
}

.section-label {
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-title.centered { text-align: center; }

.section-sub {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 52ch;
  margin-bottom: 3.5rem;
}
.section-sub.centered { margin-inline: auto; text-align: center; }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-block: 1rem;
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(10,22,40,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.nav-logo-svg { width: 32px; height: auto; }

.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;
}

.nav-logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.logo-cross    { color: var(--white); }
.logo-code     { color: var(--gold);  }
.logo-bracket  { color: var(--gold); font-family: 'JetBrains Mono', monospace; font-weight: 400; letter-spacing: -0.05em; }

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover { color: var(--white); background: var(--border); }

.nav-link.nav-cta {
  color: var(--navy);
  background: var(--gold);
  padding: 0.45rem 1.1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}
.nav-link.nav-cta:hover { background: #e0be66; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

@media (max-width: 700px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10,22,40,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.5rem;
    transform: translateY(-110%);
    transition: transform 0.35s ease;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open { transform: translateY(0); }
  .nav-link { width: 100%; text-align: center; padding: 0.75rem; }

  /* Hamburger → X */
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-block: 7rem 4rem;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 40%, rgba(30,58,95,0.35) 0%, transparent 70%),
              linear-gradient(to bottom, transparent 60%, var(--navy) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

/* Hero logo SVG */
.hero-logo { margin-bottom: 0.5rem; }
.hero-logo-svg {
  width: clamp(80px, 14vw, 130px);
  height: auto;
  filter: drop-shadow(0 0 32px rgba(201,168,76,0.35));
  animation: float 5s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

.hero-title {
  font-size: clamp(3rem, 9vw, 6.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
}

.hero-tagline {
  font-size: clamp(1rem, 2.2vw, 1.3rem);
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 0.01em;
}

.hero-sub {
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  color: var(--muted);
  max-width: 50ch;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.5rem;
}

.hero-scroll-hint {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.5;
  font-size: 0.8rem;
  animation: pulse-hint 2.5s ease-in-out infinite;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(45deg);
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50%       { transform: rotate(45deg) translateY(4px); }
}

@keyframes pulse-hint {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 0.7; }
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gold);
  color: var(--navy);
}
.btn-primary:hover {
  background: #e0be66;
  box-shadow: 0 0 24px var(--gold-glow);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.25);
}
.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-1px);
}

.btn-full { width: 100%; }

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--navy-mid); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
  align-items: center;
  margin-top: 2rem;
}

@media (min-width: 900px) {
  .about-grid { grid-template-columns: 1fr 1fr; gap: 5rem; }
}

.about-lead {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 1rem;
  line-height: 1.65;
}

.about-body {
  color: var(--muted);
  margin-bottom: 0.85rem;
  line-height: 1.75;
}

.about-values {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.75rem;
}

.value-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--gold-dim);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  background: var(--gold-dim);
  backdrop-filter: blur(4px);
}
.value-icon {
  font-size: 0.8rem;
}

/* Code card */
.code-card {
  background: #0D1E36;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition);
}
.code-card:hover {
  box-shadow: var(--shadow-card), var(--shadow-gold);
  transform: translateY(-4px);
}

.code-card-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.dot-red    { background: #FF5F57; }
.dot-yellow { background: #FFBD2E; }
.dot-green  { background: #28CA41; }

.code-card-title {
  margin-left: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}

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

.code-card-body code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.85;
  white-space: pre;
}

/* Syntax colors */
.code-comment  { color: #4A6080; }
.code-keyword  { color: #c792ea; }
.code-var      { color: #82aaff; }
.code-prop     { color: #7fdbca; }
.code-string   { color: #C9A84C; }

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  background: var(--navy);
  position: relative;
}
.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 600px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 900px) {
  .services-grid { grid-template-columns: repeat(5, 1fr); }
}

.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  backdrop-filter: blur(8px);
}
.service-card:hover {
  border-color: rgba(201,168,76,0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), 0 0 20px rgba(201,168,76,0.08);
}

.service-icon-wrap { width: 48px; height: 48px; }
.service-icon { width: 48px; height: 48px; }

.service-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
}

.service-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.7;
  flex: 1;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.service-tags li {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  background: var(--gold-dim);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: 4px;
  color: var(--gold);
}

/* ============================================================
   PROCESS
   ============================================================ */
.process {
  background: var(--navy-mid);
  position: relative;
}

.process-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-top: 1rem;
  position: relative;
}

@media (min-width: 800px) {
  .process-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
}

.step-number {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gold);
  opacity: 0.7;
}

.step-connector {
  display: none;
  position: absolute;
  top: 20px;
  right: -1rem;
  width: 2rem;
  height: 2px;
  background: linear-gradient(to right, var(--gold-dim), transparent);
}

@media (min-width: 800px) {
  .process-step:not(:last-child) .step-connector { display: block; }
}

.step-icon-wrap {
  width: 56px;
  height: 56px;
}
.step-icon-wrap svg { width: 56px; height: 56px; }

.step-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
}

.step-desc {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.step-list li {
  font-size: 0.85rem;
  color: var(--muted);
  padding-left: 1rem;
  position: relative;
}
.step-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 0.8rem;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  background: var(--navy);
  position: relative;
}
.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
  align-items: start;
}

@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 1.2fr 0.8fr; gap: 5rem; }
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.form-input {
  background: rgba(30,58,95,0.4);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  width: 100%;
  outline: none;
  -webkit-appearance: none;
}

.form-input::placeholder { color: var(--muted-dim); }

.form-input:focus {
  border-color: var(--gold);
  background: rgba(30,58,95,0.6);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

.form-input.has-error { border-color: #e05c5c; }

.form-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238A9BB5' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-select option {
  background: var(--navy);
  color: var(--white);
}

.form-textarea { resize: vertical; min-height: 120px; }

.form-error {
  font-size: 0.78rem;
  color: #e05c5c;
  min-height: 1em;
}

.form-success {
  display: none;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: var(--radius-sm);
  color: var(--gold);
  font-weight: 500;
  font-size: 0.9rem;
}
.form-success.show { display: flex; }

/* Button states */
.btn-sending { display: none; }
.btn.is-sending .btn-text    { display: none; }
.btn.is-sending .btn-sending { display: inline; }

/* Contact info */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-block-title {
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: 0.04em;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--muted);
  font-size: 0.95rem;
  transition: color var(--transition);
}
.contact-link:hover { color: var(--gold); }

.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--muted);
  font-size: 0.9rem;
  transition: color var(--transition), transform var(--transition);
}
.social-link:hover { color: var(--gold); transform: translateX(4px); }

.contact-meta {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.65;
}
.contact-meta strong { color: var(--white); }

.contact-verse {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.25rem 1.25rem 1.5rem;
}
.contact-verse blockquote {
  font-style: italic;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.7;
}
.contact-verse cite {
  display: block;
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  font-style: normal;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: #060F1E;
  border-top: 1px solid var(--border);
  padding-block: 3.5rem 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 600px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
}

.footer-brand { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-logo  { display: inline-flex; }

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-dim);
  padding-left: 0.25rem;
}

.footer-col-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

.footer-links { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a {
  font-size: 0.88rem;
  color: var(--muted-dim);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--gold); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0.75rem;
}

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

.footer-made {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted-dim);
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--blue-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ============================================================
   SELECTION
   ============================================================ */
::selection {
  background: var(--gold);
  color: var(--navy);
}

/* ============================================================
   FOCUS VISIBLE
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 3px;
}