/* ==========================================================================
   SS HackVerse — custom styles (Tailwind CDN handles utility classes;
   this file covers tokens, the hero diagnostic diagram, and anything
   Tailwind's utilities can't express cleanly).
   ========================================================================== */

:root {
  --void: #0a0e14;
  --fog: #121a24;
  --fog-light: #1a2532;
  --line: #24303f;
  --signal: #00e5a0;
  --signal-dim: #00e5a033;
  --pulse: #7c5cff;
  --pulse-dim: #7c5cff33;
  --alert: #ff5d5d;
  --chalk: #e8ecf1;
  --mist: #8b96a5;
}

* {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  background-color: var(--void);
  color: var(--chalk);
  font-family: "Inter", system-ui, sans-serif;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--void);
}
::-webkit-scrollbar-thumb {
  background: var(--fog-light);
  border-radius: 6px;
  border: 2px solid var(--void);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--signal);
}

/* Faint circuit-grid backdrop used behind the hero + a couple sections */
.grid-overlay {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  background-position: center top;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
  opacity: 0.5;
}

/* ---------- Nav ---------- */
#navbar {
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
}
#navbar.nav-scrolled {
  background-color: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-link {
  position: relative;
  color: var(--mist);
  transition: color 0.2s ease;
}
.nav-link:hover,
.nav-link:focus-visible {
  color: var(--chalk);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 1px;
  background: var(--signal);
  transition: width 0.25s ease;
}
.nav-link:hover::after,
.nav-link:focus-visible::after {
  width: 100%;
}

#mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
#mobile-menu.open {
  max-height: 28rem;
}

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--signal);
  color: #04140f;
  font-weight: 600;
  padding: 0.85rem 1.6rem;
  border-radius: 0.5rem;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background-color 0.2s ease;
  box-shadow: 0 0 0 0 var(--signal-dim);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -6px var(--signal-dim);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--chalk);
  font-weight: 600;
  padding: 0.85rem 1.6rem;
  border-radius: 0.5rem;
  border: 1px solid var(--line);
  transition: border-color 0.2s ease, transform 0.15s ease, background-color 0.2s ease;
}
.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--signal);
  transform: translateY(-2px);
  background: rgba(0, 229, 160, 0.06);
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- Terminal chrome (hero) ---------- */
.terminal-window {
  background: var(--fog);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.6);
}
.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  background: var(--fog-light);
  border-bottom: 1px solid var(--line);
}
.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-body {
  padding: 1.25rem 1.5rem 1.5rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  line-height: 1.7;
  min-height: 190px;
}
.term-line {
  color: var(--mist);
}
.term-prompt {
  color: var(--signal);
}
.term-ok {
  color: var(--signal);
}
.typewriter-cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  background: var(--signal);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* ---------- Hero diagnostic diagram (signature element) ---------- */
.diagram-wrap {
  filter: drop-shadow(0 0 30px rgba(0, 229, 160, 0.08));
}
.diagram-line {
  stroke: var(--line);
  stroke-width: 1.5;
  fill: none;
}
.diagram-pulse {
  stroke: var(--signal);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 8 220;
  stroke-dashoffset: 0;
  animation: travel 3.6s linear infinite;
  opacity: 0.9;
}
.diagram-pulse.pulse-2 { stroke: var(--pulse); animation-delay: 0.6s; }
.diagram-pulse.pulse-3 { stroke: var(--signal); animation-delay: 1.2s; }
.diagram-pulse.pulse-4 { stroke: var(--pulse); animation-delay: 1.8s; }
.diagram-pulse.pulse-5 { stroke: var(--signal); animation-delay: 2.4s; }
@keyframes travel {
  0% { stroke-dashoffset: 220; }
  100% { stroke-dashoffset: -220; }
}
.diagram-node {
  fill: var(--fog-light);
  stroke: var(--line);
  stroke-width: 1.5;
}
.diagram-node--center {
  fill: var(--fog-light);
  stroke: var(--signal);
  stroke-width: 2;
}
.diagram-ring {
  fill: none;
  stroke: var(--signal);
  stroke-width: 1;
  opacity: 0;
  transform-origin: center;
  animation: ping-ring 3.6s ease-out infinite;
}
@keyframes ping-ring {
  0% { opacity: 0.6; transform: scale(0.6); }
  70% { opacity: 0; transform: scale(2.2); }
  100% { opacity: 0; transform: scale(2.2); }
}
.diagram-label {
  fill: var(--mist);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Section eyebrow ---------- */
.eyebrow {
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.08em;
  color: var(--signal);
}

/* ---------- Test-log / service cards ---------- */
.test-card {
  background: var(--fog);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  padding: 1.75rem;
  transition: border-color 0.25s ease, transform 0.25s ease, background-color 0.25s ease;
}
.test-card:hover {
  border-color: var(--signal);
  transform: translateY(-4px);
  background: var(--fog-light);
}
.test-card__tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--signal);
  background: rgba(0, 229, 160, 0.08);
  border: 1px solid var(--signal-dim);
  padding: 0.2rem 0.55rem;
  border-radius: 0.3rem;
}
.test-card__icon {
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.6rem;
  background: var(--fog-light);
  border: 1px solid var(--line);
  color: var(--signal);
}

/* ---------- Testimonials ---------- */
.testimonial-card {
  background: var(--fog);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  padding: 1.75rem;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.testimonial-card:hover {
  transform: translateY(-3px);
  border-color: var(--pulse);
}
.quote-mark {
  color: var(--pulse);
  font-family: "JetBrains Mono", monospace;
}

/* ---------- Gallery ---------- */
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 0.75rem;
  border: 1px solid var(--line);
  cursor: pointer;
  background: var(--fog);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.gallery-item:hover img {
  transform: scale(1.08);
}
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 14, 20, 0.92) 0%, rgba(10, 14, 20, 0.15) 55%, transparent 100%);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.gallery-item:hover .gallery-overlay,
.gallery-item:focus-within .gallery-overlay {
  opacity: 1;
}

#lightbox {
  position: fixed;
  inset: 0;
  background: rgba(6, 9, 14, 0.92);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 100;
  padding: 1.5rem;
}
#lightbox.active {
  opacity: 1;
  pointer-events: auto;
}
#lightbox img {
  max-width: min(90vw, 1000px);
  max-height: 82vh;
  border-radius: 0.75rem;
  border: 1px solid var(--line);
}

/* ---------- Forms ---------- */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--fog);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.8rem 1rem;
  color: var(--chalk);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: #5c6675;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--signal);
  background: var(--fog-light);
  outline: none;
}
.form-field.has-error .form-input,
.form-field.has-error .form-textarea,
.form-field.has-error .form-select {
  border-color: var(--alert);
}
.field-error {
  display: none;
  color: var(--alert);
  font-size: 0.8rem;
  margin-top: 0.35rem;
  font-family: "JetBrains Mono", monospace;
}
.form-field.has-error .field-error {
  display: block;
}
.form-status {
  display: none;
}
.form-status.show {
  display: flex;
}

/* ---------- Map ---------- */
.map-frame {
  filter: grayscale(0.6) invert(0.92) contrast(0.9);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
}

/* ---------- Misc ---------- */
.text-gradient {
  background: linear-gradient(90deg, var(--signal), var(--pulse));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}