/* ===========================
   Spec Site — Shared Styles
   Uses --spec-* custom properties
   to avoid collision with main site
   =========================== */

/* --- Custom Property Defaults --- */
:root {
  --spec-bg: #ffffff;
  --spec-bg-alt: #f5f7fa;
  --spec-bg-dark: #1a1d27;
  --spec-text: #1a1d27;
  --spec-text-muted: #5a5f72;
  --spec-accent: #3b82f6;
  --spec-accent-hover: #2563eb;
  --spec-border: #e2e5ea;
  --spec-radius: 8px;
  --spec-shadow: rgba(0, 0, 0, 0.08);
}

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

html {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--spec-bg);
  color: var(--spec-text);
  line-height: 1.6;
  font-size: 1rem;
  min-height: 100vh;
}

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

a {
  color: var(--spec-accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--spec-accent-hover);
}

ul {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--spec-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.15rem, 3vw, 1.5rem); }
h4 { font-size: 1.1rem; }

/* --- Layout --- */
.spec-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.spec-section {
  padding: 5rem 0;
}

.spec-section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.spec-section__header p {
  color: var(--spec-text-muted);
  margin-top: 0.75rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.spec-section__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--spec-accent);
  margin-bottom: 0.5rem;
}

/* --- Demo Banner --- */
.demo-banner {
  background: #1a1d27;
  color: #f0f0f0;
  font-size: 0.85rem;
  padding: 0.5rem 0;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 200;
}

.demo-banner__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 0 1rem;
}

.demo-banner a {
  color: #60a5fa;
  font-weight: 600;
}

.demo-banner a:hover {
  color: #93bbfd;
}

/* --- Buttons --- */
.spec-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--spec-radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  font-family: inherit;
}

.spec-btn--primary {
  background: var(--spec-accent);
  color: #fff;
  border-color: var(--spec-accent);
}

.spec-btn--primary:hover {
  background: var(--spec-accent-hover);
  border-color: var(--spec-accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--spec-shadow);
}

.spec-btn--outline {
  background: transparent;
  color: var(--spec-text);
  border-color: var(--spec-border);
}

.spec-btn--outline:hover {
  border-color: var(--spec-accent);
  color: var(--spec-accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--spec-shadow);
}

.spec-btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
}

.spec-btn--lg {
  padding: 1rem 2.25rem;
  font-size: 1.05rem;
}

/* --- Navigation --- */
.spec-header {
  position: sticky;
  top: 32px; /* below demo banner */
  z-index: 100;
  background: var(--spec-bg);
  border-bottom: 1px solid var(--spec-border);
}

.spec-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.spec-nav__logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--spec-text);
}

.spec-nav__logo:hover {
  color: var(--spec-text);
}

.spec-nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.spec-nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--spec-text);
  transition: all 0.3s;
}

.spec-nav__menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.spec-nav__links {
  display: flex;
  gap: 1.5rem;
}

.spec-nav__links a {
  color: var(--spec-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.spec-nav__links a:hover {
  color: var(--spec-text);
}

@media (max-width: 768px) {
  .spec-nav__toggle {
    display: flex;
  }

  .spec-nav__menu {
    display: none;
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    background: var(--spec-bg-alt);
    border-bottom: 1px solid var(--spec-border);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.5rem;
  }

  .spec-nav__menu.is-open {
    display: flex;
  }

  .spec-nav__links {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }

  .spec-nav__links a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--spec-border);
  }
}

/* --- Hero --- */
.spec-hero {
  padding: 5rem 0 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.spec-hero h1 {
  max-width: 800px;
  margin: 0 auto 1.25rem;
}

.spec-hero p {
  color: var(--spec-text-muted);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.spec-hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Hero background illustration */
.spec-hero__illustration {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 400px;
  opacity: 0.07;
  pointer-events: none;
  z-index: 0;
}

.spec-hero > .spec-container {
  position: relative;
  z-index: 1;
}

/* --- Card Grid --- */
.spec-card-grid {
  display: grid;
  gap: 1.5rem;
}

.spec-card-grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.spec-card {
  background: var(--spec-bg-alt);
  border: 1px solid var(--spec-border);
  border-radius: var(--spec-radius);
  padding: 2rem;
  transition: border-color 0.2s, transform 0.2s;
}

.spec-card:hover {
  border-color: var(--spec-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--spec-shadow);
}

.spec-card__icon {
  width: 48px;
  height: 48px;
  background: color-mix(in srgb, var(--spec-accent) 12%, transparent);
  color: var(--spec-accent);
  border-radius: var(--spec-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
}

.spec-card__icon svg {
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
}

.spec-card:hover .spec-card__icon svg {
  animation: spec-icon-pulse 0.4s ease;
}

.spec-contact-info__icon svg {
  width: 22px;
  height: 22px;
}

.spec-card h3 {
  margin-bottom: 0.75rem;
}

.spec-card p {
  color: var(--spec-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Trust Bar --- */
.spec-trust {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  padding: 2rem 0;
}

.spec-trust__item {
  text-align: center;
}

.spec-trust__item strong {
  display: block;
  font-size: 1.5rem;
  color: var(--spec-accent);
}

.spec-trust__item span {
  font-size: 0.85rem;
  color: var(--spec-text-muted);
}

/* --- Page Header --- */
.spec-page-header {
  padding: 4rem 0 3rem;
  text-align: center;
  border-bottom: 1px solid var(--spec-border);
}

.spec-page-header p {
  color: var(--spec-text-muted);
  max-width: 600px;
  margin: 0.75rem auto 0;
  font-size: 1.1rem;
}

/* --- Contact Form --- */
.spec-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

@media (max-width: 768px) {
  .spec-contact-grid {
    grid-template-columns: 1fr;
  }
}

.spec-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.spec-form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.spec-form__group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--spec-text);
}

.spec-form__group input,
.spec-form__group textarea,
.spec-form__group select {
  padding: 0.75rem 1rem;
  border-radius: var(--spec-radius);
  border: 1px solid var(--spec-border);
  background: var(--spec-bg);
  color: var(--spec-text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.spec-form__group input:focus,
.spec-form__group textarea:focus,
.spec-form__group select:focus {
  outline: none;
  border-color: var(--spec-accent);
}

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

.spec-contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.spec-contact-info__item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.spec-contact-info__icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: color-mix(in srgb, var(--spec-accent) 12%, transparent);
  color: var(--spec-accent);
  border-radius: var(--spec-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.spec-contact-info__text h4 {
  margin-bottom: 0.25rem;
}

.spec-contact-info__text p {
  color: var(--spec-text-muted);
  font-size: 0.9rem;
}

/* --- CTA Banner --- */
.spec-cta {
  background: var(--spec-bg-alt);
  border-top: 1px solid var(--spec-border);
  border-bottom: 1px solid var(--spec-border);
  padding: 5rem 0;
  text-align: center;
}

.spec-cta h2 {
  margin-bottom: 1rem;
}

.spec-cta p {
  color: var(--spec-text-muted);
  max-width: 550px;
  margin: 0 auto 2rem;
}

/* --- Footer --- */
.spec-footer {
  background: var(--spec-bg-alt);
  border-top: 1px solid var(--spec-border);
  padding: 3rem 0 1.5rem;
}

.spec-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 768px) {
  .spec-footer__grid {
    grid-template-columns: 1fr;
  }
}

.spec-footer__brand p {
  color: var(--spec-text-muted);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.spec-footer__contact h4,
.spec-footer__nav h4 {
  margin-bottom: 0.75rem;
}

.spec-footer__contact li,
.spec-footer__nav li {
  color: var(--spec-text-muted);
  font-size: 0.9rem;
  padding: 0.25rem 0;
}

.spec-footer__nav a {
  color: var(--spec-text-muted);
  font-size: 0.9rem;
}

.spec-footer__nav a:hover {
  color: var(--spec-text);
}

.spec-footer__bottom {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--spec-border);
  text-align: center;
}

.spec-footer__bottom p {
  color: var(--spec-text-muted);
  font-size: 0.85rem;
}

.spec-footer__credit {
  margin-top: 0.25rem;
}

.spec-footer__credit a {
  color: var(--spec-accent);
  font-weight: 600;
}

/* --- Keyframes --- */
@keyframes spec-fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spec-icon-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* --- Hero Entrance Animation --- */
.spec-hero > .spec-container > * {
  animation: spec-fade-in-up 0.5s ease both;
}

.spec-hero > .spec-container > *:nth-child(1) { animation-delay: 0.05s; }
.spec-hero > .spec-container > *:nth-child(2) { animation-delay: 0.15s; }
.spec-hero > .spec-container > *:nth-child(3) { animation-delay: 0.26s; }
.spec-hero > .spec-container > *:nth-child(4) { animation-delay: 0.36s; }
.spec-hero > .spec-container > *:nth-child(5) { animation-delay: 0.46s; }

/* --- Scroll-Driven Reveal (CSS only) --- */
.spec-card,
.spec-trust__item {
  animation: spec-fade-in-up 0.5s ease both;
  animation-timeline: view();
  animation-range: entry 0% entry 30%;
}

/* --- CTA gradient shift base --- */
@keyframes spec-cta-gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}