/* ================================================================
   SyncMate for Xero — Coming Soon Page
   Plain CSS, no build step, no framework.
   System font stack, CSS custom properties for tokens.
================================================================ */

/* ----------------------------------------------------------------
   DESIGN TOKENS
---------------------------------------------------------------- */
:root {
  /* Brand */
  --color-accent:        #13B5EA;
  --color-accent-hover:  #0e9fd0;
  --color-accent-light:  rgba(19, 181, 234, 0.12);
  --color-accent-text:   #0a7aa8;

  /* Dark surfaces */
  --color-dark-bg:       #0c1e35;
  --color-dark-bg-2:     #132d4f;
  --color-dark-surface:  rgba(255, 255, 255, 0.06);
  --color-dark-border:   rgba(255, 255, 255, 0.1);

  /* Light surfaces */
  --color-white:         #ffffff;
  --color-off-white:     #f7f9fc;
  --color-border:        #e2e6ed;
  --color-muted:         #6b7a8d;
  --color-body:          #3d4f63;
  --color-heading:       #0f1d2f;

  /* Semantic */
  --color-success:       #059669;
  --color-danger:        #dc2626;

  /* Typography */
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji";

  /* Spacing scale */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border radius */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg:  0 8px 24px rgba(0, 0, 0, 0.10);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast:   150ms;
  --duration-normal: 200ms;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-body);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* ----------------------------------------------------------------
   FOCUS
---------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ----------------------------------------------------------------
   LAYOUT
---------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.container--narrow {
  max-width: 680px;
}

/* ----------------------------------------------------------------
   HEADER
---------------------------------------------------------------- */
.site-header {
  position: relative;
  z-index: 10;
  padding-block: var(--space-5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-white);
  letter-spacing: -0.01em;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0;
}

.badge-coming-soon {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-light);
  border: 1px solid rgba(19, 181, 234, 0.2);
  border-radius: var(--radius-pill);
}

/* ----------------------------------------------------------------
   BUTTONS
---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-3) var(--space-6);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.btn-lg {
  font-size: 1rem;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-md);
}

.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-dark-border);
  padding: var(--space-3) var(--space-6);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.2);
}

/* ----------------------------------------------------------------
   HERO
---------------------------------------------------------------- */
.hero {
  background: linear-gradient(160deg, var(--color-dark-bg) 0%, var(--color-dark-bg-2) 100%);
  padding-block: var(--space-16) var(--space-24);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  padding: var(--space-1) var(--space-4) var(--space-1) var(--space-2);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-light);
  border: 1px solid rgba(19, 181, 234, 0.2);
  border-radius: var(--radius-pill);
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.1875rem);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.65);
  max-width: 540px;
  margin-bottom: var(--space-8);
}

/* Email form */
.email-form {
  display: flex;
  gap: var(--space-3);
  max-width: 460px;
}

.email-form input[type="email"] {
  flex: 1;
  font-family: inherit;
  font-size: 0.9375rem;
  padding: var(--space-3) var(--space-4);
  background: var(--color-dark-surface);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-md);
  color: var(--color-white);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.email-form input[type="email"]::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.email-form input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(19, 181, 234, 0.15);
}

.form-hint {
  margin-top: var(--space-3);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
}

/* Sync visual */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.sync-diagram {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-8) var(--space-10);
  background: var(--color-dark-surface);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-lg);
}

.sync-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.sync-node-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
}

.sync-node-icon--shopify {
  background: #96bf48;
  color: var(--color-white);
}

.sync-node-icon--xero {
  background: var(--color-accent);
  color: var(--color-white);
}

.sync-node-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
}

.sync-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.3);
}

.sync-arrow-line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, #96bf48 0%, var(--color-accent) 100%);
  border-radius: 1px;
  position: relative;
}

.sync-arrow-line::after {
  content: "";
  position: absolute;
  right: -4px;
  top: -3px;
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--color-accent);
  border-right: 2px solid var(--color-accent);
  transform: rotate(45deg);
}

.sync-arrow-label {
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.35);
}

/* ----------------------------------------------------------------
   PROBLEMS SECTION
---------------------------------------------------------------- */
.problems {
  padding-block: var(--space-20);
  background: var(--color-off-white);
}

.section-eyebrow {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent-text);
  margin-bottom: var(--space-4);
}

.section-heading {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-heading);
  margin-bottom: var(--space-4);
}

.section-sub {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-muted);
  max-width: 560px;
  margin-bottom: var(--space-12);
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.problem-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

.problem-card:hover {
  box-shadow: var(--shadow-md);
}

.problem-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  margin-bottom: var(--space-4);
  background: var(--color-accent-light);
  color: var(--color-accent-text);
}

.problem-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.problem-card p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-muted);
}

/* ----------------------------------------------------------------
   FEATURES SECTION
---------------------------------------------------------------- */
.features {
  padding-block: var(--space-20);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.feature-item {
  text-align: center;
  padding: var(--space-6) var(--space-4);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin: 0 auto var(--space-4);
  background: var(--color-accent-light);
  color: var(--color-accent-text);
}

.feature-item h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--space-2);
}

.feature-item p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-muted);
}

/* ----------------------------------------------------------------
   CTA SECTION
---------------------------------------------------------------- */
.cta {
  background: linear-gradient(160deg, var(--color-dark-bg) 0%, var(--color-dark-bg-2) 100%);
  padding-block: var(--space-20);
  text-align: center;
}

.cta h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta-sub {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-8);
  max-width: 480px;
  margin-inline: auto;
}

.cta .email-form {
  margin-inline: auto;
  justify-content: center;
}

.cta .form-hint {
  text-align: center;
}

.cta-timeline {
  margin-top: var(--space-10);
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.02em;
}

/* ----------------------------------------------------------------
   FOOTER
---------------------------------------------------------------- */
.site-footer {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-inner {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.footer-inner a {
  color: var(--color-accent-text);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--duration-fast);
}

.footer-inner a:hover {
  color: var(--color-accent);
}

/* ----------------------------------------------------------------
   RESPONSIVE
---------------------------------------------------------------- */
@media (min-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .hero {
    padding-block: var(--space-8) var(--space-16);
  }

  .hero-visual {
    order: -1;
  }

  .sync-diagram {
    padding: var(--space-6);
    gap: var(--space-4);
  }

  .sync-arrow-line {
    width: 40px;
  }

  .email-form {
    flex-direction: column;
  }

  .email-form .btn {
    width: 100%;
  }

  .problems-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* ----------------------------------------------------------------
   REDUCED MOTION
---------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}