/* ==========================================================================
   TaxMart Business Solutions — Design System
   Restrained, premium, trustworthy. Light backgrounds, generous whitespace,
   subtle motion only. See spec §6 (Design Direction), §28 (Responsive),
   §31 (Interactions/Animation).
   ========================================================================== */

:root {
  /* Brand palette, derived from the approved logo direction */
  --color-primary: #14495a;      /* deep teal (wordmark "Tax") */
  --color-primary-dark: #0d323e;
  --color-secondary: #5c8a3a;    /* green (wordmark "Mart", checkmark) */
  --color-secondary-dark: #446a2a;
  --color-accent: #d3a537;       /* gold (arc, dividers, "AllGood Company") */
  --color-bg: #fbfaf7;
  --color-surface: #ffffff;
  --color-text: #1c2b2f;
  --color-text-muted: #5a6b6e;
  --color-border: #e3e0d8;
  --color-success: #3a7a4e;
  --color-error: #b23a2e;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --container-max: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 3px rgba(20, 73, 90, 0.08);
  --shadow-md: 0 8px 30px rgba(20, 73, 90, 0.10);
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --transition-fast: 160ms ease;
  --transition-base: 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #0f1a1c;
    --color-surface: #16262a;
    --color-text: #eef2f1;
    --color-text-muted: #a8b6b8;
    --color-border: #253638;
  }
}
:root[data-theme="dark"] {
  --color-bg: #0f1a1c;
  --color-surface: #16262a;
  --color-text: #eef2f1;
  --color-text-muted: #a8b6b8;
  --color-border: #253638;
}

/* ---- Reset & base ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 var(--space-2); font-weight: 700; color: var(--color-primary-dark); }
h1 { font-size: clamp(2.1rem, 1.6rem + 2vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 1.3rem + 1.2vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem); }
p  { margin: 0 0 var(--space-2); max-width: 68ch; color: var(--color-text); }
a  { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -60px;
  background: var(--color-primary); color: #fff;
  padding: 0.75rem 1.25rem; border-radius: var(--radius-sm);
  z-index: 1000; transition: top var(--transition-fast);
}
.skip-link:focus { top: 1rem; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section { padding-block: var(--space-6); }
@media (max-width: 640px) { .section { padding-block: var(--space-4); } }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600; font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  min-height: 48px; /* touch target */
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-secondary { background: var(--color-secondary); color: #fff; }
.btn-secondary:hover { background: var(--color-secondary-dark); transform: translateY(-1px); }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-accent { background: var(--color-accent); color: var(--color-primary-dark); }
.btn-block { width: 100%; }

/* ---- Top bar (address / phone / email) ---- */
.top-bar {
  background: var(--color-primary-dark);
  color: #cfe0da;
  font-size: 0.85rem;
}
.top-bar-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 0.4rem; flex-wrap: wrap;
}
.top-bar-item { color: #cfe0da; opacity: 0.92; }
.top-bar-item:hover { color: #fff; opacity: 1; text-decoration: none; }
.top-bar-contact { display: flex; gap: 1.25rem; }
@media (max-width: 640px) {
  .top-bar-inner > a.top-bar-item:first-child { display: none; } /* address hidden on phones, kept in footer */
  .top-bar-contact { gap: 0.9rem; }
}

/* ---- Floating "Connect With Us" button ---- */
.connect-fab {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 90;
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--color-secondary); color: #fff;
  padding: 0.85rem 1.3rem; border-radius: 999px;
  font-weight: 700; font-size: 0.95rem;
  box-shadow: 0 10px 30px rgba(20,73,90,0.28);
  transition: transform var(--transition-fast), background var(--transition-fast);
}
.connect-fab:hover { background: var(--color-secondary-dark); transform: translateY(-2px); text-decoration: none; color: #fff; }
@media (max-width: 640px) {
  .connect-fab { right: 0.75rem; bottom: 0.75rem; padding: 0.75rem 1.1rem; font-size: 0.88rem; }
}

/* ---- Header / Nav ---- */
.announcement-bar {
  background: var(--color-secondary-dark);
  color: #fff;
  text-align: center;
  font-size: 0.9rem;
  padding: 0.55rem var(--space-2);
}
.announcement-bar a { color: #fff; text-decoration: underline; font-weight: 700; margin-left: 0.5rem; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 0.75rem;
}
.brand img { height: 64px; width: auto; }

.main-nav { display: flex; align-items: center; gap: var(--space-3); }
.main-nav ul { list-style: none; display: flex; gap: var(--space-3); margin: 0; padding: 0; }
.main-nav a { color: var(--color-text); font-weight: 600; font-size: 0.96rem; }
.main-nav a[aria-current="page"] { color: var(--color-primary); }
.main-nav a[aria-current="page"]::after {
  content: ""; display: block; height: 2px; background: var(--color-secondary); margin-top: 3px;
}

.header-actions { display: flex; align-items: center; gap: 0.75rem; }
.mobile-cta { display: none; }
.nav-toggle {
  display: none;
  background: none; border: 2px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem; cursor: pointer; min-height: 48px; min-width: 48px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-primary-dark); margin: 4px 0; transition: transform var(--transition-fast), opacity var(--transition-fast); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 900px) {
  .main-nav { position: fixed; inset: 64px 0 0 0; background: var(--color-surface);
    flex-direction: column; align-items: flex-start; padding: var(--space-3);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
    border-top: 1px solid var(--color-border); overflow-y: auto;
  }
  .main-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .main-nav ul { flex-direction: column; width: 100%; gap: 0; }
  .main-nav li { width: 100%; border-bottom: 1px solid var(--color-border); }
  .main-nav a { display: block; padding: 1rem 0.25rem; }
  .nav-toggle { display: block; }
  .header-actions .btn-primary { display: none; }
  .mobile-cta { display: inline-flex; }
}

/* ---- Hero ---- */
.hero { padding-block: var(--space-6) var(--space-5); overflow: hidden; }
.hero .container { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-5); align-items: center; }
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; gap: var(--space-3); }
  .hero { padding-block: var(--space-4); }
}
.hero-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.hero-media img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: var(--space-3); }
.hero-phone { display: inline-flex; align-items: center; gap: 0.4rem; margin-top: var(--space-2); font-weight: 600; color: var(--color-primary); }

/* ---- Hero banner (crossfading image carousel, left-aligned overlay text) ---- */
.hero-banner {
  position: relative;
  min-height: 560px;
  display: flex; align-items: center;
  overflow: hidden;
  isolation: isolate;
}
.hero-banner-slides { position: absolute; inset: 0; z-index: -2; background: var(--color-primary-dark); }
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0;
  animation: heroSlideFade 18s infinite;
}
.hero-slide:nth-child(1) { animation-delay: 0s; }
.hero-slide:nth-child(2) { animation-delay: 6s; }
.hero-slide:nth-child(3) { animation-delay: 12s; }
@keyframes heroSlideFade {
  0%   { opacity: 0; }
  4%   { opacity: 1; }
  28%  { opacity: 1; }
  34%  { opacity: 0; }
  100% { opacity: 0; }
}
.hero-banner-overlay {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(100deg, rgba(13,50,62,0.92) 0%, rgba(13,50,62,0.78) 32%, rgba(13,50,62,0.35) 62%, rgba(13,50,62,0.15) 100%);
}
.hero-banner-content-left {
  text-align: left; color: #fff;
  padding-block: var(--space-6);
  max-width: 620px;
}
.hero-banner-content-left h1, .hero-banner-content-left p {
  color: #fff; text-align: left; margin-inline: 0; max-width: none;
}
.hero-banner-content-left h1 {
  /* Keep the headline to at most 4 lines: wraps normally at word
     boundaries (word-break stays "normal"), only breaking inside a
     word if that single word is wider than the available space
     (overflow-wrap). If it's still too long after 4 lines, the rest
     is clipped with an ellipsis rather than overflowing the banner. */
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: normal;
  overflow-wrap: break-word;
}
.hero-banner-content-left p { font-size: 1.15rem; opacity: 0.96; max-width: 52ch; }
.hero-banner-content-left .hero-actions { justify-content: flex-start; }
@media (max-width: 640px) {
  .hero-banner { min-height: 480px; }
  .hero-banner-content-left { padding-block: var(--space-5); max-width: 100%; }
}
/* A slideshow that never stops is an accessibility/motion problem for
   some users — freeze on the first image instead of animating. */
@media (prefers-reduced-motion: reduce) {
  .hero-slide { animation: none; opacity: 0; }
  .hero-slide:first-child { opacity: 1; }
}

/* ---- Trust strip ---- */
.trust-strip { background: var(--color-primary); color: #fff; text-align: center; padding-block: var(--space-3); }
.trust-strip p { color: #fff; max-width: 60ch; margin-inline: auto; font-weight: 500; }

/* ---- Cards ---- */
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
@media (max-width: 1000px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .card-grid { grid-template-columns: 1fr; } }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card-icon { font-size: 1.8rem; margin-bottom: 0.5rem; line-height: 1; }
.card h3 { margin-bottom: 0.5rem; }
.card p { margin-bottom: 0.75rem; color: var(--color-text-muted); }

/* ---- Why TaxMart split layout ---- */
.why-taxmart-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--space-4); align-items: center; }
@media (max-width: 900px) { .why-taxmart-grid { grid-template-columns: 1fr; } }
.why-taxmart-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.why-taxmart-media img { aspect-ratio: 3/2; object-fit: cover; width: 100%; }
.check-list { list-style: none; padding: 0; margin: var(--space-2) 0 0; display: grid; gap: 0.75rem; }
.check-list li { position: relative; padding-left: 2rem; color: var(--color-text); }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 1.5rem; height: 1.5rem; border-radius: 50%;
  background: var(--color-secondary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700;
}

.service-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
@media (max-width: 900px) { .service-card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .service-card-grid { grid-template-columns: 1fr; } }

.resource-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
@media (max-width: 760px) { .resource-grid { grid-template-columns: 1fr; } }
.resource-card ul { margin: 0; padding-left: 1.25rem; display: grid; gap: 0.5rem; }
.resource-card li { color: var(--color-text); }

/* ---- Process steps ---- */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); counter-reset: step; }
@media (max-width: 900px) { .process-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .process-grid { grid-template-columns: 1fr; } }
.process-step { position: relative; padding: var(--space-3); background: var(--color-surface); border-radius: var(--radius-md); border: 1px solid var(--color-border); }
.process-step .step-number {
  counter-increment: step; content: counter(step);
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--color-secondary); color: #fff; font-weight: 700; margin-bottom: var(--space-2);
}

/* ---- Section title / reveal-on-scroll ---- */
/* Section headers and their intro paragraph are centered and run the full
   container width by default (per design direction) — card/body copy
   elsewhere keeps its own left-aligned, measured-width styling. */
.section-title {
  max-width: 100%;
  margin-inline: auto;
  margin-bottom: var(--space-4);
  text-align: center;
}
.section-title h1, .section-title h2, .section-title h3 { margin-inline: auto; }
.section-title p { max-width: 100%; margin-inline: auto; text-align: center; }
.section-title .eyebrow {
  display: inline-block; color: var(--color-secondary-dark); font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.8rem; margin-bottom: 0.5rem;
}

[data-reveal] {
  opacity: 0; transform: translateY(22px);
  transition: opacity 680ms cubic-bezier(0.22, 1, 0.36, 1), transform 680ms cubic-bezier(0.22, 1, 0.36, 1);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* Titles get a slightly more pronounced entrance than plain content. */
[data-reveal-title] {
  opacity: 0; transform: translateY(28px) scale(0.98);
  transition: opacity 760ms cubic-bezier(0.22, 1, 0.36, 1), transform 760ms cubic-bezier(0.22, 1, 0.36, 1);
}
[data-reveal-title].is-visible { opacity: 1; transform: translateY(0) scale(1); }
/* A thin accent rule draws in under section titles as part of the reveal. */
.section-title h2::after, .section-title h1::after {
  content: ""; display: block; width: 64px; height: 3px; margin: 0.75rem auto 0;
  background: var(--color-secondary);
  transform: scaleX(0); transform-origin: center;
  transition: transform 700ms cubic-bezier(0.22, 1, 0.36, 1) 200ms;
}
.section-title.is-visible h2::after, .section-title.is-visible h1::after { transform: scaleX(1); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-reveal-title] { opacity: 1; transform: none; transition: none; }
  .section-title h2::after, .section-title h1::after { transform: scaleX(1); transition: none; }
}

/* ---- Closing CTA band ---- */
.cta-band {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff; border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-4); text-align: center;
}
.cta-band h2, .cta-band p { color: #fff; margin-inline: auto; }
.cta-band .hero-actions { justify-content: center; }

/* ---- Forms ---- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2) var(--space-3); }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: var(--space-2); }
.field.full { grid-column: 1 / -1; }
label { font-weight: 600; font-size: 0.92rem; }
input, select, textarea {
  font: inherit; padding: 0.75rem 0.9rem;
  border: 1.5px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--color-surface); color: var(--color-text);
  min-height: 48px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
textarea { min-height: 120px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(20,73,90,0.12); outline: none;
}
.field-note { font-size: 0.85rem; color: var(--color-text-muted); }
.security-note {
  background: #fbf3e0; border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm); padding: var(--space-2) var(--space-3);
  font-size: 0.92rem; margin-bottom: var(--space-3);
}
.form-errors {
  background: #fbeae7; border: 1px solid var(--color-error); color: var(--color-error);
  border-radius: var(--radius-sm); padding: var(--space-2) var(--space-3); margin-bottom: var(--space-3);
}
.form-success {
  background: #eaf4ec; border: 1px solid var(--color-success); color: var(--color-success);
  border-radius: var(--radius-sm); padding: var(--space-2) var(--space-3); margin-bottom: var(--space-3);
}
.checkbox-field { display: flex; align-items: flex-start; gap: 0.6rem; }
.checkbox-field input { min-height: auto; width: 20px; height: 20px; margin-top: 3px; }

/* ---- FAQ accordion ---- */
.faq-category + .faq-category { margin-top: var(--space-4); }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  padding: 1.1rem 0; font-weight: 600; font-size: 1.02rem; color: var(--color-text);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq-question .icon { transition: transform var(--transition-base); flex-shrink: 0; }
.faq-question[aria-expanded="true"] .icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height var(--transition-base);
}
.faq-answer-inner { padding-bottom: 1.1rem; color: var(--color-text-muted); }

/* ---- Footer ---- */
.site-footer { background: var(--color-primary-dark); color: #e7ece9; padding-block: var(--space-5) var(--space-3); }
.site-footer a { color: #e7ece9; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--space-4); }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: var(--space-3); } }
.footer-grid h4 { color: #fff; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15); margin-top: var(--space-4);
  padding-top: var(--space-2); font-size: 0.85rem; color: #b9c6c2;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem;
}

/* ---- Utility ---- */
.text-center { text-align: center; }
.muted { color: var(--color-text-muted); }
.mt-0 { margin-top: 0; }
table.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { text-align: left; padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--color-border); font-size: 0.92rem; }
.badge { display: inline-block; padding: 0.2rem 0.6rem; border-radius: 999px; font-size: 0.78rem; font-weight: 700; }
.badge-new { background: #fbf3e0; color: #8a6a13; }
.badge-published { background: #eaf4ec; color: var(--color-success); }
.badge-draft { background: #eee; color: #666; }