@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  color-scheme: dark;

  --accent: #107c41;
  --accent-hover: #159451;
  --accent-ink: #7ce2a4;
  --accent-soft: rgba(16, 124, 65, 0.12);
  --accent-line: rgba(16, 124, 65, 0.36);
  --accent-shadow: rgba(16, 124, 65, 0.22);

  --bg: #080808;
  --surface: #111111;
  --surface-2: #171717;
  --surface-3: #1d1d1d;
  --border: #252525;
  --border-strong: #343434;

  --text-1: #f4f4f4;
  --text-2: #a9a9a9;
  --text-3: #6c6c6c;
  --text-inverse: #ffffff;

  --danger: #ff6b6b;
  --warning: #e8a13a;
  --success: #39c272;

  --container: 1120px;
  --content: 840px;
  --radius: 8px;
  --radius-sm: 6px;
  --nav-height: 68px;
  --shadow-card: 0 20px 70px rgba(0, 0, 0, 0.32);
  --transition: 160ms ease;

  /* Legacy aliases kept so older inline CSS inherits the same system. */
  --excel-green: var(--accent);
  --excel-green-dark: #0d6334;
  --excel-green-light: var(--accent-soft);
  --bg-dark: var(--bg);
  --bg-card: var(--surface-2);
  --bg-card2: var(--surface);
  --text-white: var(--text-1);
  --text-gray: var(--text-2);
  --text-light: var(--text-1);
  --text-primary: var(--text-1);
  --text-secondary: var(--text-2);
  --bg-secondary: var(--surface);
  --border-subtle: var(--border);
  --border-green: var(--accent-line);
}

/* ── LIGHT THEME – D: Pure White ─────────────────────────── */
[data-theme="light"] {
  color-scheme: light;

  --accent: #0d6b38;
  --accent-hover: #0a5930;
  --accent-ink: #0a5930;
  --accent-soft: rgba(13, 107, 56, 0.08);
  --accent-line: rgba(13, 107, 56, 0.25);
  --accent-shadow: rgba(13, 107, 56, 0.15);

  --bg: #ffffff;
  --surface: #f8f8f8;
  --surface-2: #f2f2f2;
  --surface-3: #eaeaea;
  --border: #e8e8e8;
  --border-strong: #d0d0d0;

  --text-1: #111111;
  --text-2: #555555;
  --text-3: #888888;
  --text-inverse: #ffffff;

  --shadow-card: 0 1px 8px rgba(0, 0, 0, 0.07);

  /* Legacy aliases for pages with older inline CSS */
  --excel-green: var(--accent);
  --bg-dark: #ffffff;
  --bg-card: #f2f2f2;
  --bg-card2: #f8f8f8;
  --text-white: #111111;
  --text-gray: #555555;
  --text-light: #111111;
  --text-primary: #111111;
  --text-secondary: #555555;
  --border-subtle: #e8e8e8;
}

/* Light mode — inverted grid (subtle dark lines on white), mirrors dark grid 1:1 */
[data-theme="light"] body {
  background:
    linear-gradient(180deg, rgba(13, 107, 56, 0.04) 0, transparent 220px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    #ffffff;
  background-size: auto, 80px 22px, 80px 22px, auto;
}

[data-theme="light"] .nav {
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: #e8e8e8;
}

/* Remove dark text-shadow from headings and hero subtitle in light mode */
[data-theme="light"] h1,
[data-theme="light"] .page-title {
  text-shadow: none;
}

[data-theme="light"] .hero-subtitle,
[data-theme="light"] .hero h1 {
  text-shadow: none;
  color: #555555;
}

[data-theme="light"] .hero h1 {
  color: #111111;
}

/* Hero badge: outlined, no filled dark background */
[data-theme="light"] .hero-badge,
[data-theme="light"] .badge,
[data-theme="light"] .plan-badge {
  background: transparent;
  border-color: rgba(13, 107, 56, 0.35);
  color: #0d6b38;
  text-shadow: none;
  box-shadow: none;
}

[data-theme="light"] .pricing-card.featured,
[data-theme="light"] .pricing-option.selected {
  background: linear-gradient(180deg, rgba(13, 107, 56, 0.07), rgba(255, 255, 255, 0.98));
}

/* Subtle green radial on right side of hero (where screenshot sits) */
[data-theme="light"] .hero::before {
  background: radial-gradient(ellipse at 75% 50%, rgba(13, 107, 56, 0.05) 0%, transparent 55%);
}

/* Green buttons — dark border so they stand out on white */
[data-theme="light"] .btn-primary,
[data-theme="light"] .nav-cta,
[data-theme="light"] .btn-upgrade,
[data-theme="light"] .btn-microsoft {
  border-color: #0a5930;
}

/* Secondary / ghost buttons on white bg */
[data-theme="light"] .btn-secondary,
[data-theme="light"] .btn-manage {
  background: transparent;
  color: #222;
  border-color: #d0d0d0;
}

[data-theme="light"] .btn-secondary:hover,
[data-theme="light"] .btn-manage:hover {
  border-color: #0d6b38;
  color: #0d6b38;
  background: transparent;
}

/* Feature-card icons */
[data-theme="light"] .feature-icon {
  border-color: rgba(13, 107, 56, 0.25);
}

/* ────────────────────────────────────────────────────────── */

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
  overflow-y: scroll;       /* always reserve scrollbar width — prevents nav shift */
  scrollbar-gutter: stable; /* modern browsers: same effect, no forced visible scrollbar */
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(16, 124, 65, 0.045) 0, transparent 220px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.040) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.032) 1px, transparent 1px),
    var(--bg);
  background-size: auto, 80px 22px, 80px 22px, auto;
  color: var(--text-1);
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.site-page {
  background-attachment: fixed;
}

a {
  color: var(--accent-ink);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition), border-color var(--transition), background var(--transition), transform var(--transition);
}

a:hover {
  color: var(--text-1);
}

img {
  max-width: 100%;
}

button,
input,
textarea {
  font: inherit;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
.page-title {
  color: var(--text-1);
  font-size: 56px;
  line-height: 1.04;
  letter-spacing: -0.04em;
  font-weight: 800;
  margin-bottom: 16px;
}

h2 {
  color: var(--text-1);
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 750;
  margin: 56px 0 16px;
}

h3 {
  color: var(--text-1);
  font-size: 19px;
  line-height: 1.35;
  letter-spacing: -0.015em;
  font-weight: 700;
  margin-bottom: 10px;
}

p,
li {
  color: var(--text-2);
}

strong {
  color: var(--text-1);
}

#navigation-placeholder {
  /* Spacer so page content doesn't go under the fixed nav */
  height: var(--nav-height);
  z-index: 1000;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  z-index: 1000;
  min-height: var(--nav-height);
  background: rgba(8, 8, 8, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  overflow: visible;
}

.nav-inner,
.nav-container {
  width: min(var(--container), calc(100vw - 48px));
  min-height: var(--nav-height);
  margin: 0 auto;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text-1);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0;
}

.nav-logo img {
  width: 32px;
  height: 32px;
  padding: 3px;
  border: 1px solid var(--accent);
  border-radius: 7px;
  background: rgba(16, 124, 65, 0.08);
}

.nav-logo-text,
.brand-mark {
  color: var(--accent-ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-link {
  color: var(--text-2);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-1);
}

.nav-cta,
.btn-primary,
.btn-secondary,
.btn-ghost,
.btn-upgrade,
.btn-microsoft,
.btn-manage,
.btn-signout {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0;
  cursor: pointer;
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}

.nav-cta,
.btn-primary,
.btn-upgrade,
.btn-microsoft {
  background: var(--accent);
  color: var(--text-inverse);
}

.nav-cta:hover,
.btn-primary:hover,
.btn-upgrade:hover,
.btn-microsoft:hover {
  background: var(--accent-hover);
  color: var(--text-inverse);
  transform: translateY(-2px);
}

.btn-secondary,
.btn-manage {
  background: var(--surface-2);
  color: var(--text-1);
  border-color: var(--border-strong);
}

.btn-secondary:hover,
.btn-manage:hover {
  border-color: var(--accent-line);
  background: var(--surface-3);
}

.btn-ghost,
.btn-signout {
  background: transparent;
  color: var(--text-2);
  border-color: var(--border);
}

.btn-ghost:hover,
.btn-signout:hover {
  color: var(--text-1);
  border-color: var(--border-strong);
  background: var(--surface);
}

button:disabled,
.disabled,
.coming-soon {
  cursor: not-allowed;
  opacity: 0.72;
}

.mobile-menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-1);
  cursor: pointer;
}

.mobile-menu-icon,
.mobile-menu-icon::before,
.mobile-menu-icon::after {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.mobile-menu-icon {
  position: relative;
}

.mobile-menu-icon::before,
.mobile-menu-icon::after {
  content: '';
  position: absolute;
  left: 0;
}

.mobile-menu-icon::before {
  top: -6px;
}

.mobile-menu-icon::after {
  top: 6px;
}

.container,
.content-container,
.account-container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.content-container,
.page-wrapper {
  padding: 72px 0 92px;
}

.account-container {
  max-width: 760px;
}

.page-subtitle,
.subtitle,
.lead {
  max-width: 720px;
  color: var(--text-2);
  font-size: 17px;
  line-height: 1.75;
  margin-bottom: 34px;
}

.page-kicker,
.pricing-plan,
.card-title {
  color: var(--accent-ink);
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 11px;
  font-weight: 800;
}

.card,
.contact-box,
.pricing-card,
.feature-card,
.faq-item,
.info-box,
.account-match-warning,
.disclaimer,
.sub-detail-item,
.pricing-option,
.tip-box {
  background: color-mix(in srgb, var(--surface-2) 92%, var(--accent) 8%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: none;
}

.card,
.contact-box,
.feature-card,
.disclaimer,
.tip-box {
  padding: 28px;
}

.pricing-card {
  padding: 32px 28px 28px;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.pricing-page .pricing-card {
  text-align: left;
  padding: 36px 32px 32px;
}

.pricing-page .pricing-card .pricing-plan {
  font-size: 11px;
  letter-spacing: 0.12em;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: 6px;
  display: block;
}

.pricing-page .pricing-card .pricing-price {
  font-size: 64px;
  letter-spacing: -0.03em;
  line-height: 1;
  font-weight: 900;
  margin-bottom: 0;
  text-align: left;
}

.pricing-page .pricing-card .pricing-price span {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-2);
}

.pricing-page .pricing-card > p {
  text-align: left;
  font-size: 13px;
  color: var(--text-2);
  margin: 10px 0 0;
  line-height: 1.45;
}

.pricing-page .pricing-card .pricing-features {
  margin: 22px 0 28px;
}

.pricing-page .pricing-card .pricing-features li {
  text-align: left;
  font-size: 14px;
  padding: 6px 0;
  align-items: center;
}

.pricing-page .pricing-card .pricing-features li::before {
  margin-top: 0;
}

.pricing-card .pricing-plan {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: 4px;
}

.pricing-card .pricing-price {
  text-align: center;
}

.pricing-card > p {
  text-align: center;
}

.pricing-card .pricing-features {
  flex: 1;
}

.pricing-card > a,
.pricing-card > button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
}

.card:hover,
.pricing-card:hover,
.feature-card:hover,
.pricing-option:hover,
.faq-item:hover {
  border-color: var(--accent-line);
}

.badge,
.plan-badge,
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.section-shell {
  padding: 86px 0;
}

.section-header {
  max-width: 720px;
  margin: 0 auto 38px;
  text-align: center;
}

.grid-2,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.pricing-card.featured,
.pricing-option.selected {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(16, 124, 65, 0.14), rgba(17, 17, 17, 0.98));
}

.pricing-price,
.price {
  color: var(--text-1);
  font-size: 44px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0;
}

.pricing-price span,
.price-unit {
  color: var(--text-2);
  font-size: 15px;
  font-weight: 600;
}

.pricing-features,
.check-list {
  list-style: none;
  padding: 0;
  margin: 24px 0;
}

.pricing-features li,
.check-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 0;
}

.pricing-features li::before,
.check-list li::before {
  content: '';
  width: 7px;
  height: 7px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--accent);
  flex: 0 0 auto;
}

.pricing-table-wrapper {
  overflow: visible;
}

.pricing-table {
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.pricing-table th,
.pricing-table td {
  border-color: var(--border);
}

.hero {
  min-height: calc(100vh - var(--nav-height));
}

.hero .container {
  padding-top: 84px;
  padding-bottom: 84px;
}

.footer,
.footer-minimal {
  margin-top: 76px;
  padding: 32px 0 48px;
  border-top: 1px solid var(--border);
  color: var(--text-3);
  font-size: 13px;
}

.footer a,
.footer-minimal a {
  color: var(--text-2);
}

.footer a:hover,
.footer-minimal a:hover {
  color: var(--text-1);
}

.legal-content,
.content-container {
  max-width: var(--content);
}

.legal-content h2,
.content-container h2 {
  margin-top: 44px;
  color: var(--text-1);
  font-size: 24px;
}

.legal-content h3,
.content-container h3 {
  margin-top: 28px;
}

.legal-content ul,
.content-container ul,
.content-container ol {
  padding-left: 22px;
}

.legal-content table,
.content-container table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.legal-content th,
.legal-content td,
.content-container th,
.content-container td {
  padding: 12px 14px;
  border: 1px solid var(--border);
  color: var(--text-2);
  vertical-align: top;
}

.legal-content th,
.content-container th {
  color: var(--text-1);
  background: var(--surface-3);
}

.faq-question {
  background: transparent;
  color: var(--text-1);
}

.faq-question:hover {
  background: var(--surface-3);
}

.faq-answer {
  color: var(--text-2);
}

.usage-bar-wrap {
  background: var(--surface);
}

.usage-bar {
  background: var(--accent);
}

.error-msg {
  border-color: rgba(255, 107, 107, 0.38) !important;
  background: rgba(255, 107, 107, 0.1) !important;
  color: #ffb3b3 !important;
}

.risk-note {
  border-left: 4px solid var(--danger) !important;
  background: rgba(255, 107, 107, 0.08) !important;
}

.card-accent {
  border-color: var(--accent-line) !important;
  background: var(--accent-soft) !important;
}

.inline-action {
  background: none;
  border: none;
  color: var(--accent-ink);
  font: inherit;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
}

.muted-link {
  color: var(--accent-ink) !important;
}

.home-page h1,
.home-page h2,
.home-page h3,
.home-page .pricing-plan,
.home-page .footer-title,
.account-page .card-title,
.account-page .pricing-period,
.account-page .sub-detail-label,
.account-page .badge-save {
  letter-spacing: 0 !important;
}

.home-page .feature-icon svg,
.home-page .feature-icon svg * {
  color: var(--accent);
  stroke: currentColor;
}

.hidden {
  display: none !important;
}

@media (max-width: 840px) {
  .nav-inner,
  .nav-container,
  .container,
  .content-container,
  .account-container {
    width: min(100% - 32px, var(--container));
  }

  .mobile-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    position: absolute;
    top: calc(var(--nav-height) - 1px);
    left: 0;
    right: 0;
    z-index: 999;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 16px 16px;
    background: rgba(8, 8, 8, 0.97);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.45);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-link,
  .nav-cta {
    width: 100%;
    justify-content: flex-start;
    padding: 12px 8px;
  }

  .nav-cta {
    justify-content: center;
    margin-top: 8px;
  }

  .grid-2,
  .grid-3,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .content-container,
  .page-wrapper {
    padding: 44px 0 68px;
  }

  h1,
  .page-title {
    font-size: 40px;
  }

  h2 {
    font-size: 30px;
  }

  .pricing-price,
  .price {
    font-size: 36px;
  }
}

/* ── THEME TOGGLE BUTTON ─────────────────────────────────── */
.theme-toggle {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  line-height: 1;
  transition: border-color var(--transition), background var(--transition);
  flex-shrink: 0;
  padding: 0;
  color: var(--text-2);
}

.theme-toggle:hover {
  border-color: var(--accent-line);
  background: var(--surface-3);
}

#themeToggle::before {
  content: '\1F319'; /* 🌙 */
}

[data-theme="light"] #themeToggle::before {
  content: '\2600\FE0F'; /* ☀️ */
}

@media (max-width: 600px) {
  .theme-toggle {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }
}