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

:root {
  --ink: #101d39;
  --muted: #53617a;
  --blue: #155bd7;
  --blue-dark: #104bb5;
  --blue-pale: #edf4ff;
  --line: #dce5f2;
  --surface: #f7f9fc;
  --white: #fff;
  --shadow: 0 18px 48px rgba(28, 68, 130, .12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: Inter, "Segoe UI", Arial, sans-serif; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
.site-header { height: 78px; max-width: 1240px; padding: 0 30px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; place-items:center; gap: 12px; font-weight: 800; font-size: 21px; letter-spacing: -.6px; white-space: nowrap; }
.brand-mark { width: 32px; height: 32px; display: grid; place-items: center; color: var(--blue); }
.brand-mark svg { width: 100%; fill: none; stroke: currentColor; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.main-nav { display: flex; align-items: center; gap: 32px; font-size: 14px; font-weight: 600; }
.main-nav > a:not(.button):hover, .text-link:hover { color: var(--blue); }
.menu-toggle { display: none; border: 0; background: transparent; padding: 8px; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px; }
.button { min-height: 50px; padding: 12px 22px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; color: white; background: var(--blue); border: 1px solid var(--blue); font: inherit; font-weight: 700; box-shadow: 0 7px 16px rgba(21,91,215,.16); transition: .2s ease; cursor: pointer; }
.button:hover { background: var(--blue-dark); transform: translateY(-1px); }
.button-small { min-height: 42px; padding: 9px 16px; font-size: 13px; }
.button-outline { color: var(--ink); background: white; border-color: #aebbd0; box-shadow: none; }
.button-outline:hover { color: var(--blue); background: var(--blue-pale); border-color: var(--blue); }
.windows-icon {
    width: 17px;
    height: 17px;
    display: inline-block;
    background-color: currentColor;
    mask: url("../images/windows.svg") center / contain no-repeat;
    -webkit-mask: url("../images/windows.svg") center / contain no-repeat;
}
.section-wrap { width: min(1160px, calc(100% - 60px)); margin-left: auto; margin-right: auto; }
.hero { padding: 58px 0 42px; display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 38px; }
.hero-copy h1 { margin: 18px 0 16px; font-size: clamp(38px, 4.1vw, 56px); line-height: 1.08; letter-spacing: -2.4px; }
.hero-copy p { color: var(--muted); font-size: 16px; margin: 0 0 13px; }
.hero-copy .hero-lead { color: #293b5d; font-size: 20px; line-height: 1.45; font-weight: 500; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; border-radius: 30px; padding: 6px 12px; color: #087a3c; background: #e8f8ef; font-size: 11px; font-weight: 800; letter-spacing: .45px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #16a45a; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 25px; }
.micro-note { margin-top: 14px !important; font-size: 12px !important; }
.hero-visual { position: relative; }
.hero-visual img { display: block; width: 100%; height: auto; max-width: 600px; border-radius: 17px; box-shadow: var(--shadow); border: 1px solid #e6edf7; }
.benefits { display: grid; grid-template-columns: repeat(3,1fr); padding: 35px 0 48px; border-bottom: 1px solid var(--line); }
.benefit { text-align: center; padding: 6px 26px; }
.benefit + .benefit { border-left: 1px solid var(--line); }
.feature-icon { display: inline-grid; place-items: center; width: 48px; height: 48px; color: var(--blue); }
.feature-icon svg { width: 43px; height: 43px; fill: none; stroke: currentColor; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.benefit h2 { font-size: 18px; margin: 8px 0 3px; letter-spacing: -.4px; }
.benefit p { margin: 0; color: var(--muted); font-size: 14px; }
.preview-section { display: grid; grid-template-columns: .72fr 1.28fr; gap: 42px; align-items: center; padding-top: 68px; padding-bottom: 68px; }
.section-kicker { color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: 1.2px; }
.section-copy h2, .center-heading h2, .faq-content h2 { font-size: clamp(27px, 3vw, 36px); line-height: 1.2; letter-spacing: -1.1px; margin: 10px 0 14px; }
.section-copy p { color: var(--muted); font-size: 15px; }
.text-link { display: inline-flex; gap: 9px; align-items: center; margin-top: 8px; color: var(--blue); font-size: 14px; font-weight: 700; }
.preview-card { border: 1px solid #cbd8eb; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); background: white; }
.preview-topbar { height: 44px; padding: 0 15px; display: flex; align-items: center; gap: 9px; background: #f5f7fb; border-bottom: 1px solid var(--line); font-size: 12px; }
.window-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--blue); }
.preview-label { margin-left: auto; color: var(--muted); font-size: 10px; }
.preview-content { display: grid; grid-template-columns: .85fr 1.15fr; min-height: 245px; }
.tree-panel, .assignments-panel { padding: 16px; min-width: 0; }
.tree-panel { border-right: 1px solid var(--line); }
.tree-panel > strong, .assignments-panel > strong { font-size: 12px; }
.folder-tree { list-style: none; margin: 13px 0 0; padding: 0; font-size: 12px; line-height: 2.1; }
.indent-1 { padding-left: 17px; }.indent-2 { padding-left: 34px; }.indent-3 { padding-left: 51px; }
.assignment-head, .assignment { display: grid; grid-template-columns: .85fr 1.15fr; gap: 8px; padding: 9px 7px; border-bottom: 1px solid #edf0f5; font-size: 10px; overflow-wrap: anywhere; }
.assignment-head { margin-top: 13px; color: var(--muted); background: #f7f9fc; font-weight: 700; }
.preview-caption { margin: 0; padding: 8px 14px; background: #fafbfd; color: #7a879a; font-size: 10px; }
.details-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.detail-card { padding: 30px 28px; }
.detail-card + .detail-card { border-left: 1px solid var(--line); }
.detail-icon { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; color: var(--blue); background: var(--blue-pale); font-size: 12px; font-weight: 800; }
.detail-card h2 { font-size: 18px; margin: 14px 0 8px; letter-spacing: -.5px; }
.detail-card p { color: var(--muted); font-size: 13px; min-height: 66px; margin: 0 0 17px; }
.mini-tree { background: var(--surface); border: 1px solid #e8edf4; border-radius: 10px; padding: 13px; font-size: 12px; line-height: 1.95; }
.tree-indent { padding-left: 16px; }.tree-indent-2 { padding-left: 32px; }.tree-indent-3 { padding-left: 48px; }
.choice-visual { min-height: 118px; display: flex; align-items: center; justify-content: space-evenly; text-align: center; }
.choice-visual > div { display: grid; gap: 5px; font-size: 12px; }
.choice-symbol { color: var(--blue); font-size: 42px; line-height: 1.2; }
.choice-or { color: #8995a8; font-size: 12px; }
.date-example { display: flex; align-items: center; gap: 12px; padding: 13px; border: 1px solid var(--line); border-radius: 10px; }
.date-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 8px; color: var(--blue); background: var(--blue-pale); font-size: 12px; font-weight: 800; }
.date-example strong, .date-example small { display: block; }.date-example strong { font-size: 12px; }.date-example small { color: var(--muted); font-size: 10px; }
.how-steps { padding-top: 70px; padding-bottom: 70px; }
.center-heading { text-align: center; max-width: 650px; margin: 0 auto 34px; }
.steps-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.steps-grid article { padding: 24px; border: 1px solid var(--line); border-radius: 12px; background: white; }
.step-number { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; color: white; background: var(--blue); font-weight: 800; font-size: 13px; }
.steps-grid h3 { margin: 15px 0 6px; font-size: 17px; }.steps-grid p { margin: 0; color: var(--muted); font-size: 13px; }
.download-band { display: flex; align-items: center; gap: 20px; padding: 25px 30px; margin-bottom: 70px; border-radius: 15px; background: linear-gradient(110deg,#eaf2ff,#f4f8ff); }
.download-symbol { flex: 0 0 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; color: white; background: var(--blue); font-size: 28px; font-weight: 700; }
.download-band h2 { margin: 0 0 3px; font-size: 19px; }.download-band p { margin: 0; color: var(--muted); font-size: 13px; }.download-button { margin-left: auto; white-space: nowrap; }
.faq-section { display: grid; grid-template-columns: 1.25fr .75fr; gap: 55px; padding-bottom: 70px; }
.faq-content h2 { margin-bottom: 20px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 15px 30px 15px 0; cursor: pointer; font-size: 14px; font-weight: 650; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 3px; top: 12px; color: var(--blue); font-size: 22px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: 0; padding: 0 25px 15px 0; color: var(--muted); font-size: 13px; }
.faq-aside { align-self: center; padding: 28px; border-radius: 14px; background: var(--surface); text-align: center; }
.photo-stack { display: flex; justify-content: center; margin-bottom: 10px; color: var(--blue); font-size: 65px; line-height: 1; }.photo-stack span:nth-child(1) { transform: rotate(-13deg); }.photo-stack span:nth-child(2) { margin: 0 -14px; transform: translateY(-8px); }.photo-stack span:nth-child(3) { transform: rotate(13deg); }
.faq-aside h2 { margin: 8px 0; font-size: 21px; line-height: 1.25; }.faq-aside p { color: var(--muted); font-size: 13px; }
.site-footer { max-width: 1160px; width: calc(100% - 60px); margin: auto; padding: 22px 0 30px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-brand { font-size: 15px; }.small-mark { font-size: 24px; }.site-footer p { color: #7b8799; font-size: 11px; margin: 0; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 38px; }.hero-copy { max-width: 680px; }.hero-visual { max-width: 760px; }
  .preview-section { grid-template-columns: 1fr; gap: 22px; }.section-copy { max-width: 650px; }
  .details-grid { grid-template-columns: 1fr; }.detail-card + .detail-card { border-left: 0; border-top: 1px solid var(--line); }.detail-card p { min-height: 0; }
}
@media (max-width: 680px) {
  .site-header { height: 68px; padding: 0 20px; }.brand { font-size: 18px; }.brand-mark { width: 35px; height: 35px; }
  .menu-toggle { display: block; }.main-nav { display: none; position: absolute; z-index: 5; top: 64px; left: 14px; right: 14px; padding: 18px; background: white; border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); flex-direction: column; align-items: stretch; gap: 15px; }.main-nav.open { display: flex; }
  .section-wrap { width: calc(100% - 36px); }.hero { padding-top: 32px; gap: 25px; }.hero-copy h1 { font-size: 39px; letter-spacing: -1.7px; }.hero-copy .hero-lead { font-size: 18px; }.hero-actions { align-items: stretch; }.hero-actions .button { flex: 1 1 100%; }
  .benefits { grid-template-columns: 1fr; gap: 18px; padding: 26px 0; }.benefit { padding: 14px 10px; }.benefit + .benefit { border-left: 0; border-top: 1px solid var(--line); }
  .preview-section { padding-top: 48px; padding-bottom: 48px; }.preview-content { grid-template-columns: 1fr; }.tree-panel { border-right: 0; border-bottom: 1px solid var(--line); }.assignments-panel { overflow: hidden; }.assignment-head, .assignment { grid-template-columns: .8fr 1.2fr; }
  .steps-grid { grid-template-columns: 1fr; }.how-steps { padding-top: 48px; padding-bottom: 48px; }
  .download-band { flex-wrap: wrap; padding: 22px; margin-bottom: 48px; }.download-band > div:nth-child(2) { flex: 1; }.download-button { width: 100%; margin: 0; }
  .faq-section { grid-template-columns: 1fr; gap: 25px; padding-bottom: 48px; }.site-footer { width: calc(100% - 36px); flex-direction: column; align-items: flex-start; }
}