/* ===================================================================
   VISION — landing stylesпп
   Full Windows XP (Luna) desktop chrome: authentic titlebars with
   working-look window controls, glossy beveled buttons, bottom
   taskbar with Start menu. Deep, saturated blue — not pastel.
=================================================================== */

:root{
  --ink: #05070f;
  --ink-soft: #414a63;
  --paper: #ffffff;
  --paper-soft: #eef0f6;
  --border: #ccd2e3;

  --blue-void: #00001f;
  --blue-deep: #0000b8;
  --blue-royal: #0000ff;
  --blue-electric: #0000ff;
  --blue-pale: #e6e9ff;

  --luna-hi: #4f7fff;
  --luna-lo: #00009e;

  --radius-win: 8px;
  --radius-sm: 3px;

  --taskbar-h: 56px;
  --safe-top: env(safe-area-inset-top, 0px);
  --taskbar-total-h: calc(var(--taskbar-h) + var(--safe-top));

  --font-body: 'IBM Plex Mono', 'Consolas', 'Courier New', monospace;
  --font-serif: 'IBM Plex Mono', 'Consolas', 'Courier New', monospace;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: 20px; }
body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper-soft);
  -webkit-font-smoothing: antialiased;
  padding-top: var(--taskbar-total-h);
}
img{ max-width: 100%; display: block; }
a{ color: inherit; }
ul{ margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p, dl{ margin: 0; }

/* classic XP 3D scrollbar, best-effort (webkit only) */
::-webkit-scrollbar{ width: 16px; height: 16px; }
::-webkit-scrollbar-track{ background: #dce3f0; }
::-webkit-scrollbar-thumb{
  background: linear-gradient(180deg, #f4f7fc, #b9c6e6);
  border: 1px solid #8496c2;
}
::-webkit-scrollbar-corner{ background: #dce3f0; }

.container{
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}
.container--narrow{ max-width: 760px; }

.section{ padding: 96px 0; }
.section--alt{ background: var(--paper-soft); }

.eyebrow{
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-royal);
  margin-bottom: 14px;
}
.eyebrow--center{ text-align: center; }

.section-title{
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.section-title--center{ text-align: center; margin-bottom: 48px; }
.section-lead{
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 640px;
  margin-bottom: 32px;
}
.section-lead p + p{ margin-top: 14px; }

.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 18px;
  color: var(--ink);
}
.brand-name{ font-family: var(--font-serif); letter-spacing: .04em; }

/* ===================== BUTTONS (glossy Luna) ===================== */
.btn-xp{
  --btn-h: 44px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: var(--btn-h);
  padding: 0 22px;
  border-radius: var(--radius-sm);
  border: 1px solid #7a90c9;
  background: linear-gradient(180deg, #ffffff 0%, #eef2fb 45%, #d7e0f5 50%, #eef2fb 100%);
  color: var(--blue-royal);
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.9);
  transition: transform .1s ease, box-shadow .1s ease, background .15s ease, color .15s ease;
}
.btn-xp:hover{ border-color: var(--blue-royal); }
.btn-xp:active{ transform: translateY(1px); box-shadow: inset 0 2px 4px rgba(0,0,40,.25); }
.btn-xp .chev{ font-size: 18px; line-height: 1; transform: translateY(-1px); }

.btn-xp--primary{
  background: linear-gradient(180deg, #6d8dff 0%, #1c2fff 45%, var(--blue-royal) 50%, #3a4dff 100%);
  color: #fff;
  border-color: var(--blue-void);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.5);
}
.btn-xp--primary:hover{ background: linear-gradient(180deg, #8199ff 0%, #3646ff 45%, #1c2fff 50%, #4d5eff 100%); }

.btn-xp--lg{ --btn-h: 54px; padding: 0 28px; font-size: 15.5px; }
.btn-xp--sm{ --btn-h: 36px; padding: 0 16px; font-size: 13px; }
.btn-xp--full{ width: 100%; margin-top: 24px; }

.btn-link{
  text-decoration: none;
  font-weight: 700;
  color: var(--blue-royal);
  font-size: 15px;
  display: inline-flex;
  align-items: center;
}

/* ===================== WINDOW CHROME (Luna) ===================== */
.win-window{
  background: var(--paper);
  border: 1px solid var(--blue-void);
  border-radius: var(--radius-win) var(--radius-win) var(--radius-sm) var(--radius-sm);
  box-shadow: 5px 5px 0 rgba(16,25,156,.08), 0 1px 3px rgba(2,4,15,.1);
  overflow: hidden;
}
.win-titlebar{
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 6px 7px 10px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.55) 0%, rgba(255,255,255,0) 45%),
    linear-gradient(180deg, var(--luna-hi) 0%, var(--blue-royal) 42%, #0000d6 60%, var(--luna-lo) 100%);
  color: #fff;
  overflow: hidden;
}
.win-title{
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-shadow: 0 1px 1px rgba(0,0,30,.4);
}
.win-icon{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-style: normal;
  min-width: 18px;
}

.win-controls{ display: flex; gap: 2px; flex-shrink: 0; z-index: 1; }
.win-btn{
  width: 25px; height: 23px;
  border-radius: 4px;
  border: 1px solid rgba(0,0,45,.5);
  background: linear-gradient(180deg, #ffffff 0%, #dbe6f8 35%, #9fb4e0 52%, #c6d5f2 60%, #eaf1fc 100%);
  color: #1c2560;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.95);
}
.win-btn--close{
  border-radius: 4px 7px 4px 4px;
  background: linear-gradient(180deg, #ffb3ac 0%, #f2543f 35%, #c81f16 52%, #e8493a 60%, #ff8a76 100%);
  color: #fff;
}
.win-btn:hover{ filter: brightness(1.1); }
.win-btn:active{ box-shadow: inset 0 1px 4px rgba(0,0,0,.45); }

.win-body{ padding: 28px; }

/* window interactivity: minimize / restore / close (shake) */
.win-window.is-minimized .win-body{ display: none; }

@keyframes win-shake{
  10%, 90% { transform: translateX(-2px); }
  20%, 80% { transform: translateX(4px); }
  30%, 50%, 70% { transform: translateX(-8px); }
  40%, 60% { transform: translateX(8px); }
}
.win-window.is-shaking{ animation: win-shake .4s ease; }

/* ===================== HERO ===================== */
.hero{
  position: relative;
  min-height: 100vh;
  background: #000;
  overflow: visible;
  padding: clamp(58px, 7vw, 88px) 32px clamp(72px, 8vw, 108px);
}
.hero-photo{
  position: relative;
  width: min(88%, 560px);
  height: auto;
  aspect-ratio: 16/10.2;
  object-fit: cover;
  object-position: center center;
  margin: 34px auto 0;
}

.hero-copy{
  position: relative;
  width: min(600px, 100%);
  min-height: 0;
  margin: 0 auto;
  padding: 0;
  display: flex;
  flex-direction: column;
  color: #fff;
  text-shadow: none;
}
.hero-copy h1{
  margin: 0 0 20px;
  color: var(--blue-royal);
  font-size: clamp(56px, 7.4vw, 92px);
  line-height: .95;
  font-weight: 700;
  letter-spacing: 0;
}
.hero-lead{
  max-width: 520px;
  margin: 0;
  font-size: clamp(16px, 1.45vw, 20px);
  line-height: 1.42;
  font-weight: 400;
  letter-spacing: .01em;
  text-align: left;
}
.hero-sublead{
  max-width: 560px;
  margin: 40px 0 0;
  font-size: clamp(17px, 1.55vw, 21px);
  line-height: 1.44;
  font-weight: 400;
  letter-spacing: .01em;
  text-align: left;
  color: #fff;
}
.hero-info-window{
  width: min(660px, 100%);
  margin: 34px auto 0;
  overflow: hidden;
  border: 1px solid #0c1020;
  border-radius: 7px;
  background: #f7f7f7;
  box-shadow: 0 0 34px rgba(32, 61, 255, .26);
}
.hero-info-window .win-titlebar{
  min-height: 30px;
  height: 30px;
  text-align: left;
}
.hero-info-note{
  padding: 18px;
  background: #fbfbfb;
  color: var(--ink);
}
.hero-price{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 4px 8px 16px;
  border-bottom: 1px solid #c8cce0;
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.45;
  text-align: center;
}
.hero-info{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
  margin: 14px auto 0;
  text-align: left;
}
.hero-info div{
  padding: 14px 16px;
  border: 1px solid #c8cce0;
  border-radius: 0;
  background: #fff;
}
.hero-info span{
  display: block;
  margin-bottom: 8px;
  color: var(--blue-electric);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
  text-transform: uppercase;
}
.hero-info p{
  color: var(--ink-soft);
  font-size: 13.5px;
  line-height: 1.45;
}
.hero-actions{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: min(460px, 100%);
  margin: 52px auto 0;
}
.hero-actions .btn-xp{
  width: 100%;
  text-decoration: none;
  text-shadow: none;
}
.hero-secondary{
  background: #f4f4f4;
  border-color: #c7c7c7;
  color: var(--blue-royal);
  background-image: none;
}
.hero-secondary:hover{ background: #fff; border-color: #fff; }

/* ===================== ABOUT ===================== */
.mission-copy{
  max-width: 820px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.mission-block h3{
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--blue-royal);
}
.mission-block p{
  max-width: 720px;
  font-size: 16px;
  line-height: 1.62;
  color: var(--ink-soft);
}
.mission-block p + p{ margin-top: 12px; }
.mission-cta{
  align-self: flex-start;
  min-width: min(100%, 320px);
  margin-top: 2px;
}

.about-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 8px;
}
.about-item h3{
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--blue-royal);
}
.about-item p{
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
}

/* ===================== MODULES ===================== */
.program-intro{
  max-width: 760px;
  margin: -30px auto 44px;
  text-align: center;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.modules{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.module .win-body{ padding: 22px 24px; }
.module h3{
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.3;
}
.module p{
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.module-list{
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}
.module-list li{
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.module-list li::before{
  content: "-";
  position: absolute;
  left: 0;
  color: var(--blue-royal);
  font-weight: 700;
}
.module-result{
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.module-result b{ color: var(--blue-royal); }
.program-note{
  margin-top: 14px;
  color: var(--ink);
}
.module .win-titlebar .win-icon{
  font-size: 13px;
  min-width: 22px;
}
.program-final{
  max-width: 860px;
  margin: 32px auto 0;
}
.program-final .win-body{
  text-align: center;
  padding: 36px 32px;
}
.program-final p{
  max-width: 700px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
}
.program-final h3{
  margin: 26px 0 0;
  font-size: 20px;
  line-height: 1.35;
}
.program-actions{
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 26px;
}
.program-actions .btn-xp{
  text-decoration: none;
  min-width: min(100%, 260px);
}
.program-secondary{
  background: #fff;
  color: var(--blue-royal);
}

/* ===================== FAQ ===================== */
.faq-list{ display: flex; flex-direction: column; gap: 14px; }
.faq-q{
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
}
.faq-toggle{
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: var(--radius-sm);
  background: var(--blue-pale);
  color: var(--blue-royal);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-weight: 700;
  transition: transform .15s ease;
}
.faq-item[data-open="true"] .faq-toggle{ transform: rotate(45deg); }
.faq-a{
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
}
.faq-a p{
  padding: 0 24px 16px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.faq-a p:last-child{ padding-bottom: 22px; }
.faq-a ul{
  margin: -4px 24px 16px 44px;
  padding: 0;
  color: var(--ink-soft);
  font-size: 14.5px;
  line-height: 1.6;
}
.faq-cta{
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 34px;
}
.faq-cta .btn-xp{
  width: min(460px, 100%);
  min-height: 58px;
}
.faq-question-link{
  background: #fff;
  color: var(--blue-royal);
  text-decoration: none;
  background-image: none;
}

/* ===================== FOOTER ===================== */
.footer{ background: var(--blue-deep); color: #c7cdf5; padding: 40px 0; }
.footer-inner{
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer .brand-name{ color: #fff; }
.footer-credit{ font-size: 14px; opacity: .85; }
.footer-socials{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}
.footer-socials a{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 8px 11px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 7px;
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  background: rgba(255,255,255,.06);
}
.footer-socials a:hover{
  border-color: rgba(255,255,255,.55);
  background: rgba(255,255,255,.12);
}
.footer-socials svg{
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.footer-copy{ margin-left: 0; font-size: 13px; opacity: .6; }

/* ===================== MODAL ===================== */
.modal-overlay{
  position: fixed;
  inset: 0;
  background: rgba(2,4,15,.6);
  backdrop-filter: blur(3px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: 20px;
}
.modal-overlay.is-open{ display: flex; }
.win-window--modal{ width: 100%; max-width: 360px; }
.modal-body{
  text-align: center;
  padding: 32px 28px;
}
.modal-body p{ font-size: 15px; line-height: 1.5; color: var(--ink-soft); margin-bottom: 20px; }

/* ===================== TASKBAR ===================== */
.xp-taskbar{
  position: fixed;
  left: 0; right: 0; top: 0;
  z-index: 450;
  height: var(--taskbar-total-h);
  padding-top: var(--safe-top);
  display: flex;
  align-items: stretch;
  background:
    linear-gradient(180deg, rgba(255,255,255,.25) 0%, rgba(255,255,255,0) 30%),
    linear-gradient(180deg, #1a3fe0 0%, var(--blue-royal) 45%, #0000c8 60%, var(--blue-void) 100%);
  border-bottom: 1px solid #6d8dff;
  box-shadow: 0 2px 8px rgba(0,0,30,.35);
}
.xp-start{
  display: flex;
  align-items: center;
  padding: 0 18px;
  margin: 3px;
  border: 1px solid #1a5c1a;
  border-radius: 6px;
  background: linear-gradient(180deg, #7fe36a 0%, #3d9e33 45%, #237a1c 50%, #4bb63f 100%);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 800;
  font-style: italic;
  font-size: 15px;
  text-shadow: 0 1px 1px rgba(0,30,0,.4);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.6);
  cursor: pointer;
  flex-shrink: 0;
}
.xp-start:hover{ filter: brightness(1.06); }
.xp-tasks{
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.xp-tasks::-webkit-scrollbar{ display: none; }
.xp-task{
  flex-shrink: 0;
  height: 100%;
  padding: 0 14px;
  border: 1px solid #0000a0;
  border-radius: 3px;
  background: linear-gradient(180deg, #3a5cff 0%, #1530d0 100%);
  color: #fff;
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.3);
}
.xp-task.is-active{
  background: linear-gradient(180deg, #0a1f9a, #1530d0);
  box-shadow: inset 0 2px 4px rgba(0,0,20,.5);
}
.xp-tray{
  display: flex;
  align-items: center;
  flex-shrink: 0;
  padding: 0 16px;
  border-left: 1px solid #0000a0;
  color: #dfe6ff;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}

/* ===================== START MENU ===================== */
.start-menu{
  position: fixed;
  left: 3px;
  top: calc(var(--taskbar-total-h) + 4px);
  max-height: calc(100vh - var(--taskbar-total-h) - 20px);
  overflow-x: hidden;
  overflow-y: auto;
  z-index: 450;
  width: 240px;
  background: var(--paper);
  border: 1px solid var(--blue-void);
  border-radius: var(--radius-win) var(--radius-win) var(--radius-sm) var(--radius-sm);
  box-shadow: 6px 6px 0 rgba(0,0,40,.18), 0 4px 16px rgba(0,0,30,.3);
  display: none;
  flex-direction: column;
  padding: 8px;
  gap: 2px;
}
.start-menu.is-open{ display: flex; }
.start-menu-header{
  font-family: var(--font-serif);
  font-size: 20px;
  color: #fff;
  background: linear-gradient(180deg, var(--luna-hi), var(--blue-royal));
  padding: 12px 14px;
  margin: -8px -8px 6px;
  letter-spacing: .04em;
}
.start-menu a{
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}
.start-menu a:hover{ background: var(--blue-pale); color: var(--blue-royal); }
.start-menu-cta{ margin: 6px 2px 2px; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 900px){
  .about-grid{ grid-template-columns: 1fr; gap: 24px; }
  .modules{ grid-template-columns: 1fr; }
  .hero-info{ grid-template-columns: 1fr; }
}

@media (max-width: 720px){
  .hero{
    min-height: 100vh;
    padding: 50px clamp(28px, 8.5vw, 62px) 76px;
  }
  .hero-photo{
    aspect-ratio: 16/10.6;
    width: 88%;
    margin-top: 32px;
  }
  .hero-copy{
    width: 100%;
  }
  .hero-copy h1{
    font-size: clamp(46px, 14vw, 64px);
    margin-bottom: 18px;
  }
  .hero-lead{
    font-size: clamp(15px, 4.4vw, 17px);
    line-height: 1.42;
  }
  .hero-sublead{
    font-size: clamp(16px, 4.7vw, 19px);
    line-height: 1.42;
    margin-top: 36px;
  }
  .hero-price{
    padding: 9px 12px;
    font-size: 13.5px;
  }
  .hero-info-window{
    margin-top: 28px;
  }
  .hero-info-note{ padding: 12px; }
  .hero-info{
    margin-top: 18px;
    gap: 10px;
  }
  .hero-info div{ padding: 12px 14px; }
  .hero-info p{ font-size: 13px; }
  .hero-actions{ gap: 18px; margin-top: 34px; }
  .hero-actions .btn-xp{
    width: 100%;
    min-height: 58px;
    height: auto;
    padding: 12px 16px;
    font-size: 15px;
    text-align: center;
  }
  .section{ padding: 64px 0; }
  .win-body{ padding: 22px; }
  .program-final .win-body{ padding: 28px 22px; }
  .program-actions .btn-xp{
    width: 100%;
    min-height: 52px;
    height: auto;
    padding-top: 10px;
    padding-bottom: 10px;
    text-align: center;
  }
  .mission-cta{
    width: 100%;
    min-height: 52px;
    height: auto;
    text-align: center;
  }
  .faq-cta .btn-xp--primary{
    padding-left: 10px;
    padding-right: 10px;
    font-size: clamp(12px, 3.45vw, 14px);
    white-space: nowrap;
  }
  .xp-start{ padding: 0 12px; }
  .xp-tray{ padding: 0 10px; }
  .footer-inner{
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-socials{
    margin-left: 0;
    flex-wrap: wrap;
  }
}