/* Office Sidekick — shared brand styles (VibeProSoft v1.0) */
:root {
  --vps-bg-base: #000000;
  --vps-bg-surface: #0a0a14;
  --vps-bg-elevated: rgba(17, 24, 39, 0.50);
  --vps-bg-elevated-solid: #111827;

  --vps-blue-950: #172554;
  --vps-blue-700: #1d4ed8;
  --vps-blue-600: #2563eb;
  --vps-blue-500: #3b82f6;
  --vps-blue-400: #60a5fa;
  --vps-blue-300: #93c5fd;
  --vps-blue-200: #bfdbfe;

  --vps-amber-500: #f59e0b;
  --vps-amber-400: #fbbf24;
  --vps-amber-300: #fcd34d;
  --vps-amber-200: #fde68a;

  --vps-text-primary: #ffffff;
  --vps-text-secondary: #d1d5db;
  --vps-text-body: #9ca3af;
  --vps-text-muted: #6b7280;

  --vps-border: rgba(255, 255, 255, 0.10);
  --vps-border-strong: rgba(255, 255, 255, 0.18);
  --vps-border-hover: rgba(59, 130, 246, 0.40);

  --vps-radius-md: 0.75rem;
  --vps-radius-lg: 1rem;
  --vps-radius-xl: 1.25rem;
  --vps-radius-full: 9999px;

  --vps-shadow-glow: 0 0 30px rgba(96, 165, 250, 0.35);
  --vps-shadow-card: 0 1px 0 rgba(255,255,255,0.04) inset, 0 30px 60px -30px rgba(0,0,0,0.6);

  --font-sans: "Helvetica Neue", Helvetica, Arial, "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "Fira Mono", "JetBrains Mono", "SF Mono", "Courier New", monospace;
}

[data-theme="light"] {
  --vps-bg-base: #f4f4f3;
  --vps-bg-surface: #ebebe7;
  --vps-bg-elevated: rgba(255, 255, 255, 0.70);
  --vps-bg-elevated-solid: #ffffff;

  --vps-text-primary: #0b1020;
  --vps-text-secondary: #1f2937;
  --vps-text-body: #4b5563;
  --vps-text-muted: #6b7280;

  --vps-border: rgba(11, 16, 32, 0.10);
  --vps-border-strong: rgba(11, 16, 32, 0.18);
  --vps-border-hover: rgba(37, 99, 235, 0.45);

  --vps-shadow-glow: 0 0 30px rgba(37, 99, 235, 0.18);
  --vps-shadow-card: 0 1px 0 rgba(255,255,255,1) inset, 0 20px 40px -20px rgba(11,16,32,0.12);
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--vps-bg-base);
  color: var(--vps-text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}
body { min-height: 100vh; overflow-x: hidden; transition: background-color 350ms ease, color 350ms ease; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 880px; margin: 0 auto; padding: 0 24px; }

/* Page background atmospherics */
.bg-fx { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.bg-fx::before {
  content: ""; position: absolute; top: -10%; left: 50%;
  width: 1200px; height: 1200px; transform: translateX(-50%);
  background: radial-gradient(circle at center, rgba(37,99,235,0.22), transparent 55%);
  filter: blur(60px);
}
.bg-fx::after {
  content: ""; position: absolute; bottom: -20%; right: -10%;
  width: 900px; height: 900px;
  background: radial-gradient(circle at center, rgba(245,158,11,0.10), transparent 60%);
  filter: blur(60px);
}
[data-theme="light"] .bg-fx::before { background: radial-gradient(circle at center, rgba(37,99,235,0.10), transparent 55%); }
[data-theme="light"] .bg-fx::after  { background: radial-gradient(circle at center, rgba(245,158,11,0.06), transparent 60%); }
.bg-grid {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(to right, var(--vps-border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--vps-border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black 30%, transparent 75%);
  opacity: 0.55;
}
main, nav, footer { position: relative; z-index: 1; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--vps-bg-base) 70%, transparent);
  border-bottom: 1px solid var(--vps-border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; max-width: 1240px; margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name { font-weight: 700; letter-spacing: -0.01em; font-size: 16px; color: var(--vps-text-primary); }
.brand-tag {
  font-size: 9px; letter-spacing: 0.25em;
  color: var(--vps-blue-300); text-transform: uppercase; margin-top: 5px;
}
[data-theme="light"] .brand-tag { color: var(--vps-blue-700); }
.nav-links { display: flex; gap: 22px; font-size: 14px; color: var(--vps-text-body); }
.nav-links a { transition: color 150ms ease; }
.nav-links a:hover, .nav-links a.active { color: var(--vps-text-primary); }
.nav-right { display: flex; gap: 12px; align-items: center; }
@media (max-width: 720px) { .nav-links { display: none; } }

/* Logo mark — Office Sidekick orbit ring + OS core */
.logo-mark {
  position: relative; width: 44px; height: 44px;
  display: inline-grid; place-items: center; flex-shrink: 0;
}
.logo-mark .ring {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(96,165,250,0.55) 90deg,
    transparent 180deg,
    rgba(252,211,77,0.45) 270deg,
    transparent 360deg);
  -webkit-mask: radial-gradient(circle, transparent 60%, black 61%);
  mask: radial-gradient(circle, transparent 60%, black 61%);
  animation: spin 14s linear infinite;
}
.logo-mark .core {
  position: relative; width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, #2563eb, #172554);
  display: grid; place-items: center;
  font-size: 11px; font-weight: 800; letter-spacing: 0.04em; color: #fff;
  box-shadow: 0 0 18px rgba(96,165,250,0.45), inset 0 0 0 1px rgba(255,255,255,0.12);
}
.logo-mark .core::before {
  content: ""; position: absolute; inset: 0; border-radius: 8px;
  background: linear-gradient(135deg, transparent 45%, rgba(252,211,77,0.45) 100%);
  mix-blend-mode: screen;
}
.logo-mark .core span { position: relative; z-index: 1; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: var(--vps-radius-md);
  font-size: 14px; font-weight: 600;
  border: 1px solid transparent; letter-spacing: 0.005em;
  transition: transform 120ms ease, background 200ms ease, border-color 200ms ease, box-shadow 200ms ease, color 200ms ease;
  white-space: nowrap; user-select: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--vps-blue-600), var(--vps-blue-500));
  color: #fff;
  box-shadow: 0 8px 28px -8px rgba(37,99,235,0.6), inset 0 1px 0 rgba(255,255,255,0.18);
}
.btn-primary:hover { background: linear-gradient(135deg, var(--vps-blue-500), var(--vps-blue-400)); }
.btn-ghost { background: transparent; border-color: var(--vps-border); color: var(--vps-text-primary); }
.btn-ghost:hover { border-color: var(--vps-border-hover); }
.btn-icon {
  width: 38px; height: 38px; padding: 0;
  display: inline-grid; place-items: center;
  border-radius: var(--vps-radius-md); background: transparent;
  border: 1px solid var(--vps-border); color: var(--vps-text-secondary);
}
.btn-icon:hover { border-color: var(--vps-border-hover); color: var(--vps-text-primary); }
.btn-danger { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.40); color: #fecaca; }
.btn-danger:hover { background: rgba(239,68,68,0.20); }
[data-theme="light"] .btn-danger { color: #991b1b; }
.btn-sm { padding: 7px 12px; font-size: 13px; }

/* Hero */
.hero { padding: 70px 0 50px; position: relative; }
@media (min-width: 768px) { .hero { padding: 100px 0 70px; } }
.tag-pill {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 14px 7px 10px;
  border: 1px solid var(--vps-border);
  border-radius: var(--vps-radius-full);
  font-size: 11px; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--vps-text-body);
  background: var(--vps-bg-elevated); backdrop-filter: blur(12px);
}
.tag-pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--vps-blue-400);
  box-shadow: 0 0 12px var(--vps-blue-400);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}
.hero h1 {
  font-size: clamp(40px, 7vw, 88px);
  font-weight: 700; line-height: 1.04;
  letter-spacing: -0.025em; margin: 22px 0 0;
  text-wrap: balance; max-width: 18ch;
  background: linear-gradient(135deg, var(--vps-text-primary) 25%, var(--vps-blue-200) 60%, var(--vps-amber-200) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
[data-theme="light"] .hero h1 {
  background: linear-gradient(135deg, #0b1020 30%, #2563eb 65%, #b45309 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lede {
  font-size: 18px; line-height: 1.65;
  color: var(--vps-text-secondary);
  margin-top: 24px; max-width: 60ch;
}
[data-theme="light"] .hero p.lede { color: var(--vps-text-body); }
.hero-ctas { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }

/* Section headers */
.section-head { margin-bottom: 32px; }
.eyebrow {
  display: inline-block; font-size: 11px; letter-spacing: 0.30em;
  text-transform: uppercase; color: var(--vps-blue-300);
  margin-bottom: 14px;
}
[data-theme="light"] .eyebrow { color: var(--vps-blue-700); }
.h2 {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 700; letter-spacing: -0.02em;
  line-height: 1.1; margin: 0; max-width: 22ch; text-wrap: balance;
}
.h2 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--vps-blue-300), var(--vps-amber-200));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-sub { margin-top: 14px; max-width: 60ch; font-size: 16px; line-height: 1.65; color: var(--vps-text-body); }

/* Generic block section */
section.block { padding: 72px 0; position: relative; }
@media (max-width: 700px) { section.block { padding: 56px 0; } }

/* Glass cards */
.glass {
  position: relative;
  border-radius: var(--vps-radius-lg);
  border: 1px solid var(--vps-border);
  background: var(--vps-bg-elevated);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  padding: 24px;
  transition: border-color 220ms ease, transform 220ms ease;
}
.glass:hover { border-color: var(--vps-border-hover); transform: translateY(-2px); }
.glass h3 { margin: 0 0 8px; font-size: 18px; font-weight: 600; color: var(--vps-text-primary); }
.glass p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--vps-text-body); }
.glass .glyph {
  width: 40px; height: 40px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(37,99,235,0.30), rgba(23,37,84,0.30));
  color: var(--vps-blue-300);
  margin-bottom: 14px;
  border: 1px solid rgba(96,165,250,0.25);
}
[data-theme="light"] .glass .glyph {
  background: linear-gradient(135deg, rgba(37,99,235,0.15), rgba(191,219,254,0.40));
  color: var(--vps-blue-700);
  border-color: rgba(37,99,235,0.30);
}

/* Grids */
.cards-2 { display: grid; gap: 16px; grid-template-columns: 1fr; margin-top: 32px; }
.cards-3 { display: grid; gap: 16px; grid-template-columns: 1fr; margin-top: 32px; }
.cards-4 { display: grid; gap: 16px; grid-template-columns: 1fr; margin-top: 32px; }
@media (min-width: 640px) { .cards-2, .cards-3, .cards-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 920px) { .cards-3 { grid-template-columns: repeat(3, 1fr); } .cards-4 { grid-template-columns: repeat(4, 1fr); } }

/* Hub tool card (links from home) */
.tool-card {
  display: block;
  background: var(--vps-bg-elevated);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--vps-border);
  border-radius: var(--vps-radius-lg);
  padding: 22px;
  color: inherit;
  transition: border-color 200ms ease, transform 200ms ease, background 200ms ease;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.tool-card:hover { border-color: var(--vps-border-hover); transform: translateY(-3px); }
.tool-card .tc-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 14px; }
.tool-card .tc-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center;
  font-size: 24px;
  background: linear-gradient(135deg, rgba(37,99,235,0.30), rgba(23,37,84,0.30));
  border: 1px solid rgba(96,165,250,0.25);
}
.tool-card .tc-status {
  font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 999px;
  background: rgba(16,185,129,0.12); color: #6ee7b7;
  border: 1px solid rgba(16,185,129,0.30);
}
.tool-card .tc-status.beta { background: rgba(245,158,11,0.12); color: var(--vps-amber-300); border-color: rgba(245,158,11,0.30); }
.tool-card h3 { margin: 0 0 6px; font-size: 17px; font-weight: 600; }
.tool-card p { margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--vps-text-body); }
.tool-card .tc-arrow {
  position: absolute; bottom: 16px; right: 18px;
  color: var(--vps-blue-400); opacity: 0; transform: translateX(-4px);
  transition: opacity 200ms ease, transform 200ms ease;
}
.tool-card:hover .tc-arrow { opacity: 1; transform: translateX(0); }

/* Theme toggle */
.theme-toggle {
  position: relative; width: 64px; height: 32px; border-radius: 999px;
  background: var(--vps-bg-elevated); border: 1px solid var(--vps-border);
  display: inline-flex; align-items: center; padding: 3px;
  cursor: pointer; transition: border-color 200ms, background 200ms;
}
.theme-toggle:hover { border-color: var(--vps-border-hover); }
.theme-toggle .knob {
  width: 24px; height: 24px; border-radius: 999px;
  background: linear-gradient(135deg, var(--vps-blue-400), var(--vps-blue-600));
  box-shadow: 0 0 12px rgba(96,165,250,0.55);
  transition: transform 260ms cubic-bezier(0.5, 1.4, 0.5, 1);
  display: grid; place-items: center; color: #fff;
}
[data-theme="light"] .theme-toggle .knob {
  transform: translateX(32px);
  background: linear-gradient(135deg, #fcd34d, #f59e0b);
  box-shadow: 0 0 12px rgba(252,211,77,0.6);
}

/* Inputs */
.input, .textarea, .select {
  width: 100%;
  background: rgba(0,0,0,0.30);
  border: 1px solid var(--vps-border);
  color: var(--vps-text-primary);
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 14px; font-family: inherit;
}
.textarea { font-family: var(--font-mono); font-size: 13px; line-height: 1.55; min-height: 160px; resize: vertical; }
.select {
  font-family: var(--font-mono); font-size: 13px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='%2393c5fd' stroke-width='1.5'%3E%3Cpath d='M3 5l3 3 3-3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px;
  padding-right: 32px;
}
[data-theme="light"] .input, [data-theme="light"] .textarea, [data-theme="light"] .select {
  background-color: rgba(255,255,255,0.85);
}
[data-theme="light"] .select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='%231d4ed8' stroke-width='1.5'%3E%3Cpath d='M3 5l3 3 3-3'/%3E%3C/svg%3E");
}
.input:focus, .textarea:focus, .select:focus { outline: none; border-color: var(--vps-blue-500); }
.label {
  display: block; font-size: 11px; letter-spacing: 0.20em;
  text-transform: uppercase; color: var(--vps-text-muted);
  font-weight: 600; margin-bottom: 8px;
}
.field { margin-bottom: 16px; }
.field-row { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .field-row.two { grid-template-columns: 1fr 1fr; } .field-row.three { grid-template-columns: 1fr 1fr 1fr; } }

/* Sliders */
.slider {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px;
  background: var(--vps-border); border-radius: 4px; outline: none;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 16px; height: 16px; border-radius: 50%;
  background: linear-gradient(135deg, var(--vps-blue-400), var(--vps-blue-600));
  border: 2px solid var(--vps-bg-base);
  box-shadow: 0 0 0 1px var(--vps-blue-500), 0 0 12px rgba(96,165,250,0.6);
  cursor: pointer;
}
.slider::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%;
  background: linear-gradient(135deg, var(--vps-blue-400), var(--vps-blue-600));
  border: 2px solid var(--vps-bg-base);
  cursor: pointer;
}

/* Chips (toggle-style options) */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  border: 1px solid var(--vps-border);
  background: transparent;
  color: var(--vps-text-secondary);
  padding: 7px 12px;
  border-radius: 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  transition: border-color 160ms, background 160ms, color 160ms;
}
.chip:hover { border-color: var(--vps-border-hover); color: var(--vps-text-primary); }
.chip.active {
  background: linear-gradient(135deg, rgba(37,99,235,0.20), rgba(37,99,235,0.06));
  border-color: rgba(96,165,250,0.55);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(96,165,250,0.20), 0 0 14px -4px rgba(59,130,246,0.45);
}
[data-theme="light"] .chip.active { color: #0b1020; }

/* Footer */
footer { border-top: 1px solid var(--vps-border); padding: 44px 0 56px; margin-top: 0; }
.footer-inner {
  display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  font-size: 13px; color: var(--vps-text-muted);
}
.footer-inner b { color: var(--vps-text-secondary); font-weight: 500; }
.foot-tag { font-size: 10px; letter-spacing: 0.30em; text-transform: uppercase; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-right { text-align: right; }
.footer-lockup { display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.footer-lockup .footer-by {
  font-size: 11px; letter-spacing: 0.20em; text-transform: uppercase; color: var(--vps-text-muted);
}
.footer-vps-logo {
  height: 22px; width: auto; display: inline-block;
  filter: drop-shadow(0 0 12px rgba(96, 165, 250, 0.30));
}
[data-theme="light"] .footer-vps-logo { filter: drop-shadow(0 0 8px rgba(37, 99, 235, 0.20)); }

/* Tip-jar disclosure */
.tip-disclosure {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 16px 18px;
  margin: 0 0 28px;
  border: 1px solid rgba(245, 158, 11, 0.30);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08), rgba(37, 99, 235, 0.04));
  border-radius: var(--vps-radius-lg);
}
.tip-disclosure-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.22), rgba(252, 211, 77, 0.10));
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: var(--vps-amber-300);
  display: inline-grid; place-items: center;
}
.tip-disclosure h4 {
  margin: 0 0 4px; font-size: 13px; font-weight: 600;
  color: var(--vps-amber-300); letter-spacing: 0.02em;
}
[data-theme="light"] .tip-disclosure h4 { color: #b45309; }
.tip-disclosure p { margin: 0; font-size: 13px; line-height: 1.55; color: var(--vps-text-body); }
.tip-disclosure strong { color: var(--vps-text-secondary); }

/* Utility */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.mono { font-family: var(--font-mono); }
.muted { color: var(--vps-text-muted); }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row-between { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.spacer { flex: 1; }
.copy-btn {
  font-family: var(--font-mono); font-size: 11px;
  background: rgba(37,99,235,0.10);
  border: 1px solid rgba(96,165,250,0.30);
  color: var(--vps-blue-300);
  padding: 6px 10px; border-radius: 8px;
}
.copy-btn:hover { background: rgba(37,99,235,0.20); color: #fff; }
.copy-btn.copied { background: rgba(16,185,129,0.20); border-color: rgba(16,185,129,0.40); color: #6ee7b7; }