/* ═══════════════════════════════════════════════════
   Alpha Legist — Modern Design System v2
   Font: Sora (display) + DM Sans (body)
   Palette: Deep Navy · Amber Gold · Slate
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap');

/* ── Variables ── */
:root {
  --navy:       #0d1b3e;
  --navy-light: #152550;
  --navy-mid:   #1e3a6e;
  --gold:       #d4911a;
  --gold-light: #f2b84b;
  --gold-pale:  #fdf3e0;
  --slate:      #64748b;
  --slate-light:#94a3b8;
  --surface:    #f8fafd;
  --white:      #ffffff;
  --border:     rgba(100,116,139,0.15);
  --shadow-sm:  0 1px 3px rgba(13,27,62,0.06), 0 1px 2px rgba(13,27,62,0.04);
  --shadow-md:  0 4px 16px rgba(13,27,62,0.08), 0 2px 6px rgba(13,27,62,0.04);
  --shadow-lg:  0 12px 40px rgba(13,27,62,0.12), 0 4px 12px rgba(13,27,62,0.06);
  --shadow-xl:  0 24px 64px rgba(13,27,62,0.16), 0 8px 24px rgba(13,27,62,0.08);
  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body { font-family:'DM Sans', system-ui, sans-serif; color:#1e293b; background:var(--surface); min-height:100vh; }

/* ── Typography ── */
h1,h2,h3,h4,h5 { font-family:'Sora', sans-serif; font-weight:700; letter-spacing:-0.02em; }
.text-display  { font-family:'Sora', sans-serif; font-weight:800; letter-spacing:-0.03em; }
.text-gradient {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 60%, #3b6fd4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gold-gradient {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Layout ── */
.page-wrapper { display:flex; flex-direction:column; min-height:100vh; }
.container    { width:100%; max-width:1280px; margin:0 auto; padding:0 1.5rem; }

/* ── Surface Cards ── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
.card-hover {
  transition: transform var(--transition), box-shadow var(--transition);
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}
.card-glass {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid rgba(255,255,255,0.7);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

/* ── Buttons ── */
.btn {
  display:inline-flex; align-items:center; justify-content:center;
  gap:0.5rem; padding:0.75rem 1.75rem;
  font-family:'DM Sans', sans-serif; font-weight:600; font-size:0.95rem;
  border-radius:var(--radius-md); border:none; cursor:pointer;
  transition: all var(--transition);
  text-decoration:none; white-space:nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(13,27,62,0.25);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--navy-light) 0%, #2a4f8a 100%);
  box-shadow: 0 8px 24px rgba(13,27,62,0.3);
  transform: translateY(-1px);
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, #c47d0e 100%);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(212,145,26,0.35);
}
.btn-gold:hover {
  background: linear-gradient(135deg, #e09c20 0%, var(--gold) 100%);
  box-shadow: 0 8px 24px rgba(212,145,26,0.45);
  transform: translateY(-1px);
}
.btn-ghost {
  background: rgba(100,116,139,0.08);
  color: var(--slate);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: rgba(100,116,139,0.14);
  color: #334155;
  transform: translateY(-1px);
}
.btn-lg { padding:1rem 2.25rem; font-size:1.05rem; border-radius:var(--radius-lg); }
.btn-sm { padding:0.5rem 1.1rem; font-size:0.85rem; border-radius:var(--radius-sm); }
.btn-full { width:100%; }

/* ── Form Controls ── */
.form-label {
  display:block; margin-bottom:0.3rem;
  font-family:'Sora', sans-serif; font-weight:600; font-size:0.75rem;
  text-transform:uppercase; letter-spacing:0.07em; color:var(--slate);
}
.form-input, .form-select {
  width:100%; padding:0.7rem 0.95rem;
  background:var(--white); border:1.5px solid rgba(100,116,139,0.2);
  border-radius:var(--radius-md); color:#1e293b;
  font-family:'DM Sans', sans-serif; font-size:0.92rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline:none; appearance:none;
}
.form-input::placeholder { color: var(--slate-light); }
.form-input:focus, .form-select:focus {
  border-color: var(--navy-mid);
  box-shadow: 0 0 0 3px rgba(30,58,110,0.09);
}
.form-input-icon { position:relative; }
.form-input-icon .icon {
  position:absolute; left:1rem; top:50%; transform:translateY(-50%);
  color: var(--slate-light); pointer-events:none;
}
.form-input-icon .form-input { padding-left:2.75rem; }
.form-select-wrap { position:relative; }
.form-select-wrap::after {
  content:''; position:absolute; right:1rem; top:50%; transform:translateY(-50%);
  width:0; height:0;
  border-left:5px solid transparent; border-right:5px solid transparent;
  border-top:5px solid var(--slate-light); pointer-events:none;
}
.input-group { display:flex; flex-direction:column; gap:0.45rem; }

/* ── Results / Output ── */
.result-card {
  border-radius: var(--radius-lg);
  overflow:hidden;
  animation: fadeSlideUp 0.35s cubic-bezier(0.4,0,0.2,1);
}
.result-header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  color:var(--white); padding:1.25rem 1.5rem;
  display:flex; align-items:center; gap:0.75rem;
}
.result-body { background:var(--white); padding:1.5rem; }
.result-row {
  display:flex; justify-content:space-between; align-items:center;
  padding:0.75rem 0; border-bottom:1px solid var(--border);
}
.result-row:last-child { border-bottom:none; }
.result-label { font-size:0.88rem; color:var(--slate); font-weight:500; }
.result-value { font-weight:600; color:#1e293b; font-size:0.96rem; }
.result-total {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  border-radius:var(--radius-md); padding:1.25rem 1.5rem; margin-top:1rem;
  display:flex; justify-content:space-between; align-items:center; color:var(--white);
}
.result-total-label { font-size:0.9rem; opacity:0.85; }
.result-total-value { font-family:'Sora',sans-serif; font-weight:700; font-size:1.5rem; }
.alert-error {
  background:#fef2f2; border:1.5px solid #fca5a5; border-radius:var(--radius-md);
  padding:1rem 1.25rem; display:flex; align-items:flex-start; gap:0.75rem;
  animation: fadeSlideUp 0.25s ease;
}
.alert-error .icon { color:#ef4444; flex-shrink:0; margin-top:2px; }
.alert-success {
  background:#f0fdf4; border:1.5px solid #86efac; border-radius:var(--radius-md);
  padding:1rem 1.25rem; display:flex; align-items:flex-start; gap:0.75rem;
}
.alert-success .icon { color:#22c55e; flex-shrink:0; }

/* ── Loading Spinner ── */
.spinner {
  width:18px; height:18px;
  border:2.5px solid rgba(255,255,255,0.3);
  border-top-color:white; border-radius:50%;
  animation:spin 0.7s linear infinite;
}
.spinner-navy {
  border-color: rgba(13,27,62,0.15);
  border-top-color: var(--navy);
}

/* ── Header chrome ── */
.site-header {
  background: var(--navy);
  position:sticky; top:0; z-index:100;
  border-bottom:1px solid rgba(255,255,255,0.08);
  box-shadow:0 1px 12px rgba(13,27,62,0.3);
}
.header-inner {
  max-width:1280px; margin:0 auto; padding:0 1.25rem;
  display:flex; align-items:center; justify-content:space-between;
  height:56px; gap:1rem;
}
.logo-wrap { display:flex; align-items:center; gap:0.6rem; text-decoration:none; flex-shrink:0; }
.logo-img  { height:32px; width:auto; }
.logo-name { font-family:'Sora',sans-serif; font-weight:700; font-size:1.05rem; color:var(--white); line-height:1; }
.logo-tag  { display:none; }

/* Main nav */
.site-nav { display:flex; align-items:center; gap:0.15rem; }
.nav-link {
  font-size:0.82rem; font-weight:500; color:rgba(255,255,255,0.72);
  padding:0.38rem 0.65rem; border-radius:var(--radius-sm);
  text-decoration:none; transition:all var(--transition); white-space:nowrap;
}
.nav-link:hover, .nav-link.active {
  color:var(--white); background:rgba(255,255,255,0.1);
}
.nav-divider {
  width:1px; height:16px; background:rgba(255,255,255,0.12); margin:0 0.25rem; flex-shrink:0;
}

/* Hamburger */
.hamburger { display:none; flex-direction:column; gap:4px; cursor:pointer; padding:0.4rem; border:none; background:transparent; }
.hamburger span { display:block; width:20px; height:1.5px; background:white; border-radius:2px; transition:all var(--transition); }
.hamburger.open span:nth-child(1) { transform:translateY(5.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity:0; }
.hamburger.open span:nth-child(3) { transform:translateY(-5.5px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display:none; position:absolute; top:56px; left:0; right:0;
  background:var(--navy); border-top:1px solid rgba(255,255,255,0.08);
  padding:0.75rem 1.25rem 1rem; z-index:99; flex-direction:column; gap:0.1rem;
  animation:slideDown 0.18s ease;
}
.mobile-menu.open { display:flex; }
.mobile-menu .nav-link { padding:0.6rem 0.75rem; font-size:0.88rem; }

/* ── Footer ── */
.site-footer {
  background: rgba(13,27,62,0.97); color:rgba(255,255,255,0.5);
  padding:0.85rem 0; border-top:1px solid rgba(255,255,255,0.06);
}
.footer-inner {
  max-width:1280px; margin:0 auto; padding:0 1.25rem;
  display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap;
}
.footer-left { display:flex; align-items:center; gap:0.6rem; }
.footer-logo { height:22px; opacity:0.6; }
.footer-name { font-family:'Sora',sans-serif; font-weight:600; font-size:0.8rem; color:rgba(255,255,255,0.7); }
.footer-sep  { color:rgba(255,255,255,0.15); }
.footer-disclaimer { font-size:0.72rem; opacity:0.55; }
.footer-copy { font-size:0.72rem; opacity:0.4; white-space:nowrap; }

/* ── Page Hero (compact) ── */
.page-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 60%, var(--navy-mid) 100%);
  color:var(--white); padding:1.5rem 1.5rem 1.75rem;
  position:relative; overflow:hidden;
}
.page-hero::before {
  content:''; position:absolute; inset:0;
  background-image: radial-gradient(circle at 80% 50%, rgba(212,145,26,0.05) 0%, transparent 60%);
}
.page-hero .inner {
  position:relative; z-index:1; max-width:860px; margin:0 auto;
  display:flex; align-items:center; gap:1rem; flex-wrap:wrap;
}
.page-hero h1 { font-size:clamp(1.15rem,2.5vw,1.45rem); margin-bottom:0; font-weight:700; }
.page-hero p  { font-size:0.83rem; opacity:0.7; line-height:1.5; margin:0; }
.hero-badge {
  display:inline-flex; align-items:center; gap:0.35rem;
  background:rgba(255,255,255,0.1); border:1px solid rgba(255,255,255,0.18);
  border-radius:999px; padding:0.25rem 0.75rem; font-size:0.72rem; font-weight:600;
  color:var(--gold-light); white-space:nowrap; flex-shrink:0;
}
.pulse-dot {
  width:6px; height:6px; background:#4ade80;
  border-radius:50%; animation:pulse 2s infinite; flex-shrink:0;
}
.hero-text { display:flex; flex-direction:column; gap:0.2rem; }
@media(max-width:600px) {
  .page-hero .inner { flex-direction:column; align-items:flex-start; gap:0.5rem; }
  .page-hero h1 { font-size:1.1rem; }
}

/* ── Tool Card (tools.html grid) ── */
.tool-card {
  background:var(--white); border-radius:var(--radius-lg);
  border:1px solid var(--border); box-shadow:var(--shadow-sm);
  padding:1.1rem 1.25rem; display:flex; align-items:center; gap:1rem;
  transition:all var(--transition); text-decoration:none; color:inherit;
}
.tool-card:hover {
  transform:translateY(-2px); box-shadow:var(--shadow-lg);
  border-color: rgba(30,58,110,0.15);
}
.tool-icon {
  width:42px; height:42px; border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  font-size:1.2rem; flex-shrink:0;
}
.tool-tag { display:none; }
.tool-title {
  font-family:'Sora',sans-serif; font-size:0.9rem; font-weight:700;
  margin-bottom:0.15rem; color:#0f172a;
}
.tool-desc {
  font-size:0.78rem; color:var(--slate); line-height:1.4; flex:1;
}
.tool-info { flex:1; min-width:0; }
.tool-cta { display:none; }
.tool-arrow { color:var(--slate-light); flex-shrink:0; transition:transform var(--transition); }
.tool-card:hover .tool-arrow { transform:translateX(3px); color:var(--navy-mid); }

/* ── Calc Layout ── */
.calc-wrapper {
  max-width:700px; margin:0 auto; padding:1.5rem 1rem 3rem;
}
.calc-card {
  background:var(--white); border-radius:var(--radius-xl);
  box-shadow:var(--shadow-lg); border:1px solid var(--border);
}
.calc-body { padding:1.5rem 1.75rem; }
.calc-footer-note {
  margin-top:1rem; padding:0.6rem 0.9rem;
  background:var(--gold-pale); border-radius:var(--radius-sm);
  font-size:0.75rem; color:#92400e; border:1px solid rgba(212,145,26,0.18);
  display:flex; align-items:flex-start; gap:0.45rem;
}

/* ── Grid helpers ── */
.grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:0.85rem; }
.form-section { margin-bottom:1.25rem; }
.form-row { display:flex; flex-direction:column; gap:0.35rem; margin-bottom:1rem; }
.btn-row { display:flex; gap:0.75rem; margin-top:1.25rem; }

/* ── Animations ── */
@keyframes fadeSlideUp {
  from { opacity:0; transform:translateY(12px); }
  to   { opacity:1; transform:translateY(0); }
}
@keyframes fadeIn {
  from { opacity:0; } to { opacity:1; }
}
@keyframes slideDown {
  from { opacity:0; transform:translateY(-8px); }
  to   { opacity:1; transform:translateY(0); }
}
@keyframes spin {
  to { transform:rotate(360deg); }
}
@keyframes pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:0.6; transform:scale(0.85); }
}
@keyframes float {
  0%,100% { transform:translateY(0); }
  50%      { transform:translateY(-8px); }
}
.animate-in    { animation:fadeSlideUp 0.4s cubic-bezier(0.4,0,0.2,1); }
.animate-float { animation:float 4s ease-in-out infinite; }

/* ── Responsive ── */
@media (max-width:768px) {
  .grid-2       { grid-template-columns:1fr; }
  .grid-3       { grid-template-columns:1fr 1fr; }
  .btn-row      { flex-direction:column; }
  .site-nav     { display:none; }
  .hamburger    { display:flex; }
  .header-inner { height:52px; }
  .mobile-menu  { top:52px; }
  .calc-body    { padding:1.25rem; }
  .calc-header  { padding:1.25rem 1.5rem; }
  .calc-wrapper { padding:1rem 0.75rem 2.5rem; }
  .footer-inner { flex-direction:row; flex-wrap:wrap; }
  .footer-disclaimer { display:none; }
}
@media (max-width:480px) {
  .grid-3       { grid-template-columns:1fr; }
  .calc-body    { padding:1.25rem; }
}

/* ── Print ── */
@media print {
  .site-header, .site-footer, .btn, .hamburger { display:none !important; }
  .calc-card    { box-shadow:none; border:1px solid #ddd; }
}

/* ── Flatpickr overrides ── */
.flatpickr-calendar { border-radius:var(--radius-lg) !important; box-shadow:var(--shadow-xl) !important; }
.flatpickr-day.selected, .flatpickr-day.selected:hover {
  background:var(--navy) !important; border-color:var(--navy) !important;
}
.flatpickr-months .flatpickr-month { background:var(--navy) !important; border-radius:var(--radius-lg) var(--radius-lg) 0 0 !important; }

/* ── Tab component ── */
.tabs { display:flex; gap:0.35rem; background:rgba(100,116,139,0.08); border-radius:var(--radius-md); padding:0.3rem; margin-bottom:1.75rem; }
.tab-btn {
  flex:1; padding:0.65rem 1.25rem; border:none; cursor:pointer;
  border-radius:calc(var(--radius-md) - 4px); font-weight:600; font-size:0.9rem;
  transition:all var(--transition); background:transparent; color:var(--slate);
}
.tab-btn.active {
  background:var(--white); color:var(--navy);
  box-shadow:var(--shadow-sm);
}
.tab-panel { display:none; }
.tab-panel.active { display:block; animation:fadeIn 0.2s ease; }

/* ── Dynamic row (stamp) ── */
.dynamic-row {
  display:grid; grid-template-columns:1fr 1fr 1fr auto; gap:0.75rem;
  align-items:end; padding:0.75rem; background:var(--surface);
  border-radius:var(--radius-md); border:1px solid var(--border);
  margin-bottom:0.75rem;
}
.remove-row-btn {
  width:36px; height:36px; border-radius:var(--radius-sm); border:none;
  background:rgba(239,68,68,0.08); color:#ef4444; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  transition:all var(--transition);
}
.remove-row-btn:hover { background:rgba(239,68,68,0.15); }

/* ── Quick examples ── */
.quick-examples { display:flex; flex-wrap:wrap; gap:0.5rem; margin-top:0.5rem; }
.example-chip {
  font-size:0.78rem; font-weight:600; padding:0.35rem 0.85rem;
  border-radius:999px; border:1.5px solid; cursor:pointer;
  transition:all var(--transition); background:transparent;
}