/* ============================================================
   LINTU — Shared Design System
   Matches index.html visual language exactly
   ============================================================ */
@import url("https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,200;0,9..144,300;0,9..144,400;1,9..144,200;1,9..144,300&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500&family=DM+Mono:wght@300;400;500&display=swap");

:root {
  --ink:        #1B3A2D;
  --ink-mid:    #2D5C46;
  --ink-light:  #3A7A5E;
  --cream:      #F5F2EB;
  --paper:      #FAFAF8;
  --sand:       #E8E4DB;
  --bg:         #0A0F0C;
  --bg-2:       #0F1710;
  --bg-3:       #141F17;
  --surface:    rgba(255,255,255,0.035);
  --surface-2:  rgba(255,255,255,0.06);
  --surface-3:  rgba(255,255,255,0.10);
  --text-1:     #E8EDE9;
  --text-2:     rgba(232,237,233,0.60);
  --text-3:     rgba(232,237,233,0.35);
  --text-4:     rgba(232,237,233,0.18);
  --gold:       #C8A96E;
  --gold-dim:   rgba(200,169,110,0.15);
  --gold-glow:  rgba(200,169,110,0.08);
  --green-acc:  #2DD4A0;
  --red-acc:    #F87171;
  --border:     rgba(255,255,255,0.07);
  --border-2:   rgba(255,255,255,0.12);
  --display:    "Fraunces", Georgia, serif;
  --body:       "DM Sans", system-ui, sans-serif;
  --mono:       "DM Mono", "Courier New", monospace;
  --r:   8px;
  --rlg: 16px;
  --rxl: 24px;
  --max: 1200px;
  --ease: cubic-bezier(0.4,0,0.2,1);
}

[data-theme="light"] {
  --bg:        #F5F2EB;
  --bg-2:      #FAFAF8;
  --bg-3:      #FFFFFF;
  --surface:   rgba(27,58,45,0.04);
  --surface-2: rgba(27,58,45,0.07);
  --surface-3: rgba(27,58,45,0.12);
  --text-1:    #1B2A22;
  --text-2:    rgba(27,42,34,0.60);
  --text-3:    rgba(27,42,34,0.38);
  --text-4:    rgba(27,42,34,0.18);
  --border:    rgba(27,58,45,0.09);
  --border-2:  rgba(27,58,45,0.16);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-font-smoothing:antialiased;scroll-behavior:smooth;}
body{font-family:var(--body);background:var(--bg);color:var(--text-1);min-height:100vh;line-height:1.6;}
::selection{background:var(--gold-dim);color:var(--gold);}
::-webkit-scrollbar{width:4px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--border-2);border-radius:2px;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;}

/* ── Noise overlay ─────────────────────────────────────────── */
body::before{content:'';position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");opacity:0.025;pointer-events:none;z-index:9999;}

/* ── Navigation ────────────────────────────────────────────── */
.nav{position:sticky;top:0;z-index:100;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,4vw,56px);background:rgba(10,15,12,0.88);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:background .3s var(--ease);}
[data-theme="light"] .nav{background:rgba(245,242,235,0.90);}
.nav-brand{display:flex;align-items:center;gap:10px;}
.nav-bird{width:32px;height:32px;background:var(--ink);border-radius:50%;display:flex;align-items:center;justify-content:center;padding:6px;flex-shrink:0;}
.nav-name{font-family:var(--display);font-size:18px;font-weight:300;color:var(--text-1);letter-spacing:-.01em;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-link{font-size:14px;color:var(--text-2);padding:7px 14px;border-radius:var(--r);transition:all .18s;cursor:pointer;background:none;border:none;white-space:nowrap;}
.nav-link:hover,.nav-link.active{color:var(--text-1);background:var(--surface-2);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn-nav-ghost{font-size:13px;font-weight:500;color:var(--text-2);background:none;border:1px solid var(--border-2);border-radius:var(--r);padding:8px 18px;cursor:pointer;transition:all .18s;font-family:var(--body);}
.btn-nav-ghost:hover{color:var(--text-1);border-color:var(--text-2);}
.btn-nav-primary{font-size:13px;font-weight:500;color:var(--bg);background:var(--text-1);border:none;border-radius:var(--r);padding:8px 18px;cursor:pointer;transition:all .18s;font-family:var(--body);}
.btn-nav-primary:hover{background:var(--cream);box-shadow:0 4px 16px rgba(0,0,0,.3);}
.theme-toggle{width:36px;height:36px;background:var(--surface-2);border:1px solid var(--border);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:15px;transition:all .2s;}
.theme-toggle:hover{background:var(--surface-3);}
@media(max-width:700px){.nav-links{display:none;}.nav-actions .btn-nav-ghost{display:none;}}

/* ── Cards ─────────────────────────────────────────────────── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--rlg);padding:clamp(20px,3vw,32px);transition:border-color .2s;position:relative;}
.card:hover{border-color:var(--border-2);}
.card-label{font-family:var(--mono);font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);margin-bottom:18px;}

/* ── Section headers ───────────────────────────────────────── */
.section-eyebrow{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.section-eyebrow::before{content:'';width:24px;height:1px;background:var(--gold);opacity:.5;}
.section-title{font-family:var(--display);font-size:clamp(28px,4vw,46px);font-weight:200;line-height:1.08;letter-spacing:-.03em;color:var(--text-1);margin-bottom:12px;}
.section-title em{font-style:italic;color:var(--gold);}
.section-sub{font-size:16px;color:var(--text-2);line-height:1.75;max-width:520px;}

/* ── Metric display ────────────────────────────────────────── */
.metric-val{font-family:var(--display);font-size:clamp(28px,4vw,44px);font-weight:200;letter-spacing:-.03em;color:var(--text-1);line-height:1;}
.metric-lbl{font-family:var(--mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin-bottom:5px;}
.metric-sub{font-family:var(--mono);font-size:10px;color:var(--text-3);margin-top:4px;}
.pos{color:#5DF0A0;} .neg{color:#FF8A80;} .gold{color:var(--gold);}

/* ── Buttons ───────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--body);font-size:14px;font-weight:500;padding:12px 24px;border-radius:var(--r);border:none;cursor:pointer;transition:all .2s var(--ease);letter-spacing:-.01em;}
.btn-primary{background:linear-gradient(135deg,var(--ink) 0%,var(--ink-mid) 100%);color:var(--cream);}
.btn-primary:hover{background:linear-gradient(135deg,var(--ink-mid),var(--ink-light));box-shadow:0 8px 24px rgba(27,58,45,.5);transform:translateY(-1px);}
.btn-ghost{background:var(--surface-2);color:var(--text-1);border:1px solid var(--border-2);}
.btn-ghost:hover{background:var(--surface-3);}
.btn-gold{background:var(--gold);color:var(--bg);}
.btn-gold:hover{background:#d4b55a;box-shadow:0 8px 20px rgba(200,169,110,.3);}

/* ── Inputs ────────────────────────────────────────────────── */
input[type=text],input[type=email],input[type=password],input[type=number]{width:100%;background:var(--surface-2);border:1.5px solid var(--border);border-radius:var(--r);padding:13px 16px;font-family:var(--body);font-size:15px;color:var(--text-1);outline:none;transition:border-color .18s,box-shadow .18s;}
input[type=text]:focus,input[type=email]:focus,input[type=password]:focus,input[type=number]:focus{border-color:var(--ink-light);box-shadow:0 0 0 3px rgba(58,122,94,.2);}
input::placeholder{color:var(--text-4);}
input[type=range]{-webkit-appearance:none;width:100%;height:3px;background:var(--surface-3);border-radius:2px;outline:none;cursor:pointer;}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--ink-light);border:2px solid var(--bg);box-shadow:0 0 0 1.5px var(--ink-light),0 2px 8px rgba(0,0,0,.3);cursor:pointer;transition:box-shadow .18s;}
input[type=range]::-webkit-slider-thumb:hover{box-shadow:0 0 0 3px rgba(58,122,94,.3),0 4px 12px rgba(0,0,0,.4);}

/* ── Tables ────────────────────────────────────────────────── */
table{width:100%;border-collapse:collapse;}
thead th{font-family:var(--mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);padding-bottom:12px;border-bottom:1px solid var(--border);text-align:left;font-weight:400;}
thead th:not(:first-child){text-align:right;}
tbody tr{transition:background .12s;}
tbody tr:hover{background:var(--surface-2);}
tbody td{padding:13px 0;border-bottom:1px solid rgba(255,255,255,.04);font-size:13px;color:var(--text-2);}
td:not(:first-child){text-align:right;font-family:var(--mono);font-size:12px;}

/* ── Chips ─────────────────────────────────────────────────── */
.chip{display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;padding:3px 9px;border-radius:4px;}
.chip-green{background:rgba(45,212,160,.1);color:#2DD4A0;border:1px solid rgba(45,212,160,.2);}
.chip-gold{background:var(--gold-glow);color:var(--gold);border:1px solid rgba(200,169,110,.2);}
.chip-red{background:rgba(248,113,113,.1);color:#F87171;border:1px solid rgba(248,113,113,.2);}
.chip-grey{background:var(--surface-2);color:var(--text-3);border:1px solid var(--border);}

/* ── Chart legends ─────────────────────────────────────────── */
.legend{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:14px;}
.legend-item{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:10px;color:var(--text-2);}
.legend-dot{width:8px;height:8px;border-radius:2px;flex-shrink:0;}

/* ── Bar rows ──────────────────────────────────────────────── */
.bar-row{display:flex;align-items:center;gap:12px;margin-bottom:10px;}
.bar-lbl{font-family:var(--mono);font-size:11px;color:var(--text-2);width:150px;flex-shrink:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.bar-track{flex:1;height:6px;background:var(--surface-3);border-radius:3px;overflow:hidden;}
.bar-fill{height:100%;border-radius:3px;transition:width .7s var(--ease);}
.bar-val{font-family:var(--mono);font-size:11px;color:var(--text-3);width:40px;text-align:right;flex-shrink:0;}

/* ── Switcher tabs ─────────────────────────────────────────── */
.switcher{display:flex;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r);padding:3px;gap:2px;}
.switcher-tab{flex:1;padding:8px 14px;font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);background:none;border:none;border-radius:5px;cursor:pointer;transition:all .18s;white-space:nowrap;}
.switcher-tab.active{background:var(--surface-3);color:var(--text-1);}

/* ── Animations ────────────────────────────────────────────── */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.3;}}
@keyframes shimmer{0%{background-position:-800px 0;}100%{background-position:800px 0;}}
.anim-1{animation:fadeUp .6s .05s var(--ease) both;}
.anim-2{animation:fadeUp .6s .12s var(--ease) both;}
.anim-3{animation:fadeUp .6s .19s var(--ease) both;}
.anim-4{animation:fadeUp .6s .26s var(--ease) both;}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.visible{opacity:1;transform:translateY(0);}
.reveal-2{transition-delay:.1s;}.reveal-3{transition-delay:.2s;}.reveal-4{transition-delay:.3s;}
.pulse-dot{width:7px;height:7px;border-radius:50%;background:#5DF0A0;animation:pulse 2s ease-in-out infinite;flex-shrink:0;}
.skeleton{background:linear-gradient(90deg,var(--surface-2) 25%,var(--surface-3) 50%,var(--surface-2) 75%);background-size:800px 100%;animation:shimmer 1.6s infinite linear;border-radius:var(--r);}

/* ── Grid helpers ──────────────────────────────────────────── */
.g2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
.g3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;margin-bottom:16px;}
.g1{margin-bottom:16px;}
@media(max-width:860px){.g2{grid-template-columns:1fr;}.g3{grid-template-columns:1fr 1fr;}}
@media(max-width:540px){.g3{grid-template-columns:1fr;}}

/* ── Page wrapper ──────────────────────────────────────────── */
.page{max-width:var(--max);margin:0 auto;padding:clamp(32px,5vw,60px) clamp(20px,4vw,48px) 100px;overflow-x:hidden;}

/* ── Error / empty states ──────────────────────────────────── */
.empty-state{text-align:center;padding:60px 20px;}
.empty-state-icon{font-size:36px;margin-bottom:16px;opacity:.3;}
.empty-state-text{font-family:var(--mono);font-size:12px;color:var(--text-3);line-height:1.7;}

/* ── Logo image theming ─────────────────────────────────────── */
.nav-brand img[src*="lintu.svg"]{
  filter: brightness(0) invert(0.85);  /* dark bg → light logo */
}
[data-theme="light"] .nav-brand img[src*="lintu.svg"]{
  filter: brightness(0) saturate(100%) invert(18%) sepia(30%) saturate(800%) hue-rotate(110deg);
  /* light bg → brand green logo */
}

/* ── Nav dropdown ──────────────────────────────────────────── */
.nav-dropdown{position:relative;}
.nav-dropdown-btn{font-size:14px;color:var(--text-2);padding:7px 14px;border-radius:var(--r);transition:all .18s;}
.nav-dropdown-btn:hover,.nav-dropdown-btn.open{color:var(--text-1);background:var(--surface-2);}
.nav-dropdown-menu{position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);background:var(--surface);border:1px solid var(--border-2);border-radius:var(--rlg);padding:6px;min-width:180px;z-index:1000;display:none;box-shadow:0 8px 32px rgba(0,0,0,.3);}
.nav-dropdown-btn.open + .nav-dropdown-menu,.nav-dropdown:focus-within .nav-dropdown-menu{display:block;}
.nav-dropdown-item{display:block;padding:8px 12px;font-size:13px;color:var(--text-2);text-decoration:none;border-radius:var(--r);transition:all .15s;white-space:nowrap;}
.nav-dropdown-item:hover,.nav-dropdown-item.active{background:var(--surface-2);color:var(--text-1);}

/* ── Onboarding stepper ────────────────────────────────────── */
.onboard-stepper{display:flex;align-items:center;gap:0;margin-bottom:28px;padding:16px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--rlg);}
.onboard-step{display:flex;align-items:center;gap:8px;flex:1;}
.onboard-step:last-child{flex:0;}
.step-circle{width:28px;height:28px;border-radius:50%;border:1.5px solid var(--border-2);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;color:var(--text-4);flex-shrink:0;transition:all .25s;}
.step-circle.done{background:var(--green-acc);border-color:var(--green-acc);color:#000;}
.step-circle.active{background:var(--gold-glow);border-color:var(--gold);color:var(--gold);}
.step-label{font-size:12px;color:var(--text-3);white-space:nowrap;transition:color .25s;}
.step-label.done{color:var(--text-2);}
.step-label.active{color:var(--text-1);font-weight:500;}
.step-connector{flex:1;height:1px;background:var(--border);margin:0 8px;min-width:16px;}
.step-connector.done{background:var(--green-acc);}
@media(max-width:600px){
  .onboard-stepper{padding:12px;}
  .step-label{display:none;}
  .step-connector{min-width:8px;}
}

/* ── Mobile bottom tab bar (≤640px) ───────────────────────── */
.mobile-tab-bar{
  display:none;
  position:fixed;
  bottom:0;left:0;right:0;
  height:60px;
  background:var(--bg-2);
  border-top:1px solid var(--border);
  z-index:200;
  padding:0 4px env(safe-area-inset-bottom,0);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
}
.mobile-tab-bar nav{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  height:100%;
}
.mob-tab{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;text-decoration:none;
  color:var(--text-4);
  font-family:var(--mono);font-size:9px;letter-spacing:.04em;
  border:none;background:none;cursor:pointer;
  padding:6px 2px;
  border-radius:var(--r);
  transition:color .15s;
  -webkit-tap-highlight-color:transparent;
}
.mob-tab svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:stroke .15s;}
.mob-tab.active{color:var(--gold);}
.mob-tab.active svg{stroke:var(--gold);}
.mob-tab:active{background:var(--surface);}
/* Show on mobile, add padding to page */
@media(max-width:640px){
  .mobile-tab-bar{display:block;}
  body{padding-bottom:64px;}
  .nav-links{display:none;}
  .nav-actions .btn-nav-ghost{display:none;}
}

/* ── Touch targets ≥44px at mobile (Apple HIG / Material) ── */
@media(max-width:768px){
  .nav-link{padding:11px 14px;min-height:44px;display:flex;align-items:center;}
  .mob-tab{min-height:44px;}
  .btn,.btn-primary,.btn-nav-ghost,.btn-nav-primary{min-height:44px;}
  .nav-dropdown-btn{padding:11px 14px;min-height:44px;}
}

/* ── Mobile font floor — min 12px for all text ──────────── */
@media(max-width:640px){
  .source-badge,.source-dot+*{display:none;}
  [style*="font-size:9px"],[style*="font-size:10px"],[style*="font-size:11px"]{
    font-size:12px!important;
  }
}

/* ── Hamburger + nav drawer (641–1024px) ───────────────── */
.hamburger{
  display:none;
  flex-direction:column;gap:5px;
  background:none;border:none;cursor:pointer;
  padding:8px;border-radius:var(--r);
  transition:background .18s;
}
.hamburger:hover{background:var(--surface-2);}
.hamburger span{
  display:block;width:22px;height:2px;
  background:var(--text-2);border-radius:1px;
  transition:all .25s;
}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* Nav drawer */
.nav-drawer{
  display:none;
  position:fixed;top:64px;left:0;right:0;bottom:0;
  background:var(--bg);border-top:1px solid var(--border);
  z-index:150;overflow-y:auto;padding:16px;
  flex-direction:column;gap:4px;
}
.nav-drawer.open{display:flex;}
.nav-drawer a,.nav-drawer button{
  display:block;width:100%;text-align:left;
  font-size:15px;font-weight:400;
  color:var(--text-2);background:none;border:none;cursor:pointer;
  padding:12px 16px;border-radius:var(--r);
  text-decoration:none;transition:all .18s;font-family:var(--body);
}
.nav-drawer a:hover,.nav-drawer button:hover{
  background:var(--surface-2);color:var(--text-1);
}
.nav-drawer .drawer-section{
  font-family:var(--mono);font-size:9px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--text-4);
  padding:12px 16px 4px;margin-top:8px;
}
.nav-drawer .drawer-indent{padding-left:28px;}

@media(max-width:1024px){
  .hamburger{display:flex;}
  .nav-links{display:none!important;}
}
@media(max-width:640px){
  .hamburger{display:none;}
}
@media(max-width:768px){
  .mobile-tab-bar{display:flex!important;}
  body{padding-bottom:72px;}
}
/* Extend tab bar to iPad mini portrait */
@media(max-width:820px) and (min-width:641px){
  .mobile-tab-bar{display:flex!important;}
  body{padding-bottom:72px;}
}

/* ── iPad / tablet layout (641–1024px) ─────────────────── */
@media(min-width:641px) and (max-width:1024px){
  .page{padding:24px 28px 100px;}
  .g2{grid-template-columns:1fr 1fr;}
  .g3{grid-template-columns:1fr 1fr;}
  .hero-content{max-width:100%;}
  .nav-actions .btn-nav-ghost,.nav-actions .btn-nav-primary{display:block;}
}

/* ── Real bird logo ─────────────────────────────────────── */
.nav-logo-img{
  height:32px;width:auto;display:block;
  content:url('/static/img/logo-dark.png');
}
[data-theme="light"] .nav-logo-img{
  content:url('/static/img/logo-light.png');
}
.nav-bird{display:none!important;}  /* hide SVG placeholder now real logo is in */