/* Mavn North — AI survey
   Component styles for the one-question-per-screen survey at /survey.
   Built on this site's own design tokens (css/ds/tokens/*) and the shared
   .ds-btn / .ds-eyebrow / .ds-wordmark components — nothing here is a new
   colour, font or spacing value that isn't already defined sitewide.
   The survey's own container carries data-product="ai", so every --accent*
   token already resolves to the Synapse purple family (see colors.css). */

.mn-survey{display:flex;flex-direction:column;min-height:100vh;background:var(--paper)}

.mn-survey-header{flex:none;border-bottom:1px solid var(--line);background:var(--paper)}
.mn-survey-header .mn-bar{min-height:64px}

.mn-survey-lang{display:flex;gap:var(--space-5)}
.mn-survey-lang button{font-family:var(--font-mono);font-size:var(--text-label);font-weight:var(--fw-medium);letter-spacing:var(--track-coord);text-transform:uppercase;color:var(--slate);padding:6px 0;border-bottom:1px solid transparent;transition:color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease)}
.mn-survey-lang button[aria-pressed="true"]{color:var(--ink);border-bottom-color:var(--accent)}
.mn-survey-lang button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* Progress rule + travelling node */
.mn-survey-progress{display:flex;align-items:center;max-width:720px;width:100%;margin:28px auto 0;padding:0 var(--pad);height:12px}
.mn-survey-progress.hidden{visibility:hidden}
.mn-survey-track{position:relative;flex:1;height:2px;background:var(--line);border-radius:2px}
.mn-survey-fill{position:absolute;left:0;top:0;height:2px;background:var(--ink);border-radius:2px;transition:width .45s var(--ease)}
.mn-survey-node{position:absolute;top:-5px;width:12px;height:12px;border-radius:50%;background:radial-gradient(circle at 35% 30%,var(--synapse-bright),var(--accent) 55%,var(--accent-deep));transform:translateX(-6px);transition:left .45s var(--ease);box-shadow:0 2px 8px rgba(91,47,199,.3)}

.mn-survey-main{flex:1;display:flex;justify-content:center;padding:clamp(24px,6vh,64px) var(--pad) 56px}
.mn-survey-stage{width:100%;max-width:720px}
.mn-survey-screen{animation:mnSurveyIn .45s var(--ease) both}
@keyframes mnSurveyIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.mn-survey-screen{animation:none}.mn-survey-fill,.mn-survey-node{transition:none}}

.mn-survey-eyebrow{margin-bottom:var(--space-3)}
.mn-survey-stage h1{font-family:var(--font-display);font-weight:var(--fw-medium);font-size:clamp(24px,3.4vw,32px);line-height:var(--lh-snug);letter-spacing:var(--track-display);color:var(--ink);max-width:20ch}
.mn-survey-stage h1 b{font-weight:var(--fw-semibold)}
.mn-survey-heart{display:inline-block;vertical-align:-0.05em;color:var(--accent-text);animation:mnSurveyBeat 1.1s var(--ease) .3s 1 both}
@keyframes mnSurveyBeat{0%{transform:scale(.6);opacity:0}45%{transform:scale(1.18);opacity:1}100%{transform:scale(1)}}
@media (prefers-reduced-motion:reduce){.mn-survey-heart{animation:none}}
.mn-survey-stage h2{font-family:var(--font-display);font-weight:var(--fw-medium);font-size:clamp(20px,2.6vw,25px);line-height:var(--lh-snug);letter-spacing:var(--track-display);color:var(--ink);max-width:30ch}
.mn-survey-help{color:var(--slate);font-size:var(--text-sm);margin-top:10px}
.mn-survey-lead{font-size:var(--text-sm);color:var(--slate);margin-top:var(--space-4);max-width:46ch;line-height:var(--lh-body)}

.mn-survey-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:var(--space-5)}
.mn-survey-stat{border-left:2px solid var(--accent);padding:2px 0 2px 16px;display:flex;align-items:center;gap:14px}
.mn-survey-stat .big{color:var(--accent-text);font-size:22px;font-weight:var(--fw-semibold);letter-spacing:.5px;white-space:nowrap}
.mn-survey-stat .cap{color:var(--slate);font-size:13.5px;line-height:1.45;max-width:20ch}

/* Single/multi-choice option cards */
.mn-survey-options{display:grid;gap:10px;margin-top:var(--space-6)}
.mn-survey-opt{display:flex;align-items:center;gap:14px;text-align:left;width:100%;background:var(--paper-warm, #fff);background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:15px 16px;transition:border-color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease)}
.mn-survey-opt:hover{border-color:var(--slate);box-shadow:0 1px 3px rgba(36,43,45,.05)}
.mn-survey-opt:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.mn-survey-key{flex:none;width:26px;height:26px;border:1px solid var(--line);border-radius:6px;display:grid;place-items:center;font-size:11.5px;font-weight:var(--fw-semibold);color:var(--slate);background:var(--paper-warm)}
.mn-survey-opt .lbl{flex:1;font-size:15.5px;line-height:1.45;color:var(--ink)}
.mn-survey-tick{flex:none;width:20px;height:20px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;background:#fff}
.mn-survey-opt.multi .mn-survey-tick{border-radius:5px}
.mn-survey-opt[aria-checked="true"]{border-color:var(--ink);background:#F3EEFF}
.mn-survey-opt[aria-checked="true"] .mn-survey-key{background:var(--ink);border-color:var(--ink);color:#fff}
.mn-survey-opt[aria-checked="true"] .mn-survey-tick{background:var(--accent);border-color:var(--accent)}
.mn-survey-opt[aria-checked="true"] .mn-survey-tick::after{content:"";width:6px;height:10px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg) translate(-1px,-1px)}
.mn-survey-other{margin-top:4px}
.mn-survey-opt.check .lbl{display:flex;flex-direction:column;gap:2px}
.mn-survey-opt.check .sub{font-size:13.5px;color:var(--slate)}
.mn-survey-opt.featured{border-color:var(--accent);padding:18px;background:linear-gradient(90deg,#F3EEFF,#fff)}
.mn-survey-opt.featured .lbl{font-weight:var(--fw-semibold)}
.mn-survey-opt.featured .sub{font-weight:var(--fw-regular)}
.mn-survey-note{background:var(--paper-warm);border-left:2px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:16px 18px;font-size:16px;color:var(--ink)}

/* 1-5 scale */
.mn-survey-scale{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:var(--space-6)}
.mn-survey-scale button{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 0;font-family:var(--font-display);font-size:22px;font-weight:var(--fw-thin);color:var(--ink);transition:border-color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease)}
.mn-survey-scale button:hover{border-color:var(--slate)}
.mn-survey-scale button[aria-checked="true"]{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:var(--fw-medium)}
.mn-survey-scale-labels{display:flex;justify-content:space-between;margin-top:10px;font-family:var(--font-mono);font-size:var(--text-label);font-weight:var(--fw-medium);letter-spacing:var(--track-coord);text-transform:uppercase;color:var(--slate)}

/* Text fields */
.mn-survey-field{margin-top:var(--space-5)}
.mn-survey-field label{display:block;font-size:14.5px;font-weight:var(--fw-medium);color:var(--ink);margin-bottom:8px}
.mn-survey-field label .tag{font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--slate);font-weight:var(--fw-semibold);margin-left:8px}
.mn-survey-field textarea,.mn-survey-field input[type=text],.mn-survey-field input[type=email],.mn-survey-field select{width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;font-family:var(--font-body);font-size:15.5px;line-height:1.5;color:var(--ink);transition:border-color var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease)}
.mn-survey-field textarea{min-height:120px;resize:vertical}
.mn-survey-field textarea:focus,.mn-survey-field input:focus,.mn-survey-field select:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(139,92,246,.18)}
.mn-survey-field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--slate) 50%),linear-gradient(135deg,var(--slate) 50%,transparent 50%);background-position:calc(100% - 22px) 50%,calc(100% - 16px) 50%;background-size:6px 6px;background-repeat:no-repeat}
.mn-survey-field.tight{margin-top:10px}
.mn-survey-other{width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;font-family:var(--font-body);font-size:15.5px;color:var(--ink)}
.mn-survey-other:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(139,92,246,.18)}

/* Nav row + buttons (uses real .ds-btn classes; this just adds layout) */
.mn-survey-nav{display:flex;align-items:center;gap:12px;margin-top:var(--space-7);flex-wrap:wrap}
.mn-survey-hint{font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:1.5px;color:var(--slate);text-transform:uppercase;margin-left:6px}
.mn-survey-error{color:#B3261E;font-size:14px;margin-top:14px;min-height:20px}
.mn-survey-preview{margin-top:var(--space-6);font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:1.5px;color:var(--slate);text-transform:uppercase}
.mn-survey-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.mn-survey-footer{flex:none;background:var(--ink);color:var(--on-ink-muted);padding:var(--space-5) var(--pad);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.mn-survey-footer .ds-wordmark .word{color:var(--on-ink)}
.mn-survey-footer a{color:var(--on-ink-muted);text-decoration:none}
.mn-survey-footer a:hover{color:var(--on-ink)}

@media (max-width:820px){
  .mn-survey-header .mn-bar{min-height:60px}
}
@media (max-width:520px){
  .mn-survey-scale{gap:6px}
  .mn-survey-scale button{padding:14px 0;font-size:19px}
  .mn-survey-hint{display:none}
  .mn-survey-opt{padding:13px 14px}
}