/* Quantum Cinema: "waves combine and cancel" section (interference.js). Light theme: every colour is a token from
   styles-cinema.css (.landing-pro.lp-cinema). Scoped under .landing-pro, prefix see-. */

.landing-pro .see-wrap { display: block; }
.landing-pro .see-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
/* first section after the tutor: give it real top room, and a clear scroll target */
#lp-wave.cin-section { padding-top: clamp(88px, 10vw, 144px); }

.landing-pro .see-out { font-size: 13px; color: var(--ink); font-variant-numeric: tabular-nums; }
.landing-pro .see-range { width: 100%; height: 32px; margin: 0; background: transparent; accent-color: var(--brand); cursor: pointer; }
.landing-pro .see-range:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 6px; }
.landing-pro .see-slider { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin: 6px 0 0; font-size: 13px; color: var(--ink-2); }
.landing-pro .see-btn {
  min-width: 44px; min-height: 44px; padding: 0 16px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--cin-panel); color: var(--ink);
  font: 600 14px/1 "JetBrains Mono", ui-monospace, Menlo, monospace; cursor: pointer;
  transition: border-color var(--cin-t-micro) var(--cin-ease), background var(--cin-t-micro) var(--cin-ease), transform var(--cin-t-micro) var(--cin-ease);
}
.landing-pro .see-btn:hover { border-color: var(--brand); background: var(--brand-50); }
.landing-pro .see-btn:active { transform: scale(0.97); }
.landing-pro .see-btn:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
.landing-pro .see-dial-axis { stroke: var(--cin-stroke-2); stroke-width: 1; }
.landing-pro .see-foot { margin: 6px 0 0; max-width: 78ch; font-size: 12.5px; line-height: 1.55; color: var(--muted); }

/* ---------------------------------------------------------------- waves */
.landing-pro .see-wpanel, .landing-pro .see-tpanel { padding: clamp(18px, 2.6vw, 32px); }
.landing-pro .see-tpanel { margin-top: 20px; }
.landing-pro .see-wgrid { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: clamp(16px, 3vw, 36px); align-items: start; }
.landing-pro .see-waves { display: block; width: 100%; height: auto; }
.landing-pro .see-w { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.landing-pro .see-w-a { stroke: var(--cin-blue); stroke-width: 2.4; }
.landing-pro .see-w-b { stroke: var(--cin-violet); stroke-width: 2.4; stroke-dasharray: 7 5; }
.landing-pro .see-w-sum { stroke: var(--ink); stroke-width: 3.2; transition: stroke var(--cin-t-comp) var(--cin-ease); }
.landing-pro .see-waves[data-kind="destructive"] .see-w-sum { stroke: var(--cin-good); }
.landing-pro .see-w-base { stroke: var(--cin-stroke-2); stroke-width: 1; }
.landing-pro .see-w-sep { stroke: var(--cin-stroke-2); stroke-width: 1; stroke-dasharray: 2 6; }
.landing-pro .see-legend { display: flex; flex-wrap: wrap; gap: 6px 22px; margin: 0 0 8px; padding: 0; list-style: none; font: 600 13px/1.3 "JetBrains Mono", ui-monospace, Menlo, monospace; color: var(--ink-2); }
.landing-pro .see-legend li { display: inline-flex; align-items: center; gap: 8px; }
.landing-pro .see-sw { display: inline-block; width: 26px; height: 0; border-top: 3px solid var(--cin-blue); }
.landing-pro .see-sw-b { border-top: 3px dashed var(--cin-violet); }
.landing-pro .see-sw-s { border-top-color: var(--ink); }
.landing-pro .see-w-note { color: var(--ink); }
.landing-pro .see-wside { display: grid; gap: 10px; justify-items: start; }
.landing-pro .see-phasor-box { display: block; width: 100%; max-width: 210px; height: auto; }
.landing-pro .see-pa { stroke-width: 2.6; stroke-linecap: round; }
.landing-pro .see-pa-a { stroke: var(--cin-blue); } .landing-pro .see-pa-b { stroke: var(--cin-violet); stroke-dasharray: 5 4; } .landing-pro .see-pa-s { stroke: var(--ink); stroke-width: 3.4; }
.landing-pro .see-peak { margin: 0; font-size: 13px; color: var(--ink); }
.landing-pro .see-kind { margin: 0; min-height: 4.2em; font-size: 14px; line-height: 1.45; color: var(--ink-2); }
.landing-pro .see-kind[data-kind="constructive"], .landing-pro .see-kind[data-kind="destructive"] { color: var(--ink); }
.landing-pro .see-wctl { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto; gap: 8px 28px; align-items: end; margin-top: 14px; padding-top: 16px; border-top: 1px solid var(--line); }
.landing-pro .see-slider-row { min-width: 0; }

/* twin */
.landing-pro .see-twin-head { max-width: 62ch; margin-bottom: 14px; }
.landing-pro .see-twin-lede { margin: 0; color: var(--ink-2); font-size: 16px; line-height: 1.6; }
.landing-pro .see-twin-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(16px, 3vw, 40px); align-items: center; }
.landing-pro .see-circuit { display: block; width: 100%; max-width: 420px; height: auto; }
.landing-pro .see-c-wire { stroke: var(--cin-stroke); stroke-width: 1.5; }
.landing-pro .see-c-box { fill: var(--brand-50); stroke: var(--cin-blue); stroke-width: 1.2; }
.landing-pro .see-c-box-phase { fill: #FBE8F0; stroke: var(--cin-magenta); }
.landing-pro .see-c-txt { font: 600 14px "JetBrains Mono", ui-monospace, Menlo, monospace; fill: var(--ink); }
.landing-pro .see-c-sub { font: 500 11px "JetBrains Mono", ui-monospace, Menlo, monospace; fill: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
.landing-pro .see-c-meter { fill: none; stroke: var(--ink-2); stroke-width: 1.6; stroke-linecap: round; }
.landing-pro .see-twin-out { margin: 10px 0 0; font-size: 13px; line-height: 1.6; color: var(--ink); white-space: pre-wrap; }
.landing-pro .see-plot { display: block; width: 100%; height: auto; }
.landing-pro .see-p-axis { stroke: var(--cin-stroke); stroke-width: 1; }
.landing-pro .see-p-tick { stroke: var(--cin-stroke); stroke-width: 1; }
.landing-pro .see-p-lbl { font: 500 12px "JetBrains Mono", ui-monospace, Menlo, monospace; fill: var(--ink-2); }
.landing-pro .see-p-curve { fill: none; stroke: var(--cin-blue); stroke-width: 2.4; stroke-linejoin: round; }
.landing-pro .see-dot { fill: var(--cin-magenta); stroke: var(--cin-panel); stroke-width: 2; }
.landing-pro .see-dot-drop { stroke: var(--cin-magenta); stroke-width: 1; stroke-dasharray: 3 4; }
.landing-pro .see-caption { margin: 18px 0 0; max-width: 62ch; font-size: clamp(16px, 1.5vw, 19px); line-height: 1.5; color: var(--ink); font-weight: 550; letter-spacing: -0.01em; }

/* ---------------------------------------------------------------- mobile: recomposed, not shrunk */
@media (max-width: 860px) {
  .landing-pro .see-wgrid, .landing-pro .see-twin-grid { grid-template-columns: minmax(0, 1fr); }
  .landing-pro .see-wctl { grid-template-columns: minmax(0, 1fr); }
  .landing-pro .see-wside { grid-template-columns: 120px minmax(0, 1fr); align-items: center; gap: 4px 14px; }
  .landing-pro .see-wside .cin-label { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .landing-pro .see-wpanel, .landing-pro .see-tpanel { padding: 14px; border-radius: 16px; }
  .landing-pro .see-range { height: 44px; }
  .landing-pro .see-btn { min-height: 44px; }
  .landing-pro .see-legend { font-size: 12px; gap: 4px 14px; }
  .landing-pro .see-w-a, .landing-pro .see-w-b { stroke-width: 4; }
  .landing-pro .see-w-sum { stroke-width: 5; }
  .landing-pro .see-p-lbl { font-size: 13px; }
  .landing-pro .see-twin-out { font-size: 12px; }
}