.landing {max-width:1200px;margin:0 auto;}
.landing-hero {display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:64px;align-items:center;padding:46px 0 66px;}
.landing-kicker {display:inline-flex;align-items:center;gap:9px;color:#38675d;font-size:12px;font-weight:750;letter-spacing:1px;}
.landing-kicker>span {font-size:20px;color:#527748;}
.landing-hero h1 {margin:24px 0;color:#163d38;font:750 clamp(42px,4.8vw,66px)/1.12 Inter,"Segoe UI",sans-serif;letter-spacing:-2.8px;}
.landing-hero h1>span {color:#4e7c66;}
.landing-hero__copy>p {max-width:510px;font-size:17px;line-height:1.85;color:#576b65;margin:0 0 28px;}
.landing-actions {display:flex;align-items:center;flex-wrap:wrap;gap:24px;}
.landing-actions .button {gap:28px;min-height:54px;padding:15px 22px;}
.landing-text-link {display:inline-flex;gap:12px;align-items:center;min-height:44px;color:#284e44;font-size:14px;font-weight:650;}
.landing-text-link:hover {text-decoration:underline;text-underline-offset:5px;}
.landing-scope {display:flex;align-items:center;gap:9px;margin-top:24px;font-size:13px;color:#64776e;}
.landing-scope>span {color:#386c50;}
.landing-preview {min-width:0;padding:24px;background:#eaf0de;border:1px solid #dde6ce;border-radius:26px;position:relative;}
.landing-preview__heading {display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:22px;color:#47604c;font-size:11px;letter-spacing:1.4px;font-weight:750;}
.landing-preview__heading>span:last-child {font-size:22px;letter-spacing:-1px;}
.landing-sample {height:328px;perspective:1200px;}
.landing-sample__inner {height:100%;position:relative;transform-style:preserve-3d;transition:transform .5s ease;}
.landing-sample.is-flipped .landing-sample__inner {transform:rotateY(180deg);}
.landing-sample__face {position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;gap:12px;padding:28px;background:#fffefa;border:1px solid #dde4d6;border-radius:18px;box-shadow:0 14px 26px #264d3612;backface-visibility:hidden;-webkit-backface-visibility:hidden;}
.landing .landing-sample .flash-front {transform:rotateY(0);}
.landing .landing-sample .flash-back {transform:rotateY(180deg);overflow:auto;}
.landing-sample__meta {display:flex;justify-content:space-between;gap:12px;color:#58705f;font-size:11px;font-weight:700;letter-spacing:1px;}
.landing-sample__meta>span:last-child {padding:4px 8px;background:#edf2df;border-radius:6px;letter-spacing:0;}
.landing-sample__hint {font-size:12px;color:#6a7b6c;}
.landing-sample h2 {margin:10px 0;font:700 clamp(30px,3.1vw,42px)/1.15 Inter,"Segoe UI",sans-serif;color:#1e4339;letter-spacing:-1.2px;}
.landing-sample p {margin:0;color:#55695d;font-size:14px;line-height:1.6;}
.landing-sample p span {color:#748171;}
.landing-sample .landing-sample__translation {font-size:13px;color:#68776b;}
.landing-flip {display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:44px;padding:12px 0 0;border:0;border-top:1px solid #e6ebdf;border-radius:0;background:transparent;color:#315c48;font:650 13px/1.45 Inter,"Segoe UI",sans-serif;text-align:left;cursor:pointer;}
.landing-flip>span:last-child {display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#edf2de;font-size:19px;}
.landing-flip:focus-visible {outline:3px solid #527748;outline-offset:5px;}
.landing-preview__foot {display:flex;align-items:center;gap:14px;margin-top:22px;}
.landing-preview__symbol {display:grid;place-items:center;width:40px;height:40px;flex:none;border-radius:12px;background:#d5e3ae;color:#365a3a;font-size:24px;}
.landing-preview__foot strong {font-size:14px;color:#375441;}
.landing-preview__foot p {margin:3px 0 0;font-size:12px;color:#62745e;}
.landing-section-heading {display:flex;justify-content:space-between;gap:32px;align-items:end;margin-bottom:28px;}
.landing-section-heading h2 {margin:10px 0 0;font-size:30px;letter-spacing:-1px;line-height:1.3;color:#193f36;}
.landing-section-heading>p {margin:0 0 2px;color:#68796e;font-size:14px;max-width:250px;}
.landing-path {padding:42px 0 56px;border-top:1px solid #dfe5d9;scroll-margin-top:90px;}
.landing-path__grid {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;}
.landing-path__grid article {padding:24px 0 0;border-top:1px solid #cfdac8;}
.landing-step {display:grid;place-items:center;width:38px;height:38px;border:1px solid #d9e3ce;background:#eff3e6;border-radius:12px;color:#476743;font-size:13px;font-weight:750;}
.landing-path h3 {margin:20px 0 10px;font-size:21px;color:#22483d;letter-spacing:-.4px;}
.landing-path p {margin:0 0 20px;color:#627369;font-size:15px;line-height:1.8;}
.landing-tag {font-size:12px;color:#4c6d50;font-weight:650;}
.landing-features {padding:24px 0 50px;}
.landing-feature-grid {display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:18px;}
.landing-feature {min-width:0;display:flex;flex-direction:column;align-items:flex-start;padding:28px;background:#fff;border:1px solid #e0e7db;border-radius:18px;}
.landing-feature__icon {display:grid;place-items:center;width:43px;height:43px;background:#edf2df;border-radius:13px;color:#4e704c;font-size:22px;font-weight:650;}
.landing-feature h3 {margin:28px 0 10px;font-size:22px;line-height:1.35;color:#22483d;letter-spacing:-.5px;}
.landing-feature p {margin:0;color:#627369;font-size:14px;line-height:1.8;}
.landing-feature a {display:flex;gap:20px;align-items:center;margin-top:24px;color:#dce9a4;font-size:14px;font-weight:650;min-height:44px;}
.landing-feature--dark {background:#193f36;border-color:#193f36;}
.landing-feature--dark h3 {color:#fffefa;}
.landing-feature--dark p {color:#ccdbcf;}
.landing-feature--dark .landing-feature__icon {color:#dce9a4;background:#ffffff13;}
.landing-final {display:flex;align-items:center;justify-content:space-between;gap:28px;padding:36px 40px;background:#eaf0dd;border:1px solid #dee6cf;border-radius:20px;}
.landing-final h2 {margin:10px 0 0;color:#234a3a;font-size:30px;line-height:1.35;letter-spacing:-.8px;}
.landing-final .button {flex:none;gap:20px;}
.landing-editorial-note {max-width:900px;margin:24px auto 8px;text-align:center;color:#647469;font-size:12px;line-height:1.8;}
@media(max-width:1000px) {.landing-hero {gap:32px;}.landing-hero h1 {font-size:48px;}.landing-preview {padding:20px;}.landing-sample__face {padding:22px;}.landing-feature {padding:22px;}.landing-feature h3 {font-size:20px;}}
@media(max-width:760px) {.landing-hero {grid-template-columns:1fr;gap:34px;padding:24px 0 42px;}.landing-hero__copy {max-width:570px;}.landing-hero h1 {font-size:clamp(42px,8vw,58px);}.landing-preview {max-width:540px;width:100%;}.landing-path__grid,.landing-feature-grid {grid-template-columns:1fr;gap:20px;}.landing-path__grid article {padding-top:20px;}.landing-path h3 {margin-top:14px;}.landing-section-heading {align-items:start;flex-direction:column;gap:14px;}.landing-section-heading>p {max-width:none;}.landing-feature {padding:26px;}.landing-feature h3 {margin-top:20px;}.landing-final {padding:28px;align-items:start;flex-direction:column;}.landing-final h2,.landing-section-heading h2 {font-size:27px;}.landing-kicker {font-size:10px;letter-spacing:.7px;}}
@media(max-width:400px) {.landing-hero h1 {font-size:39px;letter-spacing:-1.8px;}.landing-hero__copy>p {font-size:16px;}.landing-actions {gap:12px;}.landing-actions .button {width:100%;justify-content:space-between;}.landing-preview {padding:16px;}.landing-sample__face {padding:20px;}.landing-sample h2 {font-size:31px;}.landing-sample__meta {font-size:10px;}.landing-preview__heading {font-size:10px;letter-spacing:.6px;}}
@media(prefers-reduced-motion:reduce) {.landing-sample__inner {transition:none;}}
/* The sample reuses the flip controller, not the full-deck decoration. */
.landing .landing-sample .flash-front::after {content:none;}

/* First visit: one invitation, one real interaction, no wall of features. */
.landing-welcome .landing-hero {gap:54px;padding:28px 0 42px;align-items:center;}
.landing-welcome .landing-hero h1 {font-size:clamp(42px,4.65vw,64px);letter-spacing:-2.7px;line-height:1.12;margin:25px 0;}
.landing-welcome .landing-hero__copy>p {font-size:18px;max-width:490px;line-height:1.8;}
.landing-welcome .landing-start-button {min-width:190px;justify-content:space-between;min-height:54px;box-shadow:0 10px 24px #4162d92b;}
.landing-welcome .landing-actions {gap:18px;}
.welcome-reassurance {display:flex;flex-wrap:wrap;gap:9px 20px;margin-top:21px;color:#62718a;font-size:12px;}
.welcome-reassurance b {color:#5267c2;margin-right:4px;}
.welcome-mini-path {display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-top:35px;padding-top:23px;border-top:1px solid #e2e9f7;font-size:11px;color:#63718a;}
.welcome-mini-path span {display:flex;align-items:center;gap:7px;}
.welcome-mini-path b {display:grid;place-items:center;width:25px;height:25px;border-radius:9px;background:#edf1ff;color:#5468ad;font-size:10px;}
.welcome-mini-path i {font-style:normal;color:#a4b2d2;}
.landing-welcome .welcome-demo {padding:22px;background:radial-gradient(ellipse at 100% 100%,#fff4df,transparent 65%),linear-gradient(130deg,#eef6ff,#f4f0ff);border-color:#dce6fa;box-shadow:0 20px 65px #6889ce12;scroll-margin-top:90px;}
.welcome-demo .landing-preview__heading {margin-bottom:20px;letter-spacing:1px;}
.welcome-live-dot {display:inline-flex;align-items:center;gap:7px;}
.welcome-live-dot:before {content:'';width:7px;height:7px;background:#7885e7;border-radius:50%;box-shadow:0 0 0 4px #e2e9ff;}
.welcome-demo-title {display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.welcome-demo-title .eyebrow {font-size:9px;letter-spacing:1px;}
.welcome-demo-title h2 {margin:5px 0 0;font-size:21px;line-height:1.3;letter-spacing:-.6px;color:#354b76;}
.welcome-demo-number {display:grid;place-items:center;flex:none;width:42px;height:42px;background:#ffffffa8;border:1px solid #ffffff;border-radius:14px;color:#6677b4;font-size:22px;font-weight:750;}
.welcome-demo .landing-sample {height:260px;}
.welcome-demo .landing-sample__face {padding:22px;box-shadow:0 10px 24px #344d7a0a;}
.welcome-demo .landing-sample h2 {font-size:36px;letter-spacing:-1.3px;}
.welcome-demo .flash-back h2 {font-size:26px;margin:0;line-height:1.25;}
.welcome-demo .landing-sample .welcome-word-prompt {margin-top:9px;font-size:12px;}
.welcome-quiz {margin-top:16px;background:#ffffffb8;border:1px solid #dce5fa;border-radius:13px;overflow:hidden;}
.welcome-quiz summary {display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:54px;padding:13px 15px;list-style:none;color:#425b9a;font-size:13px;font-weight:700;cursor:pointer;}
.welcome-quiz summary::-webkit-details-marker {display:none;}
.welcome-quiz summary>span:first-child {display:flex;align-items:center;gap:10px;}
.welcome-quiz summary b {font-size:10px;color:#6279bd;}
.welcome-quiz[open] summary>span:last-child {transform:rotate(45deg);}
.welcome-quiz form {padding:0 15px 15px;}
.welcome-quiz fieldset {padding:0;margin:0;border:0;min-width:0;}
.welcome-quiz legend {padding:0;margin-bottom:12px;font-size:13px;font-weight:600;color:#405473;line-height:1.6;}
.welcome-options {display:grid;gap:7px;}
.welcome-options button {display:flex;align-items:center;gap:10px;width:100%;min-height:44px;padding:9px 12px;text-align:left;background:#fff;border:1px solid #c5d1ea;border-radius:9px;color:#485d83;font:600 12px/1.4 Inter,"Segoe UI",sans-serif;cursor:pointer;}
.welcome-options button>span {display:grid;place-items:center;width:23px;height:23px;background:#f1f4ff;border-radius:7px;color:#5268a9;font-size:10px;}
.welcome-options button:hover,.welcome-options button[aria-pressed=true] {background:#edf2ff;border-color:#7189dc;}
.welcome-feedback {margin:12px 0 0;font-size:12px;line-height:1.7;color:#8b5436;}
.welcome-feedback:empty {display:none;}
.welcome-feedback.is-correct {color:#4259a4;}
.welcome-demo-finish {width:100%;justify-content:space-between;margin-top:13px;}
.welcome-demo-finish[hidden] {display:none!important;}
.welcome-demo-note {margin:13px 0 0;text-align:center;color:#64738d;font-size:10px;}
.welcome-bridge {display:flex;align-items:center;gap:18px;margin-bottom:8px;padding:21px 25px;border:1px solid #e0e7f8;border-radius:17px;background:#fff;box-shadow:0 6px 26px #5e7ab306;}
.welcome-bridge-icon {display:grid;place-items:center;flex:none;width:42px;height:42px;border-radius:13px;background:#f0ebff;color:#7860ad;font-size:22px;}
.welcome-bridge p {margin:0;flex:1;font-size:13px;color:#64718a;line-height:1.7;}
.welcome-bridge strong {display:block;color:#40567f;font-size:14px;margin-bottom:2px;}
.welcome-bridge>a {display:inline-flex;align-items:center;gap:12px;min-height:44px;white-space:nowrap;font-size:12px;font-weight:700;color:#4763b3;}
.welcome-feature-stage {margin-top:20px;color:#6273a1;font-size:9px;letter-spacing:.7px;font-weight:750;}
.landing-welcome .landing-feature h3 {margin-top:10px;}
.landing-welcome .landing-final p {font-size:13px;color:#63718a;margin:12px 0 0;}
@media(prefers-reduced-motion:no-preference) {
  .landing-welcome .landing-hero__copy,.landing-welcome .welcome-demo {animation:welcome-enter .45s ease-out backwards;}
  .landing-welcome .welcome-demo {animation-delay:.08s;}
  @keyframes welcome-enter {from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
}
@media(max-width:1050px) {.landing-welcome .landing-hero {gap:30px;}.landing-welcome .landing-hero h1 {font-size:48px;}.landing-welcome .landing-actions {gap:14px;}.landing-welcome .landing-text-link {font-size:12px;}.welcome-mini-path {gap:6px;}}
@media(max-width:760px) {.landing-welcome .landing-hero {padding-top:6px;gap:30px;}.landing-welcome .landing-hero h1 {font-size:clamp(39px,8vw,58px);letter-spacing:-2px;}.landing-welcome .landing-hero__copy>p {font-size:16px;}.welcome-mini-path {margin-top:24px;padding-top:19px;}.welcome-bridge {flex-wrap:wrap;padding:20px;gap:12px;}.welcome-bridge p {flex-basis:calc(100% - 58px);}.welcome-bridge>a {margin-left:54px;}.welcome-demo {max-width:540px;}.landing-welcome .welcome-demo {padding:18px;}}
@media(max-width:380px) {.landing-welcome .landing-hero h1 {font-size:37px;}.welcome-mini-path {font-size:10px;}.welcome-mini-path b {width:21px;height:21px;}.welcome-reassurance {font-size:11px;}.welcome-demo .landing-sample__face {padding:18px;}.welcome-demo .landing-sample h2 {font-size:32px;}}