#katercon-studio-v4 .ks-phone-fold{position:relative;width:min(100%,360px);height:580px;margin-inline:auto;perspective:1400px;isolation:isolate}
#katercon-studio-v4 .ks-phone-fold-exterior,#katercon-studio-v4 .ks-phone-fold-interior{position:absolute;inset:0;width:100%;height:100%;border-radius:var(--radius-panel);transform-style:preserve-3d}
#katercon-studio-v4 .ks-phone-fold-exterior{z-index:3;display:block;box-sizing:border-box;overflow:visible;appearance:none;border:1px solid color-mix(in srgb,var(--paper) 16%,transparent);background:linear-gradient(120deg,#1a1e20 0%,#565d5f 18%,#2a2f31 42%,#101314 72%,#444b4d 100%);box-shadow:inset 1px 1px 0 rgb(255 255 255 / .18),inset -2px -2px 0 rgb(0 0 0 / .45),0 24px 48px rgb(0 0 0 / .26);color:#eef1ef;text-align:center;cursor:pointer;backface-visibility:hidden;-webkit-backface-visibility:hidden;transform-origin:right center;transform:rotateY(0);transition:transform .72s cubic-bezier(.2,.72,.2,1),opacity .12s linear .53s;will-change:transform}
#katercon-studio-v4 .ks-phone-fold-exterior::before{content:"";position:absolute;inset:8px;border:1px solid rgb(255 255 255 / .1);border-radius:calc(var(--radius-panel) - 5px);background:linear-gradient(132deg,rgb(255 255 255 / .1),transparent 18% 65%,rgb(255 255 255 / .05));pointer-events:none}#katercon-studio-v4 .ks-phone-fold-exterior::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(104deg,transparent 0 20px,rgb(255 255 255 / .018) 21px 22px);mix-blend-mode:screen;opacity:.52;pointer-events:none}
#katercon-studio-v4 .ks-phone-fold-exterior:focus-visible{outline:2px solid var(--accent);outline-offset:var(--space-4)}#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{pointer-events:none;opacity:0;transform:rotateY(176deg)}
#katercon-studio-v4 .ks-phone-fold-hinge{position:absolute;z-index:4;top:34px;right:-3px;bottom:34px;width:7px;border-radius:99px;background:linear-gradient(90deg,#0b0e0f,#899091 47%,#171c1d 54%,#4d5657);box-shadow:1px 0 0 rgb(255 255 255 / .16),-2px 0 3px rgb(0 0 0 / .42);pointer-events:none}#katercon-studio-v4 .ks-phone-fold-hinge::before,#katercon-studio-v4 .ks-phone-fold-hinge::after{content:"";position:absolute;left:1px;width:5px;height:38px;border-radius:99px;background:linear-gradient(90deg,#242a2b,#a2a9a9,#242a2b)}#katercon-studio-v4 .ks-phone-fold-hinge::before{top:66px}#katercon-studio-v4 .ks-phone-fold-hinge::after{bottom:66px}
#katercon-studio-v4 .ks-phone-fold-cameras{position:absolute;top:20px;left:20px;z-index:2;display:grid;grid-template-columns:repeat(2,38px);grid-template-rows:repeat(4,18px);gap:3px 7px;width:max-content;padding:9px;border:1px solid rgb(255 255 255 / .16);border-radius:22px;background:linear-gradient(145deg,#5f6769,#222829 62%,#4a5051);box-shadow:inset 1px 1px 1px rgb(255 255 255 / .24),0 5px 12px rgb(0 0 0 / .3)}#katercon-studio-v4 .ks-phone-fold-cameras i{display:block;width:38px;height:38px;border:2px solid #161a1b;border-radius:50%;background:radial-gradient(circle at 34% 28%,#d6e9ed 0 5%,#7f969d 6% 9%,#0a0f12 10% 32%,#17252b 34% 51%,#010304 53% 66%,#415257 68% 74%,#111718 76%);box-shadow:inset 0 0 0 2px rgb(197 229 235 / .14),0 1px 1px rgb(255 255 255 / .15)}#katercon-studio-v4 .ks-phone-fold-cameras i:nth-child(1){grid-column:1;grid-row:1/span 2}#katercon-studio-v4 .ks-phone-fold-cameras i:nth-child(2){grid-column:2;grid-row:2/span 2}#katercon-studio-v4 .ks-phone-fold-cameras i:nth-child(3){grid-column:1;grid-row:3/span 2}#katercon-studio-v4 .ks-phone-fold-flash{grid-column:2;grid-row:1;align-self:center;justify-self:center;width:17px;height:17px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fffef0 0 20%,#e8dba0 42%,#968654 72%);box-shadow:0 0 8px rgb(255 244 179 / .34)}
#katercon-studio-v4 .ks-phone-fold-note{position:absolute;z-index:2;top:48%;left:50%;display:grid;place-items:center;width:calc(100% - 72px);min-height:142px;padding:var(--space-24);background:#d4ed99;color:var(--paper-ink);font-family:var(--font-display);font-size:var(--type-h3);font-weight:600;line-height:1.03;letter-spacing:var(--tracking-heading);box-shadow:4px 9px 16px rgb(0 0 0 / .32),inset 0 1px rgb(255 255 255 / .38);transform:translate(-50%,-50%) rotate(-4deg);transition:opacity .08s linear;isolation:isolate}#katercon-studio-v4 .ks-phone-fold-note::before{content:"";position:absolute;inset:0;background:linear-gradient(104deg,rgb(255 255 255 / .18),transparent 28% 72%,rgb(52 70 35 / .12));mix-blend-mode:soft-light;pointer-events:none}#katercon-studio-v4 .ks-phone-fold-note::after{content:"";position:absolute;top:-8px;left:50%;width:56px;height:16px;background:rgb(244 243 208 / .58);box-shadow:0 1px 1px rgb(0 0 0 / .12);transform:translateX(-50%) rotate(2deg);pointer-events:none}
#katercon-studio-v4 .ks-phone-fold-badge{position:absolute;z-index:2;right:30px;bottom:34px;width:76px;height:76px;background:linear-gradient(135deg,#cfe4ba,#4f5f4d 47%,#172018 78%);mask:url("assets/icon-katercon.4f21a89ab4c7.svg") center/contain no-repeat;-webkit-mask:url("assets/icon-katercon.4f21a89ab4c7.svg") center/contain no-repeat;filter:drop-shadow(0 1px 0 rgb(255 255 255 / .1));opacity:.88}
#katercon-studio-v4 .ks-phone-fold-interior{z-index:1;overflow:hidden;border:1px solid var(--line);background:var(--bg);box-shadow:0 24px 48px rgb(0 0 0 / .26);pointer-events:none}#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-interior{pointer-events:auto}
#katercon-studio-v4 .ks-phone-fold .ks-computer{width:100%;height:100%;max-width:none;min-height:0;overflow:hidden;border:0;border-radius:calc(var(--radius-panel) - 1px);background:var(--bg);box-sizing:border-box}#katercon-studio-v4 .ks-phone-fold .ks-pc-frame{height:100%;padding:var(--space-4);border-radius:calc(var(--radius-panel) - 1px);background:var(--bg);box-sizing:border-box}#katercon-studio-v4 .ks-phone-fold .ks-pc-screen{min-height:0;height:100%;overflow:hidden;border-radius:calc(var(--radius-panel) - 5px);background:var(--paper);color:var(--paper-ink)}#katercon-studio-v4 .ks-phone-fold .ks-mobile-top{position:relative;z-index:5;height:var(--space-64);padding:var(--space-12) 0 var(--space-8);background:var(--paper)}#katercon-studio-v4 .ks-phone-fold .ks-mobile-top>span{width:var(--space-48);height:var(--space-4);border-radius:var(--radius-control);background:var(--paper-ink)}#katercon-studio-v4 .ks-phone-fold-close{position:absolute;top:var(--space-4);right:var(--space-8);z-index:7;display:inline-flex;align-items:center;min-width:48px;min-height:48px;padding:0 var(--space-8);border:0;border-radius:var(--radius-control);background:transparent;color:var(--paper-ink)}
#katercon-studio-v4 .ks-phone-fold .ks-pc-workspace,#katercon-studio-v4 .ks-phone-fold .ks-computer:not([data-pc-state="home"]) .ks-pc-workspace{display:grid;grid-template-rows:minmax(0,1fr);min-height:0;padding:0;background:var(--paper)}#katercon-studio-v4 .ks-phone-fold .ks-desktop{height:100%;min-height:0;overflow:auto;background:var(--paper);color:var(--paper-ink);transition:opacity .24s ease}#katercon-studio-v4 .ks-phone-fold .ks-desktop[inert]{opacity:.17}#katercon-studio-v4 .ks-phone-fold .ks-copy-tabs{gap:var(--space-4);padding:var(--space-8) var(--space-12) 0;border-color:var(--line);background:var(--surface)}#katercon-studio-v4 .ks-phone-fold .ks-copy-tabs button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-4);min-height:48px;padding:0 var(--space-4);border:0;border-radius:var(--radius-control) var(--radius-control) 0 0;color:var(--muted);font-size:var(--type-small);line-height:var(--leading-heading)}#katercon-studio-v4 .ks-phone-fold .ks-copy-tabs button[aria-selected="true"]{background:var(--paper);color:var(--paper-ink)}#katercon-studio-v4 .ks-phone-tab-icon{display:grid;place-items:center;width:16px;height:16px}.ks-phone-tab-icon svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:var(--stroke);stroke-linecap:round;stroke-linejoin:round}#katercon-studio-v4 .ks-phone-fold .ks-copy-page{padding:var(--space-16);background:var(--paper)}#katercon-studio-v4 .ks-phone-fold .ks-copy-content{min-height:0;padding:var(--space-8) 0 var(--space-16)}#katercon-studio-v4 .ks-phone-fold .ks-copy-content h3{font-size:var(--type-h3);color:var(--paper-ink)}#katercon-studio-v4 .ks-phone-fold .ks-copy-content p{margin-top:var(--space-12);font-size:var(--type-body);line-height:var(--leading-body);color:var(--paper-ink)}#katercon-studio-v4 .ks-phone-fold .ks-copy-cta{margin-top:var(--space-16);color:var(--paper-ink);font-size:var(--type-small)}
#katercon-studio-v4 .ks-phone-fold .ks-dock{position:relative;z-index:6;display:flex;gap:var(--space-4);align-items:center;justify-content:center;max-width:100%;margin:0 auto var(--space-8);padding:var(--space-4);border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);box-sizing:border-box}#katercon-studio-v4 .ks-phone-fold .ks-dock-divider{height:var(--space-24);margin:0 var(--space-4);background:var(--line)}#katercon-studio-v4 .ks-phone-fold .ks-dock-app{display:grid;place-items:center;flex:0 0 48px;width:48px;height:48px;min-width:48px;min-height:48px;padding:0;border:0;border-radius:var(--radius-control);background:transparent;color:var(--ink)}#katercon-studio-v4 .ks-phone-fold .ks-dock-app:hover,#katercon-studio-v4 .ks-phone-fold .ks-dock-app[aria-expanded="true"]{background:var(--accent);color:var(--paper-ink)}#katercon-studio-v4 .ks-phone-fold .ks-dock-app svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:var(--stroke);stroke-linecap:round;stroke-linejoin:round}#katercon-studio-v4 .ks-phone-fold .ks-mobile-home{width:var(--space-96);height:var(--space-4);margin:var(--space-4) auto var(--space-8);border-radius:var(--radius-control);background:var(--paper-ink)}#katercon-studio-v4 .ks-phone-fold .ks-pc-window{z-index:8;background:var(--paper);color:var(--paper-ink);border:0}#katercon-studio-v4 .ks-phone-fold .ks-window-bar{min-height:48px;border-color:var(--line);background:var(--surface)}#katercon-studio-v4 .ks-phone-fold .ks-window-title{font-size:var(--type-small);color:var(--ink)}#katercon-studio-v4 .ks-phone-fold .ks-window-close{width:48px;min-height:48px;color:var(--ink);background:transparent;font-size:var(--type-small)}
#katercon-studio-v4 .ks-phone-fold :is(.ks-mail-app,.ks-calculator-app,.ks-phone-social-app,.ks-phone-photos-app){padding:var(--space-16);background:var(--paper);color:var(--paper-ink)}#katercon-studio-v4 .ks-phone-fold .ks-calculator-app input{color:var(--paper-ink);-webkit-text-fill-color:var(--paper-ink);border-color:var(--line)}#katercon-studio-v4 .ks-phone-fold .ks-calc-keys button{color:var(--paper-ink);background:var(--paper);border-color:var(--line)}#katercon-studio-v4 .ks-phone-fold .ks-error-screen{z-index:9;background:var(--paper);color:var(--paper-ink)}#katercon-studio-v4 .ks-phone-app-eyebrow{margin:0 0 var(--space-8);font-size:var(--type-eyebrow);line-height:var(--leading-heading);letter-spacing:.12em;color:var(--muted)}#katercon-studio-v4 .ks-phone-social-app h3,#katercon-studio-v4 .ks-phone-photos-app h3{margin:0;font-size:var(--type-h3);color:var(--paper-ink)}#katercon-studio-v4 .ks-phone-social-app>p:not(.ks-phone-app-eyebrow),#katercon-studio-v4 .ks-phone-photos-app>p{margin:var(--space-8) 0 var(--space-16);color:var(--paper-ink);font-size:var(--type-body);line-height:var(--leading-body)}#katercon-studio-v4 .ks-phone-channel{display:grid;grid-template-columns:48px 1fr auto;gap:var(--space-8);align-items:center;min-height:48px;padding:var(--space-8);border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper);color:var(--paper-ink);text-decoration:none}#katercon-studio-v4 .ks-phone-channel:hover{background:var(--accent)}#katercon-studio-v4 .ks-phone-channel-mark{display:grid;place-items:center;width:48px;height:48px;border-radius:var(--radius-control);background:var(--surface);color:var(--ink);font-size:var(--type-body)}.ks-phone-channel strong,.ks-phone-channel small{display:block}.ks-phone-channel strong{font-size:var(--type-body);font-weight:500}.ks-phone-channel small{margin-top:var(--space-4);color:var(--paper-ink);font-size:var(--type-small)}#katercon-studio-v4 .ks-phone-photo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-8)}#katercon-studio-v4 .ks-phone-photo-grid figure{margin:0;min-width:0}#katercon-studio-v4 .ks-phone-photo-grid img{display:block;width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:var(--radius-card);background:var(--surface)}#katercon-studio-v4 .ks-phone-photo-grid figcaption{margin-top:var(--space-4);font-size:var(--type-eyebrow);line-height:var(--leading-heading);color:var(--paper-ink)}
@media(max-width:375px){#katercon-studio-v4 .ks-phone-fold .ks-dock{gap:0;padding-inline:0}#katercon-studio-v4 .ks-phone-fold .ks-dock-divider{margin-inline:0}#katercon-studio-v4 .ks-phone-fold-note{width:calc(100% - 56px)}}

/* A real two-sided cover: the branded back is a face on a metal leaf, rather
   than a panel that fades away once it has started turning. */
#katercon-studio-v4 .ks-phone-fold{width:min(100%,320px);height:580px;perspective:1600px;perspective-origin:46% 47%;overflow:visible;transform-style:preserve-3d}
#katercon-studio-v4 .ks-phone-fold-exterior{z-index:4;inset:0;overflow:visible;border-color:rgb(226 234 229 / .18);border-radius:30px;background:linear-gradient(112deg,#111617 0%,#3c4545 14%,#151a1b 42%,#060909 76%,#30393a 100%);box-shadow:inset 1px 1px 0 rgb(255 255 255 / .17),inset -3px -2px 0 rgb(0 0 0 / .58),0 26px 50px rgb(0 0 0 / .32);backface-visibility:visible;-webkit-backface-visibility:visible;transform:translateZ(5px) rotateY(0deg);transform-origin:100% 50%;transition:transform 900ms cubic-bezier(.16,.78,.24,1),filter 900ms cubic-bezier(.16,.78,.24,1),box-shadow 900ms cubic-bezier(.16,.78,.24,1);will-change:transform,filter;isolation:isolate}
#katercon-studio-v4 .ks-phone-fold-exterior::before{z-index:0;inset:7px;border-radius:24px;background:linear-gradient(130deg,rgb(255 255 255 / .1),transparent 19% 67%,rgb(255 255 255 / .04));backface-visibility:hidden;-webkit-backface-visibility:hidden}
#katercon-studio-v4 .ks-phone-fold-exterior::after{z-index:0;inset:0;border-radius:30px;background:linear-gradient(106deg,rgb(255 255 255 / .09),transparent 16% 57%,rgb(0 0 0 / .28)),repeating-linear-gradient(105deg,transparent 0 22px,rgb(255 255 255 / .022) 23px 24px);mix-blend-mode:normal;opacity:.72;backface-visibility:hidden;-webkit-backface-visibility:hidden}
#katercon-studio-v4 .ks-phone-fold-cover-face{position:absolute;z-index:2;inset:0;display:block;border-radius:inherit;transform:translateZ(3px);transform-style:preserve-3d;backface-visibility:hidden;-webkit-backface-visibility:hidden;transition:filter 900ms cubic-bezier(.16,.78,.24,1);overflow:hidden}
#katercon-studio-v4 .ks-phone-fold-cover-edge{position:absolute;z-index:1;top:22px;bottom:22px;left:-5px;width:9px;border-radius:8px 0 0 8px;background:linear-gradient(90deg,#050809,#697171 48%,#151a1b);box-shadow:-1px 0 1px rgb(255 255 255 / .16),-2px 0 4px rgb(0 0 0 / .4);transform:rotateY(-90deg) translateZ(4px);transform-origin:right center;backface-visibility:visible;-webkit-backface-visibility:visible}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{pointer-events:none;opacity:1;transform:translateZ(5px) rotateY(-112deg);filter:brightness(.82) saturate(.78);box-shadow:inset 1px 1px 0 rgb(255 255 255 / .08),inset -3px -2px 0 rgb(0 0 0 / .64),18px 22px 42px rgb(0 0 0 / .35)}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-cover-face{filter:brightness(.66) saturate(.72)}
#katercon-studio-v4 .ks-phone-fold-hinge{z-index:6;right:-4px;top:30px;bottom:30px;width:9px;background:linear-gradient(90deg,#080b0c,#5b6667 22%,#aeb8b6 47%,#202829 54%,#050708);box-shadow:1px 0 0 rgb(255 255 255 / .17),-2px 0 4px rgb(0 0 0 / .54);transition:filter 900ms cubic-bezier(.16,.78,.24,1),box-shadow 900ms cubic-bezier(.16,.78,.24,1)}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-hinge{filter:brightness(1.16);box-shadow:2px 0 2px rgb(255 255 255 / .16),-4px 0 7px rgb(0 0 0 / .62)}
#katercon-studio-v4 .ks-phone-fold-badge{right:auto;bottom:68px;left:50%;width:40px;height:40px;background:#c2ccc7;opacity:.26;filter:none;transform:translateX(-50%);mix-blend-mode:screen;box-shadow:none}
#katercon-studio-v4 .ks-phone-fold-interior{z-index:2;border-color:rgb(237 240 234 / .15);border-radius:30px;box-shadow:0 28px 52px rgb(0 0 0 / .32),inset 0 0 0 1px rgb(255 255 255 / .07);transition:box-shadow 900ms cubic-bezier(.16,.78,.24,1)}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-interior{box-shadow:0 30px 56px rgb(0 0 0 / .4),inset 0 0 0 1px rgb(255 255 255 / .1)}
@media(max-width:375px){#katercon-studio-v4 .ks-phone-fold{width:min(100%,300px);perspective:1300px;perspective-origin:42% 48%}#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(-96deg)}}
@media(prefers-reduced-motion:reduce){#katercon-studio-v4 .ks-phone-fold,#katercon-studio-v4 .ks-phone-fold *{transition-duration:.01ms!important;animation-duration:.01ms!important}#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(-112deg);opacity:1}@media(max-width:375px){#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(-96deg)}}}

/* Folio case: the device stays on the left while its tactile cover opens right. */
#katercon-studio-v4 .ks-phone-fold{perspective:1650px;perspective-origin:52% 48%}
#katercon-studio-v4 .ks-phone-fold-exterior{z-index:4;transform-origin:100% 50%;background:linear-gradient(118deg,#171d1b 0%,#303a35 17%,#111715 48%,#202925 77%,#111714 100%);border-color:rgb(220 231 223 / .13);box-shadow:inset 1px 1px 0 rgb(255 255 255 / .1),inset -2px -2px 0 rgb(0 0 0 / .48),0 25px 48px rgb(0 0 0 / .32);transition:transform 900ms cubic-bezier(.16,.78,.24,1),filter 900ms cubic-bezier(.16,.78,.24,1),box-shadow 900ms cubic-bezier(.16,.78,.24,1)}
#katercon-studio-v4 .ks-phone-fold-exterior::before{inset:7px;border-radius:24px;background:linear-gradient(118deg,rgb(255 255 255 / .075),transparent 18% 72%,rgb(255 255 255 / .025)),repeating-linear-gradient(4deg,transparent 0 3px,rgb(255 255 255 / .012) 4px 5px)}
#katercon-studio-v4 .ks-phone-fold-exterior::after{background:linear-gradient(90deg,rgb(255 255 255 / .045),transparent 22% 78%,rgb(0 0 0 / .22));opacity:.84}
#katercon-studio-v4 .ks-phone-fold-cover-face{z-index:2;transform:translateZ(3px);background:linear-gradient(125deg,rgb(255 255 255 / .035),transparent 25% 75%,rgb(0 0 0 / .18));backface-visibility:hidden;-webkit-backface-visibility:hidden}
#katercon-studio-v4 .ks-phone-fold-cover-lining{position:absolute;z-index:2;inset:9px;display:block;overflow:hidden;border:1px solid rgb(225 233 226 / .11);border-radius:23px;background:linear-gradient(132deg,rgb(213 227 216 / .12),transparent 22% 72%,rgb(0 0 0 / .26)),repeating-linear-gradient(6deg,transparent 0 4px,rgb(255 255 255 / .015) 5px 6px),#202a25;box-shadow:inset 0 0 0 5px rgb(0 0 0 / .12),inset 1px 1px 0 rgb(255 255 255 / .05);transform:rotateY(180deg) translateZ(3px);backface-visibility:hidden;-webkit-backface-visibility:hidden}
#katercon-studio-v4 .ks-phone-fold-cover-lining::before{content:"";position:absolute;inset:28px 21px;border:1px solid rgb(218 230 220 / .12);border-radius:17px;box-shadow:inset 0 1px rgb(255 255 255 / .045)}
#katercon-studio-v4 .ks-phone-fold-cover-lining::after{content:"";position:absolute;top:13%;right:15%;width:46%;height:1px;background:linear-gradient(90deg,transparent,rgb(229 241 231 / .24),transparent);transform:rotate(-25deg);opacity:.65}
#katercon-studio-v4 .ks-phone-fold-cover-edge{z-index:3;top:20px;right:auto;bottom:20px;left:-5px;width:9px;border-radius:8px 0 0 8px;background:linear-gradient(90deg,#070a09,#657069 48%,#101614);box-shadow:-1px 0 1px rgb(255 255 255 / .13),-2px 0 4px rgb(0 0 0 / .4);transform:rotateY(-90deg) translateZ(4px);transform-origin:right center}
#katercon-studio-v4 .ks-phone-fold-wordmark{position:absolute;z-index:4;bottom:71px;left:calc(50% - 56px);display:block;width:112px;height:18.2px;transform:none;opacity:1;filter:none;mix-blend-mode:normal;background:rgb(255 255 255 / .21);mask:url("assets/katercon-logo.81951aa88e4b.svg") center/contain no-repeat;-webkit-mask:url("assets/katercon-logo.81951aa88e4b.svg") center/contain no-repeat;transition:none}
#katercon-studio-v4 .ks-phone-fold-wordmark img{display:none}
#katercon-studio-v4 .ks-phone-fold-hinge{z-index:6;top:30px;right:-4px;bottom:30px;left:auto;width:9px;background:linear-gradient(90deg,#070a09,#202925 20%,#a8b3ab 49%,#505b55 60%,#09100d);box-shadow:1px 0 0 rgb(255 255 255 / .13),-2px 0 4px rgb(0 0 0 / .58)}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{pointer-events:none;opacity:1;transform:translateZ(5px) rotateY(112deg);filter:brightness(.91) saturate(.8);box-shadow:inset 1px 1px 0 rgb(255 255 255 / .07),inset -3px -2px 0 rgb(0 0 0 / .58),15px 24px 42px rgb(0 0 0 / .35)}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-cover-face{filter:brightness(.72) saturate(.7)}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-hinge{filter:brightness(1.14);box-shadow:2px 0 2px rgb(255 255 255 / .15),-4px 0 7px rgb(0 0 0 / .62)}
@media(max-width:767px){#katercon-studio-v4 .ks-phone-fold{width:min(280px,100%);margin-inline:0 auto;perspective:1420px;perspective-origin:52% 48%}#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(98deg)}}
@media(max-width:767px){#katercon-studio-v4 .ks-phone-fold .ks-copy-tabs{display:grid;grid-template-columns:44px minmax(0,1fr) 60px;gap:2px;align-items:stretch;padding:var(--space-4) var(--space-8) 0}#katercon-studio-v4 .ks-phone-fold .ks-copy-tabs button{display:flex;flex-direction:column;gap:2px;justify-content:center;min-width:0;min-height:52px;padding:var(--space-4) 2px;font-size:var(--type-eyebrow);line-height:1;white-space:nowrap}#katercon-studio-v4 .ks-phone-fold .ks-copy-tabs button .ks-phone-tab-icon{width:16px;height:16px;flex:0 0 16px}#katercon-studio-v4 .ks-phone-fold .ks-copy-tabs button>span:last-child{min-width:0;white-space:nowrap}#katercon-studio-v4 .ks-phone-fold .ks-copy-content{padding:var(--space-24) 0 var(--space-16)}}
@media(min-width:768px){#katercon-studio-v4 .ks-phone-fold .ks-copy-content{padding:var(--space-32) 0 var(--space-16)}}
@media(max-width:375px){#katercon-studio-v4 .ks-phone-fold{width:min(250px,100%);perspective:1350px}#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(100deg)}#katercon-studio-v4 .ks-phone-fold .ks-copy-tabs{padding-inline:var(--space-8)}#katercon-studio-v4 .ks-phone-fold .ks-dock{width:calc(100% - 8px)}#katercon-studio-v4 .ks-phone-fold .ks-dock-app{flex:0 0 44px;width:44px;min-width:44px}}
@media(max-width:340px){#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(94deg)}}
@media(prefers-reduced-motion:reduce){#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(112deg);opacity:1}@media(max-width:767px){#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(98deg)}}@media(max-width:375px){#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(100deg)}}@media(max-width:340px){#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(94deg)}}}

/* The note rides on the outer cover until that cover is first closed. */
#katercon-studio-v4 .ks-phone-fold[data-fold-state="opening"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(112deg);filter:brightness(.91) saturate(.8);box-shadow:inset 1px 1px 0 rgb(255 255 255 / .07),inset -3px -2px 0 rgb(0 0 0 / .58),15px 24px 42px rgb(0 0 0 / .35)}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="opening"] .ks-phone-fold-cover-face{filter:brightness(.72) saturate(.7)}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="opening"] .ks-phone-fold-hinge{filter:brightness(1.14);box-shadow:2px 0 2px rgb(255 255 255 / .15),-4px 0 7px rgb(0 0 0 / .62)}
#katercon-studio-v4 .ks-phone-fold-note{backface-visibility:hidden;-webkit-backface-visibility:hidden}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="opening"] .ks-phone-fold-note{animation:none;opacity:1;transform:translate(-50%,-50%) rotate(-4deg)}
#katercon-studio-v4 .ks-phone-fold[data-note-used="true"] .ks-phone-fold-note{animation:none;opacity:0;transform:translate(-50%,-50%) rotate(-4deg);pointer-events:none}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-wordmark{backface-visibility:hidden;-webkit-backface-visibility:hidden}
@media(max-width:767px){#katercon-studio-v4 .ks-phone-fold[data-fold-state="opening"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(98deg)}}
@media(max-width:375px){#katercon-studio-v4 .ks-phone-fold[data-fold-state="opening"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(100deg)}}
@media(max-width:340px){#katercon-studio-v4 .ks-phone-fold[data-fold-state="opening"] .ks-phone-fold-exterior{transform:translateZ(5px) rotateY(94deg)}}

/* Keep the rotating leaf as a true 3D context. Filters and isolation on this
   wrapper flatten its two sides and let the exterior bleed through the lining. */
#katercon-studio-v4 .ks-phone-fold-exterior{isolation:auto;transform-style:preserve-3d;will-change:transform;filter:none}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="opening"] .ks-phone-fold-exterior,#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-exterior{filter:none}
#katercon-studio-v4 .ks-phone-fold[data-fold-state="opening"] .ks-phone-fold-cover-face,#katercon-studio-v4 .ks-phone-fold[data-fold-state="open"] .ks-phone-fold-cover-face{filter:none}
#katercon-studio-v4 .ks-phone-fold-cover-face{background:linear-gradient(125deg,rgb(255 255 255 / .03),transparent 28% 72%,rgb(0 0 0 / .16));transform-style:flat;backface-visibility:hidden;-webkit-backface-visibility:hidden}
#katercon-studio-v4 .ks-phone-fold-cover-lining{z-index:4;background-color:#202a25;backface-visibility:hidden;-webkit-backface-visibility:hidden}
#katercon-studio-v4 .ks-phone-fold-wordmark,#katercon-studio-v4 .ks-phone-fold-note{backface-visibility:hidden;-webkit-backface-visibility:hidden}
#katercon-studio-v4 .ks-phone-fold-wordmark{mix-blend-mode:normal}
#katercon-studio-v4 .ks-phone-fold-exterior{transition-timing-function:cubic-bezier(.35,.05,.25,1)}
#katercon-studio-v4 .ks-phone-fold-wordmark,#katercon-studio-v4 .ks-phone-fold-note{transition:none}
/* The logo is painted into the flat front face without a separately filtered
   image layer. Cull this whole surface by its real angle in either direction. */
#katercon-studio-v4 .ks-phone-fold[data-cover-front="hidden"] .ks-phone-fold-cover-face{visibility:hidden}