:root{--color-primary: #ff8a1f;--color-primary-hover: #ff9d45;--color-accent: #ffc83d;--gradient-brand: linear-gradient(135deg, #ff8a1f 0%, #ffc83d 100%);--color-bg: #0a1220;--color-surface: #111c2e;--color-surface-2: #172640;--color-border: rgba(255, 255, 255, .08);--color-overlay: rgba(10, 18, 32, .72);--color-text: #f2f5fa;--color-text-muted: #8ea0b8;--color-text-on-primary: #1a1204;--color-success: #2ecc71;--color-danger: #ff5a5f;--color-info: #3b9eff;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 6px 18px rgba(0, 0, 0, .35);--shadow-glow: 0 0 24px rgba(255, 138, 31, .25);--container-max: 1200px;--page-padding: 16px;--header-height: 60px;--bottom-nav-height: 64px;--transition-fast: .15s ease;--transition-base: .25s ease;--z-header: 100;--z-bottom-nav: 100;--z-modal: 1000}@media(min-width:768px){:root{--page-padding: 24px;--header-height: 72px}}@media(min-width:1024px){:root{--page-padding: 32px}}:root{--font-family: "Kantumruy Pro", "Noto Sans Khmer", system-ui, -apple-system, "Segoe UI", sans-serif;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 2rem;--leading-tight: 1.4;--leading-normal: 1.7}body{font-family:var(--font-family);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text)}h1,h2,h3,h4{line-height:var(--leading-tight);font-weight:600}h1{font-size:var(--text-2xl)}h2{font-size:var(--text-xl)}h3{font-size:var(--text-lg)}@media(min-width:768px){h1{font-size:var(--text-3xl)}h2{font-size:var(--text-2xl)}}html[lang=en]{--leading-normal: 1.55}*,*:before,*:after{box-sizing:border-box}*{margin:0;-webkit-tap-highlight-color:transparent}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}html:has(dialog[open]){overflow:hidden}body{min-height:100vh;background:var(--color-bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}img,picture,video,svg{display:block;max-width:100%}button,input,select,textarea{font:inherit;color:inherit}button{background:none;border:0;cursor:pointer}a{color:inherit;text-decoration:none}ul,ol{list-style:none;padding:0}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.kh-control{display:flex;align-items:center;gap:var(--space-2);min-height:48px;padding-inline:var(--space-4);background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.kh-control:hover{border-color:#ffffff2e}.kh-control:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px #ff8a1f26}.kh-control.is-invalid{border-color:var(--color-danger)}.kh-control.is-invalid:focus-within{box-shadow:0 0 0 3px #ff5a5f2e}.kh-control.is-disabled{opacity:.5;pointer-events:none}.kh-control__input{flex:1;min-width:0;align-self:stretch;background:transparent;border:0;outline:0;font-size:1rem;color:var(--color-text)}.kh-control__input::placeholder{color:var(--color-text-muted);opacity:.8}.kh-control__affix{flex-shrink:0;color:var(--color-text-muted);font-weight:500;white-space:nowrap}.kh-control--area{flex-direction:column;align-items:stretch;gap:var(--space-1);padding-block:var(--space-3)}.kh-textarea{flex:none;width:100%;resize:none;overflow:hidden;line-height:var(--leading-normal)}.kh-counter{align-self:flex-end;font-size:var(--text-xs);color:var(--color-text-muted)}.kh-select{position:relative;padding-inline-end:var(--space-3)}.kh-select select.kh-control__input{appearance:none;-webkit-appearance:none;cursor:pointer;padding-inline-end:var(--space-6)}.kh-select select.kh-control__input.is-placeholder{color:var(--color-text-muted)}.kh-select select.kh-control__input option{background:var(--color-surface);color:var(--color-text)}.kh-select__chevron{position:absolute;right:var(--space-3);color:var(--color-text-muted);pointer-events:none}.kh-upload{display:grid;gap:var(--space-2)}.kh-upload__grid{display:grid;gap:var(--space-2);grid-template-columns:repeat(3,minmax(0,1fr))}.kh-upload__grid--video{grid-template-columns:repeat(2,minmax(0,1fr))}@media(min-width:768px){.kh-upload__grid{gap:var(--space-3)}.kh-upload__grid--image{grid-template-columns:repeat(6,minmax(0,1fr))}.kh-upload__grid--video{grid-template-columns:repeat(2,minmax(0,240px))}}.kh-tile{position:relative;aspect-ratio:1;overflow:hidden;background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-md)}.kh-tile img,.kh-tile video{width:100%;height:100%;object-fit:cover}.kh-tile--video{aspect-ratio:16/10}.kh-tile--add{border:1.5px dashed rgba(255,255,255,.28);background:transparent;color:var(--color-text-muted);transition:border-color var(--transition-fast),color var(--transition-fast),background var(--transition-fast)}.kh-tile--add:hover,.kh-tile--add:focus-within{border-color:var(--color-primary);color:var(--color-primary);background:#ff8a1f0f}.kh-tile__hit{position:absolute;inset:0;display:grid;place-items:center;align-content:center;gap:var(--space-1);padding:var(--space-2);text-align:center;font-size:var(--text-xs);line-height:1.5;cursor:pointer}.kh-upload.is-invalid .kh-tile--add{border-color:var(--color-danger)}.kh-tile__remove{position:absolute;top:6px;right:6px;z-index:2;display:grid;place-items:center;width:30px;height:30px;border-radius:var(--radius-full);background:var(--color-overlay);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);color:#fff;transition:background var(--transition-fast)}.kh-tile__remove:before{content:"";position:absolute;inset:-8px}.kh-tile__remove:hover{background:var(--color-danger)}.kh-tile__badge{position:absolute;left:6px;bottom:6px}.kh-tile__play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:40px;height:40px;border-radius:var(--radius-full);background:var(--color-overlay);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);color:#fff;pointer-events:none}.kh-tile__meta{position:absolute;inset:auto 0 0;padding:var(--space-5) var(--space-2) var(--space-1);font-size:var(--text-xs);color:#fff;background:linear-gradient(transparent,#000000a6)}.kh-upload__foot{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-3)}.kh-upload__error{font-size:var(--text-xs);color:var(--color-danger)}.kh-upload__foot .kh-counter{margin-left:auto}.kh-control.is-invalid,.kh-upload.is-invalid{scroll-margin-top:96px}.auth-page{display:block;width:100%;max-width:440px;margin-inline:auto}.auth{display:grid;gap:var(--space-6)}.auth__intro{display:grid;justify-items:center;gap:var(--space-2);text-align:center}.auth__intro img{height:56px;width:auto;margin-bottom:var(--space-2)}.auth__intro p{max-width:34ch;font-size:var(--text-sm)}.auth__title{font-size:var(--text-xl)}.auth__form{display:grid;gap:var(--space-5)}.auth__footer{display:grid;justify-items:center;gap:var(--space-3);font-size:var(--text-sm)}.auth__link{display:inline-flex;align-items:center;min-height:44px;font-size:var(--text-sm);font-weight:500;color:var(--color-primary)}.auth__link:hover{color:var(--color-primary-hover)}@media(min-width:768px){.auth-page{margin-block:auto}.auth{padding:var(--space-10);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md)}}.auth-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-2)}.auth-steps li{height:4px;border-radius:var(--radius-full);background:var(--color-surface-2);transition:background var(--transition-base)}.auth-steps li.is-on{background:var(--gradient-brand)}.auth-steps__label{font-size:var(--text-xs);text-align:center}.auth-success{display:grid;place-items:center;width:72px;height:72px;margin-inline:auto;border-radius:var(--radius-full);background:#2ecc7124;color:var(--color-success)}.form-stack{display:grid;gap:var(--space-5)}.kh-notice{padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--text-sm);background:#2ecc711f;border:1px solid rgba(46,204,113,.4);color:var(--color-success)}.kh-notice.is-error{background:#ff5a5f1f;border-color:#ff5a5f66;color:var(--color-danger)}.container{width:100%;max-width:var(--container-max);margin-inline:auto;padding-inline:var(--page-padding)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.text-muted{color:var(--color-text-muted)}.hide-on-mobile{display:none}.hide-on-desktop{display:initial}@media(min-width:768px){.hide-on-mobile{display:initial}.hide-on-desktop{display:none}}.kh-icon-chip{display:grid;place-items:center;flex-shrink:0;width:36px;height:36px;border-radius:var(--radius-md);background:#ff8a1f1f;color:var(--color-primary)}.page{display:grid;gap:var(--space-5);padding-block:var(--space-4) var(--space-8)}.page>*{min-width:0}.page--narrow{max-width:760px}.page__title{font-size:var(--text-2xl)}.page__lead{max-width:60ch;color:var(--color-text-muted)}@media(min-width:768px){.page{padding-block:var(--space-6) var(--space-10)}}.prose{display:grid;gap:var(--space-3);line-height:var(--leading-normal)}.prose h2{margin-top:var(--space-4);font-size:var(--text-lg)}.prose p,.prose li{color:var(--color-text-muted)}.prose ul{list-style:disc;padding-left:var(--space-5);display:grid;gap:var(--space-1)}.text-link{color:var(--color-primary);font-weight:500}.text-link:hover{color:var(--color-primary-hover)}