:root{font-family:Arial,Segoe UI,sans-serif;color-scheme:dark;--surface:#0B0C0F;--panel:#14161A;--input:#1d1e25;--border:#363845;--text:#ffffff;--muted:#a1a3b5;--soft:#363845;--primary:#0BC2BE;--primary-hover:#009996;--on-primary:#000;--link:#3b82f6;--glow:rgba(11,194,190,.1)}:root[data-theme=light]{color-scheme:light;--surface:#fff;--panel:#f6f6f6;--input:#fff;--border:#c0c2ce;--text:#0B0C0F;--muted:#363845;--soft:#a1a3b5;--on-primary:#fff}:root[lang=fa]{font-family:Yekan Bakh,Segoe UI,Tahoma,Arial,sans-serif}.language-select{max-width:100px;background:var(--input);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:7px 5px;font:inherit;font-size:13px}.language-select:focus-visible{outline:2px solid var(--primary);outline-offset:2px}*{box-sizing:border-box}body{margin:0;background:var(--surface);color:var(--text);font-size:16px;line-height:1.5}button,input,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}a{color:inherit;text-decoration:none}button{border:0;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible{outline:2px solid var(--primary);outline-offset:4px}input:focus{outline:none}input{min-width:0}p,h1,h2{margin:0}svg{flex-shrink:0}img{display:block;max-width:100%;height:auto}::selection{background:#002423;color:#0bc2be}.navbar{height:64px;position:fixed;inset:0 0 auto;z-index:10;background:var(--surface);border-bottom:1px solid var(--border)}.nav-inner{height:100%;display:flex;align-items:center;gap:24px;padding:0 12px}.brand{display:flex;align-items:center;gap:4px;padding-inline-end:24px;border-inline-end:1px solid var(--border);font-family:Arial,sans-serif;font-size:30px;font-weight:700}.brand img{width:28px;height:28px}.nav-links{display:flex;gap:32px}.nav-links a{font-size:14px}.nav-actions{margin-inline-start:auto;display:flex;align-items:center;gap:12px}.nav-auth{min-width:80px;height:40px!important;padding-inline:8px;font-size:14px;white-space:nowrap}.icon-button{display:flex;align-items:center;justify-content:center;background:transparent;color:var(--muted);border-radius:8px;padding:8px}.theme-button{width:40px;height:40px}.app-body{padding-top:64px}.auth-main{min-height:90vh;display:flex;align-items:center;justify-content:center;padding:24px 96px}.auth-section{max-width:1280px;width:100%;margin:0 auto}.auth-card{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-radius:16px;background:var(--panel);padding:6px}.auth-form-panel{grid-column:span 2;display:flex;align-items:center;justify-content:center;padding:30px 48px}.auth-form-inner{width:100%}.auth-form{display:flex;flex-direction:column;gap:12px;width:100%}.auth-banner{grid-column:span 3}.auth-banner img{border-radius:16px;width:100%;height:auto}.english-hero{aspect-ratio:948/905;position:relative;overflow:hidden;border-radius:16px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:48px;background:radial-gradient(ellipse at 50% 35%,#083e40,#031d22 35%,#020a0d 74%);color:#fff}.english-hero img.hero-mark{width:38%;height:auto;border-radius:0;filter:drop-shadow(0 18px 40px rgba(11,194,190,.26))}.hero-copy{text-align:center}.hero-copy span{font-size:clamp(32px,4vw,56px);font-weight:700;letter-spacing:-.03em}.hero-copy p{margin-top:8px;font-size:clamp(16px,2vw,24px);color:#a1c7ca}.auth-title{font-weight:700;font-size:30px;line-height:36px;background:linear-gradient(to bottom,var(--text) 50%,var(--soft));background-clip:text;-webkit-background-clip:text;color:transparent;display:inline-block}.intro{color:var(--muted);font-size:16px;line-height:1.7}.identity-inline{font-family:Arial,sans-serif;font-size:14px;font-weight:700;overflow-wrap:anywhere}.field{width:100%}.input-label{display:block;color:var(--text);font-size:14px;margin-bottom:2px}.input-solid{position:relative;display:flex;align-items:center;justify-content:space-between;width:100%;height:48px;padding:4px 8px;border-radius:8px;background:var(--input);border:1px solid var(--border);transition:border-color .15s,box-shadow .15s}.input-solid:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px #0bc2be1a}.input-solid.error{border-color:#f78791;box-shadow:0 0 0 3px #f787911a}.input-solid input{display:block;flex:1;width:100%;height:100%;color:var(--text);background:transparent;border:0;padding:0;font-family:Arial,sans-serif;font-size:18px;line-height:1.5}.input-solid input::placeholder{font-size:14px;color:#676a83}.input-error{display:block;color:#f55c69;font-size:12px;padding-top:4px}.input-hint{display:block;color:var(--muted);font-size:12px;padding-top:4px;line-height:1.7}.password-eye{margin-inline-start:4px;padding:4px}.help-link{color:var(--link);font-size:14px;font-weight:500}.otp-help{display:inline-block;padding-top:8px}.referrer-toggle{display:flex;align-items:center;gap:4px;background:none;color:var(--text);padding:0;font-size:14px;line-height:24px}.referrer-toggle span{color:var(--muted)}.referrer-toggle svg{margin-inline-start:6px;transition:transform .2s}.referrer-toggle svg.expanded{transform:rotate(180deg)}#referrer-field{margin-top:3px}.code-input{text-align:center;letter-spacing:.65em;min-width:0;padding-inline-start:.65em!important}.code-timer{width:80px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--glow);border-radius:8px;color:var(--primary);flex-shrink:0;margin-inline-start:4px}.code-timer span{font:500 14px Arial,sans-serif}.code-timer button{padding:0;background:transparent;color:var(--primary);font-size:12px;font-weight:700}.alert{width:100%;padding:12px;display:flex;align-items:flex-start;gap:8px;border-radius:8px;font-size:13px;line-height:20px;font-weight:500}.alert svg{margin-top:2px}.alert.warning{background:#a162071a;color:#fefce8}.alert.warning svg{color:#ca8a04}.alert.info{background:#1d4ed81a;color:#eff6ff}.alert.info svg{color:#2563eb}.alert.error{background:#a80b1826;color:#feeced}.alert.error svg{color:#f55c69}.alert.success{background:#0899811a;color:#ddfdf8}.alert.success svg{color:#089981}[data-theme=light] .alert.warning{background:#facc151a;color:#422006}[data-theme=light] .alert.info{background:#60a5fa1a;color:#172554}[data-theme=light] .alert.error{background:#f55c691a;color:#6e0710}[data-theme=light] .alert.success{color:#033f35}.auth-actions{padding-top:24px;display:flex;flex-direction:column;gap:8px}.btn-solid-primary,.btn-outline-primary,.btn-glow-primary,.btn-text-secondary{height:48px;padding:0 12px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-weight:700;text-align:center;transition:background .15s,transform .15s;flex-shrink:0}.btn-solid-primary{background:var(--primary);color:var(--on-primary)}.btn-solid-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-outline-primary{border:2px solid var(--primary);background:transparent;color:var(--primary)}.btn-outline-primary:hover:not(:disabled){background:var(--primary);color:var(--on-primary)}.btn-glow-primary{background:var(--glow);color:var(--primary)}.btn-glow-primary:hover{background:#0bc2be33}.btn-text-secondary{background:transparent;color:#94a0b8}.btn-text-secondary:hover{background:#94a0b81a}.btn-solid-primary:active:not(:disabled),.btn-outline-primary:active:not(:disabled){transform:scale(.98)}.loading{position:relative;padding-inline-end:36px}.loading:before{content:"";width:16px;height:16px;border:2px solid currentColor;border-left-color:transparent;border-right-color:transparent;border-radius:50%;position:absolute;inset-inline-end:12px;animation:spin .5s linear infinite}.auth-footer{padding:8px 0;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted)}.primary-link{color:var(--primary);font-weight:700}.signup-note{font-size:13px;line-height:1.7;padding:8px 0}.content-page{padding:48px 24px;max-width:1100px;margin:auto}.content-card{background:var(--panel);border-radius:16px;padding:32px;display:flex;flex-direction:column;gap:20px}.content-card h1{font-size:28px}.content-card h2{font-size:18px}.content-card p{color:var(--muted);line-height:1.9}.profile-heading{display:flex;justify-content:space-between;gap:16px;align-items:center}.profile-badge{display:inline-flex;align-items:center;gap:7px;color:var(--primary);font-size:13px}.profile-badge:before{content:"";width:6px;height:6px;background:var(--primary);border-radius:50%}.profile-grid{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0 32px}.profile-row{border-bottom:1px solid var(--border);padding:18px 0;min-width:0}.profile-row dt{font-size:13px;color:var(--muted);margin-bottom:8px}.profile-row dd{margin:0;font-size:16px;overflow-wrap:anywhere}.profile-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.profile-actions>*{min-width:160px}.help-sections{display:flex;flex-direction:column;gap:24px}.help-sections section{scroll-margin-top:90px}.help-sections h2{margin-bottom:8px}.help-sections ul{padding-inline-start:24px;line-height:1.9;color:var(--muted)}@keyframes spin{to{transform:rotate(360deg)}}@media (min-width:1536px){.auth-main{padding-inline:0}}@media (max-width:1199px){.auth-main{padding-inline:40px}.auth-form-panel{padding:28px}.auth-title{font-size:27px}}@media (max-width:900px){.auth-main{padding:24px}.auth-form-panel{padding:26px 20px}.auth-card{grid-template-columns:repeat(2,minmax(0,1fr))}.auth-form-panel,.auth-banner{grid-column:span 1}.auth-banner{align-self:center}.nav-links,.nav-inner{gap:20px}.brand{font-size:26px;padding-inline-end:18px}}@media (max-width:680px){.nav-links{display:none}.brand{font-size:24px;border:0;padding-inline-end:0}.nav-inner{gap:12px}.nav-actions{gap:8px}.nav-auth{width:64px}.auth-main{min-height:calc(100vh - 64px);padding:24px 16px;align-items:flex-start}.auth-section{max-width:480px}.auth-card{display:block}.auth-form-panel{padding:28px 20px}.auth-banner{display:none}.auth-title{font-size:28px}.content-page{padding:24px 16px}.content-card{padding:24px 20px}.profile-grid{grid-template-columns:1fr}.profile-heading{align-items:flex-start;flex-direction:column}.profile-actions>*{width:100%}}@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media (max-width:400px){.brand span{display:none}.nav-actions{gap:4px}.language-select{max-width:82px}.nav-auth{min-width:60px}.theme-button{width:32px}}