.ph-auth-split{grid-template-columns:2fr 3fr}.signup-card{position:relative;width:100%;max-width:560px;background:var(--ph-glass-bg);border:1px solid var(--ph-glass-border);border-radius:24px;padding:2.5rem;backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);box-shadow:var(--ph-shadow-glass)}.signup-card:before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(135deg,rgba(92,198,195,.25),transparent 50%,rgba(139,111,168,.25));-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);mask-composite:exclude;pointer-events:none}.signup-header{text-align:center;margin-bottom:2rem}.signup-header h1{font-family:var(--ph-font-display);font-size:2rem;font-weight:400;margin-bottom:.5rem}.signup-header p{font-size:.9rem;color:var(--ph-text-muted)}.form-group{margin-bottom:1.25rem}.form-label{display:block;font-size:.8rem;font-weight:500;color:var(--ph-text-muted);margin-bottom:.5rem}.form-label .required{color:var(--ph-error);margin-left:.25rem}.form-input{width:100%;padding:.875rem 1rem;font-family:var(--ph-font-body);font-size:.9rem;color:var(--ph-text);background:#ffffff08;border:1px solid var(--ph-border);border-radius:12px;outline:none;transition:all .3s ease}.form-input:focus{border-color:var(--ph-mint);box-shadow:0 0 0 3px #5cc6c31a}.form-input::placeholder{color:var(--ph-text-subtle)}.form-input.error{border-color:var(--ph-error)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.form-error{font-size:.75rem;color:var(--ph-error);margin-top:.5rem;display:none}.form-error.show{display:block}.form-success{font-size:.75rem;color:var(--ph-success);margin-top:.5rem;display:none}.form-success.show{display:block}.input-with-btn{display:flex;gap:.5rem}.input-with-btn .form-input{flex:1}.check-btn{padding:0 1rem;font-family:var(--ph-font-body);font-size:.8rem;font-weight:500;color:var(--ph-mint);background:transparent;border:1px solid var(--ph-mint);border-radius:12px;cursor:pointer;transition:all .3s ease;white-space:nowrap}.check-btn:hover:not(:disabled){background:#5cc6c31a}.check-btn:disabled{opacity:.5;cursor:not-allowed}.check-btn.checked{color:var(--ph-success);border-color:var(--ph-success);background:#10b9811a}.password-strength{height:4px;background:var(--ph-border);border-radius:2px;margin-top:.5rem;overflow:hidden}.password-strength-bar{height:100%;width:0;border-radius:2px;transition:all .3s ease}.password-strength-bar.weak{width:33%;background:var(--ph-error)}.password-strength-bar.medium{width:66%;background:#f59e0b}.password-strength-bar.strong{width:100%;background:var(--ph-success)}.terms-section{margin:1.5rem 0;padding:1rem;background:#ffffff05;border-radius:12px}.terms-check{display:flex;align-items:flex-start;gap:.75rem;cursor:pointer}.terms-check input[type=checkbox]{width:18px;height:18px;margin-top:2px;accent-color:var(--ph-mint);cursor:pointer}.terms-check label{font-size:.85rem;color:var(--ph-text-muted);line-height:1.5;cursor:pointer}.terms-check a{color:var(--ph-mint);text-decoration:none}.terms-check a:hover{text-decoration:underline}.submit-btn{width:100%;padding:1rem;font-family:var(--ph-font-body);font-size:.95rem;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--ph-mint),var(--ph-purple));border:none;border-radius:12px;cursor:pointer;transition:all .3s ease}.submit-btn:hover:not(:disabled){box-shadow:0 8px 25px -8px var(--ph-mint-glow);transform:translateY(-2px)}.submit-btn:disabled{opacity:.5;cursor:not-allowed}.submit-btn.loading{position:relative;color:transparent}.submit-btn.loading:after{content:"";position:absolute;width:20px;height:20px;top:50%;left:50%;margin:-10px 0 0 -10px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.signup-footer{text-align:center;margin-top:1.5rem;font-size:.85rem;color:var(--ph-text-muted)}.signup-footer a{color:var(--ph-mint);text-decoration:none;font-weight:500}.signup-footer a:hover{text-decoration:underline}.alert{padding:1rem;border-radius:12px;margin-bottom:1.5rem;font-size:.85rem;display:none}.alert.error{background:#f871711a;border:1px solid rgba(248,113,113,.2);color:var(--ph-error)}.alert.success{background:#10b9811a;border:1px solid rgba(16,185,129,.2);color:var(--ph-success)}.alert.show{display:block}@media(max-width:640px){.signup-card{padding:1.5rem}.form-row{grid-template-columns:1fr}}.modal-overlay{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:#000c;backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:all .3s ease}.modal-overlay.show{opacity:1;visibility:visible}.modal-container{width:90%;max-width:700px;max-height:80vh;background:var(--ph-bg);border:1px solid var(--ph-border);border-radius:20px;overflow:hidden;transform:translateY(20px) scale(.95);transition:transform .3s ease}.modal-overlay.show .modal-container{transform:translateY(0) scale(1)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:1.25rem 1.5rem;border-bottom:1px solid var(--ph-border)}.modal-header h2{font-size:1.1rem;font-weight:600}.modal-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--ph-text-muted);background:transparent;border:none;border-radius:8px;cursor:pointer;transition:all .2s ease}.modal-close:hover{color:var(--ph-text);background:var(--ph-bg-surface-hover)}.modal-body{padding:1.5rem;max-height:calc(80vh - 140px);overflow-y:auto;line-height:1.8}.modal-body h3{font-size:1rem;font-weight:600;margin:1.5rem 0 .75rem;color:var(--ph-mint)}.modal-body h3:first-child{margin-top:0}.modal-body p{font-size:.85rem;color:var(--ph-text-muted);margin-bottom:.75rem}.modal-body ul{margin:.5rem 0 1rem 1.25rem;font-size:.85rem;color:var(--ph-text-muted)}.modal-body li{margin-bottom:.4rem}.modal-body table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.8rem}.modal-body th,.modal-body td{padding:.6rem;text-align:left;border:1px solid var(--ph-border)}.modal-body th{background:var(--ph-bg-surface);color:var(--ph-text);font-weight:500}.modal-body td{color:var(--ph-text-muted)}.modal-footer{padding:1rem 1.5rem;border-top:1px solid var(--ph-border);text-align:right}.modal-footer button{padding:.6rem 1.5rem;font-family:var(--ph-font-body);font-size:.85rem;font-weight:500;color:#fff;background:linear-gradient(135deg,var(--ph-mint),var(--ph-purple));border:none;border-radius:8px;cursor:pointer;transition:all .2s ease}.modal-footer button:hover{box-shadow:0 4px 15px -3px var(--ph-mint-glow)}