:root{--sa-primary:#5b87da;--sa-primary-dark:#4a73c7;--sa-primary-light:#7ba0e3;--sa-secondary:#1b2630;--sa-secondary-dark:#151e26;--sa-secondary-light:#2a3a47;--sa-additional:#424845;--sa-additional-dark:#363a37;--sa-additional-light:#5a5f5c;--sa-bg-dark:#0f1419;--sa-bg-card:#fff;--sa-bg-muted:#f8f9fa;--sa-text-primary:#1b2630;--sa-text-secondary:#424845;--sa-text-muted:#6b7280;--sa-text-inverted:#fff;--sa-text-accent:#5b87da;--sa-success:#10b981;--sa-warning:#f59e0b;--sa-error:#ef4444;--sa-info:#5b87da;--sa-border-light:#e5e7eb;--sa-border:#d1d5db;--sa-border-dark:#424845;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);--shadow-xl:0 20px 25px -5px rgba(0,0,0,0.1),0 10px 10px -5px rgba(0,0,0,0.04);--transition-fast:150ms ease-in-out;--transition-base:200ms ease-in-out;--transition-slow:300ms ease-in-out}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;background:var(--sa-bg-muted);color:var(--sa-text-primary);line-height:1.6;overflow-x:hidden}.login-wrapper{display:flex;min-height:100vh;width:100%}.login-hero{flex:1;background:linear-gradient(135deg,var(--sa-secondary) 0,var(--sa-secondary-dark) 100%);display:flex;flex-direction:column;justify-content:space-between;padding:3rem;position:relative;overflow:hidden}.login-hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('/sge/images/hero_image.png') center/cover no-repeat;opacity:.1;z-index:0}.hero-content{position:relative;z-index:1;max-width:500px}.hero-logo{max-width:200px;height:auto;margin-bottom:2rem;filter:drop-shadow(0 4px 6px rgba(0,0,0,0.1))}.hero-title{font-size:2.5rem;font-weight:700;color:var(--sa-text-inverted);margin-bottom:1rem;line-height:1.2}.hero-subtitle{font-size:1.125rem;color:rgba(255,255,255,0.9);line-height:1.6;font-weight:400}.hero-image-container{position:relative;z-index:1;margin-top:auto;padding-top:2rem}.hero-image{width:100%;max-width:500px;height:auto;opacity:.8}.login-form-section{flex:1;display:flex;align-items:center;justify-content:center;padding:2rem;background:var(--sa-bg-card)}.login-container{width:100%;max-width:420px;background:var(--sa-bg-card);padding:2.5rem;border-radius:16px;box-shadow:var(--shadow-xl)}.mobile-logo{display:none;margin-bottom:2rem;text-align:center}.mobile-logo-img{max-width:180px;height:auto}.login-header{text-align:center;margin-bottom:2rem}.login-header h2{font-size:1.875rem;font-weight:700;color:var(--sa-text-primary);margin-bottom:.5rem}.login-subtitle{color:var(--sa-text-muted);font-size:.9375rem}.login-form{width:100%}.form-group{margin-bottom:1.5rem}.form-label{display:block;font-size:.875rem;font-weight:600;color:var(--sa-text-primary);margin-bottom:.5rem}.input-wrapper{position:relative}.form-input{width:100%;padding:.875rem 1rem;font-size:1rem;color:var(--sa-text-primary);background:var(--sa-bg-card);border:2px solid var(--sa-border-light);border-radius:8px;transition:all var(--transition-base);outline:0}.form-input::placeholder{color:var(--sa-text-muted)}.form-input:focus{border-color:var(--sa-primary);box-shadow:0 0 0 3px rgba(91,135,218,0.1)}.form-input:hover:not(:focus){border-color:var(--sa-border)}.form-options{margin-bottom:1.5rem}.checkbox-label{display:flex;align-items:center;cursor:pointer;user-select:none}.checkbox-input{width:18px;height:18px;margin-right:.75rem;cursor:pointer;accent-color:var(--sa-primary)}.checkbox-text{font-size:.875rem;color:var(--sa-text-secondary)}.btn-login{width:100%;padding:.875rem 1.5rem;font-size:1rem;font-weight:600;color:var(--sa-text-inverted);background:var(--sa-primary);border:0;border-radius:8px;cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-md);position:relative;overflow:hidden}.btn-login::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);transition:left var(--transition-slow)}.btn-login:hover{background:var(--sa-primary-dark);box-shadow:var(--shadow-lg);transform:translateY(-1px)}.btn-login:hover::before{left:100%}.btn-login:active{transform:translateY(0);box-shadow:var(--shadow-md)}.btn-login:disabled{opacity:.6;cursor:not-allowed;transform:none}.login-footer{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--sa-border-light);text-align:center}.footer-text{font-size:.75rem;color:var(--sa-text-muted)}@media(max-width:1024px){.login-hero{padding:2rem}.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.login-container{padding:2rem}}@media(max-width:768px){.login-wrapper{flex-direction:column}.login-hero{min-height:40vh;padding:2rem 1.5rem}.hero-content{max-width:100%}.hero-logo{max-width:150px;margin-bottom:1rem}.hero-title{font-size:1.75rem}.hero-subtitle{font-size:.9375rem}.hero-image-container{display:none}.login-form-section{padding:1.5rem;min-height:60vh}.login-container{padding:1.5rem;box-shadow:var(--shadow-lg)}.mobile-logo{display:block}.login-header h2{font-size:1.5rem}}@media(max-width:480px){.login-hero{min-height:35vh;padding:1.5rem 1rem}.hero-logo{max-width:120px}.hero-title{font-size:1.5rem}.login-form-section{padding:1rem}.login-container{padding:1.25rem}.mobile-logo-img{max-width:140px}}.btn-login.loading{position:relative;color:transparent}.btn-login.loading::after{content:'';position:absolute;top:50%;left:50%;width:20px;height:20px;margin:-10px 0 0 -10px;border:2px solid var(--sa-text-inverted);border-top-color:transparent;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-message{margin-top:.5rem;padding:.75rem;background:rgba(239,68,68,0.1);border:1px solid var(--sa-error);border-radius:6px;color:var(--sa-error);font-size:.875rem;display:none}.error-message.show{display:block;animation:slideDown .3s ease-out}@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.form-input:focus-visible,.btn-login:focus-visible,.checkbox-input:focus-visible{outline:2px solid var(--sa-primary);outline-offset:2px}