:root{--color-primary: #18181b;--color-primary-dark: #000000;--color-primary-light: #d4d4d8;--color-accent: #84cc16;--color-accent-dark: #65a30d;--color-accent-bright: #a3e635;--color-bg: #fafafa;--color-surface: #ffffff;--color-text: #18181b;--color-text-muted: #71717a;--color-border: #e4e4e7;--color-error: #dc2626;--color-success: #16a34a;--gradient-primary: linear-gradient(135deg, #27272a 0%, #09090b 100%);--gradient-accent: linear-gradient(135deg, #a3e635 0%, #65a30d 100%);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 10px 30px rgba(0, 0, 0, .1);--shadow-accent: 0 8px 20px -4px rgba(132, 204, 22, .4);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--transition: all .2s ease}*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:Poppins,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--color-bg);color:var(--color-text);min-height:100vh;font-size:15px;line-height:1.5}a{color:var(--color-primary);text-decoration:none;transition:var(--transition)}a:hover{color:var(--color-primary-dark)}button{font-family:inherit;cursor:pointer;border:none;transition:var(--transition)}input,button{font-size:1rem}.container{max-width:1200px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:var(--transition);border:2px solid transparent}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:0 8px 20px -4px #00000059}.btn-primary:disabled{background:var(--color-primary-light);cursor:not-allowed;transform:none;box-shadow:none}.btn-accent{background:var(--color-accent);color:var(--color-primary-dark);font-weight:700}.btn-accent:hover{background:var(--color-accent-bright);transform:translateY(-1px);box-shadow:var(--shadow-accent)}.btn-outline{background:transparent;border:2px solid var(--color-primary);color:var(--color-primary)}.btn-outline:hover{background:var(--color-primary);color:#fff}.btn-block{width:100%}