@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

body{font-family:'Inter',system-ui,sans-serif;background:#0f0f13;color:#e4e4e7;line-height:1.6;min-height:100vh}

.container{max-width:900px;margin:0 auto;padding:0 1.25rem}

/* Header */
.site-header{border-bottom:1px solid rgba(255,255,255,0.06);padding:1rem 0}
.site-header .container{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:0.5rem;text-decoration:none;color:#e4e4e7;font-weight:700;font-size:1.15rem}
.logo-icon{font-size:1.4rem;background:linear-gradient(135deg,#4ade80,#22c55e,#16a34a);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:800}
.site-header nav{display:flex;gap:1.5rem}
.site-header nav a{color:#a1a1aa;text-decoration:none;font-size:0.9rem;font-weight:500;transition:color 0.2s}
.site-header nav a:hover{color:#e4e4e7}

/* Hero */
.hero{text-align:center;padding:3rem 1.25rem 1.5rem}
.hero h1{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,#4ade80,#22c55e,#16a34a);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:0.5rem}
.hero p{color:#a1a1aa;font-size:1.05rem;max-width:550px;margin:0 auto}

/* Card */
.card{background:#1a1a2e;border:1px solid rgba(255,255,255,0.06);border-radius:1.25rem;padding:1.75rem;margin-bottom:1.5rem}

/* Password display */
.password-display{background:#0f0f13;border:1px solid rgba(255,255,255,0.1);border-radius:0.75rem;padding:1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1.25rem}
.password-text{font-family:'JetBrains Mono','Fira Code',monospace;font-size:1.35rem;color:#e4e4e7;word-break:break-all;flex:1;user-select:all;line-height:1.5}

/* Buttons */
.btn-row{display:flex;gap:0.5rem;margin-bottom:1.25rem;flex-wrap:wrap}
.btn-primary{background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;border:none;padding:0.7rem 1.5rem;border-radius:0.75rem;font-weight:600;font-size:0.9rem;cursor:pointer;transition:opacity 0.2s;font-family:'Inter',sans-serif}
.btn-primary:hover{opacity:0.9}
.btn-secondary{background:rgba(255,255,255,0.06);color:#e4e4e7;border:1px solid rgba(255,255,255,0.1);padding:0.7rem 1.25rem;border-radius:0.75rem;font-weight:500;font-size:0.9rem;cursor:pointer;transition:all 0.2s;font-family:'Inter',sans-serif}
.btn-secondary:hover{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.15)}
.btn-copy{background:rgba(34,197,94,0.1);border:1px solid rgba(34,197,94,0.25);color:#4ade80;padding:0.5rem 1rem;border-radius:0.6rem;font-weight:600;font-size:0.8rem;cursor:pointer;transition:all 0.2s;font-family:'Inter',sans-serif;white-space:nowrap}
.btn-copy:hover{background:rgba(34,197,94,0.2)}
.btn-copy.copied{background:rgba(34,197,94,0.25);color:#86efac}

/* Slider */
.slider-group{margin-bottom:1.25rem}
.slider-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.5rem}
.slider-header label{font-weight:600;font-size:0.95rem}
.slider-value{font-family:'JetBrains Mono',monospace;font-size:1rem;color:#4ade80;font-weight:700;background:rgba(34,197,94,0.1);padding:0.2rem 0.6rem;border-radius:0.4rem}
input[type="range"]{-webkit-appearance:none;width:100%;height:6px;background:rgba(255,255,255,0.1);border-radius:3px;outline:none}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,#4ade80,#22c55e);cursor:pointer;border:2px solid #0f0f13}
input[type="range"]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,#4ade80,#22c55e);cursor:pointer;border:2px solid #0f0f13}

/* Options */
.options-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0.6rem;margin-bottom:1.25rem}
.option-item{display:flex;align-items:center;gap:0.6rem;padding:0.6rem 0.85rem;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.06);border-radius:0.65rem;cursor:pointer;transition:all 0.2s;user-select:none}
.option-item:hover{background:rgba(255,255,255,0.06)}
.option-item input[type="checkbox"]{display:none}
.toggle{width:36px;height:20px;background:rgba(255,255,255,0.15);border-radius:10px;position:relative;transition:background 0.2s;flex-shrink:0}
.toggle::after{content:'';position:absolute;top:2px;left:2px;width:16px;height:16px;background:#71717a;border-radius:50%;transition:all 0.2s}
.option-item input:checked+.toggle{background:rgba(34,197,94,0.4)}
.option-item input:checked+.toggle::after{left:18px;background:#4ade80}
.option-label{font-size:0.85rem;color:#d4d4d8;font-weight:500}

/* Strength meter */
.strength-section{margin-bottom:1.25rem}
.strength-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.4rem}
.strength-label{font-size:0.85rem;font-weight:600;color:#a1a1aa}
.strength-text{font-size:0.85rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em}
.strength-bar{height:6px;background:rgba(255,255,255,0.08);border-radius:3px;overflow:hidden}
.strength-fill{height:100%;border-radius:3px;transition:width 0.3s,background 0.3s}
.strength-weak{color:#ef4444}.strength-weak .strength-fill{background:#ef4444;width:20%}
.strength-fair{color:#f97316}.strength-fair .strength-fill{background:#f97316;width:40%}
.strength-good{color:#eab308}.strength-good .strength-fill{background:#eab308;width:60%}
.strength-strong{color:#22c55e}.strength-strong .strength-fill{background:#22c55e;width:80%}
.strength-very-strong{color:#4ade80}.strength-very-strong .strength-fill{background:#4ade80;width:100%}

/* Multi password list */
.multi-section{margin-top:1.5rem;border-top:1px solid rgba(255,255,255,0.06);padding-top:1.25rem}
.multi-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.75rem;flex-wrap:wrap;gap:0.5rem}
.multi-header span{font-weight:600;font-size:0.95rem}
.password-list{list-style:none}
.password-item{display:flex;align-items:center;gap:0.75rem;padding:0.55rem 0;border-bottom:1px solid rgba(255,255,255,0.04)}
.password-item:last-child{border-bottom:none}
.password-item-text{font-family:'JetBrains Mono',monospace;font-size:0.85rem;color:#e4e4e7;word-break:break-all;flex:1;user-select:all}
.btn-copy-sm{background:rgba(34,197,94,0.08);border:1px solid rgba(34,197,94,0.2);color:#4ade80;padding:0.3rem 0.65rem;border-radius:0.5rem;font-size:0.75rem;cursor:pointer;font-family:'Inter',sans-serif;font-weight:600;transition:all 0.2s;white-space:nowrap}
.btn-copy-sm:hover{background:rgba(34,197,94,0.15)}
.btn-copy-sm.copied{color:#86efac}

/* History */
.history-section{margin-top:1.5rem;border-top:1px solid rgba(255,255,255,0.06);padding-top:1.25rem}
.history-section h3{font-weight:600;font-size:0.95rem;margin-bottom:0.5rem;color:#a1a1aa}

/* Content sections */
.content-section h2{font-size:1.5rem;font-weight:700;margin-bottom:1rem;color:#f4f4f5}
.content-section h3{font-size:1.1rem;font-weight:600;margin:1.25rem 0 0.5rem;color:#d4d4d8}
.content-section p{color:#a1a1aa;margin-bottom:0.75rem;font-size:0.95rem}
.content-section ul{list-style:disc;padding-left:1.5rem;color:#a1a1aa;margin-bottom:1rem}
.content-section ul li{margin-bottom:0.35rem;font-size:0.95rem}
.content-section details{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.06);border-radius:0.75rem;padding:1rem;margin-bottom:0.5rem}
.content-section summary{font-weight:600;cursor:pointer;color:#d4d4d8}
.content-section details p{margin-top:0.5rem;margin-bottom:0}

/* Ad slots */
.ad-slot{min-height:90px;margin:1.5rem auto;text-align:center;max-width:728px}

/* Footer */
.site-footer{border-top:1px solid rgba(255,255,255,0.06);padding:2rem 0;margin-top:3rem}
.site-footer .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.site-footer p{color:#71717a;font-size:0.85rem}
.site-footer nav{display:flex;gap:1.5rem}
.site-footer nav a{color:#71717a;text-decoration:none;font-size:0.85rem;transition:color 0.2s}
.site-footer nav a:hover{color:#a1a1aa}

.hidden{display:none !important}

@media(max-width:640px){
    .hero h1{font-size:1.75rem}
    .site-header nav{display:none}
    .options-grid{grid-template-columns:1fr}
    .card{padding:1.25rem}
    .password-text{font-size:1rem}
    .site-footer .container{flex-direction:column;text-align:center}
}