/* ============================================================
   Bostme.com — Complete Design System
   Mobile-First • RTL Ready • Light/Dark • Professional
   ============================================================ */

/* ── CSS Variables ─────────────────────────── */
:root {
  --primary: #FF2D55;
  --primary-hover: #E0284A;
  --primary-light: rgba(255, 45, 85, 0.08);
  --secondary: #FF6B00;
  --secondary-hover: #E05E00;
  --accent: #7C3AED;
  --accent-hover: #6D28D9;
  --accent-light: rgba(124, 58, 237, 0.08);
  --bg: #F8FAFC;
  --card: #FFFFFF;
  --text: #0F172A;
  --text2: #475569;
  --muted: #94A3B8;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07),0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.1),0 4px 10px rgba(0,0,0,.06);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --font: 'Inter',system-ui,-apple-system,sans-serif;
  --font-mono: 'Space Grotesk','JetBrains Mono',monospace;
  --t: .25s ease;
}

.dark {
  --primary: #FF4D6D;
  --primary-hover: #FF6B85;
  --primary-light: rgba(255,77,109,.12);
  --secondary: #FF8A3D;
  --accent: #A78BFA;
  --accent-light: rgba(167,139,250,.1);
  --bg: #0F172A;
  --card: #1E293B;
  --text: #F1F5F9;
  --text2: #CBD5E1;
  --muted: #64748B;
  --border: #334155;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow: 0 1px 3px rgba(0,0,0,.35);
  --shadow-md: 0 4px 6px rgba(0,0,0,.4);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.45);
}

/* ── Reset & Base ──────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;font-size:16px}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  transition:background var(--t),color var(--t);
  min-height:100vh;
  display:flex;flex-direction:column;
  overflow-x:hidden;
}

/* RTL */
[dir=rtl]{direction:rtl;text-align:right}
[dir=rtl] .ltr{display:inline-block;direction:ltr}

/* ── Typography ────────────────────────────── */
h1,h2,h3,h4{font-weight:800;line-height:1.2;color:var(--text)}
h1{font-size:clamp(1.75rem,4vw,2.75rem)}
h2{font-size:clamp(1.35rem,3vw,2rem)}
h3{font-size:clamp(1.1rem,2vw,1.4rem)}
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--primary-hover)}

/* ── Container ─────────────────────────────── */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1rem}
@media(min-width:640px){.container{padding:0 1.5rem}}
@media(min-width:1024px){.container{padding:0 2rem}}

/* ── Buttons ───────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  padding:.65rem 1.4rem;border-radius:var(--radius-lg);font-weight:600;
  font-size:.9rem;font-family:var(--font);cursor:pointer;border:none;
  transition:all var(--t);white-space:nowrap;text-decoration:none;line-height:1.4;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;box-shadow:0 4px 14px rgba(255,45,85,.25);
}
.btn-primary:hover{box-shadow:0 6px 20px rgba(255,45,85,.35);color:#fff}
.btn-secondary{
  background:var(--card);color:var(--text);border:2px solid var(--border);
}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{box-shadow:0 4px 15px rgba(124,58,237,.3);color:#fff}
.btn-sm{padding:.45rem 1rem;font-size:.8rem;border-radius:var(--radius)}
.btn-lg{padding:.85rem 2rem;font-size:1.05rem}
.btn-icon{width:2.5rem;height:2.5rem;padding:0;border-radius:50%}

@media(max-width:380px){
  .btn{padding:.55rem 1rem;font-size:.82rem}
  .btn-lg{padding:.7rem 1.4rem;font-size:.95rem}
}

/* ── Header ────────────────────────────────── */
.site-header{
  background:var(--card);border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:100;box-shadow:var(--shadow-sm);
  transition:background var(--t);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:3.5rem;gap:.75rem;
}
@media(min-width:768px){.header-inner{height:4rem}}

.logo{
  display:flex;align-items:center;gap:.35rem;
  font-size:1.3rem;font-weight:800;color:var(--text);text-decoration:none;
}
.logo .dot{color:var(--primary)}
@media(min-width:768px){.logo{font-size:1.5rem}}

.nav-links{display:none;align-items:center;gap:1.5rem;list-style:none}
@media(min-width:768px){.nav-links{display:flex}}
.nav-links a{color:var(--text2);font-weight:500;font-size:.9rem;transition:color var(--t)}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}

.header-actions{display:flex;align-items:center;gap:.5rem}

.dark-toggle{
  width:2.4rem;height:2.4rem;border-radius:50%;border:2px solid var(--border);
  background:var(--card);cursor:pointer;font-size:1.1rem;
  display:flex;align-items:center;justify-content:center;
  color:var(--text);transition:all var(--t);flex-shrink:0;
}
.dark-toggle:hover{border-color:var(--primary)}

.lang-switch{
  display:flex;align-items:center;gap:.3rem;
  padding:.35rem .7rem;border-radius:var(--radius-lg);
  border:2px solid var(--border);background:var(--card);
  cursor:pointer;font-weight:600;font-size:.8rem;
  color:var(--text);transition:all var(--t);flex-shrink:0;
}
.lang-switch:hover{border-color:var(--primary)}
@media(min-width:768px){.lang-switch{font-size:.85rem;padding:.4rem .85rem}}

/* Mobile nav */
.mobile-toggle{
  display:flex;background:none;border:none;cursor:pointer;
  color:var(--text);font-size:1.4rem;padding:.25rem;
}
@media(min-width:768px){.mobile-toggle{display:none}}

.mobile-menu{
  display:none;flex-direction:column;background:var(--card);
  border-bottom:1px solid var(--border);padding:.25rem 1rem .75rem;gap:.25rem;
}
.mobile-menu.open{display:flex}
.mobile-menu a{
  padding:.65rem 0;color:var(--text2);font-weight:500;
  border-bottom:1px solid var(--border);font-size:.9rem;
}
.mobile-menu a:last-child{border-bottom:none}

/* ── Hero ──────────────────────────────────── */
.hero{padding:3rem 0 2.5rem;text-align:center;position:relative;overflow:hidden}
.hero::before{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle at 50% 50%,rgba(255,45,85,.04) 0,transparent 60%),
             radial-gradient(circle at 80% 20%,rgba(124,58,237,.03) 0,transparent 50%);
  pointer-events:none;
}
@media(min-width:768px){.hero{padding:4.5rem 0 3.5rem}}
.hero h1{
  font-size:clamp(1.8rem,5vw,3.2rem);margin-bottom:.75rem;
  line-height:1.15;
}
.hero .highlight{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero p{
  font-size:.95rem;color:var(--text2);max-width:600px;
  margin:0 auto 1.5rem;line-height:1.7;
}
@media(min-width:768px){.hero p{font-size:1.1rem;margin-bottom:2rem}}
.hero-buttons{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}

/* ── Sections ──────────────────────────────── */
.section{padding:2.5rem 0}
@media(min-width:768px){.section{padding:3.5rem 0}}
.section-header{text-align:center;margin-bottom:2rem}
@media(min-width:768px){.section-header{margin-bottom:2.5rem}}
.section-header h2{margin-bottom:.5rem}
.section-header p{color:var(--text2);max-width:550px;margin:0 auto;font-size:.9rem}
@media(min-width:768px){.section-header p{font-size:1rem}}

/* ── Tools Grid ────────────────────────────── */
.tools-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem;padding:1rem 0;
}
@media(min-width:500px){.tools-grid{grid-template-columns:repeat(3,1fr);gap:1rem}}
@media(min-width:768px){.tools-grid{grid-template-columns:repeat(4,1fr);gap:1.25rem}}
@media(min-width:1024px){.tools-grid{grid-template-columns:repeat(5,1fr);gap:1.5rem}}

.card{
  background:var(--card);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);border:1px solid var(--border);
  padding:1.25rem;transition:all var(--t);
}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}

.card-tool{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  gap:.5rem;cursor:pointer;padding:1.25rem .75rem;
}
.card-tool .icon{
  width:3rem;height:3rem;border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;font-size:1.5rem;
  background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;
  flex-shrink:0;
}
@media(min-width:768px){.card-tool .icon{width:3.5rem;height:3.5rem;font-size:1.75rem}}
.card-tool h3{font-size:.9rem;line-height:1.3}
@media(min-width:500px){.card-tool h3{font-size:.95rem}}
.card-tool .desc{color:var(--muted);font-size:.75rem;line-height:1.4}
@media(min-width:500px){.card-tool .desc{font-size:.8rem}}

/* ── Marketing (Benefit) Cards ─────────────── */
.benefits-grid{
  display:grid;grid-template-columns:1fr;gap:1rem;
}
@media(min-width:500px){.benefits-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:768px){.benefits-grid{grid-template-columns:repeat(3,1fr);gap:1.25rem}}
@media(min-width:1024px){.benefits-grid{grid-template-columns:repeat(4,1fr)}}

.benefit-card{
  text-align:center;padding:1.5rem 1rem;
  background:var(--card);border-radius:var(--radius-lg);
  border:1px solid var(--border);box-shadow:var(--shadow);
  transition:all var(--t);
}
.benefit-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.benefit-card .b-icon{font-size:2rem;margin-bottom:.5rem}
.benefit-card h3{font-size:.95rem;margin-bottom:.35rem}
.benefit-card p{color:var(--text2);font-size:.8rem;line-height:1.5}

/* Features */
.features-grid{
  display:grid;grid-template-columns:1fr;gap:1rem;
}
@media(min-width:500px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:768px){.features-grid{grid-template-columns:repeat(3,1fr);gap:1.25rem}}

.feature-card{
  text-align:center;padding:1.5rem 1rem;
  background:var(--card);border-radius:var(--radius-lg);
  border:1px solid var(--border);box-shadow:var(--shadow);
  transition:all var(--t);
}
.feature-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.feature-card .f-icon{font-size:2.2rem;margin-bottom:.5rem}
.feature-card h3{font-size:.95rem;margin-bottom:.35rem}
.feature-card p{color:var(--text2);font-size:.8rem;line-height:1.5}

/* ── Tool Page Elements ────────────────────── */
.breadcrumbs{padding:.75rem 0;font-size:.8rem;color:var(--muted)}
.breadcrumbs a{color:var(--text2)}
.breadcrumbs a:hover{color:var(--primary)}

.tool-section{
  background:var(--card);border-radius:var(--radius-xl);
  box-shadow:var(--shadow-md);padding:1.25rem;margin:1.5rem 0;
  border:1px solid var(--border);
}
@media(min-width:768px){.tool-section{padding:2rem}}

.tool-row{display:grid;grid-template-columns:1fr;gap:.75rem}
@media(min-width:500px){.tool-row{grid-template-columns:1fr 1fr;gap:1rem}}

.tool-input-group{margin-bottom:1rem}
.tool-input-group label{display:block;font-weight:600;margin-bottom:.4rem;color:var(--text);font-size:.85rem}
.tool-input-group input,
.tool-input-group select,
.tool-input-group textarea{
  width:100%;padding:.7rem .85rem;border:2px solid var(--border);
  border-radius:var(--radius);background:var(--bg);color:var(--text);
  font-size:.95rem;font-family:var(--font);transition:all var(--t);
}
.tool-input-group input:focus,
.tool-input-group select:focus,
.tool-input-group textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-light);
}

.tool-result{
  background:linear-gradient(135deg,var(--primary-light),var(--accent-light));
  border-radius:var(--radius-xl);padding:1.5rem;text-align:center;
  margin-top:1rem;border:2px solid var(--primary);
}
.tool-result .result-value{
  font-size:2.5rem;font-weight:800;font-family:var(--font-mono);color:var(--primary);
  word-break:break-all;
}
@media(min-width:768px){.tool-result .result-value{font-size:3rem}}
.tool-result .result-label{font-size:.9rem;color:var(--text2);margin-top:.15rem}

.export-buttons,.share-buttons{
  display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.75rem;justify-content:center;
}

/* Stats grid (word counter etc) */
.stats-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem;margin-top:1rem;
}
@media(min-width:500px){.stats-grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:768px){.stats-grid{grid-template-columns:repeat(6,1fr)}}
.stat-card{
  background:var(--bg);padding:.75rem;border-radius:var(--radius);
  text-align:center;border:1px solid var(--border);
}
.stat-card .stat-value{font-size:1.3rem;font-weight:800;color:var(--primary);font-family:var(--font-mono)}
.stat-card .stat-label{font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}

/* History */
.history-list{list-style:none;max-height:250px;overflow-y:auto}
.history-list li{
  padding:.6rem .75rem;border-bottom:1px solid var(--border);
  display:flex;justify-content:space-between;align-items:center;font-size:.85rem;gap:.75rem;
}
.history-list li:last-child{border-bottom:none}

/* Steps */
.steps{
  display:grid;grid-template-columns:1fr;gap:1rem;margin:1rem 0;
}
@media(min-width:480px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(min-width:768px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{
  text-align:center;padding:1rem;background:var(--bg);
  border-radius:var(--radius);border:1px solid var(--border);
}
.step .step-number{
  width:2.2rem;height:2.2rem;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;margin:0 auto .5rem;font-size:1rem;
}
.step p{font-size:.8rem;color:var(--text2);line-height:1.5}

/* FAQ */
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:.5rem;overflow:hidden}
.faq-question{
  width:100%;padding:.75rem 1rem;background:var(--card);border:none;
  text-align:left;font-weight:600;font-size:.9rem;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;
  color:var(--text);font-family:var(--font);gap:.5rem;
}
[dir=rtl] .faq-question{text-align:right}
.faq-question::after{content:'+';font-size:1.2rem;flex-shrink:0}
.faq-item.open .faq-question::after{content:'−'}
.faq-answer{padding:0 1rem;max-height:0;overflow:hidden;transition:all .3s;color:var(--text2);line-height:1.7;font-size:.85rem}
.faq-item.open .faq-answer{padding:.5rem 1rem .75rem;max-height:400px}

/* Similar tools links */
.similar-tools{
  display:grid;grid-template-columns:repeat(2,1fr);gap:.6rem;margin-top:1rem;
}
@media(min-width:500px){.similar-tools{grid-template-columns:repeat(3,1fr)}}
@media(min-width:768px){.similar-tools{grid-template-columns:repeat(6,1fr)}}
.similar-tools a{
  padding:.55rem .75rem;background:var(--bg);border:1px solid var(--border);
  border-radius:var(--radius);text-align:center;font-weight:500;font-size:.8rem;
  color:var(--text2);transition:all var(--t);
}
.similar-tools a:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}

/* Info tables */
.info-table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.85rem}
.info-table th,.info-table td{padding:.6rem .75rem;border:1px solid var(--border);text-align:left}
[dir=rtl] .info-table th,[dir=rtl] .info-table td{text-align:right}
.info-table th{background:var(--bg);font-weight:600;font-size:.8rem}
.info-table td{color:var(--text2)}

/* Content card */
.content-card{
  background:var(--card);border-radius:var(--radius-xl);
  padding:1.25rem;margin-bottom:1.5rem;border:1px solid var(--border);
}
@media(min-width:768px){.content-card{padding:2rem}}
.content-card h2{margin-bottom:.75rem}
.content-card p{color:var(--text2);line-height:1.8;margin-bottom:.75rem;font-size:.9rem}

/* Mortgage table */
.amort-table{width:100%;border-collapse:collapse;font-size:.75rem;margin-top:.75rem}
.amort-table th,.amort-table td{padding:.4rem .5rem;border:1px solid var(--border);text-align:right}
.amort-table th{background:var(--bg);font-weight:600;position:sticky;top:0}

/* QR */
.qr-container{display:flex;justify-content:center;padding:1rem}
.qr-container canvas,.qr-container img{max-width:100%;height:auto}

/* Timezone */
.timezone-display{
  display:grid;grid-template-columns:1fr;gap:.75rem;align-items:center;
}
@media(min-width:600px){.timezone-display{grid-template-columns:1fr auto 1fr}}
.timezone-display .time-card{
  background:var(--bg);padding:1rem;border-radius:var(--radius);
  text-align:center;border:1px solid var(--border);
}
.timezone-display .time-value{font-size:1.5rem;font-weight:800;font-family:var(--font-mono);color:var(--primary)}
.timezone-display .arrow{font-size:1.5rem;text-align:center}

/* ── Footer ────────────────────────────────── */
.site-footer{
  background:var(--card);border-top:1px solid var(--border);
  padding:2rem 0 1rem;margin-top:auto;
}
.footer-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-bottom:1.5rem;
}
@media(min-width:600px){.footer-grid{grid-template-columns:repeat(4,1fr)}}
.footer-col h4{margin-bottom:.75rem;font-size:.95rem}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:.4rem}
.footer-col ul li a{color:var(--text2);font-size:.8rem;transition:color var(--t)}
.footer-col ul li a:hover{color:var(--primary)}
.footer-bottom{
  text-align:center;padding-top:1rem;border-top:1px solid var(--border);
  color:var(--muted);font-size:.78rem;
}

/* ── Cookie Banner ─────────────────────────── */
.cookie-banner{
  position:fixed;bottom:0;left:0;right:0;background:var(--card);
  border-top:2px solid var(--primary);padding:.85rem 1rem;
  z-index:9999;box-shadow:0 -4px 15px rgba(0,0,0,.1);
  display:none;align-items:center;justify-content:space-between;
  gap:1rem;flex-wrap:wrap;
}
.cookie-banner.show{display:flex}
.cookie-banner p{font-size:.8rem;color:var(--text2);flex:1;min-width:180px}
.cookie-banner .cookie-actions{display:flex;gap:.4rem;flex-wrap:wrap}

/* ── Toast ─────────────────────────────────── */
.toast{
  position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%);
  background:var(--text);color:var(--bg);padding:.6rem 1.25rem;
  border-radius:var(--radius-lg);font-weight:600;font-size:.85rem;
  z-index:10000;box-shadow:var(--shadow-lg);pointer-events:none;
  animation:toastIn .3s ease;
}
@keyframes toastIn{from{opacity:0;transform:translateX(-50%) translateY(15px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}

/* ── Utilities ─────────────────────────────── */
.text-center{text-align:center}
.text-gradient{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hidden{display:none!important}
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}
.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}

/* ── Badge ─────────────────────────────────── */
.badge{
  display:inline-block;padding:.2rem .65rem;border-radius:99px;
  font-size:.7rem;font-weight:600;background:var(--primary-light);color:var(--primary);
}

/* ── Mode buttons (percentage calc) ────────── */
.mode-btns{display:flex;gap:.4rem;justify-content:center;flex-wrap:wrap;margin-bottom:1rem}
.mode-btn{
  padding:.4rem .85rem;border-radius:var(--radius);
  border:2px solid var(--border);background:var(--card);
  color:var(--text2);cursor:pointer;font-size:.8rem;font-weight:600;transition:all var(--t);
}
.mode-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ── Print ─────────────────────────────────── */
@media print{
  .site-header,.site-footer,.cookie-banner,.export-buttons,.share-buttons,.btn,.mobile-toggle,.mobile-menu{display:none!important}
  body{background:#fff;color:#000}
  .tool-section{box-shadow:none;border:1px solid #ccc}
}

/* ── Animations ────────────────────────────── */
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
.anim-in{animation:fadeUp .45s ease forwards}

/* ── Scrollbar ─────────────────────────────── */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}