/* ═══════════════════════════════════════════════
   Döviz→TL Komisyonlu Çevirici — Premium CSS
   Senior Frontend Developer Level
   ═══════════════════════════════════════════════ */

/* ── DESIGN TOKENS ── */
:root {
  --bg: #f7f8fc;
  --bg-alt: #eef1f8;
  --card: #ffffff;
  --card-hover: #ffffff;
  --text: #111827;
  --text-secondary: #4b5563;
  --muted: #6b7280;
  --border: #e5e7eb;
  --border-hover: #d1d5db;

  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: #eff6ff;
  --accent-muted: rgba(37,99,235,.08);
  --accent-glow: rgba(37,99,235,.25);

  --accent2: #059669;
  --accent2-hover: #047857;
  --accent2-light: #ecfdf5;
  --accent2-glow: rgba(5,150,105,.25);

  --danger: #dc2626;
  --danger-light: #fef2f2;
  --warning-bg: #fffbeb;
  --warning-border: #f59e0b;
  --warning-text: #92400e;

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(0,0,0,.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
  --shadow-md: 0 8px 16px -4px rgba(0,0,0,.08), 0 4px 6px -2px rgba(0,0,0,.04);
  --shadow-lg: 0 20px 40px -8px rgba(0,0,0,.1), 0 8px 16px -4px rgba(0,0,0,.06);
  --shadow-xl: 0 32px 64px -12px rgba(0,0,0,.14);

  --transition: .2s cubic-bezier(.4,0,.2,1);
  --transition-slow: .35s cubic-bezier(.4,0,.2,1);
  --max-w: 1140px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}

[data-theme="dark"] {
  --bg: #0b1120;
  --bg-alt: #131c31;
  --card: #1a2744;
  --card-hover: #1e2d4f;
  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --muted: #64748b;
  --border: #1e3356;
  --border-hover: #2a4270;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-light: #172554;
  --accent-muted: rgba(59,130,246,.1);
  --accent-glow: rgba(59,130,246,.3);
  --accent2: #10b981;
  --accent2-hover: #34d399;
  --accent2-light: #064e3b;
  --accent2-glow: rgba(16,185,129,.3);
  --danger: #f87171;
  --danger-light: #450a0a;
  --warning-bg: #451a03;
  --warning-border: #d97706;
  --warning-text: #fde68a;
  --shadow-xs: 0 1px 2px rgba(0,0,0,.15);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.2);
  --shadow: 0 4px 6px rgba(0,0,0,.2);
  --shadow-md: 0 8px 16px rgba(0,0,0,.25);
  --shadow-lg: 0 20px 40px rgba(0,0,0,.3);
  --shadow-xl: 0 32px 64px rgba(0,0,0,.35);
}

/* ── RESET ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;min-height:100vh;display:flex;flex-direction:column;transition:background var(--transition),color var(--transition);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-hover)}
button{font-family:var(--font)}
::selection{background:var(--accent);color:#fff}

/* ── TYPOGRAPHY ── */
h1,h2,h3,h4,h5,h6{line-height:1.25;color:var(--text);font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.75rem,4vw,2.5rem);margin-bottom:.75rem}
h2{font-size:clamp(1.4rem,3vw,1.85rem);margin-bottom:.65rem}
h3{font-size:clamp(1.1rem,2.5vw,1.3rem);margin-bottom:.5rem}
h4{font-size:1.1rem;margin-bottom:.4rem}
p{margin-bottom:1rem;color:var(--text-secondary)}
ul,ol{margin-bottom:1rem;padding-left:1.5rem}
li{margin-bottom:.4rem;color:var(--text-secondary)}
strong{color:var(--text);font-weight:600}
code{font-family:var(--font-mono);font-size:.88em;background:var(--bg-alt);padding:.15em .4em;border-radius:var(--radius-xs)}

.container{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem}

/* ── SKIP LINK / A11Y ── */
.skip-link{position:absolute;top:-50px;left:0;background:var(--accent);color:#fff;padding:.6rem 1.2rem;z-index:10000;font-size:.9rem;border-radius:0 0 var(--radius-sm) 0;transition:top var(--transition)}
.skip-link:focus{top:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ════════════════════════
   HEADER
   ════════════════════════ */
.site-header{background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background:rgba(255,255,255,.85);transition:all var(--transition)}
[data-theme="dark"] .site-header{background:rgba(26,39,68,.85)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:1rem}
.logo{font-size:1.1rem;font-weight:800;color:var(--text);display:flex;align-items:center;gap:.45rem;white-space:nowrap;letter-spacing:-.02em}
.logo:hover{color:var(--accent);text-decoration:none}
.logo-icon{font-size:1.3rem}
.site-nav{display:flex;align-items:center}
.nav-links{list-style:none;display:flex;gap:.15rem;padding:0;margin:0}
.nav-link{display:block;padding:.5rem .9rem;border-radius:var(--radius-sm);font-size:.88rem;font-weight:500;color:var(--text-secondary);transition:all var(--transition)}
.nav-link:hover,.nav-link.active{background:var(--accent-muted);color:var(--accent);text-decoration:none}
.nav-toggle{display:none;background:none;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:1.2rem;cursor:pointer;color:var(--text);padding:.3rem .5rem;transition:all var(--transition)}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent)}
.theme-toggle{background:var(--bg-alt);border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;cursor:pointer;padding:.35rem .55rem;transition:all var(--transition);color:var(--text);line-height:1}
.theme-toggle:hover{border-color:var(--accent);background:var(--accent-light)}

@media(max-width:768px){
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .nav-links{display:none;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:var(--card);border-bottom:1px solid var(--border);padding:.5rem;box-shadow:var(--shadow-md);gap:0}
  .nav-links.open{display:flex}
  .nav-link{padding:.7rem 1rem;border-radius:var(--radius-sm)}
}

/* ════════════════════════
   HERO (gradient)
   ════════════════════════ */
.hero-gradient{background:linear-gradient(135deg,#1e3a8a 0%,#2563eb 50%,#3b82f6 100%);color:#fff;padding:4rem 0 3.5rem;position:relative;overflow:hidden}
.hero-gradient::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 20% 50%,rgba(255,255,255,.08) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(255,255,255,.05) 0%,transparent 40%);pointer-events:none}
[data-theme="dark"] .hero-gradient{background:linear-gradient(135deg,#0b1120 0%,#172554 50%,#1e3a5f 100%)}
.hero-content{position:relative;z-index:1;text-align:center;max-width:720px;margin:0 auto}
.hero-badge{display:inline-flex;align-items:center;gap:.4rem;background:rgba(255,255,255,.15);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-full);padding:.35rem 1rem;font-size:.82rem;font-weight:600;margin-bottom:1.25rem;letter-spacing:.02em}
.hero-gradient h1{color:#fff;font-size:clamp(2rem,5.5vw,3.2rem);line-height:1.15;margin-bottom:1rem;letter-spacing:-.025em}
.hero-highlight{background:linear-gradient(90deg,#93c5fd,#c4b5fd,#fbcfe8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
[data-theme="dark"] .hero-highlight{background:linear-gradient(90deg,#60a5fa,#a78bfa,#f9a8d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.1rem;color:rgba(255,255,255,.8);max-width:560px;margin:0 auto 2rem;line-height:1.65}
.hero-actions{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}
.hero-actions .btn{font-size:1rem;padding:.8rem 2rem}

/* Simple hero (inner pages) */
.hero{text-align:center;padding:2.5rem 0 1.5rem}
.hero .subtitle{font-size:1.05rem;color:var(--muted);max-width:600px;margin:0 auto 1.5rem}

/* ════════════════════════
   STATS BAR
   ════════════════════════ */
.stats-bar{background:var(--card);border-bottom:1px solid var(--border);padding:1.25rem 0}
.stats-row{display:flex;justify-content:center;gap:2.5rem;flex-wrap:wrap}
.stat-item{text-align:center}
.stat-num{display:block;font-size:1.5rem;font-weight:800;color:var(--accent);line-height:1.2}
.stat-label{font-size:.78rem;color:var(--muted);font-weight:500;text-transform:uppercase;letter-spacing:.06em}

/* ════════════════════════
   BUTTONS
   ════════════════════════ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;padding:.65rem 1.35rem;font-size:.9rem;font-weight:600;border:2px solid transparent;border-radius:var(--radius-sm);cursor:pointer;font-family:var(--font);transition:all var(--transition);white-space:nowrap;text-decoration:none;line-height:1.4}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 2px 8px var(--accent-glow)}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff;box-shadow:0 4px 16px var(--accent-glow)}
.btn-success{background:var(--accent2);color:#fff;border-color:var(--accent2);box-shadow:0 2px 8px var(--accent2-glow)}
.btn-success:hover{background:var(--accent2-hover);border-color:var(--accent2-hover);color:#fff}
.btn-outline{background:transparent;color:var(--accent);border-color:var(--border)}
.btn-outline:hover{border-color:var(--accent);background:var(--accent-muted);color:var(--accent)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-sm{padding:.38rem .85rem;font-size:.82rem}
.btn-lg{padding:.8rem 1.75rem;font-size:.95rem}
.btn-block{width:100%}
.form-actions{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:.75rem}

/* ════════════════════════
   CARDS
   ════════════════════════ */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:all var(--transition);margin-bottom:1.5rem}
.card:hover{box-shadow:var(--shadow)}
.card-header{padding:1.15rem 1.5rem;border-bottom:1px solid var(--border)}
.card-header h2,.card-header h3{margin-bottom:0}
.card-body{padding:1.5rem}
.card-footer{padding:1rem 1.5rem;border-top:1px solid var(--border)}

/* ════════════════════════
   FORM CONTROLS
   ════════════════════════ */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:560px){.form-row{grid-template-columns:1fr}}
.form-group{margin-bottom:1.15rem}
.form-label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.35rem;color:var(--text)}
.form-hint{font-size:.78rem;color:var(--muted);margin-top:.3rem}
.form-control,.form-select{width:100%;padding:.65rem 1rem;font-size:.95rem;border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text);transition:all var(--transition);font-family:var(--font)}
.form-control:focus,.form-select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.form-control.error{border-color:var(--danger);box-shadow:0 0 0 3px rgba(220,38,38,.15)}
.form-select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%236b7280'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem}
.form-check{display:flex;align-items:center;gap:.5rem;cursor:pointer;font-size:.88rem;color:var(--text-secondary)}
.form-check input[type="checkbox"]{width:18px;height:18px;accent-color:var(--accent);cursor:pointer;border-radius:var(--radius-xs)}

/* ════════════════════════
   CHIPS
   ════════════════════════ */
.chip-group{display:flex;gap:.45rem;flex-wrap:wrap}
.chip{padding:.38rem .85rem;border-radius:var(--radius-full);font-size:.82rem;font-weight:500;border:1.5px solid var(--border);background:var(--bg);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);font-family:var(--font);line-height:1.4}
.chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-muted)}
.chip.active{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 2px 8px var(--accent-glow)}
.chip-sm{padding:.25rem .65rem;font-size:.78rem}
.quick-chips{margin-top:.5rem}
.quick-chips p{font-size:.78rem;font-weight:600;margin-bottom:.35rem;color:var(--muted)}

/* ════════════════════════
   RESULT
   ════════════════════════ */
.result-section{animation:fadeUp .45s ease}
.result-card{background:linear-gradient(135deg,#059669 0%,#047857 50%,#065f46 100%);border-radius:var(--radius-lg);padding:2.25rem 1.5rem;text-align:center;margin-bottom:1.5rem;box-shadow:0 8px 32px rgba(5,150,105,.25);position:relative;overflow:hidden}
.result-card::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 40%,rgba(255,255,255,.1) 0%,transparent 60%);pointer-events:none}
[data-theme="dark"] .result-card{background:linear-gradient(135deg,#064e3b 0%,#065f46 50%,#047857 100%)}
.result-label{display:block;font-size:.9rem;color:rgba(255,255,255,.8);margin-bottom:.4rem;font-weight:500}
.result-value{display:block;font-size:clamp(2.2rem,6vw,3.2rem);font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.2}

.breakdown .table{margin-bottom:0}

/* ════════════════════════
   TABLE
   ════════════════════════ */
.table-responsive{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table{width:100%;border-collapse:collapse;font-size:.9rem}
.table th,.table td{padding:.7rem 1rem;text-align:left;border-bottom:1px solid var(--border)}
.table th{font-weight:600;color:var(--muted);background:var(--bg-alt);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}
.table td{color:var(--text-secondary)}
.table tr:last-child td{border-bottom:none}
.table .highlight-row td{font-weight:700;color:var(--accent2);font-size:1rem;background:var(--accent2-light)}

/* ════════════════════════
   ACCORDION
   ════════════════════════ */
.accordion{margin-bottom:1.5rem}
.accordion-item{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:.5rem;overflow:hidden;background:var(--card);transition:border-color var(--transition)}
.accordion-item:hover{border-color:var(--border-hover)}
.accordion-item.open{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent-muted)}
.accordion-header{width:100%;padding:.9rem 1.15rem;background:none;border:none;text-align:left;font-size:.92rem;font-weight:600;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-family:var(--font);transition:all var(--transition)}
.accordion-header:hover{background:var(--bg-alt)}
.accordion-header::after{content:'+';font-size:1.15rem;font-weight:400;color:var(--muted);transition:transform var(--transition);flex-shrink:0;width:1.5rem;text-align:center}
.accordion-item.open .accordion-header::after{content:'−';color:var(--accent)}
.accordion-body{max-height:0;overflow:hidden;transition:max-height var(--transition-slow)}
.accordion-body-inner{padding:0 1.15rem 1.15rem}
.accordion-item.open .accordion-body{max-height:2500px}

/* ════════════════════════
   WARNING / DISCLAIMER
   ════════════════════════ */
.warning-box,.disclaimer-box{background:var(--warning-bg);border:1px solid var(--warning-border);border-left:4px solid var(--warning-border);border-radius:var(--radius-sm);padding:1rem 1.15rem;font-size:.85rem;color:var(--warning-text);margin:1.25rem 0;display:flex;gap:.6rem;align-items:flex-start;line-height:1.6}
.warning-box::before,.disclaimer-box::before{content:'⚠';flex-shrink:0;font-size:1rem}
.info-box{background:var(--accent-light);border:1px solid var(--accent);border-left:4px solid var(--accent);border-radius:var(--radius-sm);padding:1rem 1.15rem;font-size:.85rem;color:var(--text);margin:1.25rem 0}

/* ════════════════════════
   TOAST
   ════════════════════════ */
.toast-container{position:fixed;bottom:1.5rem;right:1.5rem;z-index:9999;display:flex;flex-direction:column;gap:.5rem;pointer-events:none}
.toast{pointer-events:auto;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:.8rem 1.15rem;box-shadow:var(--shadow-lg);font-size:.88rem;animation:slideInRight .3s ease;min-width:260px;max-width:380px;display:flex;align-items:center;gap:.5rem}
.toast.success{border-left:4px solid var(--accent2)}
.toast.error{border-left:4px solid var(--danger)}
.toast.info{border-left:4px solid var(--accent)}

/* ════════════════════════
   BREADCRUMB
   ════════════════════════ */
.breadcrumb{padding:.85rem 0;font-size:.82rem;color:var(--muted)}
.breadcrumb a{color:var(--muted);font-weight:500}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{margin:0 .3rem;opacity:.5}

/* ════════════════════════
   SECTION HELPERS
   ════════════════════════ */
.section{padding:3rem 0}
.section-sm{padding:1.5rem 0}
.section-title{text-align:center;margin-bottom:.5rem}
.section-subtitle{text-align:center;color:var(--muted);max-width:560px;margin:0 auto 2rem;font-size:.95rem}
.section-alt{background:var(--bg-alt)}

/* ════════════════════════
   HOW IT WORKS
   ════════════════════════ */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.step-card{text-align:center;padding:2rem 1.25rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition);position:relative}
.step-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.step-num{width:48px;height:48px;border-radius:var(--radius-full);background:var(--accent);color:#fff;font-size:1.15rem;font-weight:800;display:inline-flex;align-items:center;justify-content:center;margin-bottom:1rem;box-shadow:0 4px 12px var(--accent-glow)}
.step-card h3{margin-bottom:.4rem;font-size:1.05rem}
.step-card p{font-size:.88rem;margin-bottom:0;color:var(--muted)}
@media(max-width:640px){.steps-grid{grid-template-columns:1fr;max-width:360px;margin:0 auto}}

/* ════════════════════════
   FEATURES
   ════════════════════════ */
.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem}
.feature-card{padding:1.75rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition)}
.feature-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.feature-icon{width:52px;height:52px;border-radius:var(--radius);background:var(--accent-light);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:1rem}
.feature-card h3{font-size:1rem;margin-bottom:.35rem}
.feature-card p{font-size:.88rem;margin-bottom:0;color:var(--muted)}
@media(max-width:640px){.features-grid{grid-template-columns:1fr}}

/* ════════════════════════
   POPULAR / GRID LINKS
   ════════════════════════ */
.popular-section{margin:0}
.pair-grid,.preset-grid,.link-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:.75rem;margin:1.5rem 0}
.grid-link{display:block;padding:1rem 1.15rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);transition:all var(--transition);font-size:.88rem;color:var(--text-secondary);text-decoration:none}
.grid-link:hover{border-color:var(--accent);color:var(--accent);text-decoration:none;box-shadow:var(--shadow);transform:translateY(-2px)}
.grid-link strong{display:block;color:var(--text);margin-bottom:.15rem;font-size:.9rem}

/* ════════════════════════
   GUIDE LIST / CARDS
   ════════════════════════ */
.guide-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.15rem}
.guide-card{display:block;padding:1.5rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition);text-decoration:none}
.guide-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);text-decoration:none;transform:translateY(-3px)}
.guide-card h3{color:var(--text);margin-bottom:.35rem;font-size:1rem}
.guide-card p{font-size:.85rem;color:var(--muted);margin-bottom:0;line-height:1.5}

.guide-content{max-width:780px}
.guide-content h2{margin-top:2.25rem;padding-top:1.25rem;border-top:1px solid var(--border)}
.guide-content h3{margin-top:1.75rem}
.guide-content p,.guide-content li{font-size:.93rem}
.guide-content blockquote{border-left:4px solid var(--accent);margin:1.25rem 0;padding:.75rem 1.25rem;background:var(--bg-alt);border-radius:0 var(--radius-sm) var(--radius-sm) 0}
.guide-content blockquote p{margin-bottom:0;font-style:italic;color:var(--text)}

/* ════════════════════════
   FAQ
   ════════════════════════ */
.faq-section{max-width:780px;margin:0 auto}

/* ════════════════════════
   CTA BOX
   ════════════════════════ */
.cta-box{background:linear-gradient(135deg,var(--accent-light),var(--bg-alt));border:1px solid var(--accent);border-radius:var(--radius-lg);padding:2rem;text-align:center;margin:2.5rem 0}
[data-theme="dark"] .cta-box{background:linear-gradient(135deg,var(--accent-light),var(--bg-alt))}
.cta-box h3{color:var(--accent);margin-bottom:.5rem;font-size:1.2rem}
.cta-box p{margin-bottom:1.25rem;max-width:500px;margin-left:auto;margin-right:auto}

/* ════════════════════════
   SEARCH
   ════════════════════════ */
.search-wrapper{max-width:600px;margin:0 auto 2rem}
.search-input-group{position:relative}
.search-input-group .form-control{padding-left:2.75rem;font-size:1.02rem;border-radius:var(--radius)}
.search-input-group::before{content:'🔍';position:absolute;left:1rem;top:50%;transform:translateY(-50%);font-size:.95rem}
.search-filters{margin:1rem 0 1.5rem}
.search-results{list-style:none;padding:0}
.search-result-item{padding:1rem 1.15rem;border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:.65rem;background:var(--card);transition:all var(--transition)}
.search-result-item:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.search-result-item h3{font-size:.95rem;margin-bottom:.25rem}
.search-result-item h3 a{color:var(--text)}
.search-result-item h3 a:hover{color:var(--accent);text-decoration:none}
.search-result-item p{font-size:.82rem;margin-bottom:.3rem}
.search-result-item .tag{font-size:.72rem;background:var(--accent-light);color:var(--accent);padding:.12rem .5rem;border-radius:var(--radius-full);font-weight:600}
.no-results{text-align:center;padding:3rem 1rem;color:var(--muted)}

/* ════════════════════════
   GLOSSARY
   ════════════════════════ */
.glossary-grid{display:grid;gap:1rem}
.glossary-item{padding:1.25rem 1.5rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);transition:all var(--transition)}
.glossary-item:hover{border-color:var(--accent)}
.glossary-item dt{font-weight:700;color:var(--text);font-size:1rem;margin-bottom:.3rem}
.glossary-item dd{color:var(--text-secondary);font-size:.9rem;margin:0;line-height:1.6}

/* ════════════════════════
   POLICY / ABOUT
   ════════════════════════ */
.policy-content{max-width:780px}
.policy-content h2{margin-top:2rem}
.policy-content h3{margin-top:1.5rem}

/* ════════════════════════
   404
   ════════════════════════ */
.page-404{text-align:center;padding:5rem 1rem}
.page-404 .big-num{font-size:clamp(5rem,12vw,8rem);font-weight:900;background:linear-gradient(135deg,var(--accent),#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.page-404 h1{margin-top:.75rem;font-size:1.5rem}
.page-404 p{max-width:400px;margin:0 auto 2rem}

/* ════════════════════════
   AD SLOTS
   ════════════════════════ */
.ad-slot{margin:1.5rem 0;text-align:center;min-height:90px;background:var(--bg-alt);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;overflow:hidden}

/* ════════════════════════
   FOOTER
   ════════════════════════ */
.site-footer{background:var(--card);border-top:1px solid var(--border);margin-top:auto;padding:3rem 0 1.5rem;transition:background var(--transition)}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:2rem;margin-bottom:2rem}
.footer-col h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:.75rem;font-weight:700}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:.35rem}
.footer-col a{color:var(--text-secondary);font-size:.85rem;transition:color var(--transition)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--border);padding-top:1.25rem;text-align:center;font-size:.8rem;color:var(--muted)}
.footer-bottom p{margin-bottom:.25rem}

/* ════════════════════════
   COOKIE BANNER
   ════════════════════════ */
.cookie-banner{position:fixed;bottom:0;left:0;right:0;z-index:9998;background:var(--card);border-top:1px solid var(--border);box-shadow:0 -4px 16px rgba(0,0,0,.08);padding:1rem 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.85rem}
.cookie-banner.hidden{display:none}
.cookie-banner p{margin:0;color:var(--text-secondary);flex:1}
.cookie-banner a{color:var(--accent)}

/* ════════════════════════
   TIP LINK
   ════════════════════════ */
.tip-link{font-size:.8rem;color:var(--accent);display:inline-flex;align-items:center;gap:.25rem;margin-top:.2rem;font-weight:500}
.tip-link:hover{color:var(--accent-hover)}

/* ════════════════════════
   GUIDE SIDEBAR (sticky)
   ════════════════════════ */
.guide-sidebar{margin-top:2rem}
.guide-sidebar .card{position:sticky;top:80px}

/* ════════════════════════
   ANIMATIONS
   ════════════════════════ */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideInRight{from{opacity:0;transform:translateX(50px)}to{opacity:1;transform:translateX(0)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.7}}
.fade-up{animation:fadeUp .5s ease}

/* ════════════════════════
   RESPONSIVE
   ════════════════════════ */
@media(max-width:640px){
  .hero-gradient{padding:2.75rem 0 2.5rem}
  .hero-gradient h1{font-size:clamp(1.6rem,6vw,2rem)}
  .hero-desc{font-size:.95rem}
  .stats-row{gap:1.5rem}
  .stat-num{font-size:1.25rem}
  .card-body{padding:1.15rem}
  .card-header{padding:1rem 1.15rem}
  .form-actions{flex-direction:column}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:1.5rem}
  .guide-list{grid-template-columns:1fr}
  .pair-grid,.preset-grid,.link-grid{grid-template-columns:1fr}
  .result-card{padding:1.75rem 1.15rem}
  .features-grid{gap:1rem}
  .feature-card{padding:1.25rem}
}

/* ════════════════════════
   DROPDOWN NAV
   ════════════════════════ */
.nav-dropdown{position:relative}
.nav-dropdown>.nav-link{cursor:pointer}
.dropdown-menu{display:none;position:absolute;top:100%;left:0;background:var(--card);border:1px solid var(--border);border-radius:.75rem;box-shadow:0 8px 32px rgba(0,0,0,.12);min-width:220px;padding:.5rem 0;z-index:100;list-style:none}
.nav-dropdown:hover .dropdown-menu,.nav-dropdown:focus-within .dropdown-menu{display:block}
.dropdown-menu li a{display:block;padding:.5rem 1rem;color:var(--text);text-decoration:none;font-size:.9rem;transition:background .15s}
.dropdown-menu li a:hover{background:var(--bg-alt);color:var(--accent)}
.dropdown-divider{border-top:1px solid var(--border);margin:.25rem 0}
@media(max-width:768px){
  .dropdown-menu{position:static;box-shadow:none;border:none;padding-left:1rem;background:transparent}
  .nav-dropdown:hover .dropdown-menu,.nav-dropdown:focus-within .dropdown-menu{display:block}
}

/* ════════════════════════
   HERO CHIPS
   ════════════════════════ */
.hero-chips{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-top:1.25rem}
.hero-chip{display:inline-block;background:rgba(255,255,255,.18);backdrop-filter:blur(4px);color:#fff;border:1px solid rgba(255,255,255,.25);padding:.35rem .85rem;border-radius:2rem;font-size:.85rem;text-decoration:none;transition:all .2s}
.hero-chip:hover{background:rgba(255,255,255,.3);transform:translateY(-1px)}

/* ════════════════════════
   CATEGORY GRID
   ════════════════════════ */
.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1.25rem}
.category-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:1.75rem 1.25rem;background:var(--card);border:1px solid var(--border);border-radius:1rem;text-decoration:none;color:var(--text);transition:all .25s}
.category-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(0,0,0,.08);border-color:var(--accent)}
.category-icon{font-size:2.5rem;margin-bottom:.75rem}
.category-card h3{font-size:1.1rem;margin:0 0 .35rem;color:var(--heading)}
.category-card p{font-size:.87rem;color:var(--muted);margin:0 0 .5rem;line-height:1.45}
.category-count{font-size:.78rem;background:var(--accent);color:#fff;padding:.2rem .65rem;border-radius:1rem;font-weight:600}
.category-nav{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;margin-bottom:1.5rem}
.category-nav p{margin:0;font-size:.9rem;color:var(--muted)}
.category-section{margin-bottom:1rem}

/* ════════════════════════
   ARTICLE META & BADGE
   ════════════════════════ */
.article-meta{margin-bottom:.75rem}
.article-cat{display:inline-block;background:var(--accent);color:#fff;padding:.25rem .75rem;border-radius:1rem;font-size:.8rem;font-weight:600;text-decoration:none;transition:opacity .2s}
.article-cat:hover{opacity:.85}
.badge{display:inline-block;background:var(--accent);color:#fff;padding:.15rem .55rem;border-radius:1rem;font-size:.75rem;font-weight:600;vertical-align:middle;margin-left:.35rem}

/* ════════════════════════
   TRUST SECTION
   ════════════════════════ */
.trust-section{margin:2rem 0}
.trust-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}
.trust-item{display:flex;align-items:center;gap:.75rem;padding:1rem;background:var(--card);border:1px solid var(--border);border-radius:.75rem}
.trust-icon{font-size:1.5rem;flex-shrink:0}
.trust-item p{margin:0;font-size:.88rem;color:var(--muted);line-height:1.4}

/* ════════════════════════
   QUICK CALC GRID
   ════════════════════════ */
.quick-calc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1.15rem}
.quick-calc-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;transition:all var(--transition);position:relative;overflow:hidden}
.quick-calc-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.quick-calc-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent2))}
.quick-calc-header{font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:.75rem}
.quick-calc-details{display:flex;gap:1rem;margin-bottom:1rem;font-size:.82rem;color:var(--muted)}
.quick-calc-details span{background:var(--bg-alt);padding:.2rem .6rem;border-radius:var(--radius-full)}
.quick-calc-result{text-align:center;padding:1rem;background:linear-gradient(135deg,var(--accent2-light),var(--bg-alt));border-radius:var(--radius-sm);margin-bottom:.75rem}
.quick-calc-label{display:block;font-size:.78rem;color:var(--muted);margin-bottom:.25rem;font-weight:500}
.quick-calc-value{display:block;font-size:1.5rem;font-weight:800;color:var(--accent2)}
.quick-calc-link{display:block;text-align:center;font-size:.85rem;font-weight:600;color:var(--accent);text-decoration:none;padding:.5rem;border-radius:var(--radius-sm);transition:all var(--transition)}
.quick-calc-link:hover{background:var(--accent-muted);text-decoration:none}

/* ════════════════════════
   SCENARIO GRID
   ════════════════════════ */
.scenario-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.15rem}
.scenario-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:2rem 1.25rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--text);transition:all var(--transition)}
.scenario-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-4px);text-decoration:none}
.scenario-icon{font-size:2.5rem;margin-bottom:.75rem;width:64px;height:64px;display:flex;align-items:center;justify-content:center;background:var(--accent-light);border-radius:var(--radius-lg)}
.scenario-card h3{font-size:1.05rem;margin-bottom:.35rem;color:var(--text)}
.scenario-card p{font-size:.85rem;color:var(--muted);margin:0;line-height:1.5}

/* ════════════════════════
   CITY GRID
   ════════════════════════ */
.city-grid{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}
.city-card{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:1.25rem 2rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;transition:all var(--transition);min-width:140px}
.city-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-3px);text-decoration:none}
.city-emoji{font-size:2rem}
.city-name{font-size:.95rem;font-weight:600;color:var(--text)}

/* ════════════════════════
   COMPARISON TABLE
   ════════════════════════ */
.comparison-table{border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}
.comparison-table th{background:var(--accent);color:#fff;font-weight:600;text-transform:none;letter-spacing:0;font-size:.85rem}
.comparison-table td{font-size:.9rem;padding:.85rem 1rem}
.comparison-table .highlight-row{background:var(--accent2-light)}
.comparison-table .highlight-row td{font-weight:700;color:var(--accent2)}

/* ════════════════════════
   TIPS GRID
   ════════════════════════ */
.tips-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}
.tip-card{display:flex;gap:.75rem;padding:1.25rem;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);transition:all var(--transition)}
.tip-card:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.tip-num{font-size:1.25rem;flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--accent-light);border-radius:var(--radius-sm)}
.tip-card p{margin:0;font-size:.88rem;color:var(--text-secondary);line-height:1.55}

/* ════════════════════════
   NEWSLETTER SECTION
   ════════════════════════ */
.newsletter-section{background:linear-gradient(135deg,var(--accent-light),var(--bg-alt));border:1px solid var(--accent);border-radius:var(--radius-lg);padding:2.5rem;text-align:center;margin:2rem 0}
.newsletter-content h3{color:var(--accent);font-size:1.25rem;margin-bottom:.5rem}
.newsletter-content p{color:var(--text-secondary);margin-bottom:1.25rem;max-width:500px;margin-left:auto;margin-right:auto}
.newsletter-info{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}
.newsletter-badge{display:inline-flex;align-items:center;gap:.25rem;background:var(--card);border:1px solid var(--border);padding:.35rem .85rem;border-radius:var(--radius-full);font-size:.82rem;font-weight:500;color:var(--accent2)}

/* ════════════════════════
   SECTION GRADIENTS
   ════════════════════════ */
.section-gradient{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-alt) 100%)}
.section-gradient-alt{background:linear-gradient(180deg,var(--bg-alt) 0%,var(--bg) 100%)}

/* ════════════════════════
   ENHANCED FEATURES GRID
   ════════════════════════ */
@media(min-width:900px){
  .features-grid{grid-template-columns:repeat(4,1fr)}
}
@media(min-width:641px) and (max-width:899px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
}

/* ════════════════════════
   ENHANCED RESPONSIVE
   ════════════════════════ */
@media(max-width:640px){
  .quick-calc-grid{grid-template-columns:1fr}
  .scenario-grid{grid-template-columns:1fr}
  .city-grid{justify-content:stretch}
  .city-card{flex:1;min-width:120px;padding:1rem}
  .tips-grid{grid-template-columns:1fr}
  .newsletter-section{padding:1.5rem}
  .comparison-table{font-size:.82rem}
  .comparison-table th,.comparison-table td{padding:.55rem .65rem}
}

/* ════════════════════════
   SMOOTH SCROLLBAR
   ════════════════════════ */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}

/* ════════════════════════
   PRINT
   ════════════════════════ */
@media print{
  .site-header,.site-footer,.ad-slot,.cookie-banner,.theme-toggle,.nav-toggle,.form-actions,.toast-container,.hero-gradient .hero-actions,.stats-bar,.cta-box,.newsletter-section{display:none!important}
  body{background:#fff;color:#000}
  .hero-gradient{background:#f0f0f0!important;color:#000!important;padding:1.5rem 0}
  .hero-gradient h1,.hero-highlight{color:#000!important;-webkit-text-fill-color:#000!important}
  .card{box-shadow:none;border:1px solid #ddd}
  .result-card{background:#e8e8e8!important;color:#000!important}
  .result-card .result-value,.result-card .result-label{color:#000!important}
}