/* =========================================================
   SRM GPA Calculator — "Gradesheet" Design System
   A calculator theme styled like a graded academic transcript:
   ruled paper, ledger rows, tabular mono numerals, and a
   red-pen "circled total" as the signature moment.
   ========================================================= */
:root{
  --ink:#16233D;
  --ink-soft:#42506B;
  --gray:#6B7488;
  --gray-light:#9BA2B4;
  --bg:#FBFAF6;
  --bg-soft:#F1F2EA;
  --bg-tint:#EDEEE4;
  --paper:#EFF1E9;
  --rule:#D7DAC9;
  --border:#DCDFD1;
  --border-soft:#E8EADE;

  --primary:#A8332A;        /* red-pen ink — primary action colour */
  --primary-dark:#7E241E;
  --primary-light:#F5E4E1;
  --ink-blue:#2A5C8A;        /* muted steel-blue accent */
  --ink-blue-light:#E4EAF1;
  --gold:#B08A3E;            /* honour-roll brass */
  --gold-light:#F3EBD9;
  --maroon:#8A3B4B;
  --maroon-light:#F1E3E6;
  --green:#2F6F4E;           /* pass / verified */
  --green-light:#E3EDE4;
  --teal:#2F6B6E;
  --teal-light:#E1EDEC;
  --purple:#5B4B8A;
  --purple-light:#EAE6F2;
  /* legacy aliases kept so no template edits are required */
  --amber:var(--gold);
  --amber-light:var(--gold-light);
  --pink:var(--maroon);
  --pink-light:var(--maroon-light);
  --blue:var(--ink-blue);
  --blue-light:var(--ink-blue-light);

  --radius-sm:8px;
  --radius:12px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(22,35,61,.06);
  --shadow:0 6px 18px rgba(22,35,61,.08);
  --shadow-lg:0 18px 46px rgba(22,35,61,.14);
  --container:1240px;
  --font: 'IBM Plex Sans', 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
  --font-display: 'Zilla Slab', Georgia, 'Times New Roman', serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;display:block;}
button{font-family:inherit;}
.container{max-width:var(--container);margin:0 auto;padding:0 22px;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;letter-spacing:-.01em;line-height:1.18;}
.mono,.hero-stats b,.stat-bar b,.hc-row span:last-child,.ratio-badge .rb-value,.meta-tag,.calc-form input,.calc-form select,.cgpa-stamp,.ms-scale{font-family:var(--font-mono);}
.accent{color:var(--primary);}
.gradient-text{color:var(--ink);text-decoration:underline;text-decoration-style:wavy;text-decoration-color:var(--primary);text-decoration-thickness:2.5px;text-underline-offset:8px;}
.skip-link{position:absolute;left:-999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;z-index:9999;border-radius:0 0 8px 0;}
.skip-link:focus{left:0;}

/* ---------- Buttons ---------- */
.btn-primary{background:linear-gradient(180deg,#c23d32 0%,var(--primary) 55%,var(--primary-dark) 100%);color:#fff;padding:14px 28px;border-radius:8px;font-weight:700;display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;box-shadow:inset 0 1.5px 0 rgba(255,255,255,.35),0 6px 0 var(--primary-dark);transition:.15s;font-size:15px;}
.btn-primary:hover{transform:translateY(2px);box-shadow:inset 0 1.5px 0 rgba(255,255,255,.35),0 4px 0 var(--primary-dark);}
.btn-outline{background:transparent;color:var(--ink);padding:12.5px 26px;border-radius:8px;font-weight:700;border:1.5px solid var(--ink);display:inline-flex;align-items:center;gap:8px;cursor:pointer;transition:.15s;}
.btn-outline:hover{background:var(--ink);color:#fff;}
.pill{display:inline-flex;align-items:center;gap:6px;background:transparent;color:var(--ink-soft);font-weight:600;font-size:12.5px;padding:6px 0;border-bottom:2px solid var(--gold);}

/* =========================================================
   HEADER
   ========================================================= */
.top-bar{background:var(--ink);color:#c7cfdd;font-size:12.5px;}
.top-bar .container{display:flex;justify-content:space-between;align-items:center;padding:7px 22px;}
.top-bar a{color:#e7eaf2;}
.top-bar .top-links{display:flex;gap:18px;}

.pc-announce-bar{font-size:13px;text-align:center;}
.pc-announce-bar .container{display:flex;justify-content:center;align-items:center;gap:10px;padding:9px 22px;flex-wrap:wrap;}
.pc-announce-bar a{text-decoration:underline;font-weight:700;white-space:nowrap;}

.site-header{position:sticky;top:0;background:rgba(251,250,246,.94);backdrop-filter:saturate(160%) blur(10px);border-bottom:2px solid var(--ink);z-index:200;transition:.2s;}
.site-header.pc-not-sticky{position:static;}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(22,35,61,.08);}
.header-inner{display:flex;align-items:center;gap:24px;padding:14px 0;}
.site-logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:19px;white-space:nowrap;font-family:var(--font-display);}
.site-logo .logo-icon{position:relative;background:linear-gradient(155deg,#e2483c 0%,var(--primary) 46%,var(--primary-dark) 100%);color:#fff;width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;flex:0 0 auto;box-shadow:inset 0 1.5px 0 rgba(255,255,255,.55),inset 0 -8px 12px rgba(0,0,0,.22),0 8px 16px -6px rgba(126,36,30,.55),0 2px 4px rgba(22,35,61,.15);transform:rotate(-4deg);transition:transform .25s cubic-bezier(.34,1.56,.64,1);}
.site-logo:hover .logo-icon{transform:rotate(0deg) translateY(-2px) scale(1.04);}
.site-logo .logo-icon::after{content:"";position:absolute;top:3px;left:5px;width:16px;height:8px;border-radius:50%;background:rgba(255,255,255,.5);filter:blur(2px);}

.main-nav{flex:1;}
.main-nav > ul{display:flex;gap:4px;align-items:center;flex-wrap:wrap;}
.main-nav > ul > li{position:relative;}
.main-nav > ul > li > a{font-weight:600;color:var(--ink-soft);padding:10px 14px;border-radius:8px;display:inline-flex;align-items:center;gap:6px;font-size:14.5px;}
.main-nav > ul > li > a.active,.main-nav > ul > li > a:hover{color:var(--primary);background:var(--primary-light);}

.mega-menu{position:absolute;top:calc(100% + 10px);left:0;background:#fff;border:1.5px solid var(--ink);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:18px;min-width:560px;display:grid;grid-template-columns:repeat(2,1fr);gap:6px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.18s;z-index:50;}
.has-mega:hover .mega-menu,.has-mega:focus-within .mega-menu{opacity:1;visibility:visible;transform:translateY(0);}
.mega-menu a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;font-size:14px;font-weight:600;color:var(--ink-soft);}
.mega-menu a:hover{background:var(--bg-soft);color:var(--primary);}
.mega-menu .mm-ico{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:14px;flex:0 0 auto;box-shadow:inset 0 1.5px 0 rgba(255,255,255,.6),inset 0 -6px 8px rgba(0,0,0,.10),0 5px 8px -5px rgba(22,35,61,.4);}

.header-actions{display:flex;align-items:center;gap:10px;}
.header-search{position:relative;display:flex;align-items:center;}
.header-search input{width:0;opacity:0;padding:0;border:0;transition:.2s;font-size:14px;background:var(--bg-soft);border-radius:8px;}
.header-search.open input{width:190px;opacity:1;padding:9px 12px;margin-right:6px;border:1.5px solid var(--ink);}
.icon-btn{width:40px;height:40px;border-radius:8px;border:1.5px solid var(--ink);background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-soft);flex:0 0 auto;}
.icon-btn:hover{background:var(--ink);color:#fff;}
.nav-toggle{display:none;}

/* =========================================================
   HERO
   ========================================================= */
.hero{position:relative;padding:60px 0 56px;overflow:hidden;background:var(--paper);
  background-image:repeating-linear-gradient(var(--paper) 0 27px, var(--rule) 27px 28px);
}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(560px 340px at 6% -10%, rgba(168,51,42,.08), transparent 60%),
  radial-gradient(480px 320px at 100% 20%, rgba(42,92,138,.08), transparent 60%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;}
.hero h1{font-size:44px;margin:14px 0 16px;font-weight:700;}
.hero p{color:var(--ink-soft);font-size:17px;max-width:540px;}
.search-box{display:flex;background:#fff;border:2px solid var(--ink);border-radius:10px;overflow:hidden;margin-top:24px;max-width:560px;box-shadow:4px 4px 0 var(--ink);}
.search-box input{flex:1;border:0;padding:17px 18px;font-size:15px;outline:none;background:transparent;}
.search-box button{background:var(--primary);border:0;color:#fff;padding:0 24px;cursor:pointer;font-size:16px;}
.trust-row{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap;color:var(--ink-soft);font-size:13px;font-weight:600;}
.trust-row span{display:flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--border);padding:7px 13px;border-radius:99px;}
.hero-stats{display:flex;gap:30px;margin-top:28px;}
.hero-stats div b{display:block;font-size:24px;color:var(--ink);font-weight:700;}
.hero-stats div span{font-size:12.5px;color:var(--gray);}
.hero-visual{position:relative;}

/* --- Signature element: the graded transcript card --- */
.hero-card{background:#fff;border:1.5px solid var(--ink);border-radius:var(--radius);box-shadow:6px 6px 0 rgba(22,35,61,.9),0 30px 50px -20px rgba(22,35,61,.35);padding:0;position:relative;z-index:2;transform-style:preserve-3d;will-change:transform;transition:transform .35s cubic-bezier(.22,1,.36,1);}
.hero-card .ms-head{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:2px solid var(--ink);}
.hero-card .ms-head .ms-label{font-weight:700;font-size:14px;font-family:var(--font-display);}
.hero-card .ms-head .ms-scale{font-size:10.5px;color:var(--gray);letter-spacing:.04em;}
.hero-card .hc-body{padding:18px 20px 22px;}
.hero-card .hc-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px dashed var(--border);font-size:13.5px;font-weight:600;color:var(--ink-soft);}
.hero-card .hc-row:last-child{border-bottom:0;}
.hero-card .hc-badge{background:var(--green-light);color:var(--green);font-size:12px;font-weight:700;padding:4px 10px;border-radius:99px;}
.ms-total{display:flex;justify-content:space-between;align-items:center;border-top:3px double var(--ink);margin-top:6px;padding-top:14px;}
.ms-total > span:first-child{font-weight:700;font-size:14px;font-family:var(--font-display);}
.cgpa-stamp{position:relative;display:inline-flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:50%;background:linear-gradient(150deg,#fff 0%,var(--primary-light) 55%,#fff 100%);border:3px solid var(--primary);color:var(--primary);font-weight:700;font-size:18px;transform:rotate(-8deg);box-shadow:0 10px 18px -8px rgba(168,51,42,.55),inset 0 2px 3px rgba(255,255,255,.9),inset 0 -3px 6px rgba(168,51,42,.18);}
.floating-chip{position:absolute;background:#fff;border:1.5px dashed var(--ink-soft);box-shadow:var(--shadow);border-radius:99px;padding:9px 14px;font-size:12.5px;font-weight:700;display:flex;align-items:center;gap:8px;z-index:3;}
.chip-1{top:-16px;right:-10px;transform:rotate(4deg);}
.chip-2{bottom:-16px;left:-18px;transform:rotate(-3deg);}

/* =========================================================
   SECTIONS / GRIDS
   ========================================================= */
.section{padding:64px 0;}
.section-tight{padding:40px 0;}
.section-head{text-align:center;max-width:640px;margin:0 auto 40px;}
.section-title{margin:0 0 10px;font-size:30px;font-weight:700;}
.section-sub{color:var(--gray);margin:0;font-size:16px;}
.section-head-row{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:30px;gap:20px;}
.section-head-row h2{font-size:26px;margin:0 0 8px;font-weight:700;}
.section-head-row p{margin:0;color:var(--gray);}

.card-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;}
.card-grid.cols-3{grid-template-columns:repeat(3,1fr);}
.card-grid.cols-4{grid-template-columns:repeat(4,1fr);}
.card-grid.cat-grid{grid-template-columns:repeat(6,1fr);}

.calc-card{border:1.5px solid var(--border);border-radius:var(--radius);padding:24px 18px;text-align:center;transition:.15s;background:#fff;position:relative;}
.calc-card:hover{box-shadow:5px 5px 0 var(--ink);transform:translate(-2px,-2px);border-color:var(--ink);}
.calc-icon{position:relative;width:54px;height:54px;border-radius:15px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px;transition:transform .25s cubic-bezier(.34,1.56,.64,1);box-shadow:inset 0 1.5px 0 rgba(255,255,255,.65),inset 0 -10px 14px rgba(0,0,0,.10),0 10px 16px -8px rgba(22,35,61,.35);}
.calc-icon::after{content:"";position:absolute;top:4px;left:7px;width:18px;height:9px;border-radius:50%;background:rgba(255,255,255,.55);filter:blur(2px);pointer-events:none;}
.calc-card:hover .calc-icon{transform:translateY(-4px) rotate(-3deg) scale(1.05);}
.calc-card h3{font-size:15.5px;margin:0 0 8px;font-weight:700;}
.calc-card p{font-size:13.5px;color:var(--gray);margin:0 0 16px;min-height:36px;font-family:var(--font);}
.calc-link{color:var(--primary);font-weight:700;font-size:13.5px;}

.icon-green{background:linear-gradient(150deg,#5fb98a 0%,var(--green) 65%,#1f4d36 100%);color:#fff;}
.icon-blue{background:linear-gradient(150deg,#6fa2cf 0%,var(--ink-blue) 65%,#173c5c 100%);color:#fff;}
.icon-purple{background:linear-gradient(150deg,#8f7fc4 0%,var(--purple) 65%,#3b2f61 100%);color:#fff;}
.icon-orange{background:linear-gradient(150deg,#d6b467 0%,var(--gold) 65%,#7a5c25 100%);color:#fff;}
.icon-pink{background:linear-gradient(150deg,#c4707f 0%,var(--maroon) 65%,#5c2530 100%);color:#fff;}
.icon-teal{background:linear-gradient(150deg,#5fa5a8 0%,var(--teal) 65%,#1c4143 100%);color:#fff;}

/* Category tiles — styled like library card-catalogue cards */
.cat-tile{border:1.5px solid var(--border);border-radius:var(--radius);padding:28px 16px;text-align:center;background:#fff;transition:.15s;display:block;position:relative;}
.cat-tile::before{content:"";position:absolute;top:0;left:22px;width:26px;height:10px;background:var(--gold-light);border:1.5px solid var(--border);border-top:0;border-radius:0 0 6px 6px;}
.cat-tile:hover{box-shadow:5px 5px 0 var(--ink);transform:translate(-2px,-2px);border-color:var(--ink);}
.cat-tile h3{margin:14px 0 4px;font-size:15.5px;font-weight:700;}
.cat-tile p{margin:0;font-size:13px;color:var(--gray);font-family:var(--font-mono);}

/* How it works — a genuine 3-step sequence, numbered as grade stamps */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step-card{background:#fff;border:1.5px solid var(--border);border-radius:var(--radius);padding:26px;position:relative;}
.step-num{width:38px;height:38px;border-radius:50%;background:linear-gradient(150deg,#fff 0%,var(--primary-light) 60%,#fff 100%);border:2.5px solid var(--primary);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:16px;font-family:var(--font-mono);box-shadow:0 8px 14px -8px rgba(168,51,42,.5),inset 0 2px 2px rgba(255,255,255,.9);}
.step-card h3{font-size:16.5px;margin:0 0 8px;font-weight:700;}
.step-card p{font-size:14px;color:var(--gray);margin:0;}

/* Why choose */
.why-box{background:#fff;border:1.5px solid var(--ink);border-radius:var(--radius-lg);padding:44px;display:grid;grid-template-columns:1.3fr .9fr;gap:36px;align-items:center;}
.why-box h2{font-size:26px;margin:0 0 22px;font-weight:700;}
.why-list{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.why-item{display:flex;gap:14px;}
.why-item .dot{width:38px;height:38px;border-radius:10px;background:linear-gradient(150deg,#fff 0%,var(--bg-soft) 70%);border:1px solid var(--border);flex:0 0 38px;display:flex;align-items:center;justify-content:center;font-size:15px;box-shadow:inset 0 1.5px 0 rgba(255,255,255,.8),0 6px 12px -7px rgba(22,35,61,.35);}
.why-item h4{margin:0 0 4px;font-size:14.5px;font-weight:700;font-family:var(--font-display);}
.why-item p{margin:0;font-size:13px;color:var(--gray);}
.why-visual{background:var(--bg-soft);border-radius:var(--radius);border:1.5px solid var(--border);padding:22px;}

/* Stat bar */
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;background:var(--ink);border-radius:var(--radius-lg);padding:34px;color:#fff;}
.stat-bar div{text-align:center;}
.stat-bar b{display:block;font-size:28px;font-weight:700;color:#fff;}
.stat-bar span{font-size:12.5px;color:#a9b1c8;font-family:var(--font);}

/* Articles / guides */
.article-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;}
.article-card{border:1.5px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.15s;}
.article-card:hover{box-shadow:5px 5px 0 var(--ink);transform:translate(-2px,-2px);border-color:var(--ink);}
.article-card .a-thumb{height:130px;width:100%;object-fit:cover;background:linear-gradient(135deg,var(--primary-light),var(--gold-light));}
.article-card .a-body{padding:16px;}
.article-card .a-cat{font-size:11px;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:.04em;}
.article-card h4{font-size:14.5px;margin:8px 0 8px;line-height:1.35;font-weight:700;}
.article-card .date{font-size:12px;color:var(--gray);margin-bottom:8px;font-family:var(--font-mono);}
.article-card a.read-more{color:var(--primary);font-size:13px;font-weight:700;}
.view-all-wrap{text-align:center;margin-top:34px;}

/* CTA band */
.cta-band{background:var(--ink);border-radius:var(--radius-lg);padding:48px;text-align:center;color:#fff;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(rgba(255,255,255,.03) 0 27px, rgba(255,255,255,.06) 27px 28px);pointer-events:none;}
.cta-band h2{font-size:27px;margin:0 0 10px;font-weight:700;position:relative;}
.cta-band p{margin:0 0 24px;color:#c7cfdd;position:relative;}
.cta-band .btn-primary{background:#fff;color:var(--primary);box-shadow:0 6px 0 rgba(0,0,0,.2);position:relative;}
.cta-band .btn-primary:hover{box-shadow:0 4px 0 rgba(0,0,0,.2);}

/* =========================================================
   BREADCRUMB
   ========================================================= */
.breadcrumb{font-size:13px;color:var(--gray);padding:16px 0;font-family:var(--font-mono);}
.breadcrumb a{color:var(--ink-soft);font-weight:600;}
.breadcrumb a:hover{color:var(--primary);}

/* =========================================================
   PAGE HEADER (category / archive)
   ========================================================= */
.page-hero{padding:38px 0 30px;background:var(--paper);background-image:repeating-linear-gradient(var(--paper) 0 27px, var(--rule) 27px 28px);}
.page-hero h1{font-size:30px;margin:0 0 10px;font-weight:700;}
.page-hero p{color:var(--ink-soft);max-width:720px;margin:0;font-size:15.5px;}
.filter-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.filter-chips a{background:#fff;border:1.5px solid var(--border);padding:8px 15px;border-radius:99px;font-size:13.5px;font-weight:700;color:var(--ink-soft);}
.filter-chips a.is-active,.filter-chips a:hover{background:var(--ink);color:#fff;border-color:var(--ink);}

/* =========================================================
   CONTENT LAYOUT (archive / blog with sidebar)
   ========================================================= */
.content-layout{display:grid;grid-template-columns:2.4fr .9fr;gap:36px;padding:40px 0;align-items:start;}
.content-layout.no-sidebar{grid-template-columns:minmax(0,820px);max-width:820px;margin:0 auto;justify-content:center;}
.sidebar-widget{border:1.5px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:22px;background:#fff;}
.sidebar-widget h3{margin:0 0 14px;font-size:14.5px;font-weight:700;}
.sidebar-widget ul li{padding:9px 0;border-bottom:1px dashed var(--border);font-size:14px;}
.sidebar-widget ul li a{font-weight:600;color:var(--ink-soft);}
.sidebar-widget ul li a:hover{color:var(--primary);}
.sidebar-widget ul li:last-child{border-bottom:0;}
.sidebar-widget ul li .count{color:var(--gray-light);font-size:12px;float:right;font-family:var(--font-mono);}
.ad-slot{border:1.5px dashed var(--border);border-radius:var(--radius);padding:26px;text-align:center;color:var(--gray-light);font-size:12.5px;margin-bottom:22px;background:var(--bg-soft);}

/* =========================================================
   SINGLE CALCULATOR PAGE — sticky tool + guide layout
   ========================================================= */
.calc-hero{padding:30px 0 18px;background:var(--paper);background-image:repeating-linear-gradient(var(--paper) 0 27px, var(--rule) 27px 28px);}
.calc-hero-top{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap;}
.calc-hero h1{font-size:28px;margin:8px 0 10px;font-weight:700;max-width:760px;}
.calc-hero .lede{color:var(--ink-soft);max-width:760px;font-size:15.5px;margin:0;}
.calc-meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.meta-tag{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1.5px solid var(--border);padding:7px 13px;border-radius:99px;font-size:12.5px;font-weight:700;color:var(--ink-soft);}
.ratio-badge{background:var(--ink);color:#fff;border-radius:var(--radius-sm);padding:12px 18px;text-align:center;flex:0 0 auto;}
.ratio-badge .rb-label{font-size:11px;color:#a9b1c8;display:block;margin-bottom:2px;font-family:var(--font);}
.ratio-badge .rb-value{font-size:17px;font-weight:700;}

.calc-layout{display:flex;flex-direction:column;gap:32px;padding:36px 0 30px;}
.calc-sticky-col{position:relative;min-width:0;width:100%;}
.guide-col{min-width:0;width:100%;max-width:820px;}

.calc-tool-card{background:#fff;border:1.5px solid var(--ink);border-radius:var(--radius-lg);box-shadow:6px 6px 0 rgba(22,35,61,.9);padding:0;overflow:hidden;}
.calc-tool-card .ctc-head{padding:18px 24px;background:var(--ink);color:#fff;}
.calc-tool-card .ctc-head h2{margin:0;font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px;font-family:var(--font-display);}
.calc-tool-card .ctc-body{padding:24px;}
.calc-tool-card .ctc-foot{padding:16px 24px;border-top:1px solid var(--border-soft);display:flex;justify-content:space-between;align-items:center;background:var(--bg-soft);}
.share-btn{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--ink-soft);background:#fff;border:1.5px solid var(--border);padding:8px 14px;border-radius:99px;cursor:pointer;}
.share-btn:hover{color:var(--primary);border-color:var(--primary);}

/* Calculator internal UI (kept compatible with assets/js/calculators.js selectors) */
.calc-app{border:0;border-radius:0;padding:0;}
.calc-app h1{font-size:19px;margin:0 0 6px;font-family:var(--font-display);}
.calc-app .desc{color:var(--gray);margin-bottom:18px;font-size:13.5px;font-family:var(--font);}
.calc-form label{display:block;font-size:12px;font-weight:700;margin:14px 0 6px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.03em;font-family:var(--font);}
.calc-form input,.calc-form select{width:100%;padding:12px 14px;border:1.5px solid var(--border);border-radius:8px;font-size:14.5px;background:var(--bg-soft);}
.calc-form input:focus,.calc-form select:focus{outline:2px solid var(--primary-light);border-color:var(--primary);background:#fff;}
.calc-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.calc-btn,.pc-calculate{margin-top:20px;background:var(--primary);color:#fff;border:0;padding:14px 26px;border-radius:8px;font-weight:700;cursor:pointer;font-size:15px;width:100%;box-shadow:0 6px 0 var(--primary-dark);font-family:var(--font);}
.calc-btn:hover,.pc-calculate:hover{transform:translateY(2px);box-shadow:0 4px 0 var(--primary-dark);}
.calc-result{margin-top:20px;background:var(--bg-soft);border:1.5px solid var(--border);border-radius:8px;padding:18px;font-size:14.5px;display:none;}
.calc-result.show{display:block;}
.dynamic-persons{margin-top:10px;}
.dynamic-persons .person-row{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;margin-bottom:10px;}
.remove-row{background:var(--maroon-light);color:var(--maroon);border:0;border-radius:8px;cursor:pointer;width:38px;}
.add-row-btn{background:var(--primary-light);color:var(--primary);border:1.5px dashed var(--primary);padding:11px;border-radius:8px;width:100%;cursor:pointer;font-weight:700;font-size:13.5px;font-family:var(--font);}

/* Guide / article column */
.guide-content{font-size:16px;color:var(--ink-soft);max-width:820px;font-family:var(--font);}
.guide-content h2{font-size:23px;font-weight:700;color:var(--ink);margin:38px 0 14px;scroll-margin-top:100px;font-family:var(--font-display);}
.guide-content h3{font-size:18px;font-weight:700;color:var(--ink);margin:26px 0 12px;scroll-margin-top:100px;font-family:var(--font-display);}
.guide-content p{margin:0 0 16px;}
.guide-content ul{margin:0 0 18px;padding-left:22px;list-style:disc;}
.guide-content ol{margin:0 0 18px;padding-left:22px;list-style:decimal;}
.guide-content li{margin-bottom:8px;}
.guide-content li::marker{color:var(--primary);}
.guide-content a{color:var(--primary);font-weight:600;text-decoration:underline;text-decoration-color:var(--primary-light);text-underline-offset:3px;}
.guide-content a:hover{color:var(--primary-dark);text-decoration-color:var(--primary);}
.calc-app .desc a{color:var(--primary);font-weight:600;}
.guide-content strong{color:var(--ink);}
.guide-content table{width:100%;border-collapse:collapse;margin:20px 0 26px;font-size:14.5px;font-family:var(--font-mono);}
.guide-content th{background:var(--ink);color:#fff;text-align:left;padding:12px 14px;font-weight:700;}
.guide-content td{padding:12px 14px;border-bottom:1px solid var(--border-soft);}
.guide-content tr:nth-child(even) td{background:var(--bg-soft);}
.guide-content blockquote{margin:20px 0;padding:16px 20px;background:var(--bg-soft);border-left:4px solid var(--primary);border-radius:0 8px 8px 0;font-style:normal;}
.guide-content img{border-radius:var(--radius);margin:18px 0;}
.callout{border:1.5px solid var(--border);background:var(--teal-light);border-radius:var(--radius);padding:18px 20px;margin:22px 0;display:flex;gap:14px;}
.callout .c-ico{font-size:20px;}
.callout.warn{background:var(--gold-light);}

.faq-item{border-bottom:1px solid var(--border-soft);padding:16px 0;}
.faq-item summary{font-weight:700;cursor:pointer;font-size:15px;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:10px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:'+';font-size:20px;color:var(--primary);flex:0 0 auto;}
.faq-item[open] summary::after{content:'−';}
.faq-item p{margin:12px 0 0;color:var(--gray);font-size:14.5px;}

.related-section{padding:20px 0 10px;border-top:1px solid var(--border-soft);margin-top:20px;}

/* Author box (shown after every article + after calculator guides) */
.author-box{display:flex;gap:22px;background:var(--bg-soft);border:1.5px solid var(--border);border-radius:var(--radius-lg);padding:28px;margin:34px 0;}
.author-box .ab-avatar{width:80px;height:80px;border-radius:50%;object-fit:cover;flex:0 0 80px;}
.author-box .ab-eyebrow{font-size:11.5px;font-weight:700;letter-spacing:.05em;color:var(--primary);text-transform:uppercase;}
.author-box h4{margin:4px 0 10px;font-size:18px;font-weight:700;color:var(--ink);}
.author-box p{margin:0 0 12px;color:var(--gray);font-size:14.5px;line-height:1.65;}
.author-box .ab-links{display:flex;gap:20px;flex-wrap:wrap;}
.author-box .ab-links a{color:var(--primary);font-weight:700;font-size:13.5px;}
.author-box .ab-links a:hover{color:var(--primary-dark);}
@media(max-width:600px){
  .author-box{flex-direction:column;text-align:center;align-items:center;}
  .author-box .ab-links{justify-content:center;}
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{background:var(--ink);color:#c7cfdd;padding:56px 0 22px;margin-top:50px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;}
.footer-grid.pc-cols-1{grid-template-columns:1fr;}
.footer-grid.pc-cols-2{grid-template-columns:1.4fr 1fr;}
.footer-grid.pc-cols-3{grid-template-columns:1.4fr 1fr 1fr;}
.footer-grid h4{color:#fff;font-size:14px;margin:0 0 16px;text-transform:uppercase;letter-spacing:.03em;font-family:var(--font);}
.footer-grid ul li{margin-bottom:11px;font-size:14px;}
.footer-grid ul li a:hover{color:#fff;}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px;font-family:var(--font-display);}
.footer-logo .logo-icon{background:transparent;color:#fff;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;border:2px dashed var(--gold);transform:rotate(-6deg);}
.footer-logo img{max-height:36px;width:auto;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#c7cfdd;transition:.2s;flex:0 0 auto;}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-2px);}
.footer-social .dashicons{font-size:16px;width:16px;height:16px;}
.footer-bottom{border-top:1px solid #2A3550;margin-top:38px;padding-top:20px;display:flex;justify-content:space-between;font-size:13px;color:#8791ac;flex-wrap:wrap;gap:10px;}

.back-to-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(10px);transition:.2s;z-index:150;cursor:pointer;border:0;}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0);}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media(max-width:1080px){
  .card-grid,.card-grid.cat-grid{grid-template-columns:repeat(3,1fr);}
  .article-grid{grid-template-columns:repeat(3,1fr);}
  .steps-grid{grid-template-columns:1fr;}
  .stat-bar{grid-template-columns:repeat(2,1fr);gap:26px;}
}
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;}
  .why-box{grid-template-columns:1fr;}
  .content-layout{grid-template-columns:1fr;}
  .footer-grid,.footer-grid.pc-cols-2,.footer-grid.pc-cols-3{grid-template-columns:1fr 1fr;}
  .footer-grid.pc-cols-1{grid-template-columns:1fr;}
  .mega-menu{position:static;box-shadow:none;border:0;padding:6px 0 6px 16px;min-width:0;opacity:1;visibility:visible;transform:none;display:none;grid-template-columns:1fr;}
  .has-mega.open .mega-menu{display:grid;}
}
@media(max-width:760px){
  .main-nav{position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;padding:90px 24px 24px;transform:translateX(100%);transition:.25s;overflow-y:auto;z-index:190;}
  .main-nav.open{transform:translateX(0);}
  .main-nav > ul{flex-direction:column;align-items:stretch;gap:2px;}
  .main-nav > ul > li > a{padding:14px 10px;font-size:16px;}
  .nav-toggle{display:flex;}
  .header-search.open input{width:130px;}
  .card-grid,.card-grid.cat-grid,.article-grid{grid-template-columns:1fr 1fr;}
  .card-grid.cols-3{grid-template-columns:1fr 1fr;}
  .hero h1{font-size:32px;}
  .section-title{font-size:25px;}
  .why-list{grid-template-columns:1fr;}
  .stat-bar{grid-template-columns:1fr 1fr;}
  .calc-hero h1{font-size:23px;}
  .cta-band{padding:34px 22px;}
}
@media(max-width:520px){
  .card-grid,.card-grid.cat-grid,.article-grid,.card-grid.cols-3{grid-template-columns:1fr 1fr;}
  .trust-row span{font-size:12px;padding:6px 10px;}
  .calc-row{grid-template-columns:1fr;}
  .dynamic-persons .person-row{grid-template-columns:1fr;}
  .calc-tool-card .ctc-body{padding:18px;}
  .calc-hero-top{flex-direction:column;}
  .ratio-badge{align-self:flex-start;}
}