/*
Theme Name: TI-108 Calculator Online
Theme URI: https://ti108calculator.com
Author: TI108Calculator
Description: Free Texas Instruments TI-108 Calculator Online
Version: 7.1.0
License: GNU General Public License v2 or later
Text Domain: ti108calculator
*/

/* ============================================================
   DESIGN TOKENS
============================================================ */
:root {
  /* TI-108 body */
  --ti-blue:       #3a6bbf;
  --ti-blue-lt:    #4878cc;
  --ti-blue-edge:  #1e3f80;

  /* Key colors — exact from physical photos */
  --kr-top:        #cc3333;
  --kr-mid:        #bb2222;
  --kr-bot:        #991111;
  --kr-shadow:     #770000;
  --kr-dot:        rgba(0,0,0,0.20);

  --kw-top:        #f2f2f2;
  --kw-mid:        #e2e2e2;
  --kw-bot:        #cacaca;
  --kw-shadow:     #999999;
  --kw-text:       #1a3570;
  --kw-dot:        rgba(160,160,160,0.45);

  /* LCD */
  --lcd-bg:        #bec4a0;
  --lcd-text:      #1a2600;
  --lcd-bezel:     #111111;

  /* Site */
  --s-bg:          #f4f6f9;
  --s-white:       #ffffff;
  --s-dark:        #0f1b35;
  --s-blue:        #1a4fb5;
  --s-blue-lt:     #e8f0fe;
  --s-text:        #1a1a2e;
  --s-text-sec:    #4a5568;
  --s-text-mu:     #718096;
  --s-border:      #e2e8f0;

  --f-ui:  'Inter', system-ui, sans-serif;
  --f-mono:'Courier New', monospace;

  --r-sm: 4px; --r-md: 8px; --r-lg: 14px; --r-xl: 20px;
}

/* ============================================================ BASE ============================================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--f-ui);background:var(--s-bg);color:var(--s-text);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--s-blue);text-decoration:none}
a:hover{text-decoration:underline}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.2}
p{margin-bottom:.75rem}
p:last-child{margin-bottom:0}
.wrap{width:100%;max-width:1100px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.skip-link{position:absolute;top:-999px;left:16px;background:var(--s-blue);color:#fff;padding:8px 16px;border-radius:var(--r-md);font-size:.875rem;font-weight:600;z-index:9999;transition:top .15s}
.skip-link:focus{top:16px}

/* ============================================================ HEADER ============================================================ */
.site-header{position:sticky;top:0;z-index:200;background:var(--s-white);border-bottom:1px solid var(--s-border);box-shadow:0 1px 6px rgba(0,0,0,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:58px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.logo-icon{width:32px;height:32px;background:var(--s-blue);border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:.55rem;font-weight:900;color:#fff;line-height:1.15;text-align:center;letter-spacing:-.3px}
.logo-text{font-size:.95rem;font-weight:700;color:var(--s-text);line-height:1.1}
.logo-text small{display:block;font-size:.6rem;font-weight:400;color:var(--s-text-mu);letter-spacing:.04em}
.nav{display:flex;gap:2px;align-items:center}
.nav a{font-size:.84rem;font-weight:500;color:var(--s-text-sec);padding:6px 13px;border-radius:var(--r-md);transition:background .12s,color .12s}
.nav a:hover,.nav a.active{background:var(--s-blue-lt);color:var(--s-blue);text-decoration:none}
.menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:22px;height:2px;background:var(--s-text-sec);border-radius:2px;transition:.2s}

/* ============================================================ HERO ============================================================ */
.hero{background:linear-gradient(170deg,#0f1b35 0%,#1a2f6e 55%,#2050a8 100%);padding:28px 0 0;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 20%,rgba(74,127,212,.25) 0%,transparent 65%);pointer-events:none}
.hero-inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;text-align:center}
.hero-badge{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.9);font-size:.73rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;padding:4px 13px;border-radius:99px;margin-bottom:14px}
.hero-badge::before{content:'';width:6px;height:6px;background:#4ade80;border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}
.hero h1{font-size:clamp(1.6rem,3.8vw,2.5rem);font-weight:800;color:#fff;margin-bottom:10px;letter-spacing:-.02em}
.hero h1 span{color:#93c5fd}
.hero-sub{font-size:.95rem;color:rgba(255,255,255,.72);max-width:520px;margin:0 auto 16px;line-height:1.6}
.hero-pills{display:flex;flex-wrap:wrap;justify-content:center;gap:7px;margin-bottom:24px}
.pill{display:inline-flex;align-items:center;gap:5px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.82);font-size:.73rem;font-weight:500;padding:3px 11px;border-radius:99px}
.pill::before{content:'✓';font-size:.65rem;color:#4ade80;font-weight:700}

/* Tool card — white card at bottom of hero */
.tool-card{background:var(--s-white);border-radius:20px 20px 0 0;padding:36px 32px 44px;width:100%;max-width:900px;box-shadow:0 -8px 40px rgba(0,0,0,.22);margin:0 auto}
.calc-layout{display:flex;align-items:flex-start;justify-content:center;gap:36px;flex-wrap:wrap}

/* ============================================================
   TI-108 CALCULATOR — v7 PIXEL PERFECT
   Fixes from annotated screenshots:
   1. Blue dots = ONLY small rect tabs at top-left & top-right corners beside LCD
   2. "TEXAS INSTRUMENTS" font bigger (0.78rem, normal weight)
   3. Solar 4-part panel = taller, clearly visible dark cells
   4. = key label in UPPER-LEFT (not centered)
   5. Official TI logo (Texas silhouette + "ti")
   6. Keypad frame background darker, bigger padding
   7. No full-side dot strips — remove ::before/::after that spanned whole height
============================================================ */
.ti108 {
  position: relative;
  width: 310px;
  flex-shrink: 0;
  background: var(--ti-blue);
  border-radius: 14px 14px 22px 22px;
  padding: 0;
  box-shadow:
    0 8px 0 var(--ti-blue-edge),
    0 10px 32px rgba(0,0,0,.45),
    inset 0 1px 0 rgba(255,255,255,.25);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* ---- TOP SECTION: LCD area with corner dot-tab grips ---- */
/* The blue dots are ONLY on two small rectangular tabs at top corners */
.ti108-top {
  position: relative;
  padding: 12px 12px 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

/* Left corner dot tab — small rectangle beside LCD */
.ti-corner-tab {
  flex-shrink: 0;
  width: 18px;
  align-self: stretch;
  min-height: 52px;
  background-color: #2a55a0;
  background-image: radial-gradient(circle, rgba(120,180,255,0.6) 1.5px, transparent 1.5px);
  background-size: 5px 5px;
  border-radius: 4px;
  box-shadow: inset 0 0 4px rgba(0,0,0,.35);
}

/* LCD wrapper grows to fill remaining width */
.ti-lcd-wrap {
  flex: 1;
  background: var(--lcd-bezel);
  border-radius: 5px;
  padding: 5px;
  box-shadow:
    inset 0 3px 6px rgba(0,0,0,.6),
    0 1px 0 rgba(255,255,255,.07);
}
.ti-lcd {
  background: var(--lcd-bg);
  border-radius: 3px;
  min-height: 52px;
  padding: 5px 10px 4px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-end;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 1px 5px rgba(0,0,0,.18);
}
.ti-lcd::before {
  content:'';position:absolute;top:0;left:0;right:0;height:40%;
  background:linear-gradient(180deg,rgba(255,255,255,.15) 0%,transparent 100%);
  border-radius:3px 3px 0 0;pointer-events:none;
}
.ti-lcd-flags {
  position:absolute;top:5px;left:8px;display:flex;gap:5px;
}
.ti-lcd-flag {
  font-family:var(--f-mono);font-size:.52rem;font-weight:700;
  color:var(--lcd-text);opacity:.15;transition:opacity .12s;
}
.ti-lcd-flag.on{opacity:1}
.ti-lcd-num {
  font-family:var(--f-mono);font-size:2rem;font-weight:700;
  color:var(--lcd-text);text-align:right;line-height:1;
  letter-spacing:.06em;max-width:100%;word-break:break-all;min-height:2rem;
}
.ti-lcd-num.err{color:#8b0000;font-size:1.1rem}

/* ---- BODY SECTION below LCD ---- */
.ti108-body {
  padding: 10px 16px 16px;
}

/* ---- BRAND ROW — FIX: bigger fonts ---- */
/* "TEXAS INSTRUMENTS" bigger, "TI-108" much bigger bold */
.ti-brand-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 5px;
  padding: 0 2px;
}
.ti-brand-name {
  /* FIX: bigger font as annotated "this fonts should be more big" */
  font-family: Arial, Helvetica, sans-serif;
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.95);
}
.ti-model-num {
  /* FIX: bigger bold TI-108 */
  font-family: 'Arial Black', 'Arial Bold', Arial, sans-serif;
  font-size: 1.4rem;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: .02em;
  text-shadow: 0 1px 3px rgba(0,0,0,.3);
}

/* ---- DIVIDER LINE ---- */
.ti-divider {
  height: 1px;
  background: rgba(255,255,255,.25);
  margin-bottom: 9px;
}

/* ---- SOLAR PANEL — FIX: 4 clear cells, taller, more visible ---- */
/* "this is 4-part not show and it should be more big size" */
.ti-solar {
  width: 56%;
  height: 20px;          /* was 14px — now bigger */
  background: #0a0a0a;
  border-radius: 4px;
  margin-bottom: 12px;
  border: 1.5px solid #000;
  box-shadow:
    inset 0 2px 5px rgba(0,0,0,.8),
    0 1px 0 rgba(255,255,255,.06);
  overflow: hidden;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  padding: 3px 4px;
}
.ti-solar-cell {
  background: linear-gradient(160deg, #222222, #0a0a0a);
  border-radius: 2px;
  position: relative;
  border: 1px solid #333;
}
/* Subtle shine on each cell to show they exist */
.ti-solar-cell::after {
  content:'';
  position:absolute;top:0;left:0;right:40%;height:40%;
  background:rgba(255,255,255,.07);
  border-radius:1px;
}

/* ---- KEYPAD FRAME — FIX: bigger padding, better background ---- */
.ti-pad-frame {
  /* FIX: "this background change and size should be as big as physical one" */
  background: #162050;
  border-radius: 12px;
  padding: 12px 10px 14px;
  box-shadow:
    inset 0 3px 10px rgba(0,0,0,.6),
    inset 0 0 0 1.5px rgba(0,0,0,.5),
    0 1px 0 rgba(255,255,255,.05);
}

/* ---- KEYPAD GRID ---- */
.kpad {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* 4-col row: 3 left + 10px gap + 1 right */
.krow-4 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 10px 1fr;
  gap: 6px;
}
.kgap { background:transparent;pointer-events:none;border:none }

/* Rows 5+6 combined — = key spans both */
.krow-56 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 10px 1fr;
  grid-template-rows: 46px 46px;
  gap: 6px;
}

/* ---- BASE KEY ---- */
.k {
  border: none;
  border-radius: 7px;
  cursor: pointer;
  height: 46px;
  /* FIX: labels in upper-left — padding top-left */
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 6px 7px 0;
  line-height: 1;
  position: relative;
  overflow: hidden;
  transition: transform .07s, filter .07s;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.k:active,.k.pressed{
  transform:translateY(2px);
  filter:brightness(.8);
  box-shadow:none !important;
}
.k:focus-visible{outline:2px solid #fff;outline-offset:2px}

/* Key label */
.k-label {
  position: relative;
  z-index: 2;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  font-size: .82rem;
  line-height: 1;
  /* Sits in upper-left per annotations */
}

/* Dot texture in LOWER HALF of every key */
.k::after {
  content:'';
  position:absolute;
  bottom:0;left:0;right:0;
  height: 50%;
  border-radius: 0 0 6px 6px;
  background-image: radial-gradient(circle, var(--dot-color, rgba(0,0,0,.15)) 1.3px, transparent 1.3px);
  background-size: 4.5px 4.5px;
  pointer-events:none;
  z-index:1;
}

/* ---- RED KEY ---- */
.k-r {
  background: linear-gradient(180deg, var(--kr-top) 0%, var(--kr-mid) 40%, var(--kr-bot) 100%);
  color: #fff;
  box-shadow: 0 4px 0 var(--kr-shadow), 0 5px 8px rgba(0,0,0,.3);
  --dot-color: var(--kr-dot);
}
.k-r .k-label { color: #fff; font-size: .82rem }
.k-r:hover { filter: brightness(1.08) }

/* ---- WHITE KEY ---- */
.k-w {
  background: linear-gradient(180deg, var(--kw-top) 0%, var(--kw-mid) 40%, var(--kw-bot) 100%);
  color: var(--kw-text);
  box-shadow: 0 4px 0 var(--kw-shadow), 0 5px 8px rgba(0,0,0,.22);
  --dot-color: var(--kw-dot);
}
.k-w .k-label { color: var(--kw-text); font-size: .95rem; font-weight: 700 }
.k-w:hover { filter: brightness(1.04) }

/* ---- = KEY — FIX: label in UPPER-LEFT not centered ---- */
/* "this equal sign not in upper-left position" */
.r56-eq {
  grid-column: 5;
  grid-row: 1 / span 2;
  height: auto !important;
  /* FIX: upper-left alignment — same as all other keys */
  align-items: flex-start !important;
  justify-content: flex-start !important;
  padding: 6px 7px 0 !important;
  background: linear-gradient(180deg, var(--kr-top) 0%, var(--kr-mid) 40%, var(--kr-bot) 100%);
  color: #fff;
  box-shadow: 0 4px 0 var(--kr-shadow), 0 5px 8px rgba(0,0,0,.3);
  --dot-color: var(--kr-dot);
  border-radius: 7px;
}
.r56-eq .k-label {
  color: #fff;
  font-size: 1rem;
  font-weight: 900;
}
.r56-eq::after { height: 50% }
.r56-eq:active,.r56-eq.pressed{
  transform:translateY(2px);
  filter:brightness(.8);
  box-shadow:0 2px 0 var(--kr-shadow);
}

/* r56 regular cells */
.r56-cell { /* normal grid auto-placement */ }

/* ON/C smaller font */
button[data-k="c"] .k-label { font-size: .68rem !important; font-weight:700 }

/* ---- TI LOGO — FIX: Official Texas-shape "ti" logo ---- */
.ti-logo-row {
  display: flex;
  justify-content: flex-start;
  margin-top: 10px;
  padding-left: 2px;
}

/* ============================================================
   MOBILE FULLSCREEN OVERLAY
============================================================ */
.calc-overlay{
  display:none;position:fixed;inset:0;z-index:999;
  background:linear-gradient(170deg,#0f1b35 0%,#1a2f6e 100%);
  flex-direction:column;align-items:center;justify-content:center;
  padding:16px;overflow-y:auto;
}
.calc-overlay.open{display:flex}
.calc-overlay-close{
  position:fixed;top:14px;right:16px;
  width:38px;height:38px;
  background:rgba(255,255,255,.15);
  border:1.5px solid rgba(255,255,255,.35);
  border-radius:50%;color:#fff;font-size:1.2rem;font-weight:700;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background .15s;z-index:1000;font-family:Arial,sans-serif;
}
.calc-overlay-close:hover{background:rgba(255,255,255,.28)}

/* FIX: Fullscreen button ABOVE calculator on mobile */
.calc-fullscreen-btn{
  display:none;
  background:var(--s-blue);color:#fff;border:none;border-radius:99px;
  padding:10px 22px;font-size:.85rem;font-weight:700;font-family:var(--f-ui);
  cursor:pointer;align-items:center;gap:7px;
  box-shadow:0 4px 16px rgba(26,79,181,.4);
  transition:filter .15s,transform .15s;
  margin: 0 auto 14px; /* ABOVE calculator — margin-bottom */
}
.calc-fullscreen-btn:hover{filter:brightness(1.1);transform:translateY(-1px)}
.calc-fullscreen-btn svg{flex-shrink:0}

/* ============================================================ SIDE PANEL ============================================================ */
.calc-side{flex:1;min-width:210px;max-width:270px;display:flex;flex-direction:column;gap:12px}
.info-box{background:var(--s-bg);border:1px solid var(--s-border);border-radius:var(--r-lg);padding:14px 16px}
.ib-label{font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--s-blue);margin-bottom:8px}
.ib-body{font-size:.82rem;color:var(--s-text-sec);line-height:1.6}
.sc-list{display:flex;flex-direction:column;gap:5px}
.sc-row{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:var(--s-text-sec)}
.sc-row kbd{font-family:var(--f-mono);font-size:.72rem;background:var(--s-white);border:1px solid #cdd6e0;border-radius:4px;padding:2px 7px;color:var(--s-text)}

/* ============================================================ SECTIONS ============================================================ */
.section{padding:64px 0}
.section--white{background:var(--s-white)}
.section--grey{background:var(--s-bg)}
.section--dark{background:linear-gradient(135deg,#0f1b35 0%,#1a2f6e 100%)}
.sec-head{text-align:center;max-width:620px;margin:0 auto 44px}
.sec-tag{font-size:.72rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--s-blue);display:block;margin-bottom:8px}
.sec-h2{font-size:clamp(1.4rem,2.8vw,1.95rem);font-weight:800;color:var(--s-text);margin-bottom:10px;letter-spacing:-.02em}
.section--dark .sec-h2{color:#fff}
.sec-p{font-size:.96rem;color:var(--s-text-sec);line-height:1.7;margin:0}
.section--dark .sec-p{color:rgba(255,255,255,.68)}

.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat-card{background:var(--s-white);border:1px solid var(--s-border);border-radius:var(--r-lg);padding:22px;transition:box-shadow .2s,transform .2s}
.feat-card:hover{box-shadow:0 6px 24px rgba(0,0,0,.1);transform:translateY(-3px)}
.feat-icon{font-size:1.5rem;margin-bottom:10px}
.feat-title{font-size:.95rem;font-weight:700;color:var(--s-text);margin-bottom:6px}
.feat-desc{font-size:.85rem;color:var(--s-text-sec);line-height:1.65;margin:0}

.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{text-align:center;padding:26px 16px 22px;background:var(--s-white);border:1px solid var(--s-border);border-radius:var(--r-lg);position:relative;counter-increment:step}
.step::before{content:counter(step);position:absolute;top:-13px;left:50%;transform:translateX(-50%);width:26px;height:26px;background:var(--s-blue);color:#fff;font-size:.76rem;font-weight:800;border-radius:50%;display:flex;align-items:center;justify-content:center}
.step-icon{font-size:1.6rem;margin-bottom:9px}
.step-title{font-size:.9rem;font-weight:700;color:var(--s-text);margin-bottom:5px}
.step-desc{font-size:.8rem;color:var(--s-text-sec);line-height:1.6;margin:0}

/* ============================================================ FAQ ============================================================ */
.faq-tabs{display:flex;flex-wrap:wrap;gap:7px;justify-content:center;margin-bottom:24px}
.faq-tab{font-size:.8rem;font-weight:600;padding:6px 16px;border-radius:99px;border:1.5px solid var(--s-border);background:var(--s-white);color:var(--s-text-sec);cursor:pointer;transition:.12s;font-family:var(--f-ui)}
.faq-tab:hover,.faq-tab.active{background:var(--s-blue);color:#fff;border-color:var(--s-blue)}
.faq-list{display:flex;flex-direction:column;gap:8px}
.faq-list[hidden]{display:none}
.faq-item{border:1px solid var(--s-border);border-radius:var(--r-md);overflow:hidden;background:var(--s-white);transition:border-color .12s}
.faq-item:hover{border-color:#93c5fd}
.faq-item.open{border-color:var(--s-blue)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;background:none;border:none;cursor:pointer;text-align:left;font-family:var(--f-ui);font-size:.9rem;font-weight:600;color:var(--s-text);transition:background .12s}
.faq-q:hover{background:var(--s-blue-lt)}
.faq-q svg{flex-shrink:0;transition:transform .25s;color:var(--s-blue);width:16px;height:16px}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:500px}
.faq-a-in{padding:12px 18px 16px;font-size:.855rem;color:var(--s-text-sec);line-height:1.75;border-top:1px solid var(--s-border)}

/* ============================================================ CTA ============================================================ */
.cta{background:linear-gradient(135deg,#0f1b35 0%,#1a4fb5 100%);padding:60px 0;text-align:center}
.cta h2{font-size:clamp(1.3rem,2.8vw,1.85rem);font-weight:800;color:#fff;margin-bottom:10px}
.cta p{color:rgba(255,255,255,.7);margin-bottom:26px;font-size:.96rem}
.btn-cta{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--s-blue);font-weight:800;font-size:.9rem;font-family:var(--f-ui);padding:12px 28px;border-radius:99px;box-shadow:0 4px 20px rgba(0,0,0,.2);transition:transform .15s,box-shadow .15s;text-decoration:none}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,0,0,.3);text-decoration:none}

/* ============================================================ FOOTER ============================================================ */
.site-footer{background:var(--s-dark);padding:44px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:32px}
.footer-brand p{font-size:.82rem;color:rgba(255,255,255,.45);margin-top:10px;line-height:1.7}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text small{color:rgba(255,255,255,.35)}
.footer-col-h{font-size:.68rem;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:rgba(255,255,255,.3);margin-bottom:12px}
.footer-col ul{display:flex;flex-direction:column;gap:7px}
.footer-col ul a{font-size:.82rem;color:rgba(255,255,255,.5);text-decoration:none;transition:color .12s}
.footer-col ul a:hover{color:rgba(255,255,255,.85)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:18px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.footer-bottom p{font-size:.75rem;color:rgba(255,255,255,.28);margin:0}
.back-to-top{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;color:rgba(255,255,255,.4);text-decoration:none;transition:color .15s;background:none;border:none;cursor:pointer;font-family:var(--f-ui);padding:0}
.back-to-top:hover{color:rgba(255,255,255,.8);text-decoration:none}

/* ============================================================ LEGAL ============================================================ */
.legal-page{background:var(--s-white);min-height:60vh;padding:60px 0 80px}
.legal-content{max-width:760px;margin:0 auto}
.legal-content h1{font-size:1.8rem;font-weight:800;margin-bottom:6px;color:var(--s-text)}
.legal-content .updated{font-size:.8rem;color:var(--s-text-mu);margin-bottom:32px;display:block}
.legal-content h2{font-size:1.1rem;font-weight:700;color:var(--s-text);margin:28px 0 8px}
.legal-content p{font-size:.92rem;color:var(--s-text-sec);line-height:1.8;margin-bottom:14px}
.legal-content ul{margin:8px 0 14px 20px}
.legal-content ul li{font-size:.92rem;color:var(--s-text-sec);line-height:1.7;margin-bottom:4px;list-style:disc}
.legal-content a{color:var(--s-blue)}

/* ============================================================ RESPONSIVE ============================================================ */
@media(max-width:960px){
  .feat-grid{grid-template-columns:1fr 1fr}
  .steps-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
  .nav{display:none}
  .nav.open{display:flex;flex-direction:column;position:fixed;inset:58px 0 0;background:var(--s-white);padding:16px 20px;z-index:199;gap:3px;border-top:1px solid var(--s-border);overflow-y:auto}
  .nav.open a{font-size:.95rem;padding:10px 14px;border-radius:var(--r-md)}
  .menu-btn{display:flex}
  .tool-card{padding:20px 14px 32px;border-radius:16px 16px 0 0}
  .calc-layout{flex-direction:column;align-items:center}
  .calc-side{max-width:100%;width:100%;min-width:unset}
  /* FIX: fullscreen button ABOVE calculator on mobile */
  .calc-fullscreen-btn{display:inline-flex}
  .ti108{width:290px}
  .feat-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:20px}
  .footer-bottom{flex-direction:column;text-align:center;align-items:center}
}
@media(max-width:480px){
  .ti108{width:270px}
  .steps-grid{grid-template-columns:1fr}
  .hero h1{font-size:1.5rem}
  .k{height:42px}
  .krow-56{grid-template-rows:42px 42px}
}