/* ============================================================
   tools.css — Shared design system for FP4YA interactive tool pages
   Extracted from /guide/general-principles.html and /guide/index.html
   Used by: /resources/financial-report-card.html
            /resources/investment-rebalance-calculator.html
            /resources/rent-vs-buy.html
   ============================================================ */

/* RESET */
*{box-sizing:border-box;margin:0;padding:0}

/* CSS VARIABLES */
:root{
  --green:#2d6a4f;--green-dk:#1b4332;--green-lt:#40916c;
  --yellow:#ffba08;--yellow-lt:#ffd60a;
  --cream:#fff8e7;--cream-dk:#f0e9d2;
  --slate:#2f3e46;--mint:#95d5b2;--mint-lt:#d8f3dc;
  --text:#2f3e46;--text-lt:#52616b;
  --red:#e63946;--red-lt:#fde8ea;
  --border:#dde8dd;--white:#fff;
  --shadow:0 2px 10px rgba(47,62,70,.09);
  --shadow-lg:0 4px 24px rgba(47,62,70,.13);
  --r:12px;--rs:8px;
}

/* BASE */
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--cream);color:var(--text);line-height:1.6}

/* HEADER */
.hdr{background:var(--green);position:-webkit-sticky;position:sticky;top:0;z-index:100;box-shadow:0 2px 14px rgba(0,0,0,.18);will-change:transform;backface-visibility:hidden}
.hdr-inner{max-width:1200px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:12px}
.logo-badge{background:var(--yellow);color:var(--slate);font-weight:800;font-size:13px;padding:4px 10px;border-radius:6px;letter-spacing:.5px;white-space:nowrap;transition:opacity .2s,transform .2s}
.logo-badge:hover{opacity:.85;transform:translateY(-1px)}
.logo-text{color:#fff;font-size:16px;font-weight:700;line-height:1.3}
.logo-sub{color:rgba(255,255,255,.7);font-size:12px;font-weight:400}

/* HEADER ACTIONS */
.hdr-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.hamburger{display:none;background:rgba(255,255,255,.15);color:#fff;border:none;padding:8px 12px;border-radius:8px;font-size:20px;cursor:pointer;line-height:1;align-items:center;justify-content:center;transition:background .2s;flex-shrink:0}
.hamburger:hover{background:rgba(255,255,255,.28)}
.hdr-drop{display:none;flex-direction:column;gap:8px;padding:12px 16px 14px;background:var(--green-dk);border-top:1px solid rgba(255,255,255,.12)}
.hdr-drop.open{display:flex}
.hdr-drop button{width:100%;text-align:center;justify-content:center}

/* SECTION NAV */
.snav{background:var(--green-dk);border-bottom:3px solid var(--yellow)}
.snav-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;overflow-x:auto;gap:0;scrollbar-width:none;touch-action:pan-x;overscroll-behavior-x:contain}
.snav-inner::-webkit-scrollbar{display:none}
.nav-a{color:rgba(255,255,255,.55);padding:11px 16px;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap;border-bottom:3px solid transparent;margin-bottom:-3px;transition:all .2s;text-decoration:none;display:block}
.nav-a:hover{color:#fff}
.nav-a.active{color:var(--yellow);border-bottom-color:var(--yellow)}
.nav-a.locked{opacity:.4;cursor:default;pointer-events:none}

/* MAIN */
.main{max-width:1200px;margin:0 auto;padding:32px 24px 80px}
.intro[id]{scroll-margin-top:90px}

/* INTRO BANNER */
.intro{background:#fff;border-radius:var(--r);padding:30px 32px;margin-bottom:28px;border-left:5px solid var(--green);box-shadow:var(--shadow)}
.intro h1{font-size:32px;line-height:1.2;color:var(--green);margin-bottom:10px}
.intro p{color:var(--text-lt);font-size:15px;max-width:800px}
.sec-badge{display:inline-block;background:var(--mint-lt);color:var(--green);font-weight:700;font-size:11px;padding:3px 10px;border-radius:20px;margin-bottom:10px;text-transform:uppercase;letter-spacing:1px}

/* TOOL CARDS */
.card{background:#fff;border-radius:var(--r);padding:26px 28px;margin-bottom:22px;box-shadow:var(--shadow);border:1px solid var(--border)}
.card-hdr{display:flex;align-items:flex-start;gap:14px;margin-bottom:6px}
.card-icon{width:40px;height:40px;min-width:40px;border-radius:10px;background:var(--green);display:flex;align-items:center;justify-content:center;font-size:20px}
.card-title{font-size:18px;font-weight:700;color:var(--slate);line-height:1.3}
.card-desc{font-size:13px;color:var(--text-lt);margin-top:2px}
.card-intro{color:var(--text-lt);font-size:14px;margin-bottom:20px;line-height:1.65;margin-top:14px}

/* FORM ROWS */
.frow{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.frow.one{grid-template-columns:1fr}
.frow.three{grid-template-columns:1fr 1fr 1fr}
.frow.four{grid-template-columns:1fr 1fr 1fr 1fr}
.fg{display:flex;flex-direction:column;gap:5px}
.fg label{font-size:12px;font-weight:700;color:var(--text-lt);text-transform:uppercase;letter-spacing:.5px}

/* INPUTS */
input[type=number],input[type=text],input[type=month],select{padding:9px 13px;border:2px solid var(--border);border-radius:var(--rs);font-size:14px;color:var(--text);background:var(--cream);width:100%;transition:border-color .2s}
input:focus,select:focus{outline:none;border-color:var(--green);background:#fff}

/* PREFIX / SUFFIX WRAPPERS */
.pfx{position:relative}
.pfx span{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--text-lt);font-size:13px;pointer-events:none}
.pfx input{padding-left:24px}
.sfx{position:relative}
.sfx span{position:absolute;right:11px;top:50%;transform:translateY(-50%);color:var(--text-lt);font-size:13px;pointer-events:none}
.sfx input{padding-right:28px}

/* RESULTS BOXES */
.rbox{background:var(--mint-lt);border-radius:var(--rs);padding:18px 20px;margin-top:18px;border:1px solid var(--mint)}
.rbox.warn{background:#fff8e1;border-color:var(--yellow)}
.rbox.bad{background:var(--red-lt);border-color:var(--red)}
.rlbl{font-size:11px;font-weight:700;color:var(--green);text-transform:uppercase;letter-spacing:1px;margin-bottom:3px}
.rbox.warn .rlbl{color:#b07d00}
.rbox.bad .rlbl{color:var(--red)}
.rval{font-size:30px;font-weight:900;color:var(--green);line-height:1.2}
.rbox.warn .rval{color:#b07d00}
.rbox.bad .rval{color:var(--red)}
.rsub{font-size:13px;color:var(--text-lt);margin-top:4px}
.rgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-top:18px}
.rmini{background:var(--cream-dk);border-radius:var(--rs);padding:12px 14px;text-align:center}
.rmini .v{font-size:20px;font-weight:900;color:var(--green);display:block}
.rmini .l{font-size:11px;color:var(--text-lt);margin-top:2px}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:var(--rs);font-size:13px;font-weight:600;cursor:pointer;border:none;transition:all .2s}
.btn-g{background:var(--green);color:#fff}
.btn-g:hover{background:var(--green-dk)}
.btn-y{background:var(--yellow);color:var(--slate)}
.btn-y:hover{background:var(--yellow-lt)}
.btn-print{background:var(--yellow);color:var(--slate);border:none;padding:8px 18px;border-radius:8px;font-weight:700;font-size:14px;cursor:pointer;white-space:nowrap;transition:all .2s}
.btn-print:hover{background:var(--yellow-lt);transform:translateY(-1px)}
.btn-del{background:transparent;color:var(--red);border:1px solid var(--red);padding:5px 9px;font-size:12px;border-radius:5px;cursor:pointer}
.btn-del:hover{background:var(--red-lt)}
.btn-add{background:var(--mint-lt);color:var(--green);border:2px dashed var(--mint);width:100%;justify-content:center;padding:9px;margin-top:8px;border-radius:var(--rs);cursor:pointer;font-size:13px;font-weight:600;display:flex;align-items:center;gap:6px;transition:all .2s}
.btn-add:hover{background:var(--mint)}

/* TABLE */
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{background:var(--cream-dk);padding:9px 11px;text-align:left;font-size:11px;font-weight:700;color:var(--text-lt);text-transform:uppercase;letter-spacing:.5px}
.tbl td{padding:8px 10px;border-bottom:1px solid var(--border);vertical-align:middle}
.tbl td input{padding:5px 9px;font-size:13px}
.tbl tr:last-child td{border-bottom:none}
.tbl .subtot td{background:var(--mint-lt);font-weight:700;color:var(--green)}
.tbl .tot td{background:var(--green);color:#fff;font-weight:900;font-size:14px}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin-bottom:0}
.tbl-scroll .tbl{min-width:420px}

/* TABS */
.tabs{display:flex;border-bottom:2px solid var(--border);margin-bottom:18px;gap:0}
.tab{padding:9px 18px;font-size:13px;font-weight:600;cursor:pointer;color:var(--text-lt);border-bottom:3px solid transparent;margin-bottom:-2px;transition:all .2s}
.tab.on{color:var(--green);border-bottom-color:var(--green)}
.tc{display:none}
.tc.on{display:block}

/* PROGRESS BAR */
.pbar-wrap{background:var(--cream-dk);border-radius:100px;height:12px;overflow:hidden;margin-top:8px}
.pbar{height:100%;border-radius:100px;background:linear-gradient(90deg,var(--green),var(--mint));transition:width .5s ease}
.pbar.y{background:linear-gradient(90deg,var(--yellow),#ffd60a)}
.pbar.r{background:linear-gradient(90deg,var(--red),#ff6b6b)}

/* TIP */
.tip{background:var(--cream-dk);border-left:4px solid var(--yellow);padding:11px 14px;border-radius:0 var(--rs) var(--rs) 0;font-size:13px;color:var(--text-lt);margin:12px 0;line-height:1.55}
.tip strong{color:var(--slate)}

/* DIVIDER */
hr.div{border:none;border-top:2px solid var(--border);margin:20px 0}

/* FOOTER */
.ftr{background:var(--slate);color:rgba(255,255,255,.55);text-align:center;padding:22px 24px;font-size:12px;line-height:1.7}
.ftr strong{color:#fff}

/* MODALS */
.modal-bg{display:none;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:9999;align-items:center;justify-content:center;padding:20px}
.modal-bg.open{display:flex}
.modal-box{background:#fff;border-radius:14px;width:100%;max-width:580px;max-height:90vh;overflow:hidden;box-shadow:0 8px 40px rgba(0,0,0,.28);display:flex;flex-direction:column}
.modal-hdr{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;background:var(--green);color:#fff;flex-shrink:0}
.modal-ttl{font-size:15px;font-weight:700}
.modal-close{background:rgba(255,255,255,.2);border:none;color:#fff;width:30px;height:30px;border-radius:50%;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1;transition:background .2s}
.modal-close:hover{background:rgba(255,255,255,.38)}
.modal-body iframe{width:100%;height:560px;border:none;display:block}

/* PRINT */
@media print{
  .hdr,.snav,.btn-print,.btn-add,.btn-del,.ftr{display:none!important}
  body{background:#fff}
  .main{max-width:100%;padding:0}
  .card{break-inside:avoid;box-shadow:none;border:1px solid #ccc;margin-bottom:16px}
  input,select{border:1px solid #ccc!important;background:#fff!important}
  .tab:not(.on),.tc:not(.on){display:none}
}

/* RESPONSIVE — TABLET */
@media(max-width:900px){
  .frow.four{grid-template-columns:1fr 1fr}
}

/* RESPONSIVE — MOBILE */
@media(max-width:700px){
  .hdr-actions{display:none}
  .hamburger{display:flex}
  .modal-body iframe{height:460px}
  .modal-box{max-height:88vh}
}

@media(max-width:650px){
  .frow,.frow.three,.frow.four{grid-template-columns:1fr 1fr}
  .rgrid{grid-template-columns:1fr 1fr}
  .intro h1{font-size:26px}
}

@media(max-width:420px){
  .frow,.frow.three,.frow.four{grid-template-columns:1fr}
  .hdr-inner{flex-wrap:wrap}
  input[type=number],input[type=text],input[type=month],select{font-size:16px!important}
  .intro h1{font-size:22px}
  .intro{padding:20px 20px}
}