/* ============================================================
   GramsToCups - Original design (Materialize-based override)
   ============================================================ */
:root{
    --gtc-primary:#00897b;
    --gtc-primary-dark:#00695c;
    --gtc-primary-light:#4db6ac;
    --gtc-accent:#ff7043;
    --gtc-bg:#f6faf9;
    --gtc-text:#263238;
    --gtc-muted:#607d8b;
    --gtc-card:#ffffff;
    --gtc-border:#e0e0e0;
    --gtc-radius:14px;
    --gtc-shadow:0 6px 24px rgba(0,137,123,.08);
    --gtc-font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
    --gtc-display:'Poppins','Inter',sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    font-family:var(--gtc-font);
    background:var(--gtc-bg);
    color:var(--gtc-text);
    margin:0;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:var(--gtc-display);font-weight:600;color:var(--gtc-text);line-height:1.25}
a{color:var(--gtc-primary-dark);text-decoration:none}
a:hover{color:var(--gtc-primary)}
img{max-width:100%}

.gtc-skip{
    position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.gtc-skip:focus{position:fixed;top:8px;left:8px;width:auto;height:auto;padding:8px 14px;background:#fff;border-radius:6px;z-index:9999}

/* ---------- Navbar ---------- */
.gtc-navbar{
    background:linear-gradient(120deg,var(--gtc-primary-dark),var(--gtc-primary));
    box-shadow:0 2px 12px rgba(0,0,0,.12);
    border-radius:0 0 18px 18px;
}
.gtc-navbar .nav-wrapper{height:64px}
.gtc-navbar .nav-wrapper.container{width:92%;max-width:1200px}
.gtc-logo{display:flex;align-items:center;gap:10px;font-family:var(--gtc-display);font-weight:700;font-size:1.35rem;color:#fff}
.gtc-logo-icon{display:inline-flex;color:#fff;background:rgba(255,255,255,.18);width:38px;height:38px;border-radius:10px;align-items:center;justify-content:center}
.gtc-logo-text{letter-spacing:-.4px}
.gtc-nav li a{color:#fff;font-weight:500;padding:0 14px}
.gtc-nav li.active a,.gtc-nav li a:hover{background:rgba(255,255,255,.16);color:#fff}
.gtc-search-toggle i{font-size:1.3rem;color:#fff}
.gtc-search-bar{padding:0 0 14px;background:rgba(0,0,0,.15)}
.gtc-search-bar .input-field{background:#fff;border-radius:10px;padding:6px 12px;margin:0}
.gtc-search-results{margin:.5rem 0 0;border-radius:8px;overflow:hidden;display:none;position:absolute;left:0;right:0;max-height:300px;overflow-y:auto;z-index:99}
.gtc-search-results li{cursor:pointer}
.gtc-search-results li a{display:block;padding:10px 14px;color:var(--gtc-text)}
.gtc-search-results li:hover a,.gtc-search-results li.active a{background:var(--gtc-bg);color:var(--gtc-primary-dark)}

/* ---------- Main / spacing ---------- */
.gtc-main{min-height:calc(100vh - 220px);padding:30px 0 60px}
.gtc-main .container{width:92%;max-width:1200px}

/* ---------- Hero ---------- */
.gtc-hero{
    text-align:center;
    padding:30px 0 10px;
}
.gtc-hero h1{
    font-size:clamp(1.9rem,4.5vw,3rem);
    margin:0 0 10px;
    background:linear-gradient(120deg,var(--gtc-primary-dark),var(--gtc-primary-light));
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.gtc-hero p{font-size:1.05rem;color:var(--gtc-muted);max-width:680px;margin:0 auto 18px}

/* ---------- Cards / panels ---------- */
.card-panel{background:var(--gtc-card);border-radius:var(--gtc-radius);box-shadow:var(--gtc-shadow);border:1px solid var(--gtc-border);padding:22px 26px;margin:0 0 24px}

.gtc-section-title{
    font-size:1.35rem;margin:0 0 14px;padding-bottom:8px;border-bottom:2px solid var(--gtc-bg);
    position:relative;
}
.gtc-section-title::after{
    content:'';position:absolute;left:0;bottom:-2px;width:48px;height:2px;background:var(--gtc-primary);
}

/* ---------- Calculator ---------- */
.gtc-calc{display:grid;grid-template-columns:1fr;gap:18px}
.gtc-calc-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.gtc-calc-tab{
    flex:1;min-width:120px;padding:10px 12px;border:1px solid var(--gtc-border);background:#fff;
    border-radius:8px;cursor:pointer;font-weight:500;color:var(--gtc-muted);text-align:center;transition:all .2s;
}
.gtc-calc-tab.active{background:var(--gtc-primary);color:#fff;border-color:var(--gtc-primary)}
.gtc-calc-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:end}
.gtc-calc-row .input-field{margin-top:0}
.gtc-calc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.gtc-calc-actions .btn,.gtc-calc-actions .btn-flat{flex:1;min-width:120px;border-radius:8px}
.gtc-calc-result{
    margin-top:18px;padding:18px 22px;border-radius:12px;
    background:linear-gradient(120deg,#e0f2f1,#b2dfdb);
    border-left:4px solid var(--gtc-primary);
}
.gtc-calc-result .label{font-size:.85rem;color:var(--gtc-muted);text-transform:uppercase;letter-spacing:.5px}
.gtc-calc-result .value{font-size:1.6rem;font-weight:700;color:var(--gtc-primary-dark);font-family:var(--gtc-display)}
.gtc-calc-result .extra{font-size:.92rem;color:var(--gtc-muted);margin-top:4px}

/* ---------- Quick chips ---------- */
.gtc-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.gtc-chip{
    background:#fff;border:1px solid var(--gtc-border);color:var(--gtc-primary-dark);
    padding:5px 12px;border-radius:50px;font-size:.85rem;cursor:pointer;transition:all .2s;
}
.gtc-chip:hover{background:var(--gtc-primary);color:#fff;border-color:var(--gtc-primary)}

/* ---------- Grids ---------- */
.gtc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.gtc-card-link{
    background:#fff;border:1px solid var(--gtc-border);border-radius:12px;padding:14px 16px;
    transition:all .2s;display:block;
}
.gtc-card-link:hover{transform:translateY(-2px);box-shadow:var(--gtc-shadow);border-color:var(--gtc-primary-light)}
.gtc-card-link .title{font-weight:600;color:var(--gtc-primary-dark)}
.gtc-card-link .meta{font-size:.85rem;color:var(--gtc-muted);margin-top:4px}

/* ---------- Tables ---------- */
.gtc-table-wrap{overflow:hidden}
.gtc-table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.gtc-table{width:100%;border-collapse:collapse}
table.gtc-table th{background:var(--gtc-primary);color:#fff;font-weight:600;padding:10px 14px;text-align:left;font-size:.9rem}
table.gtc-table td{padding:9px 14px;border-bottom:1px solid var(--gtc-border);font-size:.95rem}
table.gtc-table tr:nth-child(even) td{background:#fafbfb}
table.gtc-table tr:hover td{background:#e0f2f1}

/* ---------- Breadcrumbs ---------- */
.gtc-breadcrumbs{background:transparent;box-shadow:none;height:auto;padding:6px 0;margin-bottom:10px}
.gtc-breadcrumbs .nav-wrapper{padding:0;background:transparent}
.gtc-breadcrumbs .breadcrumb{color:var(--gtc-primary-dark);font-size:.85rem;height:auto;line-height:1.6;padding:0 6px 0 12px}
.gtc-breadcrumbs .breadcrumb::before{content:'›';color:var(--gtc-muted);font-size:1rem}
.gtc-breadcrumbs .breadcrumb.active{color:var(--gtc-muted)}

/* ---------- FAQ ---------- */
.gtc-faq .collapsible-header{font-weight:600;color:var(--gtc-primary-dark);background:#f1f8f7}
.gtc-faq .collapsible-body{padding:14px 22px;color:var(--gtc-text)}

/* ---------- Related links ---------- */
.gtc-related .gtc-link-list{display:flex;flex-wrap:wrap;gap:8px;margin:0;list-style:none;padding:0}
.gtc-related .gtc-link-list li{margin:0}
.gtc-related .btn-small{text-transform:none;font-weight:500;border:1px solid var(--gtc-border);padding:0 12px}

/* ---------- Hero stats ---------- */
.gtc-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-top:24px}
.gtc-stat{text-align:center;background:#fff;padding:18px;border-radius:12px;border:1px solid var(--gtc-border)}
.gtc-stat .num{font-size:1.7rem;font-weight:700;color:var(--gtc-primary-dark);font-family:var(--gtc-display)}
.gtc-stat .lbl{font-size:.85rem;color:var(--gtc-muted);text-transform:uppercase;letter-spacing:.5px}

/* ---------- Tool grid ---------- */
.gtc-tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}
.gtc-tool{
    display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--gtc-border);
    border-radius:12px;padding:16px;text-align:center;transition:all .2s;
}
.gtc-tool:hover{transform:translateY(-3px);border-color:var(--gtc-primary-light);box-shadow:var(--gtc-shadow)}
.gtc-tool .ic{font-size:1.8rem;color:var(--gtc-primary)}
.gtc-tool .nm{font-weight:600;color:var(--gtc-text)}

/* ---------- Page sections ---------- */
.gtc-page-section{margin:30px 0}
.gtc-page-section h2{font-size:1.7rem;margin-bottom:14px}
.gtc-page-section p{color:var(--gtc-text);margin:0 0 12px}
.gtc-page-section ul{padding-left:22px}
.gtc-page-section ul li{margin-bottom:6px}

.gtc-callout{
    background:linear-gradient(120deg,#fff3e0,#ffe0b2);
    border-left:4px solid var(--gtc-accent);
    padding:14px 18px;border-radius:8px;margin:18px 0;color:#bf360c;
}

/* ---------- Footer ---------- */
.gtc-footer{background:linear-gradient(120deg,#004d40,#00695c);color:#cfd8dc;padding:40px 0 20px;margin-top:40px}
.gtc-footer .container{width:92%;max-width:1200px}
.gtc-footer-title{color:#fff;font-family:var(--gtc-display);margin:0 0 8px}
.gtc-footer-text{color:#b2dfdb;font-size:.92rem}
.gtc-footer h6{color:#fff;font-weight:600;text-transform:uppercase;font-size:.78rem;letter-spacing:.5px;margin:0 0 12px}
.gtc-footer ul{list-style:none;padding:0;margin:0}
.gtc-footer ul li{margin-bottom:6px}
.gtc-footer ul li a{color:#b2dfdb;font-size:.9rem}
.gtc-footer ul li a:hover{color:#fff}
.gtc-social{display:flex;gap:10px;margin-bottom:14px}
.gtc-footer-copy{font-size:.82rem;color:#80cbc4;margin:6px 0 0}
.gtc-footer-dev{font-size:.82rem;color:#80cbc4;margin:0}
.gtc-footer-dev strong{color:#fff}

/* ---------- Hero calculator layout ---------- */
.gtc-hero-calc{
    display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:start;margin-top:14px;
}
.gtc-side-info{background:#fff;border:1px solid var(--gtc-border);border-radius:var(--gtc-radius);padding:18px 22px;box-shadow:var(--gtc-shadow)}
.gtc-side-info h4{font-size:1.1rem;margin:0 0 10px;color:var(--gtc-primary-dark)}
.gtc-side-info ul{padding-left:18px;margin:0}
.gtc-side-info ul li{margin-bottom:6px;font-size:.92rem;color:var(--gtc-text)}

/* ---------- 404 ---------- */
.gtc-404{text-align:center;padding:60px 0}
.gtc-404 .code{font-size:6rem;font-weight:800;color:var(--gtc-primary);font-family:var(--gtc-display);line-height:1}
.gtc-404 h2{margin:8px 0 12px}
.gtc-404 .links{margin-top:18px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}

/* ---------- Search results page ---------- */
.gtc-search-page input{font-size:1.1rem;padding:10px 14px;border:1px solid var(--gtc-border);border-radius:8px;width:100%}

/* ---------- Responsive ---------- */
@media(max-width:992px){
    .gtc-hero-calc{grid-template-columns:1fr}
}
@media(max-width:768px){
    .gtc-calc-row{grid-template-columns:1fr}
    .gtc-hero h1{font-size:1.9rem}
    .card-panel{padding:16px 18px}
    .gtc-section-title{font-size:1.15rem}
    .gtc-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
    .gtc-stats{grid-template-columns:1fr}
    .gtc-calc-actions .btn,.gtc-calc-actions .btn-flat{flex:1 1 100%}
    .gtc-calc-result .value{font-size:1.3rem}
}

/* ---------- Forms (admin + general) ---------- */
.gtc-form-card{background:#fff;border:1px solid var(--gtc-border);border-radius:12px;padding:22px 26px;box-shadow:var(--gtc-shadow)}
.gtc-form-card label{font-weight:500;color:var(--gtc-muted);font-size:.85rem}
.gtc-form-card input[type=text],.gtc-form-card input[type=email],.gtc-form-card input[type=password],.gtc-form-card input[type=number],.gtc-form-card textarea,.gtc-form-card select{
    border:1px solid var(--gtc-border);border-radius:8px;padding:8px 12px;width:100%;box-sizing:border-box;
    background:#fff;color:var(--gtc-text);
}
.gtc-form-card textarea{min-height:90px;font-family:inherit}
.gtc-alert{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:.92rem}
.gtc-alert.success{background:#e8f5e9;color:#2e7d32;border:1px solid #c8e6c9}
.gtc-alert.error{background:#ffebee;color:#c62828;border:1px solid #ffcdd2}
.gtc-alert.info{background:#e3f2fd;color:#1565c0;border:1px solid #bbdefb}

/* ---------- Admin layout ---------- */
.gtc-admin-header{background:linear-gradient(120deg,#263238,#37474f);color:#fff;padding:14px 0}
.gtc-admin-header .container{width:94%;max-width:1280px}
.gtc-admin-header a{color:#cfd8dc}
.gtc-admin-header .brand{font-weight:700;font-size:1.1rem;color:#fff}
.gtc-admin-nav{display:flex;gap:6px;flex-wrap:wrap}
.gtc-admin-nav a{padding:6px 12px;border-radius:6px;color:#cfd8dc;font-size:.9rem}
.gtc-admin-nav a.active,.gtc-admin-nav a:hover{background:rgba(255,255,255,.15);color:#fff}
.gtc-admin-body{padding:24px 0}
.gtc-admin-body .container{width:94%;max-width:1280px}
.gtc-admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:24px}
.gtc-admin-stat{background:#fff;padding:18px 20px;border-radius:12px;border:1px solid var(--gtc-border);box-shadow:0 2px 6px rgba(0,0,0,.04)}
.gtc-admin-stat .lbl{font-size:.78rem;text-transform:uppercase;color:var(--gtc-muted);letter-spacing:.5px}
.gtc-admin-stat .num{font-size:1.8rem;font-weight:700;color:var(--gtc-primary-dark);font-family:var(--gtc-display)}
.gtc-admin-table{width:100%;border-collapse:collapse;background:#fff}
.gtc-admin-table th{background:#f5f5f5;padding:10px 12px;text-align:left;font-size:.85rem;color:var(--gtc-muted);border-bottom:2px solid var(--gtc-border)}
.gtc-admin-table td{padding:10px 12px;border-bottom:1px solid var(--gtc-border);font-size:.92rem}
.gtc-admin-table tr:hover td{background:#fafbfb}
.gtc-admin-actions{display:flex;gap:6px;flex-wrap:wrap}
.gtc-admin-actions a,.gtc-admin-actions button{font-size:.78rem;padding:4px 10px}
.badge-status{padding:2px 8px;border-radius:10px;font-size:.72rem;font-weight:600;text-transform:uppercase}
.badge-status.active{background:#c8e6c9;color:#2e7d32}
.badge-status.inactive{background:#ffcdd2;color:#c62828}

/* ---------- Install wizard ---------- */
.gtc-install{max-width:760px;margin:30px auto;padding:0 16px}
.gtc-install-card{background:#fff;border:1px solid var(--gtc-border);border-radius:14px;box-shadow:var(--gtc-shadow);padding:30px 34px;margin-bottom:20px}
.gtc-install-steps{display:flex;justify-content:space-between;align-items:center;margin:0 0 24px;flex-wrap:wrap;gap:8px}
.gtc-install-step{display:flex;align-items:center;gap:8px;color:var(--gtc-muted);font-size:.85rem}
.gtc-install-step.active{color:var(--gtc-primary-dark);font-weight:600}
.gtc-install-step.done{color:var(--gtc-primary)}
.gtc-install-step .dot{width:26px;height:26px;border-radius:50%;background:#eee;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:600}
.gtc-install-step.active .dot{background:var(--gtc-primary);color:#fff}
.gtc-install-step.done .dot{background:var(--gtc-primary-light);color:#fff}
.gtc-install h1{font-size:1.6rem;margin:0 0 8px;color:var(--gtc-primary-dark)}
.gtc-install h2{font-size:1.15rem;margin:18px 0 8px}
.gtc-install-card p{color:var(--gtc-muted);font-size:.95rem}
.gtc-req-list{list-style:none;padding:0;margin:14px 0}
.gtc-req-list li{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border-bottom:1px solid var(--gtc-border);font-size:.92rem}
.gtc-req-list li .ok{color:#2e7d32;font-weight:600}
.gtc-req-list li .fail{color:#c62828;font-weight:600}
.gtc-install-actions{display:flex;justify-content:space-between;gap:8px;margin-top:18px;flex-wrap:wrap}
.gtc-install-actions .btn,.gtc-install-actions .btn-flat{border-radius:8px}

/* ---------- Misc ---------- */
.gtc-toc{background:#f1f8f7;border-radius:8px;padding:12px 18px;margin:14px 0}
.gtc-toc h4{margin:0 0 6px;font-size:.95rem;color:var(--gtc-primary-dark)}
.gtc-toc ul{margin:0;padding-left:18px}
.gtc-toc ul li{margin-bottom:3px;font-size:.9rem}

.gtc-lead{font-size:1.05rem;color:var(--gtc-text);margin:0 0 14px}
.gtc-muted{color:var(--gtc-muted)}
.center{text-align:center}
.right-align{text-align:right}
.gtc-mt-2{margin-top:16px}
.gtc-mb-2{margin-bottom:16px}
.gtc-mt-3{margin-top:24px}
.gtc-mb-3{margin-bottom:24px}