/* auth.css — Light/Amber (style bizflow): trang chủ landing + các trang đăng nhập/đăng ký/quên mật khẩu */
:root{--bg:#ffffff;--bg2:#fafbfc;--section:#f7f8fa;--text:#1f2937;--mut:#6b7280;--soft:#9ca3af;
      --amber:#fcd34d;--amber2:#f59e0b;--dark:#111827;--border:#e7e9ee;--green:#16a34a;--red:#dc2626;}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Segoe UI',system-ui,Arial,sans-serif;font-size:15px;line-height:1.55}
a{color:var(--amber2);text-decoration:none}
.container{max-width:1080px;margin:0 auto;padding:0 18px}

/* nav */
.nav{display:flex;align-items:center;gap:14px;padding:14px 22px;border-bottom:1px solid var(--border);background:#fff;position:sticky;top:0;z-index:20}
.logo{font-weight:800;font-size:18px;color:var(--dark)}.logo b{color:var(--amber2)}
.nav .links{display:flex;gap:18px;flex:1;font-size:14px}
.nav .links a{color:#4b5563}.nav .links a:hover{color:var(--dark)}
.btn{padding:10px 18px;border-radius:10px;font-size:14px;font-weight:700;cursor:pointer;border:0;text-decoration:none;display:inline-block;text-align:center;transition:.15s}
.btn:hover{transform:translateY(-1px)}
.btn.amber,.btn.primary{background:var(--amber);color:#1a1505;box-shadow:0 6px 18px rgba(245,158,11,.3)}
.btn.dark{background:var(--dark);color:#fff}
.btn.ghost{background:#fff;color:var(--dark);border:1px solid var(--border)}
.btn.big{padding:14px 24px;font-size:16px}.btn.full{width:100%;padding:12px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* hero */
.hero{padding:60px 18px 50px;background:linear-gradient(180deg,#fffdf5,#fff);text-align:center}
.eyebrow{display:inline-block;padding:6px 14px;border-radius:20px;background:#fef3c7;color:#92660a;font-size:13px;font-weight:700;margin-bottom:20px}
.h1{font-size:48px;line-height:1.1;margin:0 0 10px;font-weight:800;color:var(--dark);letter-spacing:-.5px}
.h1 .hl{color:var(--amber2)}
.h-sub{font-size:20px;color:#374151;font-weight:600;margin:0 0 6px}
.h-mini{font-size:14px;color:var(--mut);margin:0 0 18px}
.h-desc{font-size:16px;color:#4b5563;max-width:560px;margin:0 auto 26px}
.hero .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* section chung */
.section{padding:54px 18px}.section.alt{background:var(--section)}
.section h2{font-size:30px;font-weight:800;color:var(--dark);text-align:center;margin:0 0 8px;letter-spacing:-.4px}
.section .lead{text-align:center;color:var(--mut);max-width:600px;margin:0 auto 34px;font-size:16px}
.grid{display:grid;gap:16px}.g2{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.g3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.g4{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px;box-shadow:0 4px 14px rgba(20,20,40,.04)}
.card .ic{font-size:28px;display:block;margin-bottom:10px}
.card h3{margin:0 0 6px;font-size:16px;color:var(--dark)}.card p{margin:0;color:var(--mut);font-size:14px}

/* bảng chi phí */
.cost{max-width:460px;margin:26px auto 0;background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden}
.cost .r{display:flex;justify-content:space-between;padding:13px 18px;border-bottom:1px solid var(--border);font-size:15px}
.cost .r:last-child{border:0;background:#fff7e6;font-weight:800;color:#b45309}
.quote{text-align:center;font-size:19px;font-weight:700;color:var(--dark);max-width:620px;margin:30px auto 0}

/* 4 bước */
.step{position:relative}.step .no{font-size:13px;font-weight:800;color:var(--amber2)}
/* dashboard */
.dash{max-width:620px;margin:0 auto;background:#0f1320;border-radius:16px;padding:22px;color:#e5e7eb}
.dash .row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid #1f2533;font-size:13px;font-family:Consolas,monospace}
.dash .ok{color:#34d399}.dash .run{color:#60a5fa}.dash .q{color:#6b7280}
.dash .counter{margin-top:14px;font-size:22px;font-weight:800;color:var(--amber)}

/* stats */
.stat{text-align:center}.stat b{display:block;font-size:38px;font-weight:800;color:var(--amber2)}.stat span{color:var(--mut);font-size:14px}
.chk{display:flex;align-items:center;gap:8px;color:#374151;font-size:15px;padding:6px 0}.chk .c{color:var(--green);font-weight:800}

/* CTA cuối */
.cta-final{background:linear-gradient(120deg,#111827,#1f2937);color:#fff;text-align:center;padding:60px 18px;border-radius:0}
.cta-final h2{color:#fff;font-size:30px;margin:0 0 10px}.cta-final p{color:#cbd5e1;margin:0 0 22px}
.cta-final .badges{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin-top:18px;color:#9ca3af;font-size:13px}

/* footer */
.foot{padding:28px 18px;text-align:center;color:var(--mut);font-size:13px;border-top:1px solid var(--border)}
.foot a{color:var(--mut);margin:0 10px}

/* ── trang auth (đăng nhập/đăng ký/quên mk) ── */
.center-wrap{min-height:calc(100vh - 130px);display:flex;align-items:center;justify-content:center;padding:30px 18px;background:linear-gradient(180deg,#fffdf5,#fff)}
.auth-card{flex:0 0 400px;max-width:94%;background:#fff;border:1px solid var(--border);border-radius:16px;padding:28px;box-shadow:0 18px 50px rgba(20,20,40,.1)}
.auth-card h2{margin:0 0 4px;font-size:22px;color:var(--dark)}.auth-card .desc{color:var(--mut);font-size:14px;margin:0 0 18px}
.tabs{display:flex;gap:6px;margin-bottom:18px;background:var(--section);border-radius:10px;padding:4px}
.tab{flex:1;text-align:center;padding:9px;border-radius:8px;font-size:14px;font-weight:700;color:var(--mut);text-decoration:none}
.tab.active{background:var(--amber);color:#1a1505}
label{display:block;font-size:13px;font-weight:700;margin:13px 0 5px;color:#374151}
input{width:100%;padding:12px 14px;border:1px solid #d8dce4;border-radius:10px;background:#fff;color:var(--text);font-size:14px;font-family:inherit;transition:.15s}
input:focus{outline:none;border-color:var(--amber2);box-shadow:0 0 0 3px rgba(245,158,11,.15)}
.forgot{display:block;text-align:right;font-size:13px;margin:10px 0 14px;font-weight:600}
.otp-note{margin-top:14px;font-size:12.5px;text-align:center;padding:9px;border-radius:9px;background:#fffbeb;color:#92660a}
.msg{font-size:13.5px;padding:11px;border-radius:9px;margin-bottom:14px}
.msg.err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.msg.ok{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}
.links-row{margin-top:18px;text-align:center;font-size:14px;color:var(--mut)}
.otp-box input{text-align:center;letter-spacing:10px;font-size:22px;font-weight:800}

/* ── scroll reveal (chữ/thẻ chạy vào khi lướt) ── */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s cubic-bezier(.16,.84,.44,1),transform .7s cubic-bezier(.16,.84,.44,1);will-change:opacity,transform}
.reveal.in{opacity:1;transform:none}
.reveal.fade{transform:none}.reveal.fade.in{transform:none}
.reveal.left{transform:translateX(-34px)}.reveal.left.in{transform:none}
.reveal.zoom{transform:scale(.94)}.reveal.zoom.in{transform:none}

/* ── trang con (sản phẩm / giải pháp / bảng giá / blog) ── */
.nav .links a.on{color:var(--dark);font-weight:800}
.prodhero{padding:50px 18px 26px}.prodhero .eyebrow{margin-bottom:14px}
.cmp{max-width:800px;margin:26px auto 0;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:#fff}
.cmp .r{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;border-bottom:1px solid var(--border)}
.cmp .r:last-child{border:0}
.cmp .r>div{padding:12px 16px;font-size:14px}
.cmp .r.h>div{background:var(--section);font-weight:800;color:var(--dark);text-align:center}
.cmp .r>div:first-child{font-weight:600;color:#374151}
.cmp .r>div:not(:first-child){text-align:center}
.cmp .no{color:var(--red)}.cmp .yes{color:var(--green);font-weight:700}
.price-grid .card{text-align:center}
.price-grid .amt{font-size:34px;font-weight:800;color:var(--amber2);line-height:1}
.price-grid .unit{color:var(--mut);font-size:13px;margin:6px 0 14px}
.faq{max-width:720px;margin:24px auto 0}
.faq .q{background:#fff;border:1px solid var(--border);border-radius:12px;padding:15px 18px;margin-bottom:10px;text-align:left}
.faq .q b{display:block;color:var(--dark);margin-bottom:5px;font-size:15px}
.faq .q span{color:var(--mut);font-size:14px}
.blog-card{display:block;text-decoration:none}.blog-card .tag{font-size:12px;font-weight:700;color:var(--amber2)}
.blog-card h3{color:var(--dark);margin:6px 0}.blog-card p{color:var(--mut);font-size:14px;margin:0}
/* trang nội dung dài (bảo mật / điều khoản / về chúng tôi) + liên hệ */
.doc{max-width:780px;margin:0 auto;text-align:left}
.doc .updated{color:var(--mut);font-size:13px;margin:0 0 22px}
.doc h3{font-size:17px;color:var(--dark);margin:24px 0 8px}
.doc p,.doc li{color:#374151;font-size:15px;line-height:1.75}
.doc ul{padding-left:20px;margin:6px 0}
.doc a{color:var(--amber2);font-weight:600}
.contact-card{max-width:460px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:16px;padding:28px;text-align:center;box-shadow:0 8px 24px rgba(20,20,40,.07)}
.contact-card .lbl{color:var(--mut);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.contact-card .zalo{font-size:32px;font-weight:800;color:var(--dark);letter-spacing:1px;margin:6px 0 16px}