/* ============================================================
   A+ Tech — styles.css (Clean Light Mode)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --ink: #0b0e12;
    --paper: #ffffff;
    --soft: #f4f6f8;
    --line: #e3e7ec;
    --text: #1a1f26;
    --muted: #5c6672;
    --accent: #1a56db;
    --accent-dark: #1443b0;
    --accent-soft: #e8effd;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 1px 2px rgba(16,24,40,.04), 0 8px 24px rgba(16,24,40,.06);
    --font-head: 'Bricolage Grotesque', system-ui, sans-serif;
    --font-body: 'Figtree', system-ui, -apple-system, sans-serif;
    --max: 1120px;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.6;
    color: var(--text);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
    font-family: var(--font-head);
    font-weight: 700;
    line-height: 1.15;
    color: var(--ink);
    letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.15rem); margin-bottom: 12px; }
h3 { font-size: 1.2rem; margin-bottom: 6px; }
p  { color: var(--text); }

.muted { color: var(--muted); }
small { font-size: 0.85em; color: var(--muted); }

/* Layout */
.w { max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.sec { padding: 64px 0; }
.sec.tint { background: var(--soft); }

.page-h {
    padding: 120px 0 40px;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
}
.page-h .lead { max-width: 640px; margin-top: 14px; }

.lead {
    font-size: 1.12rem;
    color: var(--muted);
    line-height: 1.55;
}

.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.92);
    backdrop-filter: saturate(180%) blur(10px);
    -webkit-backdrop-filter: saturate(180%) blur(10px);
    border-bottom: 1px solid var(--line);
}
.bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 14px;
    padding-bottom: 14px;
    flex-wrap: wrap;
}
.brand {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--ink);
    letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; color: var(--accent); }

header nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
header nav a {
    color: var(--muted);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: background .15s ease, color .15s ease;
    display: flex;
    align-items: center;
}
header nav a:hover {
    color: var(--ink);
    background: var(--soft);
    text-decoration: none;
}
header nav a[aria-current="page"] {
    color: var(--ink);
    background: var(--accent-soft);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1;
    padding: 13px 22px;
    border-radius: var(--radius-sm);
    background: var(--accent);
    color: #fff;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background .15s ease, transform .15s ease, box-shadow .15s ease, color .15s ease, border-color .15s ease;
    text-decoration: none;
}
.btn:hover {
    background: var(--accent-dark);
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(26,86,219,.2);
}
.btn.ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--line);
}
.btn.ghost:hover {
    border-color: var(--ink);
    background: var(--soft);
    color: var(--ink);
    box-shadow: none;
}
.btn.alt {
    background: #fff;
    color: var(--accent);
}
.btn.alt:hover {
    background: #f4f7ff;
    color: var(--accent-dark);
}
.btn.sm { padding: 9px 16px; font-size: 0.88rem; }

/* Cards & grids */
.g {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}
.card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
    transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: #cfd6df; }
.card h3 { margin-bottom: 6px; }
.card p { color: var(--muted); font-size: 0.97rem; }
.card a { font-weight: 600; font-size: 0.92rem; }
.card ul { list-style: none; margin: 12px 0 0; padding: 0; }
.card ul li {
    position: relative;
    padding: 6px 0 6px 22px;
    color: var(--muted);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--line);
}
.card ul li:last-child { border-bottom: none; }
.card ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 14px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    opacity: .85;
}
.card.step { position: relative; }
.card.step b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent);
    font-family: var(--font-head);
    font-size: 1rem;
    margin-bottom: 12px;
}

/* Hero (Light Mode) */
.hero {
    padding: 84px 0 68px;
    background:
        radial-gradient(1200px 400px at 80% -10%, var(--accent-soft), transparent 60%),
        var(--paper);
    border-bottom: 1px solid var(--line);
}
.hero .w {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 48px;
    align-items: center;
}
.hero h1 { margin-bottom: 18px; }
.hero .lead { margin-bottom: 26px; max-width: 540px; }

.plan {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px 26px 22px;
    box-shadow: var(--shadow);
}
.plan h3 { font-size: 1.05rem; margin-bottom: 14px; color: var(--ink); }
.plan ul { list-style: none; padding: 0; margin: 0 0 16px; }
.plan ul li {
    position: relative;
    padding: 9px 0 9px 26px;
    font-size: 0.97rem;
    color: var(--text);
    border-bottom: 1px solid var(--line);
    opacity: 0;
    transform: translateY(6px);
    animation: planIn .55s ease forwards;
    animation-delay: calc(var(--i, 0) * 90ms + 120ms);
}
.plan ul li:last-child { border-bottom: none; }
.plan ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 16px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft);
}
.plan .from {
    font-family: var(--font-head);
    font-size: 1.05rem;
    color: var(--ink);
    font-weight: 700;
    padding-top: 6px;
    border-top: 1px solid var(--line);
}
@keyframes planIn {
    to { opacity: 1; transform: translateY(0); }
}

/* Shop Product Cards & Disabled Buttons */
.card.product {
    text-align: center;
    display: flex;
    flex-direction: column;
}

.card.product .product-img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background: #f4f6f8;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
}

.card.product h3 {
    margin-bottom: 4px;
}

.card.product p {
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.card.product .price {
    font-family: var(--font-head);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 16px;
    margin-top: auto; 
}

.card.product .btn {
    width: 100%;
}

.card.product .btn.disabled {
    background-color: #e3e7ec;
    color: #5c6672;
    border-color: #e3e7ec;
    cursor: not-allowed;
    pointer-events: none;
    box-shadow: none;
    transform: none;
}

/* Other Sections (Tiers, Chips, FAQ, CTA) */
.tier { display: flex; flex-direction: column; position: relative; }
.tier .amt {
    font-family: var(--font-head);
    font-size: 2rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.1;
    margin: 6px 0 10px;
}
.tier .amt small {
    font-size: 0.95rem;
    font-family: var(--font-body);
    color: var(--muted);
    font-weight: 500;
}
.tier p { color: var(--muted); margin-bottom: 6px; }
.tier ul { margin-bottom: 18px; flex: 1; }
.tier .btn { width: 100%; margin-top: auto; }
.tier.pop {
    border-color: var(--accent);
    box-shadow: 0 12px 32px rgba(26,86,219,.14);
}
.tier.pop .tag {
    position: absolute;
    top: -12px;
    left: 22px;
    background: var(--accent);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: 999px;
}

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0; }
.chips span {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-soft);
    padding: 4px 10px;
    border-radius: 999px;
}

details {
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    margin-bottom: 10px;
    background: #fff;
    transition: border-color .15s ease;
}
details[open] { border-color: #cfd6df; }
details summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--ink);
    list-style: none;
    position: relative;
    padding-right: 28px;
}
details summary::-webkit-details-marker { display: none; }
details summary::after {
    content: "+";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-head);
    font-size: 1.3rem;
    color: var(--accent);
    line-height: 1;
    transition: transform .2s ease;
}
details[open] summary::after { content: "–"; }
details p { margin-top: 10px; color: var(--muted); font-size: 0.96rem; }

.two { display: grid; grid-template-columns: 1fr 1.15fr; gap: 36px; align-items: start; }
form label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink);
    margin: 16px 0 6px;
}
form label:first-of-type { margin-top: 0; }
form input,
form textarea,
form select {
    width: 100%;
    font-family: inherit;
    font-size: 0.97rem;
    color: var(--text);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    transition: border-color .15s ease, box-shadow .15s ease;
}
form input::placeholder,
form textarea::placeholder { color: #98a1ad; }
form input:focus,
form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
form textarea { min-height: 150px; resize: vertical; }
form .btn { margin-top: 20px; width: 100%; }
#status {
    margin-top: 12px;
    font-size: 0.92rem;
    color: var(--muted);
    min-height: 1.2em;
}
#status:not(:empty) {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    background: var(--accent-soft);
    color: var(--accent-dark);
}

.cta {
    background: var(--ink);
    color: #fff;
    border-radius: var(--radius);
    padding: 44px 32px;
    text-align: center;
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255,255,255,.78); max-width: 520px; margin: 8px auto 22px; }
.cta .row { justify-content: center; }

footer {
    border-top: 1px solid var(--line);
    padding: 48px 0 0;
    margin-top: 40px;
    background: var(--paper);
}
.foot {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 32px;
    padding-bottom: 28px;
}
.foot strong {
    font-family: var(--font-head);
    color: var(--ink);
    font-size: 1.05rem;
    display: block;
    margin-bottom: 6px;
}
.foot p { font-size: 0.92rem; }
.foot > div { display: flex; flex-direction: column; gap: 8px; }
.foot a { color: var(--muted); font-size: 0.93rem; }
.foot a:hover { color: var(--accent); text-decoration: none; }
.copy {
    border-top: 1px solid var(--line);
    padding: 18px 22px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--muted);
}

.wa {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 60;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    background: #25d366;
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 999px;
    box-shadow: 0 10px 26px rgba(37,211,102,.35);
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.wa:hover {
    text-decoration: none;
    background: #1fb457;
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(37,211,102,.42);
}

.coming {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 40px 32px;
    box-shadow: var(--shadow);
    position: relative;
}
.coming .tag {
    display: inline-block;
    background: var(--accent-soft);
    color: var(--accent-dark);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: 999px;
    margin-bottom: 14px;
}

/* Responsive */
@media (max-width: 900px) {
    .hero .w { grid-template-columns: 1fr; gap: 32px; }
    .hero { padding: 56px 0 48px; }
    .two { grid-template-columns: 1fr; gap: 28px; }
    .foot { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 640px) {
    body { font-size: 16px; }
    .sec { padding: 48px 0; }
    .page-h { padding: 96px 0 28px; }
    .bar { padding-top: 12px; padding-bottom: 12px; }
    header nav {
        width: 100%;
        gap: 4px;
        padding-top: 10px;
        border-top: 1px solid var(--line);
        margin-top: 10px;
    }
    header nav a { padding: 8px 10px; font-size: 0.92rem; }
    .btn { padding: 12px 18px; }
    .g { grid-template-columns: 1fr; }
    .cta { padding: 32px 20px; }
    .foot { grid-template-columns: 1fr; }
    .wa { right: 14px; bottom: 14px; padding: 10px 14px; font-size: 0.85rem; }
    .plan { padding: 20px 18px 16px; }
}