/* ScienceWise PH Fixed Full Site CSS */
:root {
    --green: #0f5132;
    --green-dark: #09351f;
    --green-soft: #eaf7ef;
    --green-soft-2: #f4fbf6;
    --text: #1f2937;
    --muted: #667085;
    --border: #dce9e1;
    --white: #ffffff;
    --shadow: 0 14px 40px rgba(15, 81, 50, 0.10);
    --radius: 22px;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background: #f7fbf8;
    line-height: 1.65;
}
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1120px, 92%); margin: 0 auto; }
.site-header {
    background: rgba(255,255,255,0.97);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}
.nav-wrap {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 900;
    font-size: 1.2rem;
    color: var(--green-dark);
}
.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--green), #2aa36b);
    font-weight: 900;
}
.menu-toggle {
    display: none;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--green-dark);
    border-radius: 12px;
    padding: 9px 12px;
    font-size: 1.2rem;
    cursor: pointer;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.main-nav > a,
.dropdown-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 12px;
    border-radius: 999px;
    color: #244c37;
    font-weight: 700;
    font-size: 0.94rem;
    background: transparent;
    border: 0;
    cursor: pointer;
    font-family: inherit;
}
.main-nav > a:hover,
.dropdown:hover .dropdown-button {
    background: var(--green-soft);
    text-decoration: none;
}
.dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    right: 0;
    top: 44px;
    width: min(680px, 92vw);
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 22px;
    box-shadow: var(--shadow);
    padding: 14px;
    display: none;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu { display: grid; }
.dropdown-menu a {
    display: block;
    padding: 12px;
    border-radius: 16px;
    color: var(--text);
    border: 1px solid transparent;
}
.dropdown-menu a:hover {
    background: var(--green-soft-2);
    border-color: var(--border);
    text-decoration: none;
}
.dropdown-menu strong {
    display: block;
    color: var(--green-dark);
    line-height: 1.2;
}
.dropdown-menu small {
    display: block;
    color: var(--muted);
    margin-top: 4px;
    line-height: 1.35;
}
.hero {
    background:
        radial-gradient(circle at top left, rgba(42, 163, 107, .18), transparent 34%),
        linear-gradient(135deg, #f1fbf5, #ffffff);
    padding: 64px 0 36px;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 28px;
    align-items: center;
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--green);
    background: var(--green-soft);
    border: 1px solid #d4ecdd;
    padding: 7px 13px;
    border-radius: 999px;
    font-size: .9rem;
    font-weight: 800;
}
h1 {
    margin: 18px 0 14px;
    font-size: clamp(2.1rem, 5vw, 3.7rem);
    line-height: 1.05;
    color: var(--green-dark);
    letter-spacing: -0.04em;
}
h2 {
    color: var(--green-dark);
    font-size: clamp(1.45rem, 3vw, 2.2rem);
    line-height: 1.15;
    margin: 0 0 12px;
}
h3 { color: var(--green-dark); margin-bottom: 8px; }
.lead {
    max-width: 760px;
    font-size: 1.12rem;
    color: #425466;
}
.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 24px;
}
.btn, button.primary {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 13px 18px;
    border-radius: 14px;
    background: var(--green);
    color: #fff;
    font-weight: 900;
    border: 1px solid var(--green);
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
}
.btn:hover, button.primary:hover {
    background: var(--green-dark);
    text-decoration: none;
}
.btn-light {
    background: #fff;
    color: var(--green);
    border-color: var(--border);
}
.hero-card, .panel, .tool-card, .calculator-box {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: 0 8px 25px rgba(15, 81, 50, 0.06);
}
.hero-card { box-shadow: var(--shadow); }
.hero-card ul { padding-left: 20px; margin-bottom: 0; }
.section { padding: 50px 0; }
.section-head {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: end;
    margin-bottom: 22px;
}
.section-head p { max-width: 720px; color: var(--muted); margin: 0; }
.tool-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.tool-card {
    display: flex;
    flex-direction: column;
    min-height: 235px;
}
.tool-card:hover {
    transform: translateY(-2px);
    transition: .2s ease;
    box-shadow: var(--shadow);
}
.tool-tag {
    align-self: flex-start;
    background: var(--green-soft);
    color: var(--green);
    border-radius: 999px;
    padding: 5px 10px;
    font-size: .78rem;
    font-weight: 800;
    margin-bottom: 10px;
}
.tool-card p { color: var(--muted); flex: 1; }
.tool-card .open-link { font-weight: 900; margin-top: 12px; }
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}
.calc-grid {
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    gap: 22px;
    align-items: start;
}
label {
    display: block;
    margin: 14px 0 6px;
    font-weight: 800;
    color: #203b2d;
}
input, select, textarea {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid #cad8cf;
    border-radius: 12px;
    font-size: 1rem;
    background: #fff;
}
textarea { min-height: 130px; }
hr { border: 0; border-top: 1px solid var(--border); margin: 18px 0; }
.result {
    margin-top: 18px;
    padding: 18px;
    background: #effaf3;
    border: 1px solid #cfe9d9;
    border-radius: 16px;
}
.result strong { font-size: 1.35rem; color: var(--green); }
.formula {
    font-family: Consolas, monospace;
    background: #f3f4f6;
    border-radius: 12px;
    padding: 12px;
    overflow: auto;
}
.notice { font-size: .92rem; color: var(--muted); }
.ad-note, .ad-box {
    border: 1px dashed #aac7b7;
    background: #fff;
    border-radius: 18px;
    padding: 18px;
    color: var(--muted);
    text-align: center;
    margin: 22px 0;
}
.related {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.related a {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px;
    font-weight: 800;
}
.site-footer {
    background: var(--green-dark);
    color: #fff;
    padding: 34px 0;
    margin-top: 40px;
}
.site-footer a { color: #fff; text-decoration: underline; }

@media (max-width: 920px) {
    .menu-toggle { display: inline-flex; }
    .nav-wrap { flex-wrap: wrap; }
    .main-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        padding-bottom: 14px;
    }
    body.nav-open .main-nav { display: flex; }
    .main-nav > a, .dropdown-button {
        border-radius: 14px;
        justify-content: space-between;
        width: 100%;
    }
    .dropdown-menu {
        position: static;
        width: 100%;
        box-shadow: none;
        margin-top: 6px;
        grid-template-columns: 1fr;
    }
    .hero-grid, .split, .calc-grid { grid-template-columns: 1fr; }
    .tool-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .hero { padding: 46px 0 28px; }
    .tool-grid, .related { grid-template-columns: 1fr; }
    .section-head { display: block; }
}