/* ============================================================
   Dr. Meera Salama — personal website
   Design system: warm paper, evergreen, copper accents
   Fonts: Fraunces (display) · Inter (body) · JetBrains Mono (labels)
   ============================================================ */

:root {
    --ink: #1C2B2A;
    --ink-soft: #4E6160;
    --ink-faint: #7C8B8A;

    --paper: #FDFBF6;
    --paper-2: #F6F2E8;
    --card: #FFFFFF;

    --ever: #11493E;
    --ever-2: #0B3630;
    --jade: #2E8B6E;
    --jade-soft: #DDF0E8;

    --copper: #B9770E;
    --copper-2: #C98A2B;
    --copper-soft: #F8ECD5;

    --line: #E6E0D1;
    --line-strong: #D5CDBA;

    --r: 20px;
    --r-sm: 13px;
    --shadow: 0 22px 44px -30px rgba(17, 54, 48, .45);
    --shadow-soft: 0 14px 30px -24px rgba(17, 54, 48, .4);

    --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
    --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
}

* {
    box-sizing: border-box
}

html {
    scroll-behavior: smooth
}

body {
    margin: 0;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 16.5px;
    line-height: 1.62;
    background:
        radial-gradient(1100px 520px at 88% -140px, #FBEAD0 0, rgba(251, 234, 208, 0) 62%),
        radial-gradient(900px 520px at -140px 22%, #E2F2EC 0, rgba(226, 242, 236, 0) 58%),
        radial-gradient(760px 420px at 108% 76%, #EAF1E3 0, rgba(234, 241, 227, 0) 60%),
        var(--paper);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    display: block
}

a {
    color: var(--ever);
    text-decoration: none
}

a:hover {
    color: var(--jade)
}

::selection {
    background: var(--jade-soft);
    color: var(--ever-2)
}

:focus-visible {
    outline: 3px solid var(--jade);
    outline-offset: 2px;
    border-radius: 6px
}

.wrap {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 28px
}

/* ---------- typography helpers ---------- */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--jade);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.eyebrow::before {
    content: "";
    width: 26px;
    height: 2px;
    background: var(--copper-2);
    border-radius: 2px
}

.eyebrow.plain::before {
    display: none
}

h1,
h2,
h3 {
    font-family: var(--font-display);
    line-height: 1.12;
    color: var(--ever-2);
    margin: 0
}

.lede {
    font-size: 17px;
    color: var(--ink-soft);
    max-width: 62ch
}

.mono {
    font-family: var(--font-mono)
}

/* ---------- top navigation ---------- */
.nav {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(253, 251, 246, .86);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    height: 66px
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 19.5px;
    color: var(--ever-2);
    letter-spacing: .01em;
    white-space: nowrap;
}

.brand:hover {
    color: var(--ever)
}

.brand-mark {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    clip-path: polygon(25% 2%, 75% 2%, 100% 50%, 75% 98%, 25% 98%, 0 50%);
    background: linear-gradient(135deg, var(--ever) 0%, var(--jade) 100%);
    color: #fff;
    display: grid;
    place-items: center;
    font-family: var(--font-mono);
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .02em;
    padding-top: 1px;
}

.brand .dot {
    color: var(--copper-2)
}

.navlinks {
    display: flex;
    align-items: center;
    gap: 4px
}

.navlinks a {
    font-family: var(--font-mono);
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--ink-soft);
    padding: 9px 13px;
    border-radius: 999px;
    transition: background .16s ease, color .16s ease;
}

.navlinks a:hover {
    background: #EFEBDE;
    color: var(--ever-2)
}

.navlinks a.active {
    color: var(--ever-2);
    background: var(--jade-soft)
}

.nav-cta {
    margin-left: 8px;
    background: var(--ever) !important;
    color: #fff !important;
    border-radius: 999px;
    padding: 10px 17px !important;
    box-shadow: 0 10px 20px -12px rgba(17, 73, 62, .7);
}

.nav-cta:hover {
    background: var(--ever-2) !important;
    color: #fff !important
}

.nav-toggle {
    display: none;
    border: 1.5px solid var(--line-strong);
    background: #fff;
    border-radius: 11px;
    width: 42px;
    height: 40px;
    font-size: 18px;
    color: var(--ever-2);
    cursor: pointer;
}

/* ---------- hero ---------- */
.hero {
    padding: 64px 0 34px
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    align-items: center
}

.hero-name {
    font-size: clamp(40px, 5.4vw, 64px);
    font-weight: 700;
    letter-spacing: -.015em;
    margin: 18px 0 16px;
}

.hero-name .tail {
    color: var(--jade)
}

.hero-sub {
    font-size: 17px;
    color: var(--ink-soft);
    max-width: 56ch
}

.hero-ctas {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 28px
}

.hero-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 24px
}

.chip {
    font-family: var(--font-mono);
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: .02em;
    background: #fff;
    border: 1.5px solid var(--line-strong);
    color: var(--ink-soft);
    padding: 6px 11px;
    border-radius: 999px;
}

/* buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 15px;
    padding: 13px 20px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    transition: transform .16s ease, box-shadow .16s ease, background .16s ease, filter .16s ease;
}

.btn:hover {
    transform: translateY(-2px)
}

.btn:active {
    transform: translateY(0)
}

.btn.primary {
    background: linear-gradient(135deg, var(--ever) 0%, #0E5C4C 100%);
    color: #fff;
    box-shadow: 0 16px 30px -16px rgba(17, 73, 62, .75);
}

.btn.primary:hover {
    filter: brightness(1.08)
}

.btn.copper {
    background: linear-gradient(135deg, var(--copper) 0%, var(--copper-2) 100%);
    color: #fff;
    box-shadow: 0 16px 30px -16px rgba(185, 119, 14, .75);
}

.btn.copper:hover {
    filter: brightness(1.07)
}

.btn.ghost {
    background: #fff;
    color: var(--ever-2);
    box-shadow: inset 0 0 0 1.6px var(--line-strong);
}

.btn.ghost:hover {
    box-shadow: inset 0 0 0 1.6px var(--jade);
    color: var(--ever)
}

/* portrait frame */
.portrait-wrap {
    position: relative;
    justify-self: center;
    max-width: 390px
}

.portrait-frame {
    position: relative;
    border-radius: 26px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow), 0 0 0 8px rgba(255, 255, 255, .65);
    transform: rotate(1.6deg);
    background: linear-gradient(160deg, var(--jade-soft), #F4EFE1);
    aspect-ratio: 4/4.6;
}

.portrait-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 22%
}

.portrait-badge {
    position: absolute;
    left: 50%;
    bottom: -24px;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    gap: 9px;
    white-space: nowrap;
    background: var(--ever-2);
    color: #fff;
    border-radius: 999px;
    padding: 11px 19px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .06em;
    box-shadow: 0 18px 34px -18px rgba(11, 54, 48, .9);
}

.portrait-badge em {
    font-style: normal;
    color: #8FD8BE
}

.float-note {
    position: absolute;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 10px 14px;
    font-size: 12.5px;
    color: var(--ink-soft);
    line-height: 1.4;
    box-shadow: var(--shadow-soft);
    max-width: 200px;
}

.float-note b {
    color: var(--ever-2);
    display: block;
    font-size: 12.5px
}

.float-note.n1 {
    top: 26px;
    right: -58px;
    transform: rotate(-2deg)
}

.float-note.n2 {
    bottom: 34px;
    left: -64px;
    transform: rotate(1.4deg)
}

.deco-hex {
    position: absolute;
    opacity: .5;
    pointer-events: none
}

/* ---------- sections ---------- */
section.block {
    padding: 56px 0
}

.sec-head {
    max-width: 760px;
    margin-bottom: 30px
}

.sec-head h2 {
    font-size: clamp(27px, 3.3vw, 38px);
    margin: 14px 0 12px;
    font-weight: 600
}

.sec-head .lede {
    font-size: 17px
}

.sec-num {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .24em;
    text-transform: uppercase;
    color: var(--copper)
}

/* three pillars */
.pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px
}

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--r);
    padding: 26px 26px 24px;
    box-shadow: var(--shadow-soft);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--line-strong)
}

.card .icon-badge {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    font-size: 22px;
    background: var(--jade-soft);
    margin-bottom: 16px;
}

.card.alt .icon-badge {
    background: var(--copper-soft)
}

.card .icon-badge.num {
    font-family: var(--font-mono);
    font-size: 15.5px;
    font-weight: 700;
    letter-spacing: .06em;
    color: var(--ever)
}

.card.alt .icon-badge.num {
    color: #8A5706
}

.card h3 {
    font-size: 20.5px;
    font-weight: 600;
    margin-bottom: 8px
}

.card p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 15px
}

.card .arrow-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-top: 16px;
    font-family: var(--font-mono);
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--ever)
}

.card .arrow-link:hover {
    color: var(--jade)
}

/* two-column split */
.split {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 44px;
    align-items: start
}

.split .panel {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--r);
    padding: 28px 30px;
    box-shadow: var(--shadow-soft);
}

.split .panel.tinted {
    background: linear-gradient(165deg, #F3FAF6 0%, #FDFBF6 70%);
    border-color: #D9E9E0
}

.klist {
    list-style: none;
    padding: 0;
    margin: 14px 0 0
}

.klist li {
    padding: 12px 2px 12px 34px;
    position: relative;
    border-bottom: 1px dashed var(--line);
    color: var(--ink-soft);
    font-size: 15px;
}

.klist li:last-child {
    border-bottom: none
}

.klist li::before {
    content: "◆";
    position: absolute;
    left: 6px;
    top: 13px;
    color: var(--jade);
    font-size: 11px;
}

.klist b {
    color: var(--ever-2)
}

/* highlight numbers */
.fact-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 26px
}

.fact {
    background: linear-gradient(160deg, #FFFFFF 0%, #F7F4EA 100%);
    border: 1px solid var(--line);
    border-radius: var(--r-sm);
    padding: 18px;
    text-align: center;
}

.fact .n {
    font-family: var(--font-display);
    font-size: 31px;
    font-weight: 700;
    color: var(--ever);
    line-height: 1
}

.fact .n em {
    font-style: normal;
    font-size: 20px;
    color: var(--copper)
}

.fact .l {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-top: 8px
}

/* ---------- feature band (lab promo) ---------- */
.feature {
    position: relative;
    overflow: hidden;
    border-radius: 28px;
    background:
        radial-gradient(720px 340px at 88% -60px, rgba(46, 139, 110, .5) 0, rgba(46, 139, 110, 0) 62%),
        radial-gradient(560px 300px at -60px 108%, rgba(201, 138, 43, .4) 0, rgba(201, 138, 43, 0) 60%),
        linear-gradient(150deg, var(--ever-2) 0%, var(--ever) 58%, #136152 100%);
    color: #EAF4EF;
    box-shadow: 0 40px 80px -46px rgba(11, 54, 48, .95);
    padding: 46px 48px;
}

.feature::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: .16;
    background-image: radial-gradient(rgba(255, 255, 255, .5) 1px, transparent 1px);
    background-size: 22px 22px;
}

.feature .eyebrow {
    color: #8FD8BE
}

.feature .eyebrow::before {
    background: var(--copper-2)
}

.feature h2 {
    color: #FFFFFF;
    font-size: clamp(28px, 3.4vw, 40px);
    font-weight: 600;
    margin: 14px 0 12px
}

.feature p {
    color: #C9DFD7;
    max-width: 64ch
}

.feature-grid {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1
}

.station-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin: 20px 0 26px
}

.station-chips span {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .26);
    color: #EAF4EF;
    padding: 7px 12px;
    border-radius: 999px;
    backdrop-filter: blur(2px);
}

.lab-window {
    background: rgba(9, 38, 33, .88);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 16px;
    box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .65);
    overflow: hidden;
}

.lab-window .bar {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 11px 14px;
    background: rgba(255, 255, 255, .06);
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.lab-window .bar i {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: block
}

.lab-window .bar i:nth-child(1) {
    background: #E67E22
}

.lab-window .bar i:nth-child(2) {
    background: #F4D03F
}

.lab-window .bar i:nth-child(3) {
    background: #2ECC71
}

.lab-window .bar span {
    margin-left: 8px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: #9FBDB4;
    letter-spacing: .05em;
}

.lab-rows {
    padding: 10px 8px 12px
}

.lab-rows a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 12px;
    border-radius: 10px;
    color: #DCEFE7;
    font-family: var(--font-mono);
    font-size: 12.5px;
}

.lab-rows a:hover {
    background: rgba(255, 255, 255, .09);
    color: #fff
}

.lab-rows a .em {
    width: 22px;
    text-align: center;
    font-size: 15px
}

.lab-rows a .tag {
    margin-left: auto;
    font-size: 10px;
    letter-spacing: .08em;
    color: #8FD8BE;
    text-transform: uppercase
}

.feature .btn.copper {
    box-shadow: 0 18px 36px -18px rgba(0, 0, 0, .6)
}

/* ---------- publications ---------- */
.pub {
    position: relative;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--r);
    padding: 28px 30px 26px;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.pub::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 6px;
    background: linear-gradient(180deg, var(--jade), var(--copper-2))
}

.pub .meta {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .06em;
    color: var(--ink-faint);
    text-transform: uppercase
}

.pub h3 {
    font-size: 21px;
    font-weight: 600;
    margin: 10px 0 8px;
    line-height: 1.3
}

.pub h3 a {
    color: var(--ever-2)
}

.pub h3 a:hover {
    color: var(--jade)
}

.pub .authors {
    color: var(--ink-soft);
    font-size: 15px
}

.pub .authors b {
    color: var(--ever-2)
}

.pub .badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 14px
}

.badge {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .05em;
    padding: 5px 10px;
    border-radius: 999px;
}

.badge.green {
    background: var(--jade-soft);
    color: #1D6A51
}

.badge.amber {
    background: var(--copper-soft);
    color: #8A5706
}

.badge.grey {
    background: #EFEDE6;
    color: #6B6A60
}

.pub .highlights {
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 8px
}

.pub .highlights li {
    color: var(--ink-soft);
    font-size: 14.5px;
    padding-left: 24px;
    position: relative
}

.pub .highlights li::before {
    content: "→";
    position: absolute;
    left: 2px;
    color: var(--copper);
    font-weight: 700
}

/* ---------- link band ---------- */
.linkband {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px
}

.linkband a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--r-sm);
    padding: 18px 20px;
    font-weight: 600;
    color: var(--ever-2);
    box-shadow: var(--shadow-soft);
    transition: transform .16s ease, border-color .16s ease;
}

.linkband a:hover {
    transform: translateY(-3px);
    border-color: var(--jade)
}

.linkband a span.arr {
    font-family: var(--font-mono);
    color: var(--copper)
}

/* ---------- teaching page ---------- */
.quote-card {
    background: linear-gradient(165deg, #FFFDF7 0%, #F7F2E4 100%);
    border: 1px solid var(--line);
    border-left: 6px solid var(--jade);
    border-radius: var(--r);
    padding: 30px 34px;
    box-shadow: var(--shadow-soft);
}

.quote-card blockquote {
    margin: 0;
    font-family: var(--font-display);
    font-size: 23px;
    line-height: 1.4;
    color: var(--ever-2);
    font-weight: 500
}

.quote-card cite {
    display: block;
    margin-top: 12px;
    font-style: normal;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--ink-faint)
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px
}

.course-card {
    display: flex;
    flex-direction: column;
    gap: 10px
}

.course-card .top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px
}

.course-card .lvl {
    font-family: var(--font-mono);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--copper);
    background: var(--copper-soft);
    padding: 5px 10px;
    border-radius: 999px;
}

.course-card .lvl.g {
    color: #1D6A51;
    background: var(--jade-soft)
}

.course-card ul {
    margin: 6px 0 0;
    padding-left: 18px;
    color: var(--ink-soft);
    font-size: 14.5px
}

.course-card ul li {
    margin: 4px 0
}

.prep-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px
}

.prep .icon-badge {
    background: #EFF6F1
}

/* students box */
.notice {
    border: 1.5px dashed var(--line-strong);
    border-radius: var(--r);
    padding: 24px 28px;
    background: rgba(255, 255, 255, .6);
    color: var(--ink-soft);
}

.notice b {
    color: var(--ever-2)
}

/* ---------- contact page ---------- */
.contact-hero {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 44px;
    align-items: start
}

.mailcard {
    background:
        radial-gradient(500px 260px at 92% -40px, rgba(46, 139, 110, .45), rgba(46, 139, 110, 0) 60%),
        linear-gradient(150deg, var(--ever-2), var(--ever) 70%);
    border-radius: 24px;
    padding: 38px 40px;
    color: #EAF4EF;
    box-shadow: var(--shadow);
}

.mailcard .eyebrow {
    color: #8FD8BE
}

.mailcard a.big {
    display: inline-block;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(23px, 2.6vw, 31px);
    color: #fff;
    margin: 14px 0 6px;
    word-break: break-all;
}

.mailcard a.big:hover {
    color: #B8EEDB
}

.mailcard .row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 20px
}

.mailcard .mini {
    background: rgba(255, 255, 255, .09);
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 12px;
    padding: 10px 14px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: #CFE6DE;
}

.btn.on-dark {
    background: #fff;
    color: var(--ever-2)
}

.btn.on-dark:hover {
    filter: brightness(.96)
}

.btn.copperline {
    background: transparent;
    color: #F3D9AE;
    box-shadow: inset 0 0 0 1.6px rgba(243, 217, 174, .55)
}

.btn.copperline:hover {
    box-shadow: inset 0 0 0 1.6px #F3D9AE;
    color: #fff
}

.info-list {
    list-style: none;
    margin: 0;
    padding: 0
}

.info-list li {
    display: flex;
    gap: 14px;
    padding: 15px 2px;
    border-bottom: 1px dashed var(--line);
    color: var(--ink-soft)
}

.info-list li:last-child {
    border-bottom: none
}

.info-list .em {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    border-radius: 12px;
    background: var(--jade-soft);
    display: grid;
    place-items: center;
    font-family: var(--font-mono);
    font-size: 13.5px;
    font-weight: 700;
    letter-spacing: .04em;
    color: #1D6A51
}

.info-list b {
    color: var(--ever-2);
    display: block;
    font-size: 15px
}

.info-list small {
    font-size: 13.5px;
    line-height: 1.5;
    display: block;
    color: var(--ink-soft)
}

/* ---------- footer ---------- */
footer {
    margin-top: 70px;
    background: var(--ever-2);
    color: #B7CCC5;
    border-top: 6px solid var(--copper-2);
}

.foot-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr .9fr;
    gap: 38px;
    padding: 52px 0 34px
}

.foot-grid h4 {
    font-family: var(--font-mono);
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: #7FBFA9;
    margin: 0 0 14px;
}

.foot-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600
}

.foot-grid p {
    margin: 14px 0 0;
    font-size: 14px;
    line-height: 1.7;
    max-width: 44ch
}

.foot-links {
    list-style: none;
    margin: 0;
    padding: 0
}

.foot-links li {
    margin: 9px 0
}

.foot-links a {
    color: #D7E6E0;
    font-size: 14.5px
}

.foot-links a:hover {
    color: #fff
}

.foot-base {
    border-top: 1px solid rgba(255, 255, 255, .12);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding: 18px 0 26px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: .04em;
    color: #8FA8A0;
}

/* ---------- reveal animation ---------- */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .3, 1)
}

.reveal.in {
    opacity: 1;
    transform: none
}

.reveal.d1 {
    transition-delay: .08s
}

.reveal.d2 {
    transition-delay: .16s
}

.reveal.d3 {
    transition-delay: .24s
}

@media (prefers-reduced-motion:reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none
    }

    html {
        scroll-behavior: auto
    }
}

/* ---------- misc ---------- */
.hr {
    height: 1px;
    background: var(--line);
    border: none;
    margin: 0
}

.small {
    font-size: 13.5px;
    color: var(--ink-faint)
}

.center {
    text-align: center
}

.mt-2 {
    margin-top: 18px
}

.mt-3 {
    margin-top: 30px
}

.mt-4 {
    margin-top: 46px
}

/* ---------- responsive ---------- */
@media (max-width:1020px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 44px
    }

    .portrait-wrap {
        order: -1;
        max-width: 330px
    }

    .float-note {
        display: none
    }

    .pillars,
    .course-grid,
    .prep-grid,
    .linkband,
    .foot-grid {
        grid-template-columns: 1fr 1fr
    }

    .feature-grid,
    .split,
    .contact-hero {
        grid-template-columns: 1fr
    }

    .feature {
        padding: 34px 30px
    }

    .fact-row {
        grid-template-columns: repeat(3, 1fr)
    }
}

@media (max-width:760px) {
    .wrap {
        padding: 0 18px
    }

    .navlinks {
        display: none;
        position: absolute;
        top: 66px;
        left: 0;
        right: 0;
        background: rgba(253, 251, 246, .98);
        border-bottom: 1px solid var(--line);
        flex-direction: column;
        align-items: stretch;
        padding: 14px 18px 20px;
        gap: 4px;
    }

    body.nav-open .navlinks {
        display: flex
    }

    .navlinks a {
        padding: 12px 14px;
        border-radius: 12px
    }

    .nav-toggle {
        display: block
    }

    .nav-cta {
        margin-left: 0;
        text-align: center
    }

    .pillars,
    .course-grid,
    .prep-grid,
    .linkband,
    .foot-grid,
    .fact-row {
        grid-template-columns: 1fr
    }

    .hero {
        padding: 44px 0 18px
    }

    .feature {
        padding: 28px 22px;
        border-radius: 22px
    }

    .mailcard {
        padding: 28px 24px
    }

    .foot-base {
        flex-direction: column;
        gap: 6px
    }
}

/* station grid (teaching page — 8 lab stations) */
.station-grid {
    grid-template-columns: repeat(4, 1fr)
}

@media (max-width:1020px) {
    .station-grid {
        grid-template-columns: 1fr 1fr
    }
}

@media (max-width:760px) {
    .station-grid {
        grid-template-columns: 1fr
    }
}

/* print: keep it simple */
@media print {

    .nav,
    .float-note,
    .deco-hex {
        display: none
    }

    body {
        background: #fff
    }
}