/* =========================================================
   PKHEALTHSCIENCE
   Main Stylesheet
   ========================================================= */


/* =========================================================
   1. CSS VARIABLES
   ========================================================= */

:root {
    --primary: #087f8c;
    --primary-dark: #05616b;
    --primary-light: #e8f8fa;

    --secondary: #2ca58d;
    --accent: #64c7d3;

    --navy: #102a43;
    --text: #334e68;
    --muted: #627d98;

    --white: #ffffff;
    --light: #f7fbfc;
    --border: #d9e8ec;

    --shadow-sm: 0 5px 20px rgba(16, 42, 67, 0.07);
    --shadow-md: 0 12px 35px rgba(16, 42, 67, 0.10);
    --shadow-lg: 0 20px 50px rgba(16, 42, 67, 0.14);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;

    --transition: 0.3s ease;

    --max-width: 1200px;
}


/* =========================================================
   2. RESET
   ========================================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

button {
    font-family: inherit;
}

ul {
    list-style: none;
}


/* =========================================================
   3. GLOBAL
   ========================================================= */

.container {
    width: min(92%, var(--max-width));
    margin-inline: auto;
}

.section {
    padding: 100px 0;
}

.light-section {
    background: var(--light);
}

.section-label {
    display: inline-block;
    color: var(--primary);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 1.8px;
    margin-bottom: 12px;
}

.section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 50px;
}

.section-heading.centered {
    display: block;
    text-align: center;
    max-width: 680px;
    margin-inline: auto;
    margin-bottom: 55px;
}

.section-heading h2,
.intro-content h2 {
    color: var(--navy);
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-heading p,
.intro-content p {
    color: var(--muted);
    max-width: 650px;
}


/* =========================================================
   4. HEADER
   ========================================================= */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(217, 232, 236, 0.7);
}

.nav-container {
    height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}


/* Logo */

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-icon {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    color: var(--white);
    background: linear-gradient(
        135deg,
        var(--primary),
        var(--secondary)
    );
    border-radius: 11px;
    font-size: 1.15rem;
    box-shadow: var(--shadow-sm);
}

.logo-text {
    color: var(--navy);
    font-size: 1.08rem;
    letter-spacing: -0.5px;
}

.logo-text strong {
    font-weight: 800;
}

.logo-text span {
    color: var(--primary);
    font-weight: 800;
}


/* Desktop Navigation */

.desktop-nav {
    display: flex;
    align-items: center;
    gap: 25px;
    margin-left: auto;
}

.nav-link {
    position: relative;
    color: var(--text);
    font-size: 0.88rem;
    font-weight: 600;
    padding: 27px 0;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link.active::after {
    content: "";
    position: absolute;
    bottom: 17px;
    left: 0;
    width: 100%;
    height: 2px;
    border-radius: 10px;
    background: var(--primary);
}


/* Nav Actions */

.nav-actions {
    display: flex;
    align-items: center;
    gap: 18px;
}

.login-link {
    color: var(--navy);
    font-size: 0.9rem;
    font-weight: 700;
}

.login-link:hover {
    color: var(--primary);
}

.signup-btn {
    color: var(--white);
    background: var(--primary);
    padding: 11px 19px;
    border-radius: 8px;
    font-size: 0.86rem;
    font-weight: 700;
    transition: var(--transition);
}

.signup-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}


/* Hamburger */

.menu-toggle {
    width: 44px;
    height: 44px;
    border: 0;
    background: var(--primary-light);
    border-radius: 9px;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 21px;
    height: 2px;
    border-radius: 5px;
    background: var(--primary);
    transition: var(--transition);
}

.menu-toggle:hover {
    background: #d8f1f4;
}


/* =========================================================
   5. MOBILE MENU
   ========================================================= */

.menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 1090;
    background: rgba(5, 35, 45, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: min(88%, 360px);
    height: 100dvh;
    z-index: 1100;
    background: var(--white);
    box-shadow: -15px 0 45px rgba(16, 42, 67, 0.15);
    transform: translateX(100%);
    transition: transform 0.35s ease;
    overflow-y: auto;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-header {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border);
}

.menu-close {
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 8px;
    color: var(--navy);
    background: var(--light);
    font-size: 1.15rem;
    cursor: pointer;
}

.menu-close:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    padding: 18px;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 13px 14px;
    border-radius: 9px;
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 600;
    transition: var(--transition);
}

.mobile-nav-link i {
    width: 21px;
    color: var(--primary);
    text-align: center;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--primary);
    background: var(--primary-light);
}

.mobile-divider {
    height: 1px;
    background: var(--border);
    margin: 12px 0;
}


/* =========================================================
   6. HERO
   ========================================================= */

.hero {
    position: relative;
    min-height: 760px;
    display: flex;
    align-items: center;
    background-image:
        url("https://images.unsplash.com/photo-1576091160399-112ba8d25d1d?auto=format&fit=crop&w=2000&q=85");
    background-size: cover;
    background-position: center;
    color: var(--white);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(
            90deg,
            rgba(5, 38, 49, 0.93) 0%,
            rgba(5, 38, 49, 0.78) 48%,
            rgba(5, 38, 49, 0.45) 100%
        );
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 78px;
    max-width: 850px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 8px 13px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 22px;
}

.hero h1 {
    font-size: clamp(2.8rem, 7vw, 5.5rem);
    line-height: 1.03;
    letter-spacing: -3px;
    margin-bottom: 20px;
}

.hero h1 span {
    display: block;
    color: #83e1e9;
}

.hero-tagline {
    font-size: clamp(1.05rem, 2vw, 1.35rem);
    font-weight: 700;
    margin-bottom: 18px;
    color: #e9fdff;
}

.hero-description {
    max-width: 680px;
    color: rgba(255, 255, 255, 0.82);
    font-size: 1rem;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 13px;
}


/* Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 50px;
    padding: 13px 21px;
    border-radius: 9px;
    border: 1px solid transparent;
    font-size: 0.87rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.btn i {
    transition: transform var(--transition);
}

.btn:hover i {
    transform: translateX(4px);
}

.btn-primary {
    color: var(--white);
    background: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(8, 127, 140, 0.25);
}

.btn-secondary {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--navy);
    transform: translateY(-2px);
}

.btn-light {
    color: var(--primary);
    background: var(--white);
}

.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hero-scroll {
    position: absolute;
    z-index: 3;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-scroll i {
    animation: scrollDown 1.5s infinite;
}

@keyframes scrollDown {
    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(5px);
    }
}


/* =========================================================
   7. INTRO
   ========================================================= */

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 0.85fr;
    gap: 80px;
    align-items: center;
}

.intro-content h2 {
    max-width: 600px;
}

.intro-content p {
    margin-bottom: 15px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
}

.text-link i {
    transition: var(--transition);
}

.text-link:hover i {
    transform: translateX(5px);
}

.intro-visual {
    position: relative;
    min-height: 370px;
    display: grid;
    place-items: center;
}

.main-science-card {
    width: min(100%, 350px);
    padding: 50px 35px;
    text-align: center;
    border: 1px solid var(--border);
    background: linear-gradient(
        145deg,
        #f4fcfd,
        #ffffff
    );
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.science-icon {
    width: 80px;
    height: 80px;
    display: grid;
    place-items: center;
    margin: 0 auto 20px;
    border-radius: 50%;
    color: var(--primary);
    background: var(--primary-light);
    font-size: 2rem;
}

.main-science-card h3 {
    color: var(--navy);
    margin-bottom: 8px;
}

.main-science-card p {
    color: var(--muted);
    font-size: 0.9rem;
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 12px 16px;
    border-radius: 10px;
    background: var(--white);
    box-shadow: var(--shadow-md);
    color: var(--navy);
    font-size: 0.8rem;
    font-weight: 700;
}

.floating-card i {
    color: var(--primary);
}

.floating-card-one {
    top: 35px;
    left: 5px;
}

.floating-card-two {
    right: 0;
    bottom: 45px;
}


/* =========================================================
   8. TOPIC CARDS
   ========================================================= */

.topic-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.topic-card {
    padding: 27px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.topic-card:hover {
    transform: translateY(-6px);
    border-color: #b6dce1;
    box-shadow: var(--shadow-md);
}

.topic-icon {
    width: 50px;
    height: 50px;
    display: grid;
    place-items: center;
    margin-bottom: 20px;
    border-radius: 12px;
    color: var(--primary);
    background: var(--primary-light);
    font-size: 1.2rem;
}

.topic-card h3 {
    color: var(--navy);
    font-size: 1.05rem;
    margin-bottom: 9px;
}

.topic-card p {
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.65;
    margin-bottom: 20px;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 800;
}

.card-link i {
    transition: var(--transition);
}

.card-link:hover i {
    transform: translateX(5px);
}

.outline-btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 10px 16px;
    color: var(--primary);
    border: 1px solid #a8d5db;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    white-space: nowrap;
    transition: var(--transition);
}

.outline-btn:hover {
    color: var(--white);
    background: var(--primary);
    border-color: var(--primary);
}


/* =========================================================
   9. LEARNING JOURNEY
   ========================================================= */

.journey {
    background: var(--white);
}

.journey-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.journey-card {
    position: relative;
    padding: 32px 25px;
    text-align: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--white);
    transition: var(--transition);
}

.journey-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.step-number {
    position: absolute;
    top: 15px;
    right: 18px;
    color: #d5e8eb;
    font-size: 0.7rem;
    font-weight: 800;
}

.journey-icon {
    width: 65px;
    height: 65px;
    display: grid;
    place-items: center;
    margin: 0 auto 20px;
    border-radius: 50%;
    color: var(--primary);
    background: var(--primary-light);
    font-size: 1.35rem;
}

.journey-card h3 {
    color: var(--navy);
    font-size: 0.98rem;
    margin-bottom: 9px;
}

.journey-card p {
    color: var(--muted);
    font-size: 0.82rem;
}


/* =========================================================
   10. FEATURED
   ========================================================= */

.featured-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.featured-card {
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.featured-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.featured-image {
    height: 180px;
    display: grid;
    place-items: center;
    color: var(--white);
    font-size: 3rem;
}

.anatomy-image {
    background: linear-gradient(135deg, #187b88, #63c6d0);
}

.physiology-image {
    background: linear-gradient(135deg, #226d68, #54b7a1);
}

.microbiology-image {
    background: linear-gradient(135deg, #365b73, #65a7c2);
}

.pharmacology-image {
    background: linear-gradient(135deg, #41627c, #76a7bd);
}

.featured-content {
    padding: 23px;
}

.content-category {
    color: var(--primary);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 1.2px;
}

.featured-content h3 {
    color: var(--navy);
    font-size: 1.05rem;
    margin: 7px 0;
}

.featured-content p {
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.65;
    margin-bottom: 18px;
}

.center-button {
    display: flex;
    justify-content: center;
    margin-top: 45px;
}


/* =========================================================
   11. QUIZ CTA
   ========================================================= */

.quiz-section {
    padding-top: 80px;
    padding-bottom: 80px;
}

.quiz-box {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
    padding: 65px;
    color: var(--white);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(
            120deg,
            #075f6a,
            #0b8993
        );
    box-shadow: var(--shadow-lg);
}

.quiz-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
}

.quiz-content .section-label {
    color: #a9edf2;
}

.quiz-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
    margin-bottom: 15px;
}

.quiz-content p {
    color: rgba(255, 255, 255, 0.82);
    margin-bottom: 25px;
}

.quiz-decoration {
    position: relative;
    z-index: 2;
    width: 180px;
    height: 180px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    font-size: 5rem;
}


/* =========================================================
   12. DISCLAIMER
   ========================================================= */

.disclaimer {
    padding-top: 60px;
    padding-bottom: 60px;
    background: #fbfdfd;
}

.disclaimer-box {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 27px;
    border: 1px solid #cce5e8;
    border-radius: var(--radius-md);
    background: #f3fbfc;
}

.disclaimer-icon {
    width: 45px;
    height: 45px;
    flex-shrink: 0;
    display: grid;
    place-items: center;
    border-radius: 10px;
    color: var(--primary);
    background: var(--white);
    font-size: 1.15rem;
}

.disclaimer-box h2 {
    color: var(--navy);
    font-size: 1rem;
    margin-bottom: 5px;
}

.disclaimer-box p {
    color: var(--muted);
    font-size: 0.78rem;
}


/* =========================================================
   13. FOOTER
   ========================================================= */

.site-footer {
    padding: 75px 0 25px;
    color: #a9bfca;
    background: #092c3a;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 55px;
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-brand > p {
    max-width: 300px;
    margin: 18px 0 22px;
    font-size: 0.85rem;
}

.social-links {
    display: flex;
    gap: 9px;
}

.social-links a {
    width: 35px;
    height: 35px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    color: #b9d1d9;
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--white);
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 11px;
}

.footer-column h3 {
    color: var(--white);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.footer-column a {
    width: fit-content;
    color: #a9bfca;
    font-size: 0.8rem;
    transition: var(--transition);
}

.footer-column a:hover {
    color: #72d5dd;
    transform: translateX(3px);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 0.72rem;
}


/* =========================================================
   14. BACK TO TOP
   ========================================================= */

.back-to-top {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 800;
    width: 43px;
    height: 43px;
    display: grid;
    place-items: center;
    border: 0;
    border-radius: 10px;
    color: var(--white);
    background: var(--primary);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: var(--transition);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}


/* =========================================================
   15. SCROLL REVEAL
   ========================================================= */

.reveal {
    opacity: 0;
    transform: translateY(25px);
    transition:
        opacity 0.7s ease,
        transform 0.7s ease;
}

.reveal.show {
    opacity: 1;
    transform: translateY(0);
}


/* =========================================================
   16. ACCESSIBILITY
   ========================================================= */

a:focus-visible,
button:focus-visible {
    outline: 3px solid rgba(100, 199, 211, 0.7);
    outline-offset: 3px;
}


/* =========================================================
   17. TABLETS
   ========================================================= */

@media (max-width: 1050px) {

    .desktop-nav {
        gap: 17px;
    }

    .topic-grid,
    .journey-grid,
    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .intro-grid {
        gap: 50px;
    }

    .footer-grid {
        gap: 35px;
    }
}


/* =========================================================
   18. MOBILE NAVIGATION
   ========================================================= */

@media (max-width: 850px) {

    .desktop-nav,
    .nav-actions {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        min-height: 700px;
    }

    .intro-grid {
        grid-template-columns: 1fr;
    }

    .intro-visual {
        min-height: 330px;
    }

    .quiz-box {
        padding: 45px;
    }

    .quiz-decoration {
        width: 140px;
        height: 140px;
        font-size: 3.8rem;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}


/* =========================================================
   19. SMALL TABLETS / LARGE PHONES
   ========================================================= */

@media (max-width: 650px) {

    .section {
        padding: 75px 0;
    }

    .section-heading {
        display: block;
        margin-bottom: 35px;
    }

    .section-heading .outline-btn {
        margin-top: 20px;
    }

    .hero {
        min-height: 680px;
        background-position: 62% center;
    }

    .hero h1 {
        letter-spacing: -2px;
    }

    .hero-description {
        font-size: 0.9rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .topic-grid,
    .journey-grid,
    .featured-grid {
        grid-template-columns: 1fr;
    }

    .topic-card {
        padding: 24px;
    }

    .quiz-box {
        flex-direction: column;
        align-items: flex-start;
        padding: 35px 27px;
    }

    .quiz-decoration {
        display: none;
    }

    .disclaimer-box {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 35px 25px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}


/* =========================================================
   20. SMALL PHONES
   ========================================================= */

@media (max-width: 420px) {

    .nav-container {
        height: 70px;
    }

    .logo-icon {
        width: 38px;
        height: 38px;
    }

    .logo-text {
        font-size: 0.95rem;
    }

    .hero {
        min-height: 650px;
    }

    .hero-content {
        padding-top: 60px;
    }

    .hero h1 {
        font-size: 2.55rem;
    }

    .hero-tagline {
        font-size: 0.98rem;
    }

    .intro-visual {
        min-height: 290px;
    }

    .main-science-card {
        padding: 35px 25px;
    }

    .floating-card {
        padding: 9px 12px;
        font-size: 0.7rem;
    }

    .floating-card-one {
        left: -3px;
    }

    .floating-card-two {
        right: -3px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-brand {
        grid-column: auto;
    }
}


/* =========================================================
   21. REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}
/* Compact desktop navigation */
.desktop-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.desktop-nav .nav-link {
    font-size: 0.78rem;
    padding: 6px 0;
    white-space: nowrap;
}

/* Reduce spacing around the header */
.site-header .header-container {
    gap: 12px;
}

/* Make the logo section slightly smaller */
.logo-text {
    font-size: 1.05rem;
}

.logo-subtitle {
    font-size: 0.65rem;
}

/* Compact mobile navigation */
.mobile-nav-link {
    gap: 10px;
    padding: 10px 14px;
    font-size: 0.9rem;
}

.mobile-nav-link i {
    width: 20px;
    font-size: 0.95rem;
}