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

:root {
    --black: #07111f;
    --dark: #0b1728;
    --blue: #1261a0;
    --light-blue: #2f8edb;
    --white: #ffffff;
    --light: #f4f8fc;
    --text: #1c2a3a;
    --muted: #66788a;
    --border: #dce6ef;
    --success: #198754;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    font-family: "Poppins", sans-serif;
    background: var(--light);
    color: var(--text);
}

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

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

.landing {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--black);
}

.landing-background {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(47, 142, 219, 0.25), transparent 35%),
        radial-gradient(circle at 80% 80%, rgba(18, 97, 160, 0.3), transparent 40%);
}

.landing-overlay {
    position: absolute;
    inset: 0;
    background: rgba(4, 12, 23, 0.45);
}

.landing-card {
    position: relative;
    z-index: 2;
    width: min(90%, 760px);
    padding: 55px 50px;
    text-align: center;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 28px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.35);
}

.landing-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 22px;
    background: var(--blue);
    color: var(--white);
    font-size: 30px;
}

.landing-label,
.section-label {
    display: inline-block;
    color: var(--blue);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
}

.landing-card h1 {
    margin: 12px 0 18px;
    color: var(--black);
    font-size: clamp(32px, 5vw, 52px);
    line-height: 1.15;
}

.landing-card > p {
    max-width: 600px;
    margin: 0 auto;
    color: var(--muted);
    line-height: 1.8;
}

.landing-features {
    display: flex;
    justify-content: center;
    gap: 45px;
    margin: 35px 0;
}

.landing-features div {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
}

.landing-features i {
    color: var(--blue);
    font-size: 22px;
}

.landing-button,
.primary-button,
.secondary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 24px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s ease;
}

.landing-button,
.primary-button {
    background: var(--blue);
    color: var(--white);
}

.landing-button:hover,
.primary-button:hover {
    background: var(--light-blue);
    transform: translateY(-2px);
}

.secondary-button {
    background: var(--white);
    color: var(--text);
    border: 1px solid var(--border);
}

.secondary-button:hover {
    border-color: var(--blue);
    color: var(--blue);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 5px 20px rgba(7, 17, 31, 0.05);
}

.header-main {
    width: min(92%, 1200px);
    min-height: 120px;
    margin: auto;
    display: flex;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 19px;
}

.brand-icon {
    width: 66px;
    height: 66px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    background: var(--blue);
    color: var(--white);
    font-size: 29px;
    box-shadow: 0 9px 24px rgba(18, 97, 160, 0.18);
}

.brand-text strong {
    display: block;
    color: var(--black);
    font-size: 26px;
    font-weight: 700;
}

.brand-text span {
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 16px;
}

.navigation-area {
    border-top: 1px solid #edf2f6;
    background: #fafcfe;
}

.site-nav {
    width: min(92%, 1200px);
    min-height: 58px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.site-nav a {
    position: relative;
    height: 58px;
    padding: 0 17px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    transition: 0.2s ease;
}

.site-nav a i {
    font-size: 13px;
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--blue);
}

.site-nav a.active::after {
    content: "";
    position: absolute;
    left: 15px;
    right: 15px;
    bottom: 0;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--blue);
}

.hero-section {
    width: min(92%, 1200px);
    min-height: 620px;
    margin: auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 60px;
}

.hero-content h1 {
    margin: 15px 0 20px;
    color: var(--black);
    font-size: clamp(40px, 6vw, 68px);
    line-height: 1.08;
}

.hero-content h1 span {
    color: var(--blue);
}

.hero-content p {
    max-width: 650px;
    margin-bottom: 30px;
    color: var(--muted);
    line-height: 1.8;
}

.hero-visual {
    position: relative;
    min-height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-circle {
    width: 270px;
    height: 270px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--dark);
    color: var(--white);
    font-size: 90px;
    box-shadow: 0 25px 60px rgba(7, 17, 31, 0.2);
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 13px 18px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 12px 35px rgba(7, 17, 31, 0.12);
    font-size: 12px;
    font-weight: 600;
}

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

.card-one {
    top: 55px;
    left: 10px;
}

.card-two {
    right: 0;
    top: 155px;
}

.card-three {
    bottom: 50px;
    left: 35px;
}

.content-section {
    width: min(92%, 1200px);
    margin: auto;
    padding: 90px 0;
}

.light-section {
    width: 100%;
    padding-left: max(4%, calc((100% - 1200px) / 2));
    padding-right: max(4%, calc((100% - 1200px) / 2));
    background: var(--white);
}

.section-heading {
    max-width: 760px;
    margin: 0 auto 50px;
    text-align: center;
}

.section-heading h1,
.section-heading h2 {
    margin: 12px 0 15px;
    color: var(--black);
    font-size: clamp(30px, 4vw, 44px);
}

.section-heading p {
    color: var(--muted);
    line-height: 1.8;
}

.information-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.information-card {
    padding: 30px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 18px;
}

.information-icon,
.assessment-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    border-radius: 13px;
    background: #eaf3fb;
    color: var(--blue);
    font-size: 20px;
}

.information-card h3 {
    margin-bottom: 10px;
    color: var(--black);
}

.information-card p {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}

.literacy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.literacy-item {
    display: flex;
    gap: 20px;
    padding: 25px;
    border: 1px solid var(--border);
    border-radius: 15px;
}

.literacy-item > span {
    color: var(--blue);
    font-size: 20px;
    font-weight: 800;
}

.literacy-item h3 {
    margin-bottom: 7px;
}

.literacy-item p {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}

.call-to-action {
    width: min(92%, 1200px);
    margin: 70px auto;
    padding: 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 35px;
    border-radius: 22px;
    background: var(--dark);
    color: var(--white);
}

.call-to-action h2 {
    margin: 10px 0;
    font-size: 30px;
}

.call-to-action p {
    max-width: 650px;
    color: #b9c7d5;
    line-height: 1.7;
}

.call-to-action .section-label {
    color: #7ebcf0;
}

.assessment-grid {
    width: min(100%, 1100px);
    margin: auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.assessment-card {
    position: relative;
    padding: 32px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 18px;
    transition: 0.2s ease;
}

.assessment-card:hover {
    transform: translateY(-9px);
    box-shadow: 0 15px 40px rgba(7, 17, 31, 0.09);
}

.assessment-number {
    position: absolute;
    top: 25px;
    right: 28px;
    color: #b8c7d5;
    font-size: 25px;
    font-weight: 800;
}

.assessment-card h2 {
    margin-bottom: 10px;
    color: var(--black);
    font-size: 21px;
}

.assessment-card p {
    min-height: 75px;
    margin-bottom: 22px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}

.quiz-section,
.learning-section,
.results-section {
    width: min(92%, 900px);
    margin: auto;
    padding: 80px 0;
}

.quiz-container,
.learning-container,
.results-container {
    padding: 45px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 22px;
    box-shadow: 0 15px 45px rgba(7, 17, 31, 0.07);
}

.quiz-heading,
.learning-heading,
.results-heading {
    margin-bottom: 35px;
}

.quiz-heading h1,
.learning-heading h1,
.results-heading h1 {
    margin: 10px 0;
    color: var(--black);
    font-size: 34px;
}

.quiz-heading p,
.learning-heading p,
.results-heading p {
    color: var(--muted);
    line-height: 1.7;
}

.quiz-progress-area {
    margin-bottom: 35px;
}

.quiz-progress-text {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
}

.quiz-progress {
    height: 7px;
    overflow: hidden;
    border-radius: 10px;
    background: #e6edf3;
}

.quiz-progress-bar {
    width: 20%;
    height: 100%;
    background: var(--blue);
    transition: width 0.2s ease;
}

.question-area h2 {
    margin-bottom: 25px;
    color: var(--black);
    font-size: 20px;
    line-height: 1.5;
}

.choices {
    display: grid;
    gap: 12px;
}

.choice-button {
    width: 100%;
    padding: 15px 18px;
    text-align: left;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-family: inherit;
    font-size: 13px;
    cursor: pointer;
    transition: 0.2s ease;
}

.choice-button:hover {
    border-color: var(--blue);
    background: #f4f9fd;
}

.choice-button.selected {
    border-color: var(--blue);
    background: #eaf3fb;
    color: var(--blue);
    font-weight: 600;
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 35px;
}

.quiz-navigation button {
    border: 0;
}

.quiz-navigation button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.learning-notice {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 30px;
    padding: 18px;
    border-radius: 12px;
    background: #eaf3fb;
}

.learning-notice > i {
    margin-top: 3px;
    color: var(--blue);
}

.learning-notice strong {
    font-size: 13px;
}

.learning-notice p {
    margin-top: 4px;
    color: var(--muted);
    font-size: 12px;
}

.learning-points {
    display: grid;
    gap: 15px;
}

.learning-point {
    display: flex;
    gap: 18px;
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: 14px;
}

.learning-point-number {
    flex-shrink: 0;
    color: var(--blue);
    font-size: 18px;
    font-weight: 800;
}

.learning-point h2 {
    margin-bottom: 6px;
    font-size: 16px;
}

.learning-point p {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}

.learning-bottom {
    margin-top: 35px;
    padding-top: 25px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-top: 1px solid var(--border);
}

.learning-bottom p {
    color: var(--muted);
    font-size: 13px;
}

.score-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 20px;
}

.score-card {
    padding: 30px;
    text-align: center;
    border: 1px solid var(--border);
    border-radius: 16px;
}

.score-card span {
    display: block;
    color: var(--muted);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
}

.score-card strong {
    display: block;
    margin: 10px 0 3px;
    color: var(--blue);
    font-size: 42px;
}

.score-card p {
    color: var(--muted);
}

.score-arrow {
    color: var(--blue);
    font-size: 25px;
}

.improvement-card {
    margin-top: 25px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 18px;
    border-radius: 15px;
    background: var(--dark);
    color: var(--white);
}

.improvement-icon {
    width: 55px;
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: rgba(255, 255, 255, 0.1);
    font-size: 22px;
}

.improvement-card span {
    display: block;
    color: #9db0c2;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
}

.improvement-card strong {
    display: block;
    margin: 3px 0;
    font-size: 25px;
}

.improvement-card p {
    color: #b9c7d5;
    font-size: 12px;
}

.results-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 30px;
}

.site-footer {
    padding: 30px 20px;
    text-align: center;
    background: var(--black);
    color: #8fa2b5;
    font-size: 11px;
    line-height: 1.8;
}

.site-footer a {
    color: inherit;
    font-weight: 600;
    transition: 0.2s ease;
}

.site-footer a:hover {
    color: var(--white);
}

.about-button {
    position: fixed;
    left: 20px;
    bottom: 20px;
    z-index: 200;
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 12px 17px;
    border: none;
    border-radius: 10px;
    background: var(--dark);
    color: var(--white);
    font-family: "Poppins", sans-serif;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.18);
    transition: 0.2s ease;
}

.about-button:hover {
    background: var(--blue);
    transform: translateY(-2px);
}

.about-overlay {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(4, 12, 23, 0.65);
}

.about-overlay.show {
    display: flex;
}

.about-popup {
    position: relative;
    width: min(92%, 600px);
    max-height: 85vh;
    overflow-y: auto;
    padding: 42px;
    background: var(--white);
    border-radius: 22px;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.3);
    animation: aboutPopupIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-close {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 50%;
    background: #edf2f6;
    color: var(--text);
    cursor: pointer;
    transition: 0.2s ease;
}

.about-close:hover {
    background: var(--blue);
    color: var(--white);
}

.about-popup h2 {
    margin: 10px 0 15px;
    color: var(--black);
    font-size: 30px;
}

.about-popup > p {
    margin-bottom: 25px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.8;
}

.about-details {
    display: grid;
    gap: 12px;
}

.about-detail {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 13px;
}

.about-detail-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: #eaf3fb;
    color: var(--blue);
}

.about-detail h3 {
    margin-bottom: 5px;
    color: var(--black);
    font-size: 14px;
}

.about-detail p {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.7;
}

.about-creators {
    margin-top: 35px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
}

.about-creators-heading {
    margin-bottom: 20px;
}

.about-creators-heading h3 {
    margin: 7px 0;
    color: var(--black);
    font-size: 22px;
}

.about-creators-heading p {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.7;
}

.creator-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.creator-card {
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 14px;
    transition: 0.2s ease;
}

.creator-card:hover {
    transform: translateY(-7px);
    box-shadow: 0 10px 25px rgba(7, 17, 31, 0.08);
}

.creator-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #eaf3fb;
}

.creator-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.creator-info {
    padding: 16px;
}

.creator-info h4 {
    margin-bottom: 3px;
    color: var(--black);
    font-size: 14px;
}

.creator-info span {
    display: block;
    margin-bottom: 8px;
    color: var(--blue);
    font-size: 10px;
    font-weight: 600;
}

.creator-info p {
    color: var(--muted);
    font-size: 11px;
    line-height: 1.6;
}

.learning-infographic {
    width: min(92%, 1000px);
    margin: 50px auto;
}

.learning-infographic .section-heading {
    margin-bottom: 25px;
}

.infographic-viewer {
    width: 100%;
    padding: 25px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(7, 17, 31, 0.06);
}

.infographic-image {
    width: 100%;
    max-height: 700px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: #f1f5f8;
}

.infographic-image img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 700px;
    object-fit: contain;
}

.infographic-actions {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.infographic-actions .secondary-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.learning-continue {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 15px;
    margin-top: 30px;
}

.learning-continue p {
    margin: 0;
    text-align: center;
}

.library-preview {
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.library-preview img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    object-fit: contain;
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: 18px;
    width: 100%;
    max-width: 950px;
    margin: 0 auto;
}

.faq-item {
    overflow: hidden;
    background: var(--white);
    border: 1px solid #d9e2ec;
    border-radius: 14px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.faq-item:hover {
    border-color: #1d4f91;
    box-shadow: 0 7px 18px rgba(0, 0, 0, 0.09);
    transform: translateY(-2px);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: #f5f8fc;
    border: none;
    color: #14213d;
    font-family: "Poppins", sans-serif;
    font-size: 16px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: background 0.25s ease, color 0.25s ease;
}

.faq-question.active {
    background: #eaf1f9;
    color: #173f73;
}

.faq-question i {
    flex-shrink: 0;
    font-size: 14px;
    transition: transform 0.3s ease;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0;
    background: var(--white);
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 18px 0 20px;
}

.faq-answer p {
    margin: 0;
    padding: 0 24px;
    color: #4b5563;
    font-size: 14px;
    line-height: 1.8;
}

.contact-layout {
    width: 100%;
    max-width: 1150px;
    margin: 50px auto 0;
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 35px;
    align-items: stretch;
}

.contact-information {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 18px;
    transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.contact-card:hover {
    transform: translateY(-7px);
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.20);
}

.contact-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.08);
    font-size: 20px;
}

.contact-card span {
    display: block;
    margin-bottom: 5px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    opacity: 0.65;
}

.contact-card h3 {
    margin: 0 0 7px;
    font-size: 18px;
    font-weight: 600;
}

.contact-card p {
    margin: 0;
    font-size: 13px;
    line-height: 1.7;
    opacity: 0.70;
}

.contact-form-container {
    padding: 32px;
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 22px;
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.18);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.20);
    color: inherit;
    font-family: "Poppins", sans-serif;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.form-group input {
    height: 48px;
}

.form-group textarea {
    min-height: 145px;
    resize: vertical;
    line-height: 1.6;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    opacity: 0.45;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(0, 0, 0, 0.28);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.05);
}

.contact-form .primary-button {
    width: 100%;
    min-height: 50px;
    margin-top: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
}

.contact-form .primary-button:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

.form-message {
    min-height: 22px;
    margin: 0;
    text-align: center;
    font-size: 13px;
    line-height: 1.5;
    opacity: 0.85;
}

.content-section > .section-heading {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.content-section > .section-heading p {
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.more-content-card {
    width: min(100%, 950px);
    margin: 0 auto 25px;
    padding: 35px;
    display: flex;
    align-items: flex-start;
    gap: 25px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: 0 12px 35px rgba(7, 17, 31, 0.07);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

.more-content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 45px rgba(7, 17, 31, 0.10);
}

.more-content-icon {
    flex-shrink: 0;
    width: 58px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    background: #eaf3fb;
    color: var(--blue);
    font-size: 23px;
}

.more-content-text {
    flex: 1;
}

.more-content-text h2 {
    margin-bottom: 12px;
    color: var(--black);
    font-size: 22px;
}

.more-content-text p {
    margin-bottom: 15px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.8;
}

.more-content-text p:last-child {
    margin-bottom: 0;
}

.references-container {
    width: min(100%, 950px);
    margin: 0 auto;
    display: grid;
    gap: 15px;
}

.reference-card {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 22px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.3s ease;
}

.reference-card:hover {
    transform: translateY(-4px);
    border-color: #c9dbea;
    box-shadow: 0 12px 30px rgba(7, 17, 31, 0.08);
}

.reference-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: #eaf3fb;
    color: var(--blue);
    font-size: 19px;
}

.reference-content {
    flex: 1;
}

.reference-content h3 {
    margin-bottom: 5px;
    color: var(--black);
    font-size: 15px;
}

.reference-content p {
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.7;
}

.reference-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--blue);
    font-size: 11px;
    font-weight: 600;
    transition: 0.2s ease;
}

.reference-link:hover {
    color: var(--light-blue);
}

.landing-card {
    animation: landingCardIn 1.1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.landing-icon {
    animation: landingIconIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.15s both;
}

.landing-card h1 {
    animation: contentFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.25s both;
}

.landing-card > p {
    animation: contentFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}

.landing-features {
    animation: contentFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.55s both;
}

.landing-button {
    animation: buttonIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.7s both;
}

.site-header {
    animation: headerIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.brand {
    animation: headerItemIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.15s both;
}

.site-nav a {
    animation: navItemIn 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.site-nav a:nth-child(1) { animation-delay: 0.2s; }
.site-nav a:nth-child(2) { animation-delay: 0.27s; }
.site-nav a:nth-child(3) { animation-delay: 0.34s; }
.site-nav a:nth-child(4) { animation-delay: 0.41s; }
.site-nav a:nth-child(5) { animation-delay: 0.48s; }

.hero-content {
    animation: heroContentIn 1.1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-visual {
    animation: heroVisualIn 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.15s both;
}

.hero-content h1 {
    animation: contentFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero-content p {
    animation: contentFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.35s both;
}

.hero-content .primary-button,
.hero-content .secondary-button {
    animation: buttonIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
}

.hero-circle {
    animation:
        heroCircleIn 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.25s both,
        heroFloat 6s ease-in-out 1.5s infinite;
}

.floating-card {
    opacity: 0;
}

.card-one {
    animation:
        floatingCardIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.55s both,
        cardFloatOne 5s ease-in-out 1.5s infinite;
}

.card-two {
    animation:
        floatingCardIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.7s both,
        cardFloatTwo 5.5s ease-in-out 1.7s infinite;
}

.card-three {
    animation:
        floatingCardIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.85s both,
        cardFloatThree 5.2s ease-in-out 1.9s infinite;
}

.section-heading {
    animation: sectionIn 1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.information-card,
.literacy-item,
.assessment-card,
.learning-point,
.score-card,
.improvement-card,
.faq-item,
.contact-card,
.contact-form-container,
.creator-card,
.learning-infographic,
.call-to-action,
.more-content-card,
.reference-card {
    animation: cardIn 1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.information-card:nth-child(1),
.literacy-item:nth-child(1),
.assessment-card:nth-child(1),
.learning-point:nth-child(1),
.faq-item:nth-child(1),
.creator-card:nth-child(1),
.reference-card:nth-child(1) {
    animation-delay: 0.15s;
}

.information-card:nth-child(2),
.literacy-item:nth-child(2),
.assessment-card:nth-child(2),
.learning-point:nth-child(2),
.faq-item:nth-child(2),
.creator-card:nth-child(2),
.reference-card:nth-child(2) {
    animation-delay: 0.25s;
}

.information-card:nth-child(3),
.literacy-item:nth-child(3),
.assessment-card:nth-child(3),
.learning-point:nth-child(3),
.faq-item:nth-child(3),
.creator-card:nth-child(3),
.reference-card:nth-child(3) {
    animation-delay: 0.35s;
}

.information-card:nth-child(4),
.literacy-item:nth-child(4),
.assessment-card:nth-child(4),
.learning-point:nth-child(4),
.faq-item:nth-child(4),
.creator-card:nth-child(4),
.reference-card:nth-child(4) {
    animation-delay: 0.45s;
}

.information-card:nth-child(5),
.assessment-card:nth-child(5),
.learning-point:nth-child(5),
.faq-item:nth-child(5),
.creator-card:nth-child(5),
.reference-card:nth-child(5) {
    animation-delay: 0.55s;
}

.information-card:nth-child(6),
.assessment-card:nth-child(6),
.learning-point:nth-child(6),
.faq-item:nth-child(6),
.creator-card:nth-child(6),
.reference-card:nth-child(6) {
    animation-delay: 0.65s;
}

.information-card,
.assessment-card,
.literacy-item,
.learning-point,
.contact-card,
.creator-card {
    transition:
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        box-shadow 0.4s ease;
}

.information-card:hover,
.literacy-item:hover,
.learning-point:hover,
.contact-card:hover,
.creator-card:hover {
    transform: translateY(-7px);
}

@keyframes landingCardIn {
    from {
        opacity: 0;
        transform: translateY(45px) scale(0.96);
        filter: blur(4px);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

@keyframes landingIconIn {
    from {
        opacity: 0;
        transform: scale(0.7) rotate(-10deg);
        filter: blur(3px);
    }

    to {
        opacity: 1;
        transform: scale(1) rotate(0);
        filter: blur(0);
    }
}

@keyframes contentFadeUp {
    from {
        opacity: 0;
        transform: translateY(28px);
        filter: blur(3px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

@keyframes buttonIn {
    from {
        opacity: 0;
        transform: translateY(22px) scale(0.96);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes headerIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes headerItemIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes navItemIn {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heroContentIn {
    from {
        opacity: 0;
        transform: translateX(-55px);
        filter: blur(4px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
        filter: blur(0);
    }
}

@keyframes heroVisualIn {
    from {
        opacity: 0;
        transform: translateX(55px) scale(0.95);
        filter: blur(4px);
    }

    to {
        opacity: 1;
        transform: translateX(0) scale(1);
        filter: blur(0);
    }
}

@keyframes heroCircleIn {
    from {
        opacity: 0;
        transform: scale(0.75);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

    50% {
        transform: translateY(-10px);
    }
}

@keyframes floatingCardIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.92);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

    50% {
        transform: translateY(-9px);
    }
}

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

    50% {
        transform: translateY(8px);
    }
}

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

    50% {
        transform: translateY(-7px);
    }
}

@keyframes sectionIn {
    from {
        opacity: 0;
        transform: translateY(35px);
        filter: blur(3px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

@keyframes cardIn {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.97);
        filter: blur(2px);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

@keyframes aboutPopupIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.96);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 900px) {
    .contact-layout {
        grid-template-columns: 1fr;
        max-width: 700px;
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .hero-content {
        animation-name: mobileHeroIn;
    }

    .hero-visual {
        animation-name: mobileHeroVisualIn;
    }

    .information-card,
    .literacy-item,
    .assessment-card,
    .learning-point,
    .score-card,
    .improvement-card,
    .faq-item,
    .contact-card,
    .contact-form-container,
    .creator-card,
    .learning-infographic,
    .call-to-action {
        animation-duration: 0.8s;
    }

    .information-card:hover,
    .assessment-card:hover,
    .literacy-item:hover,
    .learning-point:hover,
    .contact-card:hover,
    .creator-card:hover {
        transform: translateY(-4px);
    }

    .faq-container {
        gap: 14px;
    }

    .faq-question {
        padding: 17px 18px;
        font-size: 14px;
    }

    .faq-answer p {
        padding-left: 18px;
        padding-right: 18px;
        font-size: 13px;
        line-height: 1.7;
    }

    .more-content-card {
        padding: 25px;
        gap: 18px;
    }

    .more-content-icon {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .more-content-text h2 {
        font-size: 19px;
    }

    .more-content-text p {
        font-size: 12px;
    }

    .reference-card {
        padding: 18px;
        gap: 14px;
    }

    .reference-icon {
        width: 42px;
        height: 42px;
        font-size: 17px;
    }

    .reference-content h3 {
        font-size: 14px;
    }

    .reference-content p {
        font-size: 11px;
    }

    .contact-card {
        padding: 20px;
        gap: 14px;
    }

    .contact-icon {
        width: 46px;
        height: 46px;
        min-width: 46px;
    }

    .contact-form-container {
        padding: 22px;
        border-radius: 18px;
    }

    .contact-layout {
        margin-top: 35px;
    }

    .contact-card h3 {
        font-size: 16px;
    }

    .contact-card p {
        font-size: 12px;
    }
}

@media (max-width: 600px) {
    .learning-infographic {
        width: 94%;
    }

    .infographic-viewer {
        padding: 15px;
    }

    .infographic-image,
    .infographic-image img {
        max-height: 550px;
    }
}

@media (max-width: 500px) {
    .more-content-card {
        flex-direction: column;
        padding: 22px;
    }

    .more-content-icon {
        margin-bottom: 2px;
    }

    .reference-card {
        align-items: flex-start;
    }
}

@keyframes mobileHeroIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes mobileHeroVisualIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.97);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}