/* ================================================
   eLearning how - Minimal Design CSS
   Simple, Clean, Professional
================================================ */

/* ===== CSS Variables ===== */
:root {
    /* Colors - Minimal Palette */
    --color-primary: #2563eb;
    --color-text: #374151;
    --color-text-light: #6b7280;
    --color-border: #e5e7eb;
    --color-bg: #ffffff;
    --color-bg-gray: #f9fafb;
    
    /* Typography */
    --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height: 1.7;
    
    /* Spacing */
    --spacing-unit: 8px;
    --container-width: 1100px;
    --header-height: 130px;
    
    /* Transitions */
    --transition: 0.2s ease;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    line-height: var(--line-height);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.3;
    color: #1f2937;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity var(--transition);
}

a:hover {
    opacity: 0.7;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
}

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 120px;
    width: auto;
    object-fit: contain;
    object-position: center;
    display: block;
}

.nav-list {
    display: flex;
    gap: calc(var(--spacing-unit) * 5);
    list-style: none;
}

.nav-link {
    font-size: 0.9375rem;
    color: var(--color-text-light);
}

.nav-link:hover {
    color: var(--color-text);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    padding: calc(var(--header-height) + var(--spacing-unit) * 2) 0 calc(var(--spacing-unit) * 6);
    text-align: center;
}

.hero-logo {
    max-width: 700px;
    width: 100%;
    height: auto;
    margin-bottom: 0;
    margin-top: calc(var(--spacing-unit) * -4);
    object-fit: contain;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.hero-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto calc(var(--spacing-unit) * 4);
}

.hero-actions {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
    justify-content: center;
}

/* ===== Sections ===== */
.section {
    padding: calc(var(--spacing-unit) * 12) 0;
}

.section-gray {
    background-color: var(--color-bg-gray);
}

.section-title {
    font-size: 2rem;
    font-weight: 500;
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 6);
    letter-spacing: -0.5px;
}

.section-lead {
    text-align: center;
    color: var(--color-text-light);
    max-width: 800px;
    margin: 0 auto calc(var(--spacing-unit) * 8);
    line-height: 1.8;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 1.75) calc(var(--spacing-unit) * 4);
    font-size: 0.9375rem;
    font-weight: 400;
    border: 1px solid;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    opacity: 1;
    background-color: #1d4ed8;
    border-color: #1d4ed8;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    opacity: 1;
    border-color: var(--color-text);
}

.btn-line {
    background-color: #06C755;
    color: white;
    border-color: #06C755;
    display: inline-flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 1);
}

.btn-line:hover {
    opacity: 1;
    background-color: #05B04B;
    border-color: #05B04B;
}

.btn-line svg {
    flex-shrink: 0;
}

.btn-small {
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
    font-size: 0.875rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* ===== Features ===== */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 5);
    margin-top: calc(var(--spacing-unit) * 8);
}

.feature {
    text-align: center;
}

.feature h3 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.feature p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===== Instructor ===== */
.instructor-profile {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: calc(var(--spacing-unit) * 5);
}

.instructor-header {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 5);
    padding-bottom: calc(var(--spacing-unit) * 4);
    border-bottom: 1px solid var(--color-border);
}

.instructor-avatar {
    width: 150px;
    height: 150px;
    background: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    border: 3px solid var(--color-primary);
    box-shadow: var(--shadow-md);
}

.instructor-photo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.instructor-icon {
    font-size: 3rem;
    font-style: normal;
}

.instructor-title h3 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.instructor-role {
    font-size: 0.9375rem;
    color: var(--color-text-light);
}

.instructor-credential {
    font-size: 1rem;
    color: var(--color-primary);
    font-weight: 500;
}

.instructor-content {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 4);
}

.instructor-section h4 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.instructor-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 1.5);
}

.instructor-list li {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.7;
    padding-left: calc(var(--spacing-unit) * 2.5);
    position: relative;
}

.instructor-list li:before {
    content: "・";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 500;
}

.instructor-message {
    background-color: var(--color-bg-gray);
    padding: calc(var(--spacing-unit) * 3);
    border-radius: 4px;
    border-left: 3px solid var(--color-primary);
}

.instructor-message h4 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.instructor-message p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ===== Courses ===== */
.course-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--spacing-unit) * 4);
    max-width: 900px;
    margin: 0 auto;
}

.course-item {
    padding: calc(var(--spacing-unit) * 4);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    transition: border-color var(--transition);
}

.course-item:hover {
    border-color: var(--color-primary);
}

.course-item h3 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.course-item p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.course-target {
    display: inline-block;
    font-size: 0.8125rem;
    color: var(--color-text-light);
    padding: calc(var(--spacing-unit) * 0.5) calc(var(--spacing-unit) * 1.5);
    background-color: var(--color-bg-gray);
    border-radius: 3px;
}

/* ===== Services ===== */
.service-list {
    display: grid;
    gap: calc(var(--spacing-unit) * 5);
    max-width: 800px;
    margin: 0 auto;
}

.service-item {
    padding-bottom: calc(var(--spacing-unit) * 5);
    border-bottom: 1px solid var(--color-border);
}

.service-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.service-item h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.service-item p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ===== Pricing ===== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.pricing-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: calc(var(--spacing-unit) * 4);
    text-align: center;
    transition: border-color var(--transition);
}

.pricing-card:hover {
    border-color: var(--color-primary);
}

.pricing-title {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.pricing-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: calc(var(--spacing-unit) * 3);
    padding-bottom: calc(var(--spacing-unit) * 3);
    border-bottom: 1px solid var(--color-border);
}

.pricing-plans {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 2);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.pricing-plan {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.plan-label {
    font-size: 0.9375rem;
    color: var(--color-text);
}

.plan-price {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-primary);
}

.pricing-note {
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

.pricing-other {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 8);
    padding: calc(var(--spacing-unit) * 4) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.pricing-other-item {
    text-align: center;
}

.pricing-other-item h4 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.price-large {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.price-note {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.price-note strong {
    color: var(--color-primary);
}

.pricing-business {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.business-title {
    font-size: 1.25rem;
    font-weight: 500;
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.business-services {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.business-service {
    text-align: center;
    padding: calc(var(--spacing-unit) * 2);
}

.business-service h4 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.business-service p {
    font-size: 1.125rem;
    color: var(--color-primary);
    font-weight: 500;
}

.business-note {
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.pricing-cta {
    text-align: center;
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto calc(var(--spacing-unit) * 6);
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: calc(var(--spacing-unit) * 3) 0;
    background: none;
    border: none;
    text-align: left;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: color var(--transition);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-primary);
    transition: transform var(--transition);
    flex-shrink: 0;
    margin-left: calc(var(--spacing-unit) * 2);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 0 calc(var(--spacing-unit) * 3);
    color: var(--color-text-light);
    line-height: 1.8;
    font-size: 0.9375rem;
}

.faq-cta {
    text-align: center;
    padding: calc(var(--spacing-unit) * 4);
    background-color: var(--color-bg-gray);
    border-radius: 4px;
}

.faq-cta p {
    margin-bottom: calc(var(--spacing-unit) * 2);
    color: var(--color-text-light);
}

/* ===== Booking ===== */
.booking-tabs {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
    justify-content: center;
    margin-bottom: calc(var(--spacing-unit) * 6);
    flex-wrap: wrap;
}

.booking-tab {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 1);
    padding: calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 6);
    background-color: white;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.3s ease;
}

.booking-tab:hover {
    border-color: var(--color-primary);
    background-color: #EFF6FF;
}

.booking-tab.active {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.booking-tab .tab-icon {
    font-size: 1.5rem;
}

.booking-tab .tab-text {
    font-size: 1rem;
}

.booking-content {
    display: none;
}

.booking-content.active {
    display: block;
}

.booking-container {
    max-width: 1000px;
    margin: 0 auto calc(var(--spacing-unit) * 6);
}

.booking-placeholder {
    background-color: var(--color-bg-gray);
    border: 2px dashed var(--color-border);
    border-radius: 8px;
    padding: calc(var(--spacing-unit) * 8);
    text-align: center;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.booking-placeholder-content {
    max-width: 600px;
}

.booking-placeholder h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 3);
    color: var(--color-text);
}

.booking-placeholder p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.booking-placeholder ol {
    text-align: left;
    margin: calc(var(--spacing-unit) * 3) 0;
    padding-left: calc(var(--spacing-unit) * 5);
    color: var(--color-text-light);
    line-height: 1.8;
}

.booking-placeholder ol li {
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.booking-placeholder ul {
    text-align: left;
    margin-top: calc(var(--spacing-unit) * 2);
    padding-left: calc(var(--spacing-unit) * 5);
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

.booking-placeholder a {
    color: var(--color-primary);
    text-decoration: underline;
}

.booking-placeholder a:hover {
    opacity: 0.8;
}

.booking-note {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: calc(var(--spacing-unit) * 4);
    padding-top: calc(var(--spacing-unit) * 4);
    border-top: 1px solid var(--color-border);
}

.booking-info {
    max-width: 800px;
    margin: 0 auto;
    padding: calc(var(--spacing-unit) * 4);
    background-color: var(--color-bg-gray);
    border-radius: 8px;
}

.booking-info h3 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 3);
    color: var(--color-text);
}

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

.booking-info ul li {
    padding: calc(var(--spacing-unit) * 2) 0;
    color: var(--color-text-light);
    line-height: 1.8;
    border-bottom: 1px solid var(--color-border);
}

.booking-info ul li:last-child {
    border-bottom: none;
}

.booking-notice {
    background-color: #EFF6FF;
    border-left: 4px solid var(--color-primary);
    padding: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 4);
    border-radius: 4px;
}

.booking-notice-text {
    margin: 0;
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 500;
}

.booking-details {
    margin-top: calc(var(--spacing-unit) * 4);
}

.booking-details h4 {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
    margin-top: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.booking-details h4:first-child {
    margin-top: 0;
}

.booking-details ul {
    list-style: none;
    padding: 0;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.booking-details ul li {
    padding: calc(var(--spacing-unit) * 1.5) 0;
    color: var(--color-text-light);
    line-height: 1.8;
    padding-left: calc(var(--spacing-unit) * 3);
    position: relative;
}

.booking-details ul li:before {
    content: "・";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.booking-contact {
    margin-top: calc(var(--spacing-unit) * 4);
    padding-top: calc(var(--spacing-unit) * 4);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-light);
    text-align: center;
}

.booking-contact a {
    color: var(--color-primary);
    text-decoration: none;
}

.booking-contact a:hover {
    text-decoration: underline;
}

/* Jicoo埋め込みウィジェット用のスタイル */
.jicoo-widget {
    width: 100%;
    min-height: 720px;
    margin: 0 auto;
}

/* ===== Contact ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: calc(var(--spacing-unit) * 8);
    max-width: 900px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 4);
}

.info-item h4 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
    margin-bottom: calc(var(--spacing-unit) * 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-item p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ===== Form ===== */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 3);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 1);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
}

.required {
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: calc(var(--spacing-unit) * 1.5);
    font-family: inherit;
    font-size: 0.9375rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group textarea {
    resize: vertical;
}

.form-message {
    padding: calc(var(--spacing-unit) * 2);
    border-radius: 4px;
    font-size: 0.9375rem;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}

.form-message.error {
    display: block;
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--color-text);
    color: #9ca3af;
    padding: calc(var(--spacing-unit) * 8) 0 calc(var(--spacing-unit) * 4);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: calc(var(--spacing-unit) * 8);
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.footer-logo-img {
    max-width: 500px;
    width: 100%;
    height: auto;
    margin-bottom: calc(var(--spacing-unit) * 2);
    object-fit: contain;
    opacity: 1;
    display: block;
    /* ロゴの背景を白にして見やすくする */
    background-color: white;
    padding: calc(var(--spacing-unit) * 2);
    border-radius: 8px;
}

.footer-main p {
    font-size: 0.9375rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 4);
}

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 500;
    color: white;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 1.5);
}

.footer-column li {
    font-size: 0.875rem;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    padding-top: calc(var(--spacing-unit) * 4);
    border-top: 1px solid #374151;
    text-align: center;
    font-size: 0.875rem;
}

/* ===== Floating LINE Button ===== */
.line-float-btn {
    position: fixed;
    bottom: calc(var(--spacing-unit) * 3);
    right: calc(var(--spacing-unit) * 3);
    background-color: #06C755;
    color: white;
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 3);
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(6, 199, 85, 0.3);
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 1);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    z-index: 1000;
}

.line-float-btn:hover {
    background-color: #05B04B;
    box-shadow: 0 6px 16px rgba(6, 199, 85, 0.4);
    transform: translateY(-2px);
}

.line-float-btn svg {
    flex-shrink: 0;
}

.line-float-btn span {
    white-space: nowrap;
}

/* ===== Responsive Design ===== */
@media screen and (max-width: 768px) {
    .nav-list {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--color-bg);
        flex-direction: column;
        padding: calc(var(--spacing-unit) * 10) calc(var(--spacing-unit) * 4);
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        gap: calc(var(--spacing-unit) * 3);
    }
    
    .nav-list.show {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        padding: calc(var(--header-height) + var(--spacing-unit) * 2) 0 calc(var(--spacing-unit) * 6);
    }
    
    .hero-logo {
        max-width: 350px;
    }
    
    .hero-actions {
        flex-direction: column;
        max-width: 300px;
        margin: 0 auto;
        gap: calc(var(--spacing-unit) * 2);
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .section {
        padding: calc(var(--spacing-unit) * 8) 0;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 6);
    }
    
    .instructor-header {
        flex-direction: column;
        text-align: center;
    }
    
    .instructor-avatar {
        width: 180px;
        height: 180px;
    }
    
    .instructor-profile {
        padding: calc(var(--spacing-unit) * 3);
    }
    
    .course-list {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 6);
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .line-float-btn {
        bottom: calc(var(--spacing-unit) * 2);
        right: calc(var(--spacing-unit) * 2);
        padding: calc(var(--spacing-unit) * 2);
        font-size: 0.875rem;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        justify-content: center;
    }
    
    .line-float-btn span {
        display: none;
    }
    
    .line-float-btn svg {
        width: 32px;
        height: 32px;
    }
    
    .pricing-other {
        grid-template-columns: 1fr;
    }
    
    .business-services {
        grid-template-columns: 1fr;
    }
    
    .booking-tabs {
        flex-direction: column;
        gap: calc(var(--spacing-unit) * 2);
    }
    
    .booking-tab {
        width: 100%;
        justify-content: center;
        padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 3);
    }
    
    .booking-placeholder {
        padding: calc(var(--spacing-unit) * 4);
        min-height: 500px;
    }
    
    .booking-placeholder h3 {
        font-size: 1.25rem;
    }
    
    .booking-placeholder ol,
    .booking-placeholder ul {
        padding-left: calc(var(--spacing-unit) * 4);
    }
    
    .jicoo-widget {
        min-height: 600px;
    }
    
    .jicoo-widget {
        min-height: 600px;
    }
    
    .booking-notice {
        padding: calc(var(--spacing-unit) * 2);
    }
    
    .booking-details ul li {
        padding-left: calc(var(--spacing-unit) * 2);
        font-size: 0.9375rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 6);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 6);
    }
}

@media screen and (max-width: 480px) {
    .container {
        padding: 0 calc(var(--spacing-unit) * 2);
    }
    
    .hero-logo {
        max-width: 400px;
        margin-bottom: 0;
        margin-top: calc(var(--spacing-unit) * -3);
    }
    
    .logo-img {
        height: 90px;
    }
    
    .footer-logo-img {
        max-width: 350px;
    }
}