/* =========================================================
   SAKURA DENTAL CLINIC — style.css
   「安心・清潔」をテーマに淡いブルーとベージュの配色
   ========================================================= */

/* ---------------------------------------------------------
   Custom Properties
   --------------------------------------------------------- */
:root {
    --sd-blue-pale:    #e8f4fd;
    --sd-blue-light:   #b8ddf5;
    --sd-blue:         #3a9bd5;
    --sd-blue-deep:    #1a5f8a;
    --sd-blue-dark:    #0f3d5c;
    --sd-beige-pale:   #faf6f0;
    --sd-beige:        #f0e8da;
    --sd-beige-dark:   #d4c4b0;
    --sd-text:         #333333;
    --sd-text-mid:     #666666;
    --sd-text-light:   #999999;
    --sd-white:        #ffffff;
    --sd-border:       #e4eef5;
    --sd-shadow-sm:    0 2px 12px rgba(58, 155, 213, 0.10);
    --sd-shadow-md:    0 8px 32px rgba(58, 155, 213, 0.14);
    --sd-shadow-lg:    0 16px 48px rgba(58, 155, 213, 0.18);
    --sd-radius-sm:    8px;
    --sd-radius-md:    16px;
    --sd-radius-lg:    24px;
    --sd-radius-full:  9999px;

    --sd-font-ja:      'Noto Sans JP', sans-serif;
    --sd-font-en:      'Lato', sans-serif;

    --sd-ease:         cubic-bezier(0.16, 1, 0.3, 1);
    --sd-dur:          0.7s;

    --sd-max-w:        1200px;
    --sd-gap:          clamp(60px, 8vw, 120px);
}

/* ---------------------------------------------------------
   Reset / Base (scoped to work-3)
   --------------------------------------------------------- */
.work-3-body {
    font-family: var(--sd-font-ja);
    font-weight: 400;
    color: var(--sd-text);
    background-color: var(--sd-white);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    line-height: 1.7;
}

.work-3-body * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.work-3-body img {
    display: block;
    max-width: 100%;
    height: auto;
}

.work-3-body a {
    color: inherit;
    text-decoration: none;
}

.work-3-body ul,
.work-3-body ol {
    list-style: none;
}

.sd-main {
    overflow: hidden;
}

/* ---------------------------------------------------------
   Fade-up animation
   --------------------------------------------------------- */
.sd-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--sd-dur) var(--sd-ease),
                transform var(--sd-dur) var(--sd-ease);
    will-change: transform, opacity;
}

.sd-fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------------------------------------------------------
   Common: Section header
   --------------------------------------------------------- */
.sd-section-label {
    display: inline-block;
    font-family: var(--sd-font-en);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--sd-blue);
    margin-bottom: 12px;
}

.sd-section-title {
    font-family: var(--sd-font-ja);
    font-weight: 700;
    font-size: clamp(24px, 3vw, 36px);
    letter-spacing: 0.05em;
    color: var(--sd-blue-dark);
    margin-bottom: 14px;
    line-height: 1.3;
}

.sd-section-desc {
    font-size: clamp(14px, 1.2vw, 16px);
    color: var(--sd-text-mid);
    line-height: 1.8;
    letter-spacing: 0.03em;
}

.sd-section-head {
    text-align: center;
    margin-bottom: clamp(40px, 5vw, 64px);
}

.sd-section-head--left {
    text-align: left;
}

/* ---------------------------------------------------------
   Common: Buttons
   --------------------------------------------------------- */
.sd-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--sd-font-ja);
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.05em;
    padding: 14px 28px;
    border-radius: var(--sd-radius-full);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

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

.sd-btn--primary {
    background: var(--sd-blue);
    color: var(--sd-white);
    box-shadow: 0 4px 20px rgba(58, 155, 213, 0.4);
}

.sd-btn--primary:hover {
    background: var(--sd-blue-deep);
    box-shadow: 0 8px 28px rgba(58, 155, 213, 0.5);
}

.sd-btn--secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--sd-white);
    border: 2px solid rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(4px);
}

.sd-btn--secondary:hover {
    background: rgba(255, 255, 255, 0.35);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* ---------------------------------------------------------
   HEADER
   --------------------------------------------------------- */
.sd-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 var(--sd-border);
    transition: box-shadow 0.3s ease;
}

.sd-header.is-scrolled {
    box-shadow: 0 2px 20px rgba(58, 155, 213, 0.12);
}

.sd-header__inner {
    max-width: var(--sd-max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 40px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 20px;
}

/* Logo */
.sd-header__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--sd-blue-deep);
    flex-shrink: 0;
}

.sd-header__logo-icon {
    color: var(--sd-blue);
    flex-shrink: 0;
}

.sd-header__logo-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sd-header__logo-name {
    font-family: var(--sd-font-en);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--sd-blue-deep);
    line-height: 1;
}

.sd-header__logo-sub {
    font-size: 10px;
    font-weight: 400;
    color: var(--sd-text-mid);
    letter-spacing: 0.08em;
    line-height: 1;
}

/* Nav */
.sd-nav__list {
    display: flex;
    align-items: center;
    gap: clamp(16px, 2.5vw, 36px);
}

.sd-nav__item a {
    font-size: 13px;
    font-weight: 500;
    color: var(--sd-text-mid);
    letter-spacing: 0.05em;
    position: relative;
    transition: color 0.3s ease;
}

.sd-nav__item a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--sd-blue);
    border-radius: 2px;
    transition: width 0.35s var(--sd-ease);
}

.sd-nav__item a:hover {
    color: var(--sd-blue);
}

.sd-nav__item a:hover::after {
    width: 100%;
}

.sd-nav__item--cta a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--sd-blue);
    color: var(--sd-white);
    padding: 10px 20px;
    border-radius: var(--sd-radius-full);
    font-weight: 700;
    font-size: 13px;
    box-shadow: var(--sd-shadow-sm);
    transition: background 0.3s ease, box-shadow 0.3s ease, transform 0.25s ease;
}

.sd-nav__item--cta a::after {
    display: none;
}

.sd-nav__item--cta a:hover {
    background: var(--sd-blue-deep);
    box-shadow: var(--sd-shadow-md);
    transform: translateY(-1px);
    color: var(--sd-white);
}

/* Hamburger */
.sd-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    width: 42px;
    height: 42px;
}

.sd-hamburger__line {
    display: block;
    width: 24px;
    height: 1.5px;
    background: var(--sd-blue-deep);
    border-radius: 2px;
    transition: transform 0.35s var(--sd-ease), opacity 0.3s ease;
}

.sd-hamburger.is-active .sd-hamburger__line:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

.sd-hamburger.is-active .sd-hamburger__line:nth-child(2) {
    opacity: 0;
}

.sd-hamburger.is-active .sd-hamburger__line:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

/* ---------------------------------------------------------
   01. HERO
   --------------------------------------------------------- */
.sd-hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--sd-blue-dark);
}

.sd-hero__bg {
    position: absolute;
    inset: 0;
}

.sd-hero__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
    opacity: 0;
    transition: opacity 1.2s ease;
}

.sd-hero__img.is-loaded {
    opacity: 0.85;
}

.sd-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        120deg,
        rgba(15, 61, 92, 0.85) 0%,
        rgba(26, 95, 138, 0.7) 50%,
        rgba(58, 155, 213, 0.4) 100%
    );
}

.sd-hero__content {
    position: relative;
    z-index: 2;
    padding: clamp(100px, 15vw, 160px) clamp(20px, 6vw, 80px) clamp(60px, 8vw, 100px);
    max-width: var(--sd-max-w);
    margin: 0 auto;
    width: 100%;
}

.sd-hero__eyecatch {
    display: inline-block;
    font-family: var(--sd-font-ja);
    font-size: clamp(11px, 1.2vw, 13px);
    font-weight: 400;
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 6px 16px;
    border-radius: var(--sd-radius-full);
    margin-bottom: 24px;
    backdrop-filter: blur(4px);
}

.sd-hero__title {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.sd-hero__title-ja {
    font-family: var(--sd-font-ja);
    font-weight: 700;
    font-size: clamp(30px, 5vw, 58px);
    letter-spacing: 0.1em;
    color: #fff;
    line-height: 1.2;
}

.sd-hero__title-en {
    font-family: var(--sd-font-en);
    font-weight: 300;
    font-size: clamp(12px, 1.5vw, 16px);
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
}

.sd-hero__lead {
    font-size: clamp(14px, 1.5vw, 17px);
    font-weight: 400;
    line-height: 2;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 0.06em;
    margin-bottom: 40px;
}

.sd-hero__btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero badges */
.sd-hero__badges {
    position: absolute;
    bottom: clamp(30px, 5vw, 60px);
    right: clamp(20px, 5vw, 80px);
    display: flex;
    flex-direction: column;
    gap: 16px;
    z-index: 2;
}

.sd-hero__badge {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--sd-radius-md);
    padding: 14px 20px;
    text-align: center;
    min-width: 96px;
}

.sd-hero__badge-num {
    display: block;
    font-family: var(--sd-font-en);
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 700;
    color: #fff;
    line-height: 1;
    margin-bottom: 6px;
}

.sd-hero__badge-num small {
    font-size: 0.55em;
    font-weight: 400;
}

.sd-hero__badge-label {
    display: block;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.06em;
}

/* ---------------------------------------------------------
   02. FEATURES
   --------------------------------------------------------- */
.sd-features {
    background: var(--sd-blue-pale);
    padding: var(--sd-gap) 0;
    position: relative;
    overflow: hidden;
}

.sd-features::before {
    content: '';
    position: absolute;
    top: -80px;
    left: -80px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    pointer-events: none;
}

.sd-features__inner {
    max-width: var(--sd-max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 60px);
}

.sd-features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(16px, 3vw, 32px);
}

.sd-feature-card {
    background: var(--sd-white);
    border-radius: var(--sd-radius-lg);
    padding: clamp(32px, 4vw, 48px) clamp(24px, 3vw, 36px);
    box-shadow: var(--sd-shadow-sm);
    text-align: center;
    transition: transform 0.35s var(--sd-ease), box-shadow 0.35s ease;
}

.sd-feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--sd-shadow-lg);
}

.sd-feature-card__icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--sd-blue-pale);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--sd-blue);
    transition: background 0.3s ease;
}

.sd-feature-card:hover .sd-feature-card__icon {
    background: var(--sd-blue-light);
}

.sd-feature-card__title {
    font-weight: 700;
    font-size: clamp(16px, 1.8vw, 20px);
    color: var(--sd-blue-dark);
    letter-spacing: 0.06em;
    margin-bottom: 14px;
}

.sd-feature-card__text {
    font-size: clamp(13px, 1.1vw, 14px);
    line-height: 1.9;
    color: var(--sd-text-mid);
    letter-spacing: 0.04em;
}

/* ---------------------------------------------------------
   03. SERVICES
   --------------------------------------------------------- */
.sd-services {
    background: var(--sd-white);
    padding: var(--sd-gap) 0;
}

.sd-services__inner {
    max-width: var(--sd-max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 60px);
}

.sd-services__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(16px, 3vw, 28px);
}

.sd-service-card {
    background: var(--sd-white);
    border-radius: var(--sd-radius-md);
    overflow: hidden;
    border: 1px solid var(--sd-border);
    box-shadow: var(--sd-shadow-sm);
    transition: transform 0.35s var(--sd-ease), box-shadow 0.35s ease;
}

.sd-service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--sd-shadow-md);
}

.sd-service-card__img {
    overflow: hidden;
    height: clamp(160px, 20vw, 220px);
}

.sd-service-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--sd-ease);
}

.sd-service-card:hover .sd-service-card__img img {
    transform: scale(1.06);
}

.sd-service-card__body {
    padding: clamp(20px, 3vw, 28px);
}

.sd-service-card__title {
    font-weight: 700;
    font-size: clamp(15px, 1.6vw, 18px);
    color: var(--sd-blue-dark);
    letter-spacing: 0.05em;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sd-service-card__title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--sd-blue);
    border-radius: 2px;
    flex-shrink: 0;
}

.sd-service-card__text {
    font-size: clamp(13px, 1.1vw, 14px);
    line-height: 1.85;
    color: var(--sd-text-mid);
    margin-bottom: 16px;
}

.sd-service-card__link {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--sd-blue);
    letter-spacing: 0.04em;
    transition: gap 0.3s ease, color 0.3s ease;
    gap: 4px;
}

.sd-service-card__link:hover {
    color: var(--sd-blue-deep);
    gap: 10px;
}

/* ---------------------------------------------------------
   04. STAFF
   --------------------------------------------------------- */
.sd-staff {
    background: var(--sd-beige-pale);
    padding: var(--sd-gap) 0;
}

.sd-staff__inner {
    max-width: var(--sd-max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 60px);
}

.sd-staff__body {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: clamp(40px, 6vw, 80px);
    align-items: start;
    margin-top: clamp(30px, 4vw, 50px);
}

.sd-staff__photo {
    position: relative;
}

.sd-staff__photo img {
    width: 100%;
    height: clamp(360px, 40vw, 480px);
    object-fit: cover;
    object-position: top;
    border-radius: var(--sd-radius-lg);
    box-shadow: var(--sd-shadow-md);
}

.sd-staff__photo-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px 20px 20px;
    background: linear-gradient(to top, rgba(15, 61, 92, 0.85), transparent);
    border-radius: 0 0 var(--sd-radius-lg) var(--sd-radius-lg);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sd-staff__name-ja {
    font-weight: 700;
    font-size: 18px;
    color: #fff;
    letter-spacing: 0.1em;
}

.sd-staff__name-role {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.08em;
}

.sd-staff__greeting {
    font-weight: 700;
    font-size: clamp(16px, 1.8vw, 20px);
    color: var(--sd-blue-dark);
    letter-spacing: 0.05em;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--sd-blue-pale);
}

.sd-staff__text {
    font-size: clamp(13px, 1.2vw, 15px);
    line-height: 2;
    color: var(--sd-text-mid);
    letter-spacing: 0.04em;
    margin-bottom: 1.4em;
}

.sd-staff__profile {
    background: var(--sd-white);
    border-radius: var(--sd-radius-md);
    padding: clamp(20px, 3vw, 28px);
    box-shadow: var(--sd-shadow-sm);
    margin-top: 24px;
}

.sd-staff__profile dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 10px 20px;
}

.sd-staff__profile dt {
    font-weight: 700;
    font-size: 13px;
    color: var(--sd-blue);
    letter-spacing: 0.06em;
    white-space: nowrap;
    padding-right: 16px;
    position: relative;
}

.sd-staff__profile dt::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 70%;
    background: var(--sd-border);
}

.sd-staff__profile dd {
    font-size: 13px;
    color: var(--sd-text-mid);
    line-height: 1.7;
}

/* ---------------------------------------------------------
   05. FAQ
   --------------------------------------------------------- */
.sd-faq {
    background: var(--sd-white);
    padding: var(--sd-gap) 0;
}

.sd-faq__inner {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 40px);
}

.sd-faq__list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sd-faq__item {
    background: var(--sd-white);
    border: 1px solid var(--sd-border);
    border-radius: var(--sd-radius-md);
    overflow: hidden;
    box-shadow: var(--sd-shadow-sm);
    transition: box-shadow 0.3s ease;
}

.sd-faq__item:has(.sd-faq__question[aria-expanded="true"]) {
    box-shadow: var(--sd-shadow-md);
    border-color: var(--sd-blue-light);
}

.sd-faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: clamp(18px, 2.5vw, 24px) clamp(16px, 3vw, 28px);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background 0.25s ease;
}

.sd-faq__question:hover {
    background: var(--sd-blue-pale);
}

.sd-faq__q-icon {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--sd-blue);
    color: var(--sd-white);
    font-family: var(--sd-font-en);
    font-size: 15px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sd-faq__q-text {
    flex: 1;
    font-size: clamp(14px, 1.4vw, 16px);
    font-weight: 700;
    color: var(--sd-blue-dark);
    letter-spacing: 0.04em;
    line-height: 1.5;
}

.sd-faq__toggle {
    color: var(--sd-blue);
    flex-shrink: 0;
    transition: transform 0.4s var(--sd-ease);
}

.sd-faq__question[aria-expanded="true"] .sd-faq__toggle {
    transform: rotate(180deg);
    color: var(--sd-blue-deep);
}

/* Answer */
.sd-faq__answer {
    overflow: hidden;
}

.sd-faq__answer[hidden] {
    display: none;
}

/* JS uses max-height animation; remove hidden and set max-height */
.sd-faq__answer.is-open {
    display: block;
}

.sd-faq__answer-inner {
    display: flex;
    gap: 16px;
    padding: clamp(16px, 2.5vw, 20px) clamp(16px, 3vw, 28px) clamp(20px, 3vw, 28px);
    border-top: 1px solid var(--sd-border);
    background: var(--sd-blue-pale);
}

.sd-faq__a-icon {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--sd-beige);
    color: var(--sd-blue-deep);
    font-family: var(--sd-font-en);
    font-size: 15px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sd-faq__answer-inner p {
    font-size: clamp(13px, 1.2vw, 15px);
    line-height: 1.9;
    color: var(--sd-text-mid);
    letter-spacing: 0.04em;
}

/* ---------------------------------------------------------
   06. RESERVATION CTA
   --------------------------------------------------------- */
.sd-reservation {
    background: linear-gradient(135deg, var(--sd-blue-dark) 0%, var(--sd-blue-deep) 50%, var(--sd-blue) 100%);
    padding: var(--sd-gap) 0;
    position: relative;
    overflow: hidden;
}

.sd-reservation::before,
.sd-reservation::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.sd-reservation::before {
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.04);
    top: -200px;
    right: -100px;
}

.sd-reservation::after {
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.04);
    bottom: -100px;
    left: -50px;
}

.sd-reservation__inner {
    max-width: var(--sd-max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 60px);
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: clamp(40px, 6vw, 80px);
    align-items: center;
    position: relative;
    z-index: 1;
}

.sd-reservation .sd-section-label {
    color: rgba(255, 255, 255, 0.6);
}

.sd-reservation__title {
    font-weight: 700;
    font-size: clamp(24px, 3.5vw, 40px);
    letter-spacing: 0.06em;
    line-height: 1.5;
    color: #fff;
    margin: 12px 0 20px;
}

.sd-reservation__body {
    font-size: clamp(13px, 1.2vw, 15px);
    line-height: 2;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.04em;
}

.sd-reservation__actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sd-reservation__btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: clamp(18px, 2.5vw, 22px) clamp(20px, 3vw, 28px);
    border-radius: var(--sd-radius-md);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(8px);
    color: #fff;
    transition: background 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
}

.sd-reservation__btn:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.sd-reservation__btn--web {
    background: rgba(255, 255, 255, 0.2);
}

.sd-reservation__btn svg {
    flex-shrink: 0;
    opacity: 0.8;
}

.sd-reservation__btn span {
    display: block;
    font-weight: 700;
    font-size: clamp(15px, 1.5vw, 18px);
    letter-spacing: 0.05em;
}

.sd-reservation__btn small {
    display: block;
    font-size: 11px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.08em;
    margin-top: 3px;
}

/* Hours table */
.sd-reservation__hours {
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--sd-radius-md);
    padding: clamp(16px, 2.5vw, 20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.sd-hours-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.85);
}

.sd-hours-table th,
.sd-hours-table td {
    padding: 8px 6px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sd-hours-table thead th {
    font-weight: 700;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.6);
    font-size: 11px;
}

.sd-hours-table td:first-child {
    text-align: left;
    padding-left: 0;
    font-size: 11px;
    white-space: nowrap;
}

.sd-hours-table td small {
    display: block;
    font-size: 9px;
    color: rgba(255, 255, 255, 0.5);
}

.sd-hours-table td.ok { color: #80dfb4; font-weight: 700; }
.sd-hours-table td.ng { color: rgba(255, 255, 255, 0.25); }

.sd-reservation__note {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.45);
    margin-top: 10px;
    letter-spacing: 0.05em;
}

/* ---------------------------------------------------------
   FOOTER
   --------------------------------------------------------- */
.sd-footer {
    background: var(--sd-blue-dark);
}

.sd-footer__top {
    padding: clamp(50px, 6vw, 80px) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sd-footer__inner {
    max-width: var(--sd-max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 60px);
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: clamp(30px, 5vw, 60px);
}

.sd-footer__clinic-name {
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 0.08em;
    color: #fff;
    margin-bottom: 4px;
}

.sd-footer__clinic-en {
    font-family: var(--sd-font-en);
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 16px;
}

.sd-footer__clinic-desc {
    font-size: 13px;
    font-weight: 300;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.04em;
}

.sd-footer__info-title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sd-blue-light);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sd-footer__dl dt {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 12px;
    margin-bottom: 4px;
}

.sd-footer__dl dt:first-child { margin-top: 0; }

.sd-footer__dl dd {
    font-size: 13px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.7;
    letter-spacing: 0.04em;
}

.sd-footer__nav-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.sd-footer__nav-list a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.04em;
    transition: color 0.3s ease;
}

.sd-footer__nav-list a:hover {
    color: #fff;
}

.sd-footer__back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.08em;
    transition: color 0.3s ease;
}

.sd-footer__back:hover {
    color: rgba(255, 255, 255, 0.7);
}

.sd-footer__bottom {
    padding: 20px clamp(16px, 5vw, 60px);
    max-width: var(--sd-max-w);
    margin: 0 auto;
}

.sd-footer__bottom p {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.25);
    letter-spacing: 0.08em;
}

/* ---------------------------------------------------------
   RESPONSIVE — Tablet
   --------------------------------------------------------- */
@media (max-width: 1024px) {
    .sd-services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .sd-reservation__inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .sd-staff__body {
        grid-template-columns: 260px 1fr;
    }
}

@media (max-width: 768px) {
    .sd-hamburger { display: flex; }
    .sd-nav {
        display: none;
        position: fixed;
        top: 68px;
        left: 0;
        width: 100%;
        background: var(--sd-white);
        padding: 16px clamp(16px, 5vw, 30px) 30px;
        border-top: 1px solid var(--sd-border);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    }
    .sd-nav.is-open { display: block; }
    .sd-nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }
    .sd-nav__item {
        width: 100%;
        border-bottom: 1px solid var(--sd-border);
    }
    .sd-nav__item a {
        display: block;
        padding: 16px 0;
        font-size: 15px;
    }
    .sd-nav__item--cta {
        border-bottom: none;
        margin-top: 16px;
    }
    .sd-nav__item--cta a {
        display: inline-flex;
        padding: 12px 24px;
    }

    .sd-features__grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }
    .sd-services__grid {
        grid-template-columns: 1fr;
    }
    .sd-staff__body {
        grid-template-columns: 1fr;
    }
    .sd-staff__photo img {
        height: clamp(280px, 70vw, 360px);
    }
    .sd-footer__inner {
        grid-template-columns: 1fr;
    }
    .sd-hero__badges {
        display: none;
    }
    .sd-hero__btns {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .sd-staff__profile dl {
        grid-template-columns: 1fr;
    }
    .sd-staff__profile dt::after {
        display: none;
    }
    .sd-staff__profile dt {
        margin-top: 10px;
        margin-bottom: 2px;
    }
}