/* ================================================
   SKGK PAGE — Full-screen slide style (skgk.html)
================================================ */

html {
    scroll-snap-type: y mandatory;
    scroll-behavior: smooth;
}

body {
    background: #f7f7f7;
}

body::-webkit-scrollbar { width: 6px; }
body::-webkit-scrollbar-track { background: #f7f7f7; }
body::-webkit-scrollbar-thumb { background: var(--accent-color); border-radius: 3px; }

/* --- Shared Slide --- */
.skgk-slide {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    text-align: center;
    padding: 100px 20px;
}

.skgk-slide .inner { max-width: 800px; width: 100%; z-index: 2; }

/* --- Progress Dots --- */
.skgk-progress {
    position: fixed;
    top: 50%; right: 24px;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.skgk-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    border: 2px solid rgba(0,0,0,0.2);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.skgk-dot.active { background: var(--accent-color); border-color: var(--accent-color); transform: scale(1.4); }

/* SLIDE 1 — INTRO */
.slide-intro { background: var(--bg-dark); }
.slide-intro .inner { max-width: 1000px; }
.slide-intro::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 30%, rgba(211,47,47,0.08) 0%, transparent 60%); pointer-events: none; }
.slide-intro .logo-img { width: 280px; height: 280px; object-fit: contain; margin-bottom: 2.5rem; opacity: 0; animation: fadeSlideUp 1s ease 0.3s forwards; }
.slide-intro h1 { font-size: clamp(2rem,5vw,3.5rem); color: var(--secondary-color); margin-bottom: 0.8rem; letter-spacing: 3px; line-height: 1.15; opacity: 0; animation: fadeSlideUp 1s ease 0.5s forwards; }
.slide-intro .tagline { font-size: 0.8rem; color: var(--accent-color); font-weight: 700; letter-spacing: 4px; text-transform: uppercase; margin-bottom: 3rem; opacity: 0; animation: fadeSlideUp 1s ease 0.7s forwards; }
.slide-intro .desc { color: rgba(255,255,255,0.5); font-size: 1.05rem; line-height: 1.9; max-width: 850px; margin: 0 auto; opacity: 0; animation: fadeSlideUp 1s ease 0.9s forwards; }
.slide-intro .desc p+p { margin-top: 1rem; }

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* SLIDE 2 — CHIEF INSTRUCTOR */
.slide-chief { background: #fff; }
.slide-chief .inner { max-width: 1400px; }
.chief-wrapper { display: flex; flex-direction: column; align-items: flex-start; text-align: left; max-width: 1400px; width: 100%; }
.chief-header { margin-bottom: 2.2rem; }
.chief-columns { display: grid; grid-template-columns: auto 1fr; gap: 4rem; align-items: flex-start; width: 100%; }
.chief-left-col { display: flex; flex-direction: column; align-items: flex-start; }
.chief-credentials { margin-top: 1.5rem; text-align: left; color: rgba(0,0,0,0.7); font-size: 1.05rem; line-height: 1.6; }
.chief-role-title { font-weight: 700; color: var(--accent-color); text-transform: uppercase; font-size: 1.25rem; letter-spacing: 2px; }
.founder-label { font-size: 1.15rem; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; color: var(--accent-color); margin-bottom: 0.8rem; display: inline-block; border-bottom: 2px solid var(--accent-color); padding-bottom: 6px; white-space: nowrap; }
.slide-chief h2 { font-size: clamp(1.8rem,4vw,3rem); color: var(--primary-color); letter-spacing: 2px; line-height: 1.15; margin: 0.4rem 0 0; }
.chief-photo { width: 280px; height: 370px; border-radius: 12px; background: #f0f0f0; border: 1px solid rgba(0,0,0,0.05); margin: 0; display: flex; align-items: center; justify-content: center; overflow: hidden; box-shadow: 0 15px 45px rgba(0,0,0,0.1); flex-shrink: 0; }
.chief-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center center; }
.chief-photo span { color: #bbb; font-size: 0.85rem; }
.chief-bio { color: rgba(0,0,0,0.5); font-size: 1rem; line-height: 1.85; border-left: 2px solid rgba(0,0,0,0.08); padding-left: 2.5rem; padding-right: 15%; max-width: 850px; padding-top: 0.25rem; }
.chief-bio p+p { margin-top: 1.5rem; }

/* SLIDE 3 — SENIOR INSTRUCTORS */
.slide-seniors { background: #f5f5f5; }
.slide-seniors .label { font-size: 0.75rem; font-weight: 700; letter-spacing: 5px; text-transform: uppercase; color: rgba(0,0,0,0.3); margin-bottom: 3.5rem; }
.seniors-row { display: flex; justify-content: center; gap: 6rem; flex-wrap: wrap; }
.senior-item { text-align: center; }
.senior-photo { width: 150px; height: 150px; border-radius: 50%; background: #e8e8e8; border: 2px solid #ddd; margin: 0 auto 1.5rem; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.senior-photo img { width: 100%; height: 100%; object-fit: cover; }
.senior-photo span { color: #bbb; font-size: 0.8rem; }
.senior-item h3 { font-size: 1.25rem; color: var(--primary-color); margin-bottom: 0.35rem; letter-spacing: 2px; }
.senior-item .role { font-size: 0.7rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: rgba(0,0,0,0.35); margin: 0; }

.honbu-divider { width: 100%; display: flex; align-items: center; gap: 1.5rem; margin: 3rem 0 2.5rem; }
.honbu-divider::before, .honbu-divider::after { content: ''; flex: 1; height: 1px; background: rgba(0,0,0,0.1); }
.honbu-divider-label { font-size: 0.7rem; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; color: var(--accent-color); white-space: nowrap; }
.honbu-row { display: flex; justify-content: center; }
.split-divider { width: 1px; background: rgba(0,0,0,0.12); margin: 0 1rem; align-self: stretch; flex-shrink: 0; }

.seniors-split { display: flex; align-items: flex-start; justify-content: space-between; width: 100%; padding: 0 5%; }
.seniors-col { display: flex; flex-direction: column; align-items: center; gap: 0; padding: 0 1rem; }
.seniors-col-label { font-size: 1.15rem; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; color: var(--accent-color); border-bottom: 2px solid var(--accent-color); padding-bottom: 6px; white-space: nowrap; margin-bottom: 2.5rem; align-self: center; }
.seniors-cards-row { display: flex; gap: 4.5rem; flex-wrap: nowrap; justify-content: center; }
.slide-seniors .split-divider { width: 1px; background: rgba(0,0,0,0.12); align-self: stretch; flex-shrink: 0; margin: 0 1rem; }
.instructor-title { color: var(--accent-color); }
.slide-seniors .inner { max-width: 1250px; }

/* SLIDE 4 & MORE */
.slide-kuro-obi { background: #fff; }
.slide-assistants { background: #f5f5f5; }
.slide-kuro-obi .label, .slide-assistants .label { font-size: 1.15rem; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; color: var(--accent-color); border-bottom: 2px solid var(--accent-color); padding-bottom: 6px; display: inline-block; margin-bottom: 3rem; }
.slide-assistants .inner { max-width: 1200px; }
.slide-assistants .seniors-row { gap: 5.5rem; margin-top: 1.5rem; }
.slide-assistants .senior-item { flex: 1; min-width: 0; }
.slide-assistants .senior-photo.rect-card { width: 210px; height: 280px; }
.slide-assistants h4 { font-size: 1.1rem; color: var(--primary-color); margin-bottom: 0.3rem; letter-spacing: 1px; }
.slide-assistants .role { font-size: 0.75rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: rgba(0,0,0,0.35); margin: 0; }

.asst-grid { display: grid; grid-template-columns: repeat(4, 150px); justify-content: center; gap: 4rem 5rem; max-width: 1200px; margin: 2rem auto 0; padding: 0 40px; }
.asst-item { text-align: center; width: 150px; }
.asst-photo { width: 140px; height: 140px; border-radius: 50%; background: #efefef; border: 2px solid #eaeaea; margin: 0 auto 1rem; display: flex; align-items: center; justify-content: center; overflow: hidden; box-shadow: 0 8px 20px rgba(0,0,0,0.06); }
.asst-photo img { width: 100%; height: 100%; object-fit: cover; }
.asst-photo span { color: #ccc; font-size: 0.55rem; }
.asst-item h4 { font-size: 0.95rem; color: var(--primary-color); margin-bottom: 0.3rem; letter-spacing: 1.5px; }
.asst-item .role { font-size: 0.55rem; font-weight: 600; color: rgba(0,0,0,0.3); letter-spacing: 1px; text-transform: uppercase; margin: 0; }

.senior-photo.rect-card { border-radius: 12px; width: 250px; height: 330px; box-shadow: 0 12px 30px rgba(0,0,0,0.08); border: 1px solid #eaeaea; }
.senior-photo.rect-card.asst { width: 160px; height: 210px; }

footer { scroll-snap-align: end; }

/* --- Responsive --- */
@media (max-width: 968px) {
    .chief-wrapper { align-items: center; text-align: center; }
    .chief-header { text-align: center; }
    .chief-columns { grid-template-columns: 1fr; gap: 2.5rem; justify-items: center; }
    .chief-bio { border-left: none; padding-left: 0; text-align: center; max-width: 600px; }
}

@media (max-width: 820px) {
    .seniors-row { flex-wrap: wrap; }
    .split-divider { display: none; }
    .top-label-row { flex-direction: column; align-items: center; gap: 1rem; }
    .top-label-left, .top-label-right { margin: 0; }
}

@media (max-width: 768px) {
    html { scroll-snap-type: none; }
    .skgk-progress { display: none; }
    .skgk-slide { min-height: 100vh; height: auto; align-items: flex-start; padding-top: 120px; padding-bottom: 60px; }
    .skgk-slide .inner { max-width: 100%; }
    .seniors-row { gap: 3rem; }
    .seniors-split { flex-direction: column; justify-content: center; align-items: center; gap: 2.5rem; padding: 0; }
    .seniors-cards-row { flex-wrap: wrap; gap: 2rem; }
    .chief-left-col { align-items: center; }
    .chief-credentials { text-align: center; font-size: 0.95rem; }
    .chief-bio { padding-right: 0; }
    .senior-photo { width: 120px; height: 120px; }
    .senior-photo.rect-card { width: 180px; height: 240px; }
    .senior-photo.rect-card.asst { width: 140px; height: 190px; }
    .asst-grid { grid-template-columns: repeat(3, 120px); gap: 2.5rem 2.5rem; }
    .asst-photo { width: 110px; height: 110px; }
    .asst-item { width: 120px; }
    .slide-assistants .seniors-row { flex-wrap: wrap; gap: 2rem; justify-content: center; }
    .slide-assistants .senior-item { flex: 0 1 220px; }
    .slide-assistants .senior-photo.rect-card { width: 180px; height: 240px; }
}

@media (max-width: 480px) {
    .slide-intro .logo-img { width: 200px; height: 200px; }
    .slide-intro .tagline { letter-spacing: 2px; }
    .asst-grid { grid-template-columns: repeat(2, 110px); gap: 2rem 2rem; }
    .asst-photo { width: 90px; height: 90px; }
    .asst-item { width: 100px; }
    .seniors-row { gap: 2.5rem; }
    .seniors-cards-row { gap: 1.5rem; }
    .slide-assistants .senior-item { flex-basis: 100%; }
    .slide-assistants .senior-photo.rect-card { width: 160px; height: 220px; }
}