/* ============================================
   Sophia Academy Ver2 - Global Styles
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Shippori+Mincho:wght@400;500;700;800&family=Noto+Sans+JP:wght@400;500;700&family=Noto+Serif+JP:wght@400;700&display=swap');

/* --- Reset --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: var(--fs-base);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: var(--lh-normal);
    overflow-x: hidden;
}

img,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

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

a:hover {
    opacity: 0.75;
}

ul,
ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--sp-md);
    }
}

/* --- Section --- */
.section {
    padding: var(--sp-6xl) 0;
}

@media (max-width: 768px) {
    .section {
        padding: var(--sp-4xl) 0;
    }
}

.section--dark {
    background: var(--color-sumi);
    color: var(--color-white);
}

.section--crimson {
    background: var(--color-crimson);
    color: var(--color-white);
}

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

/* --- Gold Divider --- */
.gold-line {
    width: 60px;
    height: 2px;
    background: var(--gradient-gold);
    margin: var(--sp-lg) auto;
}

.gold-line--left {
    margin-left: 0;
}

/* --- Section Header --- */
.section-header {
    text-align: center;
    margin-bottom: var(--sp-4xl);
}

.section-header__en {
    display: block;
    font-family: var(--font-en);
    font-size: var(--fs-xl);
    font-weight: var(--fw-regular);
    letter-spacing: 0.3em;
    color: var(--color-gold);
    margin-bottom: var(--sp-sm);
    font-style: italic;
}

.section-header__title {
    font-family: var(--font-heading);
    font-size: var(--fs-3xl);
    font-weight: var(--fw-bold);
    color: var(--color-sumi);
    line-height: var(--lh-tight);
    margin-bottom: var(--sp-md);
}

.section--dark .section-header__title,
.section--crimson .section-header__title {
    color: var(--color-white);
}

.section-header__lead {
    font-size: var(--fs-md);
    color: var(--color-text-sub);
    max-width: 700px;
    margin: 0 auto;
    line-height: var(--lh-relaxed);
}

.section--dark .section-header__lead {
    color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 768px) {
    .section-header__title {
        font-size: var(--fs-2xl);
    }

    .section-header__en {
        font-size: var(--fs-lg);
    }
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-sm);
    font-family: var(--font-heading);
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    letter-spacing: 0.05em;
    border: 1px solid currentColor;
    padding: 1rem 2.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--ease-luxury);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: currentColor;
    opacity: 0;
    transition: opacity var(--ease-luxury);
}

.btn:hover::before {
    opacity: 0.08;
}

.btn:hover {
    opacity: 1;
    transform: translateY(-2px);
}

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

.btn--crimson:hover {
    background: var(--color-crimson-dark);
    border-color: var(--color-crimson-dark);
}

.btn--gold {
    background: var(--gradient-gold);
    background: var(--color-gold);
    color: var(--color-sumi);
    border-color: var(--color-gold);
    font-weight: var(--fw-bold);
}

.btn--outline-gold {
    background: transparent;
    color: var(--color-gold);
    border-color: var(--color-gold);
}

.btn--outline-gold:hover {
    background: var(--color-gold);
    color: var(--color-sumi);
}

.btn--outline-white {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
}

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

.btn--lg {
    padding: 1.2rem 3rem;
    font-size: var(--fs-md);
}

/* --- Cards --- */
.card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* --- Reveal Animation --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Floating CTA (SP only) --- */
.floating-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 900;
    display: flex;
}

.floating-cta__btn {
    flex: 1;
    padding: var(--sp-md);
    text-align: center;
    font-weight: var(--fw-bold);
    font-size: var(--fs-sm);
}

.floating-cta__btn--tel {
    background: var(--color-crimson);
    color: var(--color-white);
}

.floating-cta__btn--line {
    background: var(--color-gold);
    color: var(--color-sumi);
}

@media (min-width: 769px) {
    .floating-cta {
        display: none !important;
    }
}