/* =============================================
   Valentine's Campaign 2026
   Aesthetic: Warm & Approachable — Banner-Matched
   ============================================= */

:root {
    --color-bg: #FBF5EE;
    --color-bg-alt: #FFF9F4;
    --color-card: #FFFFFF;
    --color-primary: #C83C6B;
    --color-primary-deep: #A82D58;
    --color-primary-soft: #E8A0B5;
    --color-primary-pale: #F9E8ED;
    --color-accent: #F0D44C;
    --color-accent-deep: #D9BE3A;
    --color-text: #3D2E34;
    --color-text-medium: #6B555E;
    --color-text-light: #9A8890;
    --color-border: #EDE3DA;
    --color-hero-bg: #3D2E34;
    --font-display: 'Outfit', sans-serif;
    --font-body: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Hero Section ── */
.hero {
    background: var(--color-hero-bg);
    padding: 48px 24px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 500px 350px at 15% 60%, rgba(200, 60, 107, 0.12) 0%, transparent 70%),
        radial-gradient(ellipse 400px 300px at 85% 30%, rgba(240, 212, 76, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
}

.hero-banner {
    margin-bottom: 28px;
    opacity: 0;
    animation: fadeScale 0.7s ease forwards;
}

.banner-image {
    width: 100%;
    max-width: 880px;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

/* Countdown */
.countdown {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    opacity: 0;
    animation: fadeSlideUp 0.6s ease 0.4s forwards;
}

.countdown-item {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    padding: 14px 18px 10px;
    min-width: 72px;
}

.countdown-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #fff;
    line-height: 1;
}

.countdown-label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-primary-soft);
    margin-top: 6px;
}

.countdown-sep {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.25);
    padding-bottom: 10px;
}

/* ── Benefits Section ── */
.benefits {
    background: var(--color-card);
    padding: 48px 24px;
    border-bottom: 1px solid var(--color-border);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.benefit-item {
    text-align: center;
    padding: 24px 16px;
    border-radius: var(--radius-md);
    background: var(--color-primary-pale);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(200, 60, 107, 0.1);
}

.benefit-icon {
    margin-bottom: 12px;
    color: var(--color-primary);
}

.benefit-item h3 {
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--color-text);
}

.benefit-item p {
    font-size: 0.82rem;
    color: var(--color-text-medium);
    font-weight: 400;
}

/* ── Course Sections ── */
.courses-section {
    padding: 64px 24px;
    background: var(--color-bg);
}

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

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-number {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    background: var(--color-primary-pale);
    border-radius: 20px;
    padding: 5px 16px;
    margin-bottom: 14px;
}

.category-title {
    font-family: var(--font-body);
    font-size: clamp(1.4rem, 3vw, 1.75rem);
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.02em;
    margin-bottom: 8px;
    position: relative;
    display: inline-block;
}

.category-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background: var(--color-accent);
    border-radius: 2px;
    margin: 10px auto 0;
}

.section-desc {
    font-size: 0.88rem;
    font-weight: 400;
    color: var(--color-text-light);
}

/* Course Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

/* Course Card */
.course-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                box-shadow 0.35s ease,
                border-color 0.35s ease;
    opacity: 0;
    transform: translateY(20px);
}

.course-card.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                box-shadow 0.35s ease,
                border-color 0.35s ease;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 32px rgba(61, 46, 52, 0.1);
    border-color: var(--color-primary-soft);
}

.courses-section.section-alt .course-card {
    background: var(--color-card);
}

.course-content {
    padding: 24px 22px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.course-badge {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--color-primary);
    background: var(--color-primary-pale);
    padding: 4px 12px;
    border-radius: 16px;
    margin-bottom: 14px;
    align-self: flex-start;
}

.course-title {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: 10px;
    color: var(--color-text);
}

.course-description {
    font-size: 0.84rem;
    font-weight: 400;
    line-height: 1.8;
    color: var(--color-text-medium);
    margin-bottom: 20px;
    flex-grow: 1;
}

.course-footer {
    margin-top: auto;
}

/* CTA Button */
.cta-button {
    display: block;
    width: 100%;
    background: var(--color-primary);
    color: #fff;
    text-decoration: none;
    padding: 13px 24px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.88rem;
    letter-spacing: 0.04em;
    text-align: center;
    transition: background-color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
}

.cta-button:hover {
    background: var(--color-primary-deep);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(200, 60, 107, 0.3);
}

.cta-button.cta-line {
    background: #06C755;
}

.cta-button.cta-line:hover {
    background: #05a848;
    box-shadow: 0 6px 20px rgba(6, 199, 85, 0.3);
}

/* ── Final CTA Section ── */
.final-cta {
    background: var(--color-hero-bg);
    color: #fff;
    text-align: center;
    padding: 64px 24px;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 600px 350px at 50% 50%, rgba(200, 60, 107, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.final-cta-eyebrow {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-primary-soft);
    margin-bottom: 16px;
    position: relative;
}

.final-cta-title {
    font-family: var(--font-body);
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-bottom: 12px;
    position: relative;
}

.final-cta-text {
    font-size: 0.9rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 32px;
    position: relative;
}

.final-cta-button {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--color-hero-bg);
    background: var(--color-accent);
    text-decoration: none;
    padding: 14px 44px;
    border-radius: var(--radius-sm);
    transition: background-color 0.25s ease, transform 0.2s ease;
    position: relative;
}

.final-cta-button:hover {
    background: #f7de6a;
    transform: translateY(-1px);
}

/* ── Footer ── */
.footer {
    background: #342830;
    color: rgba(255, 255, 255, 0.7);
    padding: 40px 24px 20px;
}

.footer-content {
    margin-bottom: 28px;
}

.footer-content h3 {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-primary-soft);
    margin-bottom: 14px;
}

.footer-content ul {
    list-style: none;
}

.footer-content li {
    font-size: 0.82rem;
    font-weight: 400;
    margin-bottom: 6px;
    padding-left: 16px;
    position: relative;
    line-height: 1.7;
}

.footer-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom p {
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.3);
}

/* ── Animations ── */
@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeScale {
    from { opacity: 0; transform: scale(0.97); }
    to { opacity: 1; transform: scale(1); }
}

/* ── Responsive: Tablet ── */
@media (max-width: 768px) {
    .hero {
        padding: 36px 20px 32px;
    }

    .banner-image {
        border-radius: 10px;
    }

    .countdown-item {
        min-width: 60px;
        padding: 10px 12px 8px;
    }

    .countdown-number {
        font-size: 1.7rem;
    }

    .benefits {
        padding: 36px 20px;
    }

    .benefits-grid {
        gap: 14px;
    }

    .benefit-item {
        padding: 18px 12px;
    }

    .benefit-item h3 {
        font-size: 0.95rem;
    }

    .courses-section {
        padding: 48px 20px;
    }

    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }

    .course-content {
        padding: 20px 18px;
    }

    .course-title {
        font-size: 0.95rem;
    }

    .final-cta {
        padding: 48px 20px;
    }
}

/* ── Responsive: Mobile ── */
@media (max-width: 480px) {
    .hero {
        padding: 28px 16px 24px;
    }

    .banner-image {
        border-radius: 8px;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    }

    .countdown {
        gap: 4px;
    }

    .countdown-item {
        min-width: 52px;
        padding: 8px 8px 6px;
    }

    .countdown-number {
        font-size: 1.4rem;
    }

    .countdown-label {
        font-size: 0.58rem;
    }

    .countdown-sep {
        font-size: 1.1rem;
        padding-bottom: 6px;
    }

    .benefits {
        padding: 28px 16px;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 10px;
        max-width: 340px;
    }

    .benefit-item {
        display: flex;
        align-items: center;
        gap: 14px;
        text-align: left;
        padding: 14px 16px;
    }

    .benefit-icon {
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .benefit-icon svg {
        width: 26px;
        height: 26px;
    }

    .benefit-item h3 {
        font-size: 0.9rem;
        margin-bottom: 2px;
    }

    .benefit-item p {
        font-size: 0.76rem;
    }

    .courses-section {
        padding: 40px 16px;
    }

    .section-header {
        margin-bottom: 28px;
    }

    .category-title {
        font-size: 1.25rem;
    }

    .section-desc {
        font-size: 0.82rem;
    }

    .courses-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .course-content {
        padding: 18px 16px;
    }

    .course-title {
        font-size: 0.92rem;
    }

    .course-description {
        font-size: 0.8rem;
        margin-bottom: 16px;
    }

    .cta-button {
        padding: 12px 20px;
        font-size: 0.85rem;
    }

    .final-cta {
        padding: 40px 16px;
    }

    .final-cta-button {
        padding: 13px 32px;
        font-size: 0.85rem;
    }

    .footer {
        padding: 32px 16px 16px;
    }

    .footer-content li {
        font-size: 0.78rem;
    }
}