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

:root {
    --red: #C41E3A;
    --red-dark: #9B1B30;
    --red-light: #E8384F;
    --white: #FAF7F2;
    --cream: #F5F0E8;
    --black: #1A1A1A;
    --gray: #6B6B6B;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: var(--white);
    color: var(--black);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(196, 30, 58, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(196, 30, 58, 0.03) 0%, transparent 50%);
}

/* === Container === */
.container {
    width: 100%;
    max-width: 480px;
    margin: 2rem;
    text-align: center;
}

/* === Hero Image === */
.hero-image {
    width: 200px;
    height: 200px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--red);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--cream);
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-image .fallback-icon {
    font-size: 5rem;
    display: none;
}

.hero-image.no-image .fallback-icon {
    display: block;
}

/* === Content === */
.content {
    padding: 0 1rem;
}

.title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
    letter-spacing: 0.02em;
    margin-bottom: 0.25rem;
}

.subtitle {
    font-size: 1rem;
    color: var(--gray);
    font-weight: 300;
    letter-spacing: 0.3em;
    margin-bottom: 1.5rem;
}

/* === Divider === */
.divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 1.5rem 0 2rem;
    position: relative;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--red), transparent);
    max-width: 120px;
}

.divider .circle {
    width: 8px;
    height: 8px;
    background: var(--red);
    border-radius: 50%;
    margin: 0 1rem;
}

/* === Button === */
.claim-btn {
    display: inline-block;
    padding: 1rem 3rem;
    font-size: 1.15rem;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 700;
    color: var(--white);
    background: var(--red);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(196, 30, 58, 0.3);
}

.claim-btn:hover {
    background: var(--red-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(196, 30, 58, 0.4);
}

.claim-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(196, 30, 58, 0.3);
}

.claim-btn:disabled {
    background: var(--gray);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.claim-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.claim-btn:hover::after {
    width: 300px;
    height: 300px;
}

/* === Messages === */
.message {
    padding: 1.5rem;
    border-radius: 4px;
    animation: fadeIn 0.6s ease;
}

.message p {
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
    font-weight: 700;
}

.message .jp-text {
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--gray);
}

.message-success {
    background: var(--cream);
    border-left: 4px solid var(--red);
    color: var(--black);
}

.message-claimed {
    background: var(--cream);
    border-left: 4px solid var(--gray);
    color: var(--gray);
}

.message-error {
    background: #FFF0F0;
    border-left: 4px solid var(--red-light);
    color: var(--red-dark);
}

/* === Footer / Seal === */
.footer {
    margin-top: 3rem;
}

.seal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border: 2px solid var(--red);
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--red);
    font-weight: 700;
    opacity: 0.6;
}

/* === Animations === */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Responsive === */
@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }

    .claim-btn {
        padding: 0.85rem 2rem;
        font-size: 1rem;
    }

    .hero-image {
        width: 150px;
        height: 150px;
    }
}