/*
Theme Name: Explorer Nishikawa
Theme URI: https://example.com/explorer-nishikawa
Author: Fumiaki Nishikawa
Description: 7大陸最高峰および北極点・南極点制覇を目指す冒険家、西川史晃のオフィシャルテーマ。
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: explorer-nishikawa
*/

/* Basic Reset & Styles */
body {
    margin: 0;
    padding: 0;
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

h1, h2, h3, .oswald {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    position: fixed;
    width: 100%;
    z-index: 1000;
    background: rgba(0,0,0,0.5);
    color: #fff;
    padding: 10px 0;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title a {
    color: #fff;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

.main-navigation ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-navigation li {
    margin-left: 20px;
}

.main-navigation a {
    color: #fff;
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* Sections */
section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero {
    height: 100vh;
    background: #000;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-size: cover;
    background-position: center;
}

.hero-content h1 {
    font-size: 8rem;
    margin: 0;
    line-height: 0.9;
    letter-spacing: -0.02em;
    font-weight: 900;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: fadeInUp 1.5s ease-out;
}

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

.hero-content p {
    font-size: 1.5rem;
    letter-spacing: 0.3em;
    margin-top: 20px;
    animation: fadeIn 2s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.section-dark {
    background: #000;
    color: #fff;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: #ff4500;
    margin: 20px auto 0;
}

.summit-info-card {
    background: #f9f9f9;
    padding: 20px;
    border-left: 4px solid #ff4500;
}

.summit-info-card strong {
    font-size: 1.1rem;
    color: #ff4500;
}

/* Story Section */
.story-box {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 80px;
}

.story-box:nth-child(even) {
    flex-direction: row-reverse;
}

.story-text {
    flex: 1;
}

.story-image {
    flex: 1;
}

.story-tag {
    font-size: 1.2rem;
    color: #888;
    margin-bottom: 10px;
}

.story-title {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

/* Grid */
.summit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.summit-item {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.summit-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.summit-item:hover img {
    transform: scale(1.05);
}

.summit-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
}

.summit-date {
    font-size: 0.8rem;
    background: #000;
    display: inline-block;
    padding: 2px 10px;
    margin-bottom: 5px;
}

/* Future Schedule */
.schedule-list {
    list-style: none;
    padding: 0;
}

.schedule-item {
    display: flex;
    border-bottom: 1px solid #444;
    padding: 20px 0;
}

.schedule-date {
    width: 200px;
    font-weight: bold;
}

/* Footer */
.site-footer {
    background: #000;
    color: #fff;
    padding: 40px 0;
    text-align: center;
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    .story-box {
        flex-direction: column !important;
    }
    .section-title {
        font-size: 2rem;
    }
}