/* ============================================================
   layout.css  —  全ページ共通スタイル
   色変数は main-dark.css で定義
   Heading: Lora (serif) / Body: system sans-serif
   ============================================================ */

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

body {
    background: var(--dark-gray);
    color: var(--text-color);
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    font-size: 18px;
    line-height: 1.8;
}

ul {
    padding-inline-start: 0;
}

/* --- Typography -------------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--light-gold);
    font-family: 'Lora', 'Times New Roman', Georgia, serif;
    font-weight: 400;
    letter-spacing: 0.04em;
}

.h1,
.h2,
.h3,
h1,
h2,
h3 {
    margin-top: 5.0rem;
    margin-bottom: 0.6rem;
}

p a,
a {
    color: var(--light-gold);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover,
a:focus {
    color: var(--hover-gold);
    filter: blur(1px);
}

hr {
    border: none;
    height: 1px;
    background: var(--border-light);
    margin: 1.5rem 0;
}

hr.small {
    background: #555;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 3px;
}

blockquote {
    border-left: 3px solid var(--light-gold);
    padding-left: 1.2rem;
    margin: 1.2rem 0;
    color: var(--medium-gray);
    font-style: italic;
}

code {
    background: var(--bg-dark);
    color: var(--hover-gold);
    padding: 2px 5px;
    border-radius: 3px;
    border: 1px solid var(--border-dark);
    font-size: 0.88em;
}

pre {
    background: var(--bg-dark);
    border: 1px solid var(--border-dark);
    border-radius: 4px;
    padding: 12px;
    color: var(--text-color);
    overflow-x: auto;
}

pre code {
    background: none;
    border: none;
    padding: 0;
}

/* --- Navbar ------------------------------------------------ */
.navbar-default {
    background-color: var(--dark-gray);
    border-color: var(--border-light);
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.6);
}

.navbar-default .navbar-brand {
    color: var(--light-gold);
    font-family: 'Lora', serif;
    letter-spacing: 0.1em;
}

.navbar-default .navbar-brand:hover,
.navbar-default .navbar-brand:focus {
    color: var(--hover-gold);
}

.navbar-default .navbar-nav>li>a {
    color: var(--light-gold);
}

.navbar-default .navbar-nav>li>a:hover,
.navbar-default .navbar-nav>li>a:focus {
    color: var(--hover-gold);
    background: transparent;
}

.navbar-custom .nav li a {
    font-size: 15px;
}

/* --- Header / Intro --------------------------------------- */
.intro-header {
    background: var(--dark-gray);
    padding: 100px 0 50px;
}

.intro-header.big-img {
    background: no-repeat center center;
    background-size: cover;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    padding: 0;
    height: 400px;
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .intro-header.big-img {
        height: 220px;
    }
}

.intro-header .page-heading h1 {
    color: var(--light-gold);
    font-size: 48px;
    margin-top: 0;
}

/* --- Buttons ---------------------------------------------- */
.btn {
    padding: 8px 18px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background-color: transparent;
    border: 1px solid var(--light-gold);
    border-radius: 2px;
    color: var(--light-gold);
    font-size: 0.85em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s;
}

.btn:hover,
.btn:focus {
    background-color: var(--light-gold);
    color: var(--dark-gray);
}

/* --- Back to top button ------------------------------------ */
#back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 42px;
    height: 42px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--light-gold);
    border-radius: 2px;
    color: var(--light-gold);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, background 0.25s, color 0.25s;
    z-index: 999;
}

#back-to-top.show {
    opacity: 1;
    visibility: visible;
}

#back-to-top:hover {
    background: var(--light-gold);
    color: var(--dark-gray);
}

/* --- Pager ------------------------------------------------ */
.pager li>a {
    background: var(--bg-dark);
    border: 1px solid var(--border-dark);
    color: var(--light-gold);
    border-radius: 2px;
    transition: all 0.2s;
}

.pager li>a:hover,
.pager li>a:focus {
    background: var(--light-gold);
    border-color: var(--light-gold);
    color: var(--dark-gray);
}

/* --- Forms ------------------------------------------------ */
input[type="text"],
input[type="email"],
input[type="url"],
textarea,
select {
    display: block;
    width: 100%;
    padding: 8px 10px;
    margin: 8px 0 14px;
    border: 1px solid var(--border-dark);
    border-radius: 3px;
    background: var(--bg-dark);
    color: var(--text-color);
    font-size: 14px;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--light-gold);
}

/* --- Footer ----------------------------------------------- */
footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-light);
    padding: 28px 0;
    font-size: 13px;
    margin-top: 60px;
    text-align: center;
}

footer a {
    color: var(--light-gold);
}

footer a:hover {
    color: var(--hover-gold);
}

footer .copyright,
footer .theme-by {
    color: var(--medium-gray);
}

/* --- Post preview ----------------------------------------- */
.post-preview {
    border-bottom: 1px solid var(--border-light);
    padding: 28px 0;
}

.post-preview a {
    color: var(--light-gold);
}

.post-preview .post-title {
    font-size: 28px;
    margin-top: 0;
}

.post-preview .post-subtitle {
    color: var(--medium-gray);
    font-weight: 300;
    font-size: 16px;
    margin: 8px 0 24px;
}

.post-meta {
    color: var(--medium-gray);
    font-style: italic;
}

/* --- Error pages ------------------------------------------ */
.error-page {
    text-align: center;
    padding: 120px 24px 80px;
}

.error-code {
    font-family: 'Lora', serif;
    font-size: 6rem;
    color: var(--light-gold);
    letter-spacing: 0.1em;
    margin: 0 0 16px;
    line-height: 1;
}

.error-message {
    font-size: 1.2em;
    color: var(--light-gray);
    letter-spacing: 0.08em;
    margin: 0 0 12px;
}

.error-sub {
    color: var(--medium-gray);
    font-size: 0.9em;
    margin: 0 0 40px;
}

/* --- Responsive ------------------------------------------- */
@media (max-width: 768px) {
    .intro-header .page-heading h1 {
        font-size: 32px;
    }
}