/*
Theme Name: ツレメシ
Theme URI: https://turemeshi.jp
Author: ジェイノーム
Author URI: https://jnome.co.jp
Description: 徒然なるままにヒルメシ - 食レポブログテーマ
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: turemeshi
*/

/* ===================================
   CSS Variables & Base
   =================================== */

:root {
    /* Colors - Editorial Luxury */
    --color-black: #1a1a1a;
    --color-white: #fefefe;
    --color-gray-100: #f8f8f8;
    --color-gray-200: #e8e8e8;
    --color-gray-300: #d0d0d0;
    --color-gray-400: #a0a0a0;
    --color-gray-500: #707070;
    --color-gray-600: #505050;
    --color-gray-700: #303030;
    --color-gold: #b8956c;
    --color-gold-light: #d4b896;
    --color-gold-dark: #8a6f4e;

    /* Typography */
    --font-serif: 'Shippori Mincho', 'Noto Serif JP', serif;
    --font-sans: 'Noto Sans JP', sans-serif;
    --font-display: 'Cormorant Garamond', serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --space-2xl: 8rem;

    /* Layout */
    --max-width: 1200px;
    --max-width-content: 800px;
    --max-width-narrow: 640px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===================================
   Reset & Base
   =================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-serif);
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-black);
    background-color: var(--color-white);
    letter-spacing: 0.02em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

ul, ol {
    list-style: none;
}

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

/* ===================================
   Header
   =================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(254, 254, 254, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
}

.header__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header__logo-icon {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-gold);
}

.header__logo-text {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0.1em;
}

.header__nav {
    display: flex;
    gap: 2.5rem;
}

.header__nav-link {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-gray-600);
    letter-spacing: 0.05em;
    position: relative;
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-gold);
    transition: width var(--transition-base);
}

.header__nav-link:hover::after {
    width: 100%;
}

.header__menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 0.5rem;
}

.header__menu-btn span {
    display: block;
    width: 24px;
    height: 1px;
    background: var(--color-black);
    transition: var(--transition-base);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--color-gray-100);
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 26, 0.3) 0%,
        rgba(26, 26, 26, 0.1) 50%,
        rgba(184, 149, 108, 0.1) 100%
    );
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem;
}

.hero__icon {
    font-family: var(--font-serif);
    font-size: 5rem;
    color: var(--color-gold);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.3s forwards;
}

.hero__title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 400;
    letter-spacing: 0.3em;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.5s forwards;
}

.hero__subtitle {
    font-family: var(--font-display);
    font-size: clamp(1rem, 3vw, 1.5rem);
    font-weight: 400;
    font-style: italic;
    color: var(--color-gray-500);
    letter-spacing: 0.2em;
    opacity: 0;
    animation: fadeInUp 1s ease 0.7s forwards;
}

.hero__scroll {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    animation: fadeIn 1s ease 1.2s forwards;
}

.hero__scroll-text {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--color-gray-500);
    text-transform: uppercase;
}

.hero__scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-gold), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

/* ===================================
   Sections
   =================================== */

.section {
    padding: var(--space-2xl) var(--space-lg);
}

.section__inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section__label {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-style: italic;
    color: var(--color-gold);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.section__title {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 400;
    letter-spacing: 0.15em;
}

/* ===================================
   Card Component
   =================================== */

.card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
    transition: var(--transition-base);
}

.card:hover {
    border-color: var(--color-gold-light);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.card__link {
    display: block;
}

.card__image-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3 / 2;
}

.card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card__image {
    transform: scale(1.05);
}

.card__content {
    padding: 1.5rem;
}

.card__meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.card__category {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.card__date {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-style: italic;
    color: var(--color-gray-400);
}

.card__title {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 0.75rem;
    transition: color var(--transition-fast);
}

.card:hover .card__title {
    color: var(--color-gold-dark);
}

.card__excerpt {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.card__tag {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--color-gray-500);
}

/* ===================================
   Featured Card
   =================================== */

.card--featured {
    border: none;
    background: transparent;
}

.card--featured .card__link {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.card--featured .card__image-wrap {
    aspect-ratio: 4 / 3;
}

.card--featured .card__content {
    padding: 2rem 0;
}

.card--featured .card__title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.card--featured .card__excerpt {
    -webkit-line-clamp: 4;
    margin-bottom: 1.5rem;
}

.card--featured .card__more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-style: italic;
    color: var(--color-gold);
    letter-spacing: 0.1em;
}

.card--featured .card__more span {
    transition: transform var(--transition-fast);
}

.card--featured:hover .card__more span {
    transform: translateX(4px);
}

/* ===================================
   Grid Layouts
   =================================== */

.grid {
    display: grid;
    gap: 2rem;
}

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

.grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ===================================
   Category Navigation
   =================================== */

.category-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.category-nav__item {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-600);
    transition: var(--transition-fast);
}

.category-nav__item:hover,
.category-nav__item--active {
    border-color: var(--color-gold);
    color: var(--color-gold);
    background: rgba(184, 149, 108, 0.05);
}

/* ===================================
   Footer
   =================================== */

.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--space-xl) var(--space-lg);
}

.footer__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
}

.footer__brand {
    margin-bottom: var(--space-lg);
}

.footer__logo-icon {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--color-gold);
    display: block;
    margin-bottom: 0.5rem;
}

.footer__logo-text {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    margin-bottom: 0.5rem;
}

.footer__tagline {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-style: italic;
    color: var(--color-gray-400);
    letter-spacing: 0.1em;
}

.footer__nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: var(--space-lg);
}

.footer__nav a {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--color-gray-400);
}

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

.footer__social {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: var(--space-lg);
}

.footer__social-link {
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-gray-600);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    transition: var(--transition-fast);
}

.footer__social-link:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
}

.footer__copyright {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--color-gray-500);
}

/* ===================================
   Animations
   =================================== */

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

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

@keyframes scrollLine {
    0%, 100% {
        transform: scaleY(1);
        transform-origin: top;
    }
    50% {
        transform: scaleY(0.5);
        transform-origin: top;
    }
}

/* ===================================
   Responsive
   =================================== */

@media (max-width: 1024px) {
    .grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .card--featured .card__link {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header__nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-lg);
        z-index: 999;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .header__nav.is-open {
        display: flex;
        opacity: 1;
    }

    .header__nav a {
        font-size: 1.25rem;
        padding: var(--space-sm) var(--space-md);
    }

    .header__menu-btn {
        display: flex;
        z-index: 1000;
    }

    .header__menu-btn.is-active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .header__menu-btn.is-active span:nth-child(2) {
        opacity: 0;
    }

    .header__menu-btn.is-active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    body.menu-open {
        overflow: hidden;
    }

    .grid--2,
    .grid--3,
    .grid--4 {
        grid-template-columns: 1fr;
    }

    .section {
        padding: var(--space-xl) var(--space-md);
    }
}