@charset "UTF-8";
/* ==========================================================================
   CUCUL FM - Articles Database Page Style
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
    /* Colors - Tech Drone Style */
    --color-bg-dark: #0a0a0f;
    --color-bg-darker: #050508;
    --color-bg-card: #12121a;
    --color-bg-card-hover: #1a1a25;
    --color-primary: #f5e100;
    --color-primary-glow: rgba(245, 233, 0, 0.938);
    --color-secondary: #7b61ff;
    --color-accent: #ff6b6b;
    --color-text: #ffffff;
    --color-text-muted: #8a8a9b;
    --color-text-dim: #5a5a6b;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(245, 233, 0, 0.938);
    
    /* Typography */
    --font-display: 'Orbitron', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Bebas Neue', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    
    /* Spacing */
    --section-padding: clamp(60px, 10vw, 120px);
    --container-max: 1200px;
    --container-padding: clamp(20px, 5vw, 40px);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-dark);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.menu-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

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

address {
    font-style: normal;
}

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

/* --------------------------------------------------------------------------
   Navigation (inherit from main)
   -------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: linear-gradient(to bottom, rgba(10, 10, 15, 0.95), transparent);
    backdrop-filter: blur(10px);
    transition: var(--transition-medium);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.98);
    padding: 15px 0;
    border-bottom: 1px solid var(--color-border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    border-radius: 4px;
}

.logo-text {
    color: var(--color-text);
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-menu a {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: rgba(245, 233, 0, 0.938);
    transition: var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-primary);
    transition: var(--transition-medium);
}

.nav-menu a:hover {
    color: var(--color-text);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-contact {
    display: flex;
    align-items: center;
    gap: 24px;
}

.phone {
    font-family: var(--font-display);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.btn-contact {
    padding: 10px 24px;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--color-bg-dark);
    background: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition-medium);
}

.btn-contact:hover {
    background: var(--color-text);
    box-shadow: 0 0 30px var(--color-primary-glow);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-fast);
}

/* --------------------------------------------------------------------------
   Page Header
   -------------------------------------------------------------------------- */
.page-header {
    position: relative;
    padding: 180px 0 100px;
    text-align: center;
    overflow: hidden;
}

.header-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(123, 97, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 100%, rgba(245, 233, 0, 0.1) 0%, transparent 40%),
        linear-gradient(to bottom, #000510 0%, #0a0a1a 50%, #0f0f20 100%);
}

.stars {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.stars-small {
    background-image: 
        radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 20% 50%, rgba(255,255,255,0.6), transparent),
        radial-gradient(1px 1px at 30% 30%, rgba(255,255,255,0.7), transparent),
        radial-gradient(1px 1px at 40% 70%, rgba(255,255,255,0.5), transparent),
        radial-gradient(1px 1px at 50% 10%, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 60% 40%, rgba(255,255,255,0.6), transparent),
        radial-gradient(1px 1px at 70% 80%, rgba(255,255,255,0.7), transparent),
        radial-gradient(1px 1px at 80% 25%, rgba(255,255,255,0.5), transparent),
        radial-gradient(1px 1px at 90% 60%, rgba(255,255,255,0.8), transparent);
    animation: twinkle 4s ease-in-out infinite;
}

.stars-medium {
    background-image: 
        radial-gradient(1.5px 1.5px at 5% 45%, rgba(255,255,255,0.9), transparent),
        radial-gradient(1.5px 1.5px at 18% 70%, rgba(255,255,255,0.7), transparent),
        radial-gradient(1.5px 1.5px at 33% 20%, rgba(255,255,255,0.8), transparent),
        radial-gradient(1.5px 1.5px at 63% 85%, rgba(255,255,255,0.9), transparent),
        radial-gradient(1.5px 1.5px at 88% 50%, rgba(255,255,255,0.8), transparent);
    animation: twinkle 5s ease-in-out infinite;
    animation-delay: 1s;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translateY(0); }
    100% { transform: translateY(60px); }
}

.header-content {
    position: relative;
    z-index: 10;
}

.page-label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.4em;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.page-title {
    font-family: var(--font-body);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 24px;
}

.page-description {
    font-size: 1rem;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Filter Section
   -------------------------------------------------------------------------- */
.filter-section {
    padding: 40px 0;
    background: var(--color-bg-darker);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 70px;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.filter-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.filter-btn {
    padding: 10px 20px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition-medium);
}

.filter-btn:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

.filter-btn.active {
    color: var(--color-bg-dark);
    background: var(--color-primary);
    border-color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Articles Section
   -------------------------------------------------------------------------- */
.articles-section {
    padding: var(--section-padding) 0;
    background: var(--color-bg-dark);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.article-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition-medium);
}

.article-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-border-hover);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.article-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.article-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.article-official-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 30px;
    padding: 0 12px;
    border-radius: 20px;
    font-family: var(--font-display);
    font-size: 0.625rem;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    background: rgba(10, 10, 15, 0.7);
    border: 1px solid rgba(245, 233, 0, 0.5);
    backdrop-filter: blur(8px);
    transition: var(--transition-medium);
    text-transform: uppercase;
}

.article-official-btn:hover {
    background: var(--color-primary);
    color: var(--color-bg-dark);
    box-shadow: 0 0 20px var(--color-primary-glow);
    border-color: var(--color-primary);
}

.article-official-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-medium);
    filter: brightness(0.9);
}

.article-card:hover .article-image img {
    transform: scale(1.08);
    filter: brightness(1);
}

.article-category {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    font-family: var(--font-display);
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    border-radius: 20px;
    text-transform: uppercase;
}

/* Category Colors */
.cat-construction {
    background: rgba(255, 107, 107, 0.9);
    color: #fff;
}

.cat-ai {
    background: rgba(123, 97, 255, 0.9);
    color: #fff;
}

.cat-dog {
    background: rgba(255, 193, 7, 0.9);
    color: #000;
}

.cat-video {
    background: rgba(245, 233, 0, 0.938);
    color: #000;
}

.cat-condo {
    background: rgba(255, 152, 0, 0.9);
    color: #fff;
}

.cat-web {
    background: rgba(33, 150, 243, 0.9);
    color: #fff;
}

.cat-inspection {
    background: rgba(158, 158, 158, 0.9);
    color: #fff;
}

.article-content {
    padding: 24px;
}

.article-date {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--color-text-dim);
    display: block;
    margin-bottom: 12px;
}

.article-title {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--transition-fast);
}

.article-card:hover .article-title {
    color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    padding: 80px 0 40px;
    background: var(--color-bg-darker);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
    color: var(--color-text);
}

.footer-address {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 16px;
}

.footer-contact-info {
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
}

.copyright {
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

/* --------------------------------------------------------------------------
   Animation
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }
    
    .nav-contact .phone {
        display: none;
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 140px 0 60px;
    }
    
    .filter-section {
        top: 60px;
        padding: 24px 0;
    }
    
    .filter-wrapper {
        gap: 8px;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .article-image {
        height: 180px;
    }
    
    .article-content {
        padding: 20px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 16px;
    }
    
    .page-header {
        padding: 120px 0 50px;
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .filter-btn {
        padding: 6px 12px;
        font-size: 0.75rem;
    }
    
    .article-title {
        font-size: 0.9rem;
    }
    
    .footer {
        padding: 60px 0 32px;
    }
    
    .footer-column {
        text-align: center;
    }
    
    .footer-column ul {
        align-items: center;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-address,
    .footer-contact-info {
        text-align: center;
    }
}

/* Mobile Menu Styles */
@media (max-width: 1024px) {
    .nav-menu {
        display: flex;
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(10px);
        transition: 0.3s ease-in-out;
        z-index: 1000;
        gap: 0;
    }

    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu li {
        margin: 16px 0;
    }
    
    .nav-menu a {
        font-size: 1.25rem;
        color: rgba(245, 233, 0, 0.938);
        padding: 12px 24px;
        display: block;
    }
    
    .nav-menu a:hover,
    .nav-menu a:active {
        color: var(--color-primary);
    }
}

/* Hamburger Active State */
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

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

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}