/* ========================================
   PREMIUM LOGOFILE CSS - WHITE MODE
   Modern, Clean, Professional UI/UX
   ======================================== */

:root {
    --primary: #000000;
    --primary-dark: #1a1a1a;
    --secondary: #333333;
    --accent: #0066ff;
    --accent-light: #e6f0ff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --white: #ffffff;
    --black: #000000;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto;
    background: var(--white);
    color: var(--gray-900);
    line-height: 1.6;
    scroll-behavior: smooth;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,300;14..32,400;14..32,500;14..32,600;14..32,700;14..32,800&display=swap');

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
}

/* ========================================
   HEADER WITH SEARCH
   ======================================== */
header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.98);
}

nav {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    nav {
        padding: 12px 20px;
        flex-direction: column;
    }
}

.logo {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.logo a {
    text-decoration: none;
    color: var(--black);
}

.nav-search {
    flex: 1;
    max-width: 400px;
    position: relative;
}

.nav-search input {
    width: 100%;
    padding: 10px 16px;
    font-size: 14px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-2xl);
    outline: none;
    background: var(--gray-50);
    transition: all 0.2s;
}

.nav-search input:focus {
    border-color: var(--black);
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.nav-search .suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-height: 350px;
    overflow-y: auto;
    display: none;
    z-index: 1000;
    margin-top: 8px;
    border: 1px solid var(--gray-200);
}

.nav-search .suggestion-item {
    padding: 12px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--gray-100);
    transition: background 0.2s;
}

.nav-search .suggestion-item:hover {
    background: var(--gray-50);
}

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

.nav-links a {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--black);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border-bottom: 1px solid var(--gray-200);
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.hero p {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 32px; }
    .hero p { font-size: 16px; }
}

/* ========================================
   FEATURED GRID
   ======================================== */
.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.featured-card {
    text-align: center;
    padding: 24px 16px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
    text-decoration: none;
    display: block;
}

.featured-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gray-300);
}

.featured-card img {
    max-width: 80px;
    max-height: 60px;
    width: auto;
    height: auto;
    margin-bottom: 16px;
}

.featured-card span {
    display: block;
    color: var(--gray-900);
    font-weight: 500;
    font-size: 14px;
}

/* ========================================
   LOGO CARD - FULL CLICKABLE
   ======================================== */
.logo-card {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.logo-card:hover {
    box-shadow: var(--shadow-lg);
}

.logo-card-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.logo-image-side {
    background: var(--gray-50);
    padding: 48px 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid var(--gray-200);
}

.logo-image-side img {
    max-width: 100%;
    max-height: 240px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.logo-content-side {
    padding: 48px 40px;
    background: var(--white);
}

.brand-name {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--black);
    margin-bottom: 16px;
}

.description {
    color: var(--gray-600);
    line-height: 1.7;
    margin: 20px 0 24px;
    font-size: 16px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--black);
    color: var(--white);
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-2xl);
    cursor: pointer;
    transition: all 0.2s;
}

.download-btn:hover {
    background: var(--gray-800);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.download-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.tip-box {
    background: var(--gray-50);
    border-left: 3px solid var(--black);
    padding: 12px 16px;
    margin: 20px 0 0;
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--gray-600);
}

.tip-box strong {
    color: var(--black);
}

.breadcrumb {
    margin-bottom: 24px;
    color: var(--gray-500);
    font-size: 14px;
}

.breadcrumb a {
    color: var(--gray-600);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--black);
}

/* ========================================
   RELATED LOGOS - FULL CLICKABLE CARDS
   ======================================== */
.related-section {
    margin-top: 60px;
    padding: 48px 0;
    background: var(--gray-50);
    border-radius: var(--radius-xl);
}

.related-section h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 32px;
    text-align: center;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 20px;
}

.related-card {
    display: block;
    text-decoration: none;
    text-align: center;
    padding: 20px 12px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: all 0.2s;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--gray-300);
}

.related-card img {
    max-width: 60px;
    max-height: 50px;
    width: auto;
    height: auto;
    margin-bottom: 12px;
}

.related-card span {
    display: block;
    color: var(--gray-700);
    font-size: 13px;
    font-weight: 500;
}

.related-card:hover span {
    color: var(--black);
}

/* ========================================
   LOADING & ERROR
   ======================================== */
.loading-spinner, .error-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    padding: 60px 20px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--black);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error-container h1 {
    font-size: 80px;
    font-weight: 800;
    color: var(--black);
    margin-bottom: 16px;
}

.back-home {
    display: inline-block;
    margin-top: 24px;
    padding: 12px 32px;
    background: var(--black);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-2xl);
}

/* ========================================
   FOOTER
   ======================================== */
footer {
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    text-align: center;
    padding: 32px;
    color: var(--gray-500);
    font-size: 13px;
    margin-top: 60px;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .logo-card-inner {
        grid-template-columns: 1fr;
    }
    
    .logo-image-side {
        padding: 40px 24px;
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .logo-image-side img {
        max-height: 160px;
    }
    
    .logo-content-side {
        padding: 28px 24px;
    }
    
    .brand-name {
        font-size: 28px;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
    
    .related-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 16px;
    }
    
    .related-card {
        padding: 16px 8px;
    }
    
    .related-card img {
        max-width: 50px;
        max-height: 42px;
    }
}

@media (max-width: 480px) {
    .brand-name { font-size: 24px; }
    .description { font-size: 14px; }
    .tip-box { font-size: 12px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}