/* ============================================
   Life in the Cloud - Design System
   Modern, dark theme with developer vibe
   ============================================ */

/* Variables */
:root {
    /* Colors - Dark theme */
    --color-bg-primary: #0a0e1a;
    --color-bg-secondary: #111827;
    --color-bg-tertiary: #1a1f2e;
    --color-bg-card: #1e293b;

    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;

    --color-accent: #3b82f6;
    --color-accent-hover: #2563eb;
    --color-accent-light: #60a5fa;

    --color-border: #334155;
    --color-border-light: #475569;

    --color-success: #10b981;
    --color-error: #ef4444;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-family-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-family-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Fira Mono', 'Droid Sans Mono', 'Source Code Pro', monospace;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* Header & Navigation */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: var(--font-size-lg);
    transition: color var(--transition-fast);
}

.logo:hover {
    color: var(--color-accent);
}

.logo-icon {
    font-size: var(--font-size-2xl);
}

.logo-image {
    height: 24px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

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

.nav-link-cta {
    background-color: var(--color-accent);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
}

.nav-link-cta::after {
    display: none;
}

.nav-link-cta:hover {
    background-color: var(--color-accent-hover);
    color: white;
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-base);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-bg-secondary);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        border-top: 1px solid var(--color-border);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

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

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

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* Main Content */
.main {
    min-height: calc(100vh - 70px);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: var(--spacing-2xl) 0;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    opacity: 0.1;
}

.hero-grid {
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(var(--color-accent) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-accent) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-logo {
    margin-bottom: var(--spacing-xl);
    display: flex;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero-logo .logo-image {
    height: 120px;
    width: auto;
    max-width: 100%;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-title-line {
    display: block;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

.hero-title-line:nth-child(2) {
    animation-delay: 0.2s;
    animation-fill-mode: both;
}

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

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-size: var(--font-size-base);
    font-family: inherit;
}

.btn-primary {
    background-color: var(--color-accent);
    color: white;
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}

.btn-outline:hover {
    background-color: var(--color-accent);
    color: white;
}

/* Features Section */
.features {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background-color: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}


/* Webpage Preview Section */
.page-preview {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-secondary);
}

.page-preview-content {
    max-width: 1000px;
    margin: 0 auto;
}

.page-preview-text h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.page-preview-text p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    font-size: var(--font-size-lg);
}

/* About Preview Section */
.about-preview {
    padding: var(--spacing-2xl) 0;
}

.about-preview-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-preview-text h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.about-preview-text p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    font-size: var(--font-size-lg);
}

/* Blog Preview Section */
.customer-list {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg-primary);
}


/* Blog Preview Section */
.blog-preview {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-secondary);
}

.section-title {
    font-size: var(--font-size-3xl);
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.blog-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.blog-card {
    background-color: var(--color-bg-card);
    padding: 0;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.blog-card-image {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding-top: 56.25%; /* 16:9 aspect ratio */
    background-color: var(--color-bg-tertiary);
}

.blog-card-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-base);
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

.blog-card-content {
    padding: var(--spacing-lg);
}

.blog-card-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    margin-top: 0;
}

.blog-card-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.blog-card-title a {
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.blog-card-title a:hover {
    color: var(--color-accent);
}

.blog-card-excerpt {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.blog-card-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.blog-card-link:hover {
    color: var(--color-accent-light);
}

.blog-preview-cta {
    text-align: center;
}

.blog-empty {
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--spacing-2xl);
}

/* Page Header */
.page-header {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    border-bottom: 1px solid var(--color-border);
}

.page-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.page-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

/* Page Content */
.page-content {
    padding: var(--spacing-2xl) 0;
}

.service-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}


.legal-content h2 {
    font-size: var(--font-size-2xl);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-border);
}

.legal-content h2:first-child {
    margin-top: 0;
}

.legal-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    font-size: var(--font-size-base);
}

.bio-content h2 {
    font-size: var(--font-size-2xl);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-border);
}

.bio-content h2:first-child {
    margin-top: 0;
}

.bio-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    font-size: var(--font-size-base);
}

.cta-section {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.cta-section h2 {
    margin-bottom: var(--spacing-sm);
}

.cta-section p {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-secondary);
}

.cta-section .btn {
    margin: 0 var(--spacing-xs);
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.service-card {
    background-color: var(--color-bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.service-icon {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-md);
}

.service-card h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.service-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.service-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.service-list li {
    color: var(--color-text-secondary);
    padding-left: var(--spacing-md);
    position: relative;
    margin-bottom: var(--spacing-xs);
}

.service-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.service-value {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-style: italic;
}

.service-value strong {
    color: var(--color-text-primary);
}

/* Blog List */
.blog-list {
    max-width: 800px;
    margin: 0 auto;
}

.blog-item {
    background-color: var(--color-bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.blog-item:hover {
    transform: translateX(4px);
    border-color: var(--color-accent);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.blog-item-image {
    width: 100%;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.blog-item-image img {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-base);
}

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

.blog-item-content {
    flex: 1;
}

.blog-item-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.blog-item-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.blog-item-title a {
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.blog-item-title a:hover {
    color: var(--color-accent);
}

.blog-item-excerpt {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.blog-item-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.blog-item-link:hover {
    color: var(--color-accent-light);
}

/* Article */
.article-header {
    max-width: 800px;
    margin: 0 auto;
}

.article-image {
    max-width: 1000px;
    margin: 0 auto var(--spacing-xl);
    overflow: hidden;
    border-radius: var(--border-radius-lg);
}

.article-image img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: cover;
    display: block;
}

.article-back {
    display: inline-block;
    color: var(--color-accent);
    text-decoration: none;
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.article-back:hover {
    color: var(--color-accent-light);
}

.article-date {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-size: var(--font-size-lg);
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4 {
    color: var(--color-text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.article-content h1 {
    font-size: var(--font-size-3xl);
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--spacing-sm);
}

.article-content h2 {
    font-size: var(--font-size-2xl);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--spacing-xs);
}

.article-content h3 {
    font-size: var(--font-size-xl);
}

.article-content p {
    margin-bottom: var(--spacing-md);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.article-content li {
    margin-bottom: var(--spacing-xs);
}

.article-content code {
    background-color: var(--color-bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: var(--font-family-mono);
    font-size: 0.9em;
    color: var(--color-accent-light);
}

.article-content pre {
    background-color: var(--color-bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
}

.article-content pre code {
    background: none;
    padding: 0;
    color: var(--color-text-primary);
}

.article-content blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    color: var(--color-text-muted);
    font-style: italic;
}

.article-content a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.article-content a:hover {
    color: var(--color-accent-light);
    text-decoration: underline;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
    display: block;
}

.article-footer {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

/* Contact */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-2xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.contact-info p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.contact-details {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.contact-details p {
    color: var(--color-text-secondary);
}

.contact-form-wrapper {
    background-color: var(--color-bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
}

.contact-form {
    position: relative;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Alerts */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-error);
    color: var(--color-error);
}


/* Footer */
.footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.footer-section p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.footer-bottom a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.logos-container {
    display: flex;
    flex-wrap: wrap;
    gap: 3%;           /* espace horizontal entre logos */
    row-gap: 50px;      /* espace vertical entre lignes */
    justify-content: center;
}

.logo-item {
    flex: 0 0 calc(20% - 2%); /* 5 logos par ligne */
    text-align: center;
    position: relative;
}

.logo-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain; /* les logos gardent leurs proportions */
    max-height: 170px;    /* hauteur uniforme */
}

.logo-item .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    font-size: 2rem;
    pointer-events: none;
}

.logo-item:hover .overlay {
    opacity: 1;
}


@media (max-width: 768px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .blog-preview-grid {
        grid-template-columns: 1fr;
    }

    .blog-item-image img {
        max-height: 200px;
    }

    .article-image img {
        max-height: 300px;
    }
}