/* 
    Odonata R&D Theme
    Modern Light Tech Design System (Silka Font)
*/

@font-face {
    font-family: 'Silka';
    src: url('../fonts/Silka-Roman-Webfont/silka-regular-webfont.woff2') format('woff2'),
         url('../fonts/Silka-Roman-Webfont/silka-regular-webfont.woff') format('woff');
    font-weight: 400;
    font-style: normal;
}

@font-face {
    font-family: 'Silka';
    src: url('../fonts/Silka-Roman-Webfont/silka-medium-webfont.woff2') format('woff2'),
         url('../fonts/Silka-Roman-Webfont/silka-medium-webfont.woff') format('woff');
    font-weight: 500;
    font-style: normal;
}

@font-face {
    font-family: 'Silka';
    src: url('../fonts/Silka-Roman-Webfont/silka-semibold-webfont.woff2') format('woff2'),
         url('../fonts/Silka-Roman-Webfont/silka-semibold-webfont.woff') format('woff');
    font-weight: 600;
    font-style: normal;
}

@font-face {
    font-family: 'Silka';
    src: url('../fonts/Silka-Roman-Webfont/silka-bold-webfont.woff2') format('woff2'),
         url('../fonts/Silka-Roman-Webfont/silka-bold-webfont.woff') format('woff');
    font-weight: 700;
    font-style: normal;
}

:root {
    /* Color Palette - Clean Light Theme */
    --clr-bg: #fdfdfd;
    --clr-surface: #ffffff;
    --clr-surface-hover: #f1f5f9;
    --clr-border: #e2e8f0;
    
    /* Brand Colors - Adjusting to fit light theme */
    --clr-accent: #0284c7; /* Brand Blue */
    --clr-accent-light: #e0f2fe;
    --clr-accent-secondary: #0ea5e9;
    
    /* Text Colors */
    --clr-text: #334155;
    --clr-text-muted: #64748b;
    --clr-heading: #0f172a;
    --clr-white: #ffffff;

    /* Typography */
    --font-primary: 'Silka', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    /* Layout & spacing */
    --container-max: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Effects */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

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

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

body {
    background-color: var(--clr-bg);
    color: var(--clr-text);
    font-family: var(--font-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    color: var(--clr-heading);
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; margin-bottom: var(--spacing-md); }
h3 { font-size: 1.25rem; margin-bottom: var(--spacing-xs); font-weight: 600; }

p { margin-bottom: var(--spacing-sm); }
a { color: inherit; text-decoration: none; transition: var(--transition-base); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.text-center { text-align: center; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-primary);
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-base);
    border: 2px solid transparent;
    font-size: 0.95rem;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--clr-accent);
    color: var(--clr-white);
    box-shadow: 0 4px 14px 0 rgba(2, 132, 199, 0.39);
}

.btn-primary:hover {
    background: var(--clr-accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(2, 132, 199, 0.23);
    color: var(--clr-white);
}

.btn-secondary {
    background: transparent;
    color: var(--clr-heading);
    border-color: var(--clr-border);
}

.btn-secondary:hover {
    border-color: var(--clr-heading);
    background: var(--clr-surface-hover);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--clr-border);
    box-shadow: var(--shadow-sm);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 35px; /* Adjust based on logo proportions */
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--clr-text);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--clr-heading);
    position: absolute;
    transition: var(--transition-base);
}

.mobile-menu-btn span:nth-child(1) { top: 0; }
.mobile-menu-btn span:nth-child(2) { top: 9px; }
.mobile-menu-btn span:nth-child(3) { top: 18px; }

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
}

.section-header.text-center {
    margin-left: auto;
    margin-right: auto;
}

.subheading {
    display: inline-block;
    color: var(--clr-accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    background: var(--clr-accent-light);
    padding: 0.4rem 1rem;
    border-radius: 50px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    background: radial-gradient(circle at top right, var(--clr-accent-light) 0%, transparent 50%),
                radial-gradient(circle at bottom left, #f1f5f9 0%, transparent 50%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

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

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transform: perspective(1000px) rotateY(-5deg);
    transition: var(--transition-slow);
}

.hero-image-wrapper:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.hero-image-wrapper img {
    width: 100%;
    height: auto;
    min-height: 400px;
    object-fit: cover;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--clr-white);
    color: var(--clr-text);
    border: 1px solid var(--clr-border);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.hero h1 {
    margin-bottom: 1.5rem;
}

.hero h1 span {
    color: var(--clr-accent);
}

.hero p {
    font-size: 1.25rem;
    color: var(--clr-text);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* About Section */
.about {
    background-color: var(--clr-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text .lead {
    font-size: 1.25rem;
    color: var(--clr-heading);
    font-weight: 500;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
}

/* Expertise Section */
.expertise {
    background-color: #f8fafc;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.expertise-card {
    background: var(--clr-white);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    padding: 2.5rem 2rem;
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.expertise-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--clr-accent-light);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--clr-accent-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-accent);
    margin-bottom: 1.5rem;
}

.expertise-card h3 {
    margin-bottom: 1rem;
    color: var(--clr-heading);
}

.expertise-card p {
    color: var(--clr-text);
    margin: 0;
    font-size: 1rem;
}

/* Why Us Section */
.why-us {
    background-color: var(--clr-white);
    border-top: 1px solid var(--clr-border);
    border-bottom: 1px solid var(--clr-border);
}

.why-us-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.feature-list li {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    background: var(--clr-bg);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--clr-border);
}

.feature-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--clr-accent-light);
    color: var(--clr-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.feature-list strong {
    display: block;
    color: var(--clr-heading);
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
}

.why-image {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.why-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* Contact Section */
.contact {
    background-color: var(--clr-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item .label {
    display: block;
    font-weight: 600;
    color: var(--clr-text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.contact-item .value {
    color: var(--clr-heading);
    font-size: 1.1rem;
    font-weight: 500;
    line-height: 1.4;
}

.contact-item a.value:hover {
    color: var(--clr-accent);
}

/* Form Styles */
.form {
    background: var(--clr-white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--clr-border);
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--clr-heading);
    margin-bottom: 0.5rem;
}

.form input,
.form textarea {
    width: 100%;
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    color: var(--clr-heading);
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-base);
}

.form input:focus,
.form textarea:focus {
    outline: none;
    border-color: var(--clr-accent);
    background: var(--clr-white);
    box-shadow: 0 0 0 4px var(--clr-accent-light);
}

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

.btn-block {
    width: 100%;
    margin-top: 1rem;
    position: relative;
    padding: 1rem;
}

.spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    position: absolute;
    right: 20px;
}

@keyframes spin { 100% { transform: rotate(360deg); } }

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--radius-sm);
    display: none;
    font-size: 0.95rem;
    text-align: center;
    font-weight: 500;
}

.form-message.success {
    display: block;
    background: #ecfdf5;
    color: #059669;
    border: 1px solid #a7f3d0;
}

.form-message.error {
    display: block;
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

/* Footer */
.footer {
    border-top: 1px solid var(--clr-border);
    padding: 3rem 0;
    background: var(--clr-white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo-small img {
    height: 24px;
    width: auto;
}

.footer p {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
    margin: 0;
}

.footer-links a {
    color: var(--clr-heading);
    font-size: 0.95rem;
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--clr-accent);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero .container,
    .about-grid,
    .why-us-content,
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .hero-image-wrapper {
        margin-top: 2rem;
        transform: none;
    }
    .hero-image-wrapper:hover {
        transform: scale(1.02);
    }
}

@media (max-width: 768px) {
    .nav-links, .navbar .btn { display: none; }
    
    .mobile-menu-btn { display: block; }
    
    /* Mobile Menu Active State */
    .navbar.menu-open { background: var(--clr-white); }
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--clr-white);
        padding: 2rem;
        border-bottom: 1px solid var(--clr-border);
        box-shadow: var(--shadow-md);
    }
    
    .hero h1 { font-size: 2.2rem; }
    
    .form-row { grid-template-columns: 1fr; gap: 0; }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}