/* ============================================
   ClientCode AI Innovation - Multi-Page Styles
   Updated to match original single-page theme
============================================ */

/* CSS Variables matching original theme */
:root {
    /* Primary Colors from original */
    --primary-blue: #0072BC;
    --primary-green: #00A651;
    --primary-yellow: #FDB913;
    --primary-red: #E31E24;
    
    /* Neutral Colors */
    --dark-text: #1a1a1a;
    --light-text: #555;
    --bg-light: #f5f5f5;
    --bg-white: #ffffff;
    --border-color: #ddd;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* Layout */
    --container-width: 1200px;
    --container-padding: 20px;
    --border-radius: 5px;
    --border-radius-lg: 10px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark-text);
    background-color: var(--bg-light);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

h1 {
    font-size: var(--font-size-5xl);
    color: white; /* For hero section */
}

h2 {
    font-size: var(--font-size-4xl);
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 4px solid var(--primary-yellow);
}

h3 {
    font-size: var(--font-size-2xl);
    color: var(--primary-blue);
}

p {
    margin-bottom: var(--spacing-lg);
    color: var(--light-text);
}

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

a:hover {
    color: var(--primary-green);
}

/* Header Styles */
.site-header {
    background: var(--bg-white);
    padding: 15px 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: auto;
    height: auto;
    position: relative;
    flex-shrink: 0;
}

.logo img {
    display: block;
    height: 80px;
    width: auto;
}

.logo-circle {
    display: none;
}

.company-name {
    font-size: 1.5em;
    font-weight: bold;
}

.company-name span:first-child {
    color: var(--primary-red);
}

.company-name span:last-child {
    color: var(--dark-text);
}

.company-name-small {
    font-size: 0.6em;
    color: var(--light-text);
    font-weight: normal;
    margin-top: 2px;
}

/* Navigation */
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

.main-nav a {
    color: var(--dark-text);
    font-weight: 500;
    font-size: 1.1em;
    padding: var(--spacing-sm) 0;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-blue);
    transition: width var(--transition-normal);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-blue);
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--dark-text);
    position: relative;
    transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--dark-text);
    left: 0;
    transition: transform var(--transition-normal);
}

.hamburger::before {
    top: -6px;
}

.hamburger::after {
    bottom: -6px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: white;
    padding: 120px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero h1 {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-xl);
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.tagline {
    font-size: var(--font-size-lg);
    font-style: italic;
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

/* About Section */
.about-section {
    padding: 10px 0;
    background-color: var(--bg-white);
}

.about-section p {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
    font-size: var(--font-size-lg);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: white;
    padding: 30px;
    border-radius: var(--border-radius-lg);
    text-align: center;
    border-top: 5px solid var(--primary-yellow);
    transition: transform var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-md);
}

/* Projects Section */
.projects-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

#searchInput, #categoryFilter {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    transition: border-color var(--transition-fast);
}

#searchInput:focus,
#categoryFilter:focus {
    outline: none;
    border-color: var(--primary-blue);
}

/* Project Gallery */
.project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--bg-white);
    border-left: 5px solid var(--primary-blue);
    padding: 25px;
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--primary-yellow);
}

.project-content h3 {
    color: var(--primary-green);
    font-size: 1.5em;
    margin-bottom: 15px;
}

.project-category {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: white;
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

/* Technology Stack Section */
.tech-page {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.tech-category {
    background: var(--bg-white);
    padding: 30px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--primary-yellow);
    transition: transform var(--transition-normal);
}

.tech-category:hover {
    transform: translateY(-5px);
}

.tech-category h3 {
    color: var(--primary-blue);
    font-size: 1.6em;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--primary-green);
}

.tech-category ul {
    list-style: none;
}

.tech-category li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    color: var(--light-text);
}

.tech-category li:before {
    content: "▸ ";
    color: var(--primary-yellow);
    font-weight: bold;
    margin-right: 5px;
}

.tech-category li:last-child {
    border-bottom: none;
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-blue) 100%);
    color: white;
}

.contact-section h2,
.contact-section h3 {
    color: white;
}

.contact-section h2 {
    border-bottom-color: var(--primary-yellow);
}

.contact-section > .container > p {
    text-align: center;
    max-width: 600px;
    margin: -20px auto 40px;
    opacity: 0.9;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.contact-address,
.contact-details {
    text-align: left;
}

.contact-address h3,
.contact-details h3 {
    font-size: 1.5em;
    padding-bottom: 10px;
    margin-bottom: 15px;
    border-bottom: 2px solid var(--primary-yellow);
}

.contact-address p,
.contact-details p {
    margin-bottom: 15px;
    line-height: 1.7;
    font-size: 1.1em;
    opacity: 0.9;
    color: white;
}

.contact-details a {
    color: white;
    text-decoration: none;
    opacity: 1;
    font-weight: 500;
}

.contact-details a:hover {
    text-decoration: underline;
}

/* New: Contact Form Styles */
.contact-form {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.contact-form h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xl);
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--dark-text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

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

/* Footer */
.site-footer {
    background: var(--dark-text);
    color: white;
    text-align: center;
    padding: 20px 0;
}

.site-footer a {
    color: rgba(255, 255, 255, 0.8);
}

.site-footer a:hover {
    color: white;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-xl); }
.mb-2 { margin-bottom: var(--spacing-xl); }
.mt-3 { margin-top: var(--spacing-2xl); }
.mb-3 { margin-bottom: var(--spacing-2xl); }
.bg-white { background-color: var(--bg-white); }
.bg-light { background-color: var(--bg-light); }

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
    }
    
    .header-container {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .main-nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-xl);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--transition-normal), opacity var(--transition-normal);
    }
    
    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-toggle.active .hamburger {
        background-color: transparent;
    }
    
    .nav-toggle.active .hamburger::before {
        transform: rotate(45deg);
        top: 0;
    }
    
    .nav-toggle.active .hamburger::after {
        transform: rotate(-45deg);
        bottom: 0;
    }
    
    .hero {
        padding: 80px 20px;
    }
    
    .stats-grid,
    .tech-categories,
    .project-gallery,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .project-filters {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --container-padding: 15px;
    }
    
    .hero {
        padding: 60px 15px;
    }
    
    .about-section,
    .projects-section,
    .tech-page,
    .contact-section {
        padding: 60px 0;
    }
}

/* Expertise Cards Styling */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 3rem;
}

.expertise-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid rgba(253, 185, 19, 0.2);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.expertise-card:hover {
    border-color: var(--primary-yellow);
    box-shadow: 0 8px 32px rgba(253, 185, 19, 0.15);
    transform: translateY(-5px);
}

.expertise-card h3 {
    font-size: 1.4em;
    margin-bottom: 1.5rem;
    color: var(--primary-yellow);
    border-bottom: 2px solid var(--primary-yellow);
    padding-bottom: 1rem;
    font-weight: 600;
}

.expertise-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: block;
    text-align: left;
}

.expertise-list li {
    margin-bottom: 1.2rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
    color: black;
    font-size: 0.95em;
    display: block;
    visibility: visible;
    opacity: 1;
    text-align: left;
}

.expertise-list li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--primary-yellow);
    font-weight: bold;
    display: inline;
}

.expertise-list li strong {
    color: blue;
    font-weight: 600;
    display: inline;
}