/* ============================================
   Jane Eze - Portfolio Website
   Colors: Nude & Pastel Palette
   ============================================ */

:root {
    /* Nude & Pastel Color Palette */
    --color-bg: #FAF8F5;
    --color-bg-alt: #F5F0EB;
    --color-text: #3D3D3D;
    --color-text-light: #6B6B6B;
    --color-primary: #D4A574;
    --color-primary-dark: #B8935F;
    --color-secondary: #E8D5C4;
    --color-accent: #C9B8A8;
    --color-white: #FFFFFF;
    --color-border: #E5DDD5;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    
    /* Container */
    --container-width: 1200px;
    --container-padding: 2rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.5rem); }

p {
    margin-bottom: var(--space-sm);
}

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

/* Header */
.header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--space-md);
}

.nav-link {
    color: var(--color-text-light);
    font-weight: 400;
    font-size: 0.95rem;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
}

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

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

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

.hamburger {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-text);
    position: relative;
    transition: background-color 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 2px;
    background-color: var(--color-text);
    transition: transform 0.3s ease;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

/* Hero Section */
.hero {
    padding: var(--space-xl) 0;
    background-color: var(--color-bg);
}

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

.hero-label {
    color: var(--color-primary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    margin-bottom: var(--space-sm);
}

.hero-title {
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
    max-width: 90%;
}

.hero-buttons {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-img {
    width: 100%;
    max-width: 450px;
    margin: 0 auto;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    text-align: center;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-bg-alt);
    color: var(--color-text);
}

.btn-small {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

.btn-full {
    width: 100%;
}

/* Featured Work */
.featured-work {
    padding: var(--space-xl) 0;
    background-color: var(--color-bg-alt);
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.work-card {
    background-color: var(--color-white);
    padding: var(--space-md);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.work-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}

.work-category {
    display: inline-block;
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-xs);
}

.work-title {
    margin-bottom: var(--space-xs);
}

.work-excerpt {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: var(--space-sm);
}

.work-link {
    font-weight: 500;
    color: var(--color-primary);
}

/* Expertise */
.expertise {
    padding: var(--space-xl) 0;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.expertise-item {
    text-align: center;
    padding: var(--space-md);
}

.expertise-item h3 {
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

/* Page Header */
.page-header {
    padding: var(--space-lg) 0;
    background-color: var(--color-bg-alt);
    text-align: center;
}

.page-title {
    margin-bottom: var(--space-xs);
}

.page-subtitle {
    color: var(--color-text-light);
    font-size: 1.1rem;
}

/* About Page */
.about-content {
    padding: var(--space-xl) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-lg);
    align-items: start;
}

.about-image {
    position: sticky;
    top: 100px;
}

.about-img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.about-text h2 {
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.about-text .lead {
    font-size: 1.2rem;
    color: var(--color-text);
    font-weight: 400;
    margin-bottom: var(--space-md);
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.highlight {
    text-align: center;
}

.highlight-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-primary);
    font-weight: 500;
}

.highlight-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Philosophy */
.philosophy {
    padding: var(--space-xl) 0;
    background-color: var(--color-bg-alt);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.philosophy-item {
    background-color: var(--color-white);
    padding: var(--space-md);
    border-radius: 8px;
}

.philosophy-item h3 {
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

/* Services */
.services-list {
    padding: var(--space-xl) 0;
}

.service-item {
    background-color: var(--color-white);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.service-tag {
    background-color: var(--color-secondary);
    color: var(--color-text);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.service-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
    font-size: 1.05rem;
}

.service-features {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xs);
}

.service-features li {
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-light);
}

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

/* Courses */
.courses {
    padding: var(--space-xl) 0;
    background-color: var(--color-bg-alt);
}

.section-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-lg);
    color: var(--color-text-light);
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.course-card {
    background-color: var(--color-white);
    padding: var(--space-md);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
}

.course-header {
    margin-bottom: var(--space-sm);
}

.course-level {
    display: inline-block;
    background-color: var(--color-secondary);
    color: var(--color-text);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-xs);
}

.course-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-sm);
    flex-grow: 1;
}

.course-topics {
    list-style: none;
    margin-bottom: var(--space-md);
}

.course-topics li {
    padding: 0.25rem 0;
    padding-left: 1rem;
    position: relative;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.course-topics li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-border);
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* CTA Section */
.cta {
    padding: var(--space-xl) 0;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

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

.cta p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

/* Articles Page */
.content-filters {
    padding: var(--space-md) 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 60px;
    z-index: 50;
}

.filter-buttons {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    background-color: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.content-grid {
    padding: var(--space-xl) 0;
}

.articles-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-md);
}

.content-card {
    background-color: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.content-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}

.content-image {
    height: 200px;
    overflow: hidden;
}

.content-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.content-placeholder.healthcare { background: linear-gradient(135deg, #E8D5C4 0%, #D4A574 100%); }
.content-placeholder.dashboard { background: linear-gradient(135deg, #C9B8A8 0%, #A89080 100%); }
.content-placeholder.presentation { background: linear-gradient(135deg, #F5E6D3 0%, #E8D5C4 100%); }
.content-placeholder.analysis { background: linear-gradient(135deg, #D4C4B0 0%, #B8A090 100%); }
.content-placeholder.strategy { background: linear-gradient(135deg, #E5DDD5 0%, #C9B8A8 100%); }

.content-body {
    padding: var(--space-md);
}

.content-meta {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-xs);
    font-size: 0.8rem;
}

.content-type {
    color: var(--color-primary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.content-date {
    color: var(--color-text-light);
}

.content-title {
    margin-bottom: var(--space-xs);
    font-size: 1.25rem;
}

.content-excerpt {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: var(--space-sm);
}

.content-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: var(--space-sm);
}

.content-tags span {
    background-color: var(--color-bg-alt);
    color: var(--color-text-light);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
}

.content-link {
    font-weight: 500;
    font-size: 0.95rem;
}

/* Contact Page */
.contact-content {
    padding: var(--space-xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-lg);
}

.contact-info h2 {
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.contact-lead {
    font-size: 1.1rem;
    margin-bottom: var(--space-lg);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-method h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
}

.contact-method a {
    font-size: 1.1rem;
    color: var(--color-text);
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-links a {
    color: var(--color-primary);
}

.contact-form-wrapper {
    background-color: var(--color-white);
    padding: var(--space-lg);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-text);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    background-color: var(--color-bg);
    transition: border-color 0.3s ease;
}

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

.form-note {
    text-align: center;
    margin-top: var(--space-sm);
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Footer */
.footer {
    background-color: var(--color-bg-alt);
    padding: var(--space-md) 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.footer-text {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--space-md);
}

.footer-links a {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-list {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background-color: var(--color-bg);
        flex-direction: column;
        padding: var(--space-md);
        gap: var(--space-sm);
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-list.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-description {
        max-width: 100%;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-img {
        max-width: 300px;
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        position: relative;
        top: 0;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .about-highlights {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }
    
    .service-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .articles-list {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}