/* Pinterest-like Portfolio Theme */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #e60023;
    --secondary-color: #111111;
    --text-color: #333333;
    --light-gray: #f7f7f7;
    --medium-gray: #e9e9e9;
    --dark-gray: #767676;
    --white: #ffffff;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.25);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-gray);
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 0 20px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 0;
}

nav h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

nav h1 a {
    color: inherit;
    text-decoration: none;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: var(--transition);
}

.hamburger:hover {
    background-color: var(--light-gray);
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 2px 0;
    transition: var(--transition);
    border-radius: 2px;
}

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

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

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

nav ul,
.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

nav ul li a,
.nav-menu li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 24px;
    transition: var(--transition);
    position: relative;
}

nav ul li a:hover,
.nav-menu li a:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

/* Main Content */
main {
    margin-top: 100px; /* Increased to account for sticky navbar */
    padding: 20px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* Section spacing to account for sticky navbar */
section {
    scroll-margin-top: 100px; /* Ensures proper scrolling offset */
}

/* Pinterest-style Cards Container */
.cards-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

/* Card Styles */
.card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

/* Hero Card */
.hero-card {
    background: linear-gradient(135deg, var(--primary-color), #ff6b6b);
    color: var(--white);
    text-align: center;
    padding: 48px 24px;
    margin-bottom: 32px;
}

.hero-card h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.hero-card h2 {
    font-size: 1.5rem;
    font-weight: 400;
    opacity: 0.9;
    margin-bottom: 20px;
}

.hero-card p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-buttons a {
    background-color: var(--white);
    color: var(--primary-color);
    padding: 12px 24px;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.hero-buttons a:hover {
    background-color: var(--light-gray);
    transform: translateY(-2px);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 32px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--dark-gray);
}

/* Experience Cards */
.experience-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.experience-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.experience-card > p {
    color: var(--dark-gray);
    margin-bottom: 16px;
}

.experience-card ul {
    list-style: none;
    padding-left: 0;
}

.experience-card ul li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    color: var(--text-color);
}

.experience-card ul li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.experience-card ul li strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Skills Card */
.skills-card dl {
    display: grid;
    gap: 20px;
}

.skills-card dt {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.skills-card dt::before {
    content: '▶';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-size: 0.8rem;
    top: 4px;
}

.skills-card dd {
    color: var(--text-color);
    margin-left: 20px;
    padding: 8px 0;
    border-bottom: 1px solid var(--medium-gray);
}

/* Education Cards */
.education-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.education-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.education-card p {
    color: var(--dark-gray);
    margin-bottom: 8px;
}

/* Contact Card */
.contact-card {
    background: linear-gradient(135deg, var(--secondary-color), #333);
    color: var(--white);
    text-align: center;
}

.contact-card h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}

.contact-card p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 24px;
}

.contact-card a {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 14px 28px;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.contact-card a:hover {
    background-color: #cc001f;
    transform: translateY(-2px);
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: var(--white);
    text-align: center;
    padding: 24px;
    margin-top: 40px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    nav ul,
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 84px; /* Adjusted for proper navbar height */
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        gap: 0;
        padding: 20px 0;
        z-index: 999;
    }
    
    nav ul.active,
    .nav-menu.active {
        left: 0;
    }
    
    nav ul li,
    .nav-menu li {
        margin: 8px 0;
    }
    
    nav ul li a,
    .nav-menu li a {
        padding: 12px 20px;
        display: block;
        border-radius: 0;
    }
    
    nav ul li a:hover,
    .nav-menu li a:hover {
        background-color: var(--light-gray);
        color: var(--primary-color);
    }
    
    main {
        margin-top: 100px; /* Consistent with desktop */
        padding: 16px;
    }
    
    .hero-card {
        padding: 32px 20px;
    }
    
    .hero-card h1 {
        font-size: 2.5rem;
    }
    
    .hero-card h2 {
        font-size: 1.3rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons a {
        width: 200px;
        text-align: center;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .card {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .hamburger {
        display: flex;
    }
    
    nav ul {
        top: 80px; /* Adjusted for smaller screens */
    }
    
    .hero-card h1 {
        font-size: 2rem;
    }
    
    .hero-card h2 {
        font-size: 1.1rem;
    }
    
    .hero-card p {
        font-size: 1rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .card {
        padding: 16px;
    }
    
    .experience-card h3 {
        font-size: 1.3rem;
    }
    
    .skills-card dt {
        font-size: 1.1rem;
    }
}

/* Focus styles for accessibility */
a:focus, button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.hamburger:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}