/* ===== CSS Variables ===== */
:root {
    /* Colors - Warm & Professional Light Theme */
    --color-bg: #FDFCFB;
    --color-bg-alt: #F8F6F4;
    --color-bg-card: #FFFFFF;
    --color-text-primary: #2D3436;
    --color-text-secondary: #636E72;
    --color-text-muted: #B2BEC3;
    --color-accent: #E07A5F;
    --color-accent-dark: #C9644B;
    --color-accent-light: #F4A58A;
    --color-teal: #3D405B;
    --color-teal-light: #545775;
    --color-border: #E8E4E1;
    --color-shadow: rgba(45, 52, 54, 0.08);
    --color-shadow-hover: rgba(45, 52, 54, 0.15);
    
    /* Typography */
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 50%;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-max-width: 720px;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Subtle background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, var(--color-accent-light) 0%, transparent 2%),
        radial-gradient(circle at 75% 75%, var(--color-teal) 0%, transparent 1.5%);
    background-size: 60px 60px;
    opacity: 0.03;
    pointer-events: none;
    z-index: -1;
}

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

/* ===== Section Styles ===== */
section {
    margin-bottom: var(--spacing-2xl);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-teal);
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    border-radius: 2px;
}

/* ===== Hero Section ===== */
.hero {
    padding-top: var(--spacing-lg);
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.profile-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.profile-image-container {
    position: relative;
    flex-shrink: 0;
}

.profile-image-container::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
    border-radius: var(--radius-full);
    z-index: -1;
    animation: pulse-border 3s ease-in-out infinite;
}

@keyframes pulse-border {
    0%, 100% {
        opacity: 0.7;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.02);
    }
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 5px solid var(--color-bg);
    display: block;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.hero-text {
    flex: 1;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-xs);
}

.name-highlight {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}


.hero-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.bio {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

.bio.highlight {
    color: var(--color-teal);
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

.bio.highlight a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.bio.highlight a:hover {
    color: var(--color-accent-dark);
    text-decoration: underline;
}

/* ===== Button Styles ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-normal);
    margin-top: var(--spacing-sm);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-teal) 0%, var(--color-teal-light) 100%);
    color: white;
    box-shadow: 0 4px 15px var(--color-shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--color-shadow-hover);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn svg {
    width: 18px;
    height: 18px;
}

/* ===== Skills Section ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.skill-card {
    background: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 8px var(--color-shadow);
    transition: all var(--transition-normal);
}

.skill-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px var(--color-shadow-hover);
    border-color: var(--color-accent-light);
}

.skill-category {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.skill-list {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ===== Awards Section ===== */
.awards-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.award-card {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    background: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 8px var(--color-shadow);
    transition: all var(--transition-normal);
    gap: var(--spacing-md);
}

.award-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px var(--color-shadow-hover);
    border-color: var(--color-accent-light);
}

.award-info {
    flex: 1;
}

.award-badge {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 4px;
}

.award-event {
    font-size: 0.95rem;
    color: var(--color-text-primary);
}

.award-meta {
    text-align: right;
    flex-shrink: 0;
}

.award-date {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-teal);
}

.award-location {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ===== Meeting Section ===== */
.meeting-content {
    background: var(--color-bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 15px var(--color-shadow);
    text-align: center;
}

.meeting-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.05rem;
}

.btn-meeting {
    margin-top: 0;
}

/* ===== Connect Section ===== */
.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.25rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-teal);
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 2px 8px var(--color-shadow);
    transition: all var(--transition-normal);
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--color-shadow-hover);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-alt);
}

.footer p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.footer .heart {
    display: inline-block;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    :root {
        --container-max-width: 100%;
    }
    
    .container {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .profile-wrapper {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-tagline {
        font-size: 1rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .award-card {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .award-meta {
        text-align: left;
        display: flex;
        gap: var(--spacing-sm);
    }
    
    .social-links {
        justify-content: center;
    }
    
    .btn-submit {
        align-self: stretch;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .profile-image {
        width: 120px;
        height: 120px;
    }
    
    .hero-title {
        font-size: 1.3rem;
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    .bio {
        font-size: 0.95rem;
    }
    
    .social-link {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }
}

/* ===== Animation Classes ===== */
.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Staggered animation delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Focus visible for accessibility */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}