:root,
html[data-theme="dark"] {
    /* Crimson Aura Theme Tokens (Dark by Default) */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --accent-primary: #ef4444;
    /* Crimson Red */
    --accent-glow: rgba(239, 68, 68, 0.4);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
    --nav-bg: rgba(0, 0, 0, 0.8);
    --transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

html[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f4f4f5;
    --text-primary: #09090b;
    --text-secondary: #4b5563;
    --accent-primary: #dc2626;
    --accent-glow: rgba(220, 38, 38, 0.2);
    --glass-bg: rgba(0, 0, 0, 0.03);
    --glass-border: rgba(0, 0, 0, 0.1);
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
    --nav-bg: rgba(255, 255, 255, 0.9);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.5s ease;
}

h1,
h2,
h3,
.logo {
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

.container {
    max-width: 80%;
    margin-left: 10%;
    margin-right: 10%;
    padding: 0;
}

.section {
    padding: 80px 0;
    min-height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    z-index: 1;
}

/* Aura Background */
.aura-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    filter: blur(80px);
    opacity: 0.5;
    animation: pulse 10s infinite alternate;
}

.glow-1 {
    top: -10%;
    right: -10%;
}

.glow-2 {
    bottom: -10%;
    left: -10%;
    animation-delay: -5s;
}

@keyframes pulse {
    0% {
        transform: translate(0, 0) scale(1);
    }

    100% {
        transform: translate(50px, 50px) scale(1.1);
    }
}

/* Typography Helpers */
.highlight {
    color: var(--accent-primary);
    text-shadow: 0 0 15px var(--accent-glow);
}

.text-gradient {
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 70px;
    background: var(--nav-bg);
    backdrop-filter: blur(15px);
    display: flex;
    align-items: center;
    z-index: 1000;
    border-bottom: 1px solid var(--glass-border);
}

.navbar .container {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-size: 1.2rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

/* Theme Switcher */
.theme-switcher {
    position: relative;
    margin-left: 2rem;
}

#theme-toggle {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

#theme-toggle:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.theme-menu {
    position: absolute;
    top: 50px;
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 8px;
    box-shadow: var(--card-shadow);
    display: none;
    width: 140px;
    z-index: 1002;
}

.theme-menu.active {
    display: block;
}

.theme-menu button {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 0.8rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.theme-menu button:hover {
    background: var(--glass-bg);
    color: var(--accent-primary);
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

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

/* Sections Header */
.section-header {
    margin-bottom: 4rem;
}

.section-subtitle {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-primary);
    letter-spacing: 3px;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-subtitle::before {
    content: '';
    width: 20px;
    height: 1px;
    background: var(--accent-primary);
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
}

/* Intro Combined Section */
.intro-section {
    padding-top: 140px;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: start;
}

.intro-content h1 {
    font-size: 4.5rem;
    line-height: 1;
    margin-bottom: 1rem;
    font-weight: 800;
}

.intro-content h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.intro-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
}

.intro-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    max-width: 110%;
    height: auto;
    filter: drop-shadow(0 0 20px var(--accent-glow));
}

.intro-timeline {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.section-header.mini {
    margin-bottom: 2rem;
}

.section-title.mini {
    font-size: 1.8rem;
}

.timeline.mini {
    padding-left: 2rem;
}

.timeline.mini .timeline-item {
    margin-bottom: 2.5rem;
}

.timeline.mini .timeline-item h3 {
    font-size: 1.2rem;
}

/* About Section */
.about-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 3rem;
    border-radius: 20px;
    backdrop-filter: blur(5px);
}

.about-card p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.personal-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.detail-item i {
    color: var(--accent-primary);
}

/* Timeline (Education & Experience) */
.timeline {
    border-left: 2px solid var(--glass-border);
    padding-left: 2.5rem;
    margin-left: 0;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding: 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    transition: var(--transition);
}

.timeline-item:hover {
    border-color: var(--accent-primary);
    margin-left: 5px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-2.5rem - 8px);
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-primary);
    box-shadow: 0 0 15px var(--accent-primary);
    border: 2px solid var(--bg-primary);
}

.timeline-item h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.timeline-item span {
    display: inline-block;
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 20px;
}

.timeline-item p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

.timeline-item ul {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0 0;
}

.timeline-item li {
    color: var(--text-secondary);
    line-height: 1.7;
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.5rem;
}

.timeline-item li::before {
    content: '•';
    color: var(--accent-primary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Skills Marquee */
.marquee-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 1rem 0;
    /* Optional fade edges for effect */
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.marquee-track {
    display: flex;
    gap: 1.5rem;
    width: max-content;
    animation: scroll 30s linear infinite;
}

.marquee-track.reverse {
    animation-direction: reverse;
}

.marquee-container:hover .marquee-track {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        /* Assuming we double the content in JS, translate by half the total width */
        transform: translateX(-50%);
    }
}

.skill-category {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 250px;
}

.skill-tag {
    background: var(--nav-bg);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    font-size: 0.85rem;
    white-space: nowrap;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.skill-tag:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* Expertise */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

@media (max-width: 1200px) {
    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .expertise-grid {
        grid-template-columns: 1fr;
    }
}

.expertise-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 20px;
    transition: var(--transition);
}

.expertise-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
}

.expertise-card i {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

/* Contact */
.contact-card {
    text-align: left;
    max-width: 100%;
    margin: 0;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.2rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-links a:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    font-size: 0.95rem;
}

.btn-glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateY(-3px);
}

.btn-primary {
    background: var(--accent-primary);
    color: #ffffff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    background: #f87171;
    transform: translateY(-3px);
    color: #ffffff;
}

.badge {
    border: solid;
    border-radius: 15px;
    padding: 5px 10px 5px 10px;
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    margin-bottom: 20px;
}

/* Theme Switcher Overrides */
#theme-toggle {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 3.5rem;
    }

    .hero-content h2 {
        font-size: 1.8rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .nav-links {
        display: none;
    }

    .intro-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .intro-content h1 {
        font-size: 3rem;
    }

    .intro-timeline {
        padding: 1.5rem;
    }
}

.intro-image {
    display: none;
}

@media (min-width: 1024px) {
    .intro-image {
        display: block;
    }
}