/* CSS Variables - Material Design inspired colors */
:root {
    --android-green: #3DDC84;
    --android-green-dark: #2ecc71;
    --android-blue: #4285F4;
    --android-navy: #073042;
    --android-dark: #1a1a2e;
    --android-darker: #0f0f1a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --google-blue: #4285F4;
    --google-red: #EA4335;
    --google-yellow: #FBBC05;
    --google-green: #34A853;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--android-darker) 0%, var(--android-dark) 50%, var(--android-navy) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    background: transparent;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--android-green);
}

.android-icon {
    color: var(--android-green);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--android-green);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--android-green);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 100px 40px 40px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(61, 220, 132, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.greeting {
    color: var(--android-green);
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 10px;
    font-family: 'Courier New', monospace;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.2;
}

.highlight {
    color: var(--android-green);
}

.hero-text h2 {
    font-size: 2rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.tagline {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 30px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 30px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--android-green);
}

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

.hero-cta {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: var(--android-green);
    color: var(--android-dark);
}

.btn-primary:hover {
    background: var(--android-green-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(61, 220, 132, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--android-green);
    border: 2px solid var(--android-green);
}

.btn-secondary:hover {
    background: rgba(61, 220, 132, 0.1);
    transform: translateY(-2px);
}

/* Phone Mockup */
.hero-phone {
    flex-shrink: 0;
}

.phone-frame {
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #2a2a3a 0%, #1a1a2a 100%);
    border-radius: 40px;
    padding: 10px;
    box-shadow:
        0 25px 50px rgba(0, 0, 0, 0.5),
        inset 0 0 0 2px rgba(255, 255, 255, 0.1);
    position: relative;
}

.phone-notch {
    width: 120px;
    height: 25px;
    background: #1a1a2a;
    border-radius: 0 0 15px 15px;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, var(--android-navy) 0%, var(--android-dark) 100%);
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: var(--android-green);
    padding: 40px 20px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.app-title {
    font-weight: 500;
    color: var(--android-dark);
}

.app-version {
    font-size: 0.8rem;
    color: var(--android-dark);
    opacity: 0.7;
}

.app-content {
    flex: 1;
    padding: 20px;
}

.profile-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    margin-bottom: 20px;
}

.profile-avatar {
    width: 60px;
    height: 60px;
    background: var(--android-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.65rem;
    color: var(--android-dark);
}

.profile-info {
    display: flex;
    flex-direction: column;
}

.profile-name {
    font-weight: 500;
    font-size: 0.95rem;
}

.profile-role {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.app-menu {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 15px;
    border-radius: 10px;
    transition: background 0.3s ease;
    cursor: pointer;
}

.menu-item.active {
    background: rgba(61, 220, 132, 0.2);
}

.menu-icon {
    font-size: 1.2rem;
}

.app-navbar {
    display: flex;
    justify-content: space-around;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--android-green);
    border-bottom: 2px solid var(--android-green);
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(10px); }
}

/* Sections */
.section {
    padding: 100px 40px;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 2rem;
    margin-bottom: 50px;
    color: var(--text-primary);
}

.title-icon {
    font-size: 1.5rem;
}

/* About Section */
.about-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
}

.about-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 30px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: rgba(61, 220, 132, 0.1);
    border: 1px solid rgba(61, 220, 132, 0.3);
    border-radius: 30px;
    font-size: 0.95rem;
}

.highlight-icon {
    font-size: 1.2rem;
}

/* Timeline / Experience */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--android-green), var(--android-blue));
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.5s ease;
}

.timeline-item.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.timeline-marker {
    position: absolute;
    left: -36px;
    top: 0;
}

.marker-dot {
    width: 14px;
    height: 14px;
    background: var(--android-green);
    border-radius: 50%;
    border: 3px solid var(--android-dark);
}

.experience-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 30px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.experience-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(61, 220, 132, 0.1);
}

.exp-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.company-logo {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.company-logo.google {
    background: #ffffff;
    border: 1px solid #e0e0e0;
}

.company-logo.byjus {
    background: #ffffff;
    border: 1px solid #e0e0e0;
}

.company-logo.google img,
.company-logo.byjus img,
.company-logo.amazon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.company-logo.amazon {
    background: #ffffff;
    border: 1px solid #e0e0e0;
}

.exp-info h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.exp-role {
    color: var(--android-green);
    font-weight: 500;
}

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

.exp-details {
    list-style: none;
    margin-bottom: 20px;
}

.exp-details li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.exp-details li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--android-green);
    font-weight: 700;
}

.exp-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    padding: 5px 15px;
    background: rgba(61, 220, 132, 0.1);
    border: 1px solid rgba(61, 220, 132, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--android-green);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.skill-category {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 25px;
    backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.skill-category.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.category-icon {
    font-size: 1.5rem;
}

.category-header h3 {
    font-size: 1.1rem;
}

.skill-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.chip.primary {
    background: rgba(61, 220, 132, 0.15);
    border-color: rgba(61, 220, 132, 0.3);
    color: var(--android-green);
}

.chip:hover {
    transform: scale(1.05);
}

/* Achievements Section */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.achievement-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.achievement-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.achievement-card:hover {
    transform: translateY(-5px);
    border-color: var(--android-green);
    box-shadow: 0 10px 40px rgba(61, 220, 132, 0.1);
}

.achievement-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.achievement-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--android-green);
}

.achievement-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Education Section */
.education-card {
    display: flex;
    align-items: center;
    gap: 25px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 30px;
    backdrop-filter: blur(10px);
}

.edu-icon {
    font-size: 3rem;
}

.edu-info h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.edu-school {
    color: var(--android-green);
    font-weight: 500;
    margin-bottom: 5px;
}

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

/* Contact Section */
.contact {
    text-align: center;
}

.contact-intro {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 40px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 30px 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.contact-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.contact-card:hover {
    transform: translateY(-5px);
    border-color: var(--android-green);
    background: rgba(61, 220, 132, 0.05);
}

.contact-icon {
    font-size: 2rem;
}

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

.contact-value {
    font-size: 0.85rem;
    color: var(--android-green);
}

/* Footer */
.footer {
    text-align: center;
    padding: 40px 20px;
    border-top: 1px solid var(--card-border);
}

.footer p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.footer-copy {
    font-size: 0.85rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .tagline {
        margin: 0 auto 30px;
    }

    .phone-frame {
        width: 240px;
        height: 480px;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 15px 20px;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(15, 15, 26, 0.98);
        flex-direction: column;
        align-items: center;
        padding: 30px;
        gap: 20px;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

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

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

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

    .hero {
        padding: 100px 20px 40px;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-text h2 {
        font-size: 1.3rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }

    .section {
        padding: 60px 20px;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .about-card {
        padding: 25px;
    }

    .timeline {
        padding-left: 20px;
    }

    .timeline-marker {
        left: -26px;
    }

    .experience-card {
        padding: 20px;
    }

    .exp-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .education-card {
        flex-direction: column;
        text-align: center;
    }

    .hero-phone {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* Animation delays for staggered effects */
.timeline-item:nth-child(1) { transition-delay: 0.1s; }
.timeline-item:nth-child(2) { transition-delay: 0.2s; }
.timeline-item:nth-child(3) { transition-delay: 0.3s; }
.timeline-item:nth-child(4) { transition-delay: 0.4s; }

.skill-category:nth-child(1) { transition-delay: 0.1s; }
.skill-category:nth-child(2) { transition-delay: 0.15s; }
.skill-category:nth-child(3) { transition-delay: 0.2s; }
.skill-category:nth-child(4) { transition-delay: 0.25s; }
.skill-category:nth-child(5) { transition-delay: 0.3s; }

.achievement-card:nth-child(1) { transition-delay: 0.1s; }
.achievement-card:nth-child(2) { transition-delay: 0.15s; }
.achievement-card:nth-child(3) { transition-delay: 0.2s; }
.achievement-card:nth-child(4) { transition-delay: 0.25s; }
.achievement-card:nth-child(5) { transition-delay: 0.3s; }

.contact-card:nth-child(1) { transition-delay: 0.1s; }
.contact-card:nth-child(2) { transition-delay: 0.15s; }
.contact-card:nth-child(3) { transition-delay: 0.2s; }
.contact-card:nth-child(4) { transition-delay: 0.25s; }
.contact-card:nth-child(5) { transition-delay: 0.3s; }