:root {
    --bg-color: #0b0f19;
    --bg-color-rgb: 11, 15, 25;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #6366f1; /* Indigo */
    --accent-secondary: #a855f7; /* Purple */
    --card-bg: rgba(30, 41, 59, 0.4);
    --card-border: rgba(255, 255, 255, 0.08);
    --nav-bg: rgba(11, 15, 25, 0.8);
    --tag-bg: rgba(255, 255, 255, 0.05);
    --shadow-color: rgba(0, 0, 0, 0.3);

    --header-height: 5rem;
    --transition-theme: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

[data-theme="light"] {
    --bg-color: #f5f7fb;
    --bg-color-rgb: 245, 247, 251;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-primary: #4f46e5;
    --accent-secondary: #9333ea;
    --card-bg: rgba(255, 255, 255, 0.65);
    --card-border: rgba(15, 23, 42, 0.08);
    --nav-bg: rgba(245, 247, 251, 0.8);
    --tag-bg: rgba(15, 23, 42, 0.04);
    --shadow-color: rgba(15, 23, 42, 0.12);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
    width: 100%;
}

body {
    overflow-x: hidden;
    position: relative;
    width: 100%;
    transition: var(--transition-theme);
}

h1, h2, h3, h4, .logo {
    font-family: 'Outfit', sans-serif;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* Background Blobs */
.blob {
    position: absolute;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.5;
    animation: float 10s ease-in-out infinite alternate;
    pointer-events: none;
}

[data-theme="light"] .blob {
    opacity: 0.35;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-primary) 0%, transparent 70%);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent-secondary) 0%, transparent 70%);
    top: 50%;
    right: -100px;
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Utilities */
.section {
    padding: clamp(3.5rem, 8vw, 6.25rem) 5%;
    max-width: 1200px;
    margin: 0 auto;
    scroll-margin-top: 90px;
}

.section-title {
    font-size: clamp(1.9rem, 4vw, 2.5rem);
    margin-bottom: 2rem;
    text-align: center;
    background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, var(--transition-theme);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-color);
    border-color: var(--accent-primary);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--card-border);
    transition: padding 0.3s ease, var(--transition-theme);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text-primary);
}

.logo span {
    color: var(--accent-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 1001;
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    background: var(--tag-bg);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.12);
}

.theme-toggle .icon-moon {
    display: none;
}

[data-theme="light"] .theme-toggle .icon-sun {
    display: none;
}

[data-theme="light"] .theme-toggle .icon-moon {
    display: inline-block;
}

.menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
    width: 2.75rem;
    height: 2.75rem;
    align-items: center;
    justify-content: center;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 120px;
    gap: 2rem;
}

.hero-content {
    flex: 1;
}

.greeting {
    font-size: 1.2rem;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.name {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.tagline {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    transition: all 0.3s ease;
    cursor: pointer;
    min-height: 44px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #fff;
    border: none;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

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

.btn-outline:hover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.image-wrapper {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
    padding: 10px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--card-border);
}

.image-wrapper::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    z-index: -1;
    animation: spin 10s linear infinite;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

.placeholder-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--text-secondary);
    transition: var(--transition-theme);
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    margin-bottom: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.contact-info {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-primary);
}

.info-item i {
    color: var(--accent-primary);
    font-size: 1.2rem;
}

/* Skills */
.skills-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.skill-category-header i {
    font-size: 1.3rem;
    color: var(--accent-primary);
}

.skill-category-header h3 {
    font-size: 1.15rem;
    color: var(--text-primary);
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    background: var(--tag-bg);
    border: 1px solid var(--card-border);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    cursor: default;
    color: var(--text-primary);
}

.skill-tag:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--accent-primary);
    transform: translateY(-3px);
    color: var(--accent-primary);
}

/* Experience */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--card-border);
    top: 0;
    bottom: 0;
    left: 20px;
}

.timeline-item {
    position: relative;
    padding-left: 50px;
    margin-bottom: 2rem;
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-primary);
    left: 13px;
    top: 24px;
    box-shadow: 0 0 10px var(--accent-primary);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--accent-secondary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.timeline-title {
    font-size: 1.4rem;
    margin-bottom: 0.3rem;
}

.timeline-company {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 400;
}

.timeline-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.project-header h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
}

.project-duration {
    font-size: 0.8rem;
    background: rgba(168, 85, 247, 0.15);
    color: var(--accent-secondary);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    white-space: nowrap;
}

.project-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: var(--accent-secondary);
}

/* Education */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.edu-card {
    text-align: center;
}

.edu-year {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    font-family: 'Outfit', sans-serif;
}

.edu-card h3 {
    margin-bottom: 0.5rem;
}

.edu-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.grade {
    display: inline-block;
    background: var(--tag-bg);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Footer */
.footer {
    border-top: 1px solid var(--card-border);
    padding: 2rem 5%;
    margin-top: 4rem;
    background: rgba(var(--bg-color-rgb), 0.4);
    transition: var(--transition-theme);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-logo {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
}

.footer-logo span {
    color: var(--accent-primary);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--card-bg);
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid var(--card-border);
}

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

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

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 150px;
    }

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

    .tagline {
        margin: 0 auto 2.5rem;
    }

    .contact-info {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 75%;
        max-width: 300px;
        background: var(--bg-color);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: right 0.4s ease, var(--transition-theme);
        border-left: 1px solid var(--card-border);
        gap: 2.5rem;
    }

    .nav-links a {
        font-size: 1.1rem;
    }

    .nav-links.active {
        right: 0;
    }

    .image-wrapper {
        width: 240px;
        height: 240px;
    }

    .contact-info {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .section {
        padding: 3rem 6%;
    }

    .hero {
        padding-top: 150px;
    }

    .glass-card {
        padding: 1.5rem;
    }

    .timeline-item {
        padding-left: 44px;
    }

    .blob {
        filter: blur(60px);
        width: 220px !important;
        height: 220px !important;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 1rem 5%;
    }

    .nav-actions {
        gap: 0.5rem;
    }

    .hero-btns {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-btns .btn {
        justify-content: center;
    }

    .project-header {
        flex-direction: column;
    }

    .skill-category-header h3 {
        font-size: 1rem;
    }

    .skill-tag {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}

/* Floating Buttons */
.whatsapp-float,
.gmail-float {
    position: fixed;
    width: 56px;
    height: 56px;
    right: max(24px, env(safe-area-inset-right));
    border-radius: 50%;
    color: #FFF;
    text-align: center;
    font-size: 26px;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.whatsapp-float {
    bottom: max(28px, env(safe-area-inset-bottom));
    background-color: #25d366;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    animation: bounce 2s infinite;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    transform: scale(1.1);
    color: #FFF;
    animation: none;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
    40% {transform: translateY(-10px);}
    60% {transform: translateY(-5px);}
}

.gmail-float {
    bottom: max(96px, calc(env(safe-area-inset-bottom) + 68px));
    background-color: #ea4335;
    box-shadow: 0 4px 15px rgba(234, 67, 53, 0.4);
}

.gmail-float:hover {
    background-color: #c5221f;
    transform: scale(1.1);
    color: #FFF;
}

@media (max-width: 768px) {
    .whatsapp-float,
    .gmail-float {
        width: 48px;
        height: 48px;
        font-size: 22px;
        right: max(16px, env(safe-area-inset-right));
    }

    .whatsapp-float {
        bottom: max(16px, env(safe-area-inset-bottom));
    }

    .gmail-float {
        bottom: max(72px, calc(env(safe-area-inset-bottom) + 56px));
    }
}