/* CSS Variables for Core Systems */
:root {
    /* Color System */
    --clr-primary: #FF7A00; /* Saffron Orange */
    --clr-secondary: #0B0B0B; /* Deep Black */
    --clr-bg: #F7F5F2; /* Soft Warm Off-white */
    --clr-accent: #8A8A8A; /* Muted Grey */
    --clr-white: #FFFFFF;
    
    /* Typography System */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Spacing System (8pt base) */
    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-6: 48px;
    --space-8: 64px;
    --space-12: 96px;
    --space-16: 128px;

    /* Shadow System */
    --shadow-soft: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 20px 60px -10px rgba(0, 0, 0, 0.12);
    --shadow-color-glow: 0 10px 30px -5px rgba(255, 122, 0, 0.3);

    /* Border Radius System */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 9999px;

    /* Transition System */
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
    font-family: var(--font-main);
    background-color: var(--clr-bg);
    color: var(--clr-secondary);
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography Hierarchy */
h1 {
    font-size: clamp(48px, 6vw, 64px);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

h2 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

h3 {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 500;
    line-height: 1.3;
}

p {
    font-size: clamp(14px, 2vw, 16px);
    font-weight: 300;
    color: var(--clr-accent);
    line-height: 1.6;
}

.highlight {
    color: var(--clr-primary);
}

.saffron-dot {
    color: var(--clr-primary);
}

.mt-4 {
    margin-top: var(--space-4);
}

/* Background Pattern (Subtle Indian Dot-Grid/Mandala Vibe) */
.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    opacity: 0.4;
    background-image: radial-gradient(var(--clr-accent) 1px, transparent 1px);
    background-size: 32px 32px;
    background-position: center;
}

/* Container & Grid */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-3);
}

.section-spacing {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

/* Header Config */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--space-3) 0;
    z-index: 100;
    transition: background-color var(--transition-smooth), backdrop-filter var(--transition-smooth);
}

.header.scrolled {
    background-color: rgba(247, 245, 242, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 20px;
    font-weight: 600;
    color: var(--clr-secondary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.nav-link {
    text-decoration: none;
    color: var(--clr-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--clr-primary);
}

/* Button System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 15px;
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1.5px solid transparent;
}

.btn-primary {
    background-color: var(--clr-secondary);
    color: var(--clr-white);
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background-color: #000;
}

.btn-secondary {
    background-color: transparent;
    color: var(--clr-secondary);
    border-color: var(--clr-secondary);
}

.btn-secondary:hover {
    background-color: var(--clr-secondary);
    color: var(--clr-white);
}

.btn-secondary-sm {
    padding: 8px 16px;
    border-radius: var(--radius-full);
    border: 1px solid var(--clr-secondary);
    font-size: 14px;
}

.btn-secondary-sm:hover {
    background-color: var(--clr-secondary);
    color: var(--clr-white) !important;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 18px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--space-8);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
}

.hero-decorative-word {
    display: block;
    font-size: clamp(32px, 4vw, 42px);
    color: var(--clr-primary);
    margin-bottom: var(--space-2);
    font-weight: 400; /* Subtle aesthetic */
    opacity: 0.8;
}

/* Utilities */
.p-4 { padding: 24px; }
.p-5 { padding: 40px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; }
.mb-5 { margin-bottom: 32px; }
.mb-6 { margin-bottom: 48px; }
.block { display: block; }

.hero-subtitle {
    font-size: clamp(18px, 2.5vw, 22px);
    font-weight: 500;
    color: var(--clr-secondary);
    margin-top: var(--space-2);
    margin-bottom: var(--space-3);
}

.hero-support-text {
    font-size: 16px;
    max-width: 480px;
    margin-bottom: var(--space-4);
}

.hero-actions {
    display: flex;
    gap: var(--space-2);
}

.hero-right {
    position: relative;
    display: flex;
    justify-content: flex-end;
}

.profile-card {
    position: relative;
    width: 100%;
    max-width: 460px;
    aspect-ratio: 4/5;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.profile-card:hover .profile-img {
    transform: scale(1.03);
}

.floating-om {
    position: absolute;
    bottom: -15px;
    left: -15px;
    width: 80px;
    height: 80px;
    background-color: var(--clr-primary);
    color: var(--clr-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    line-height: 1;
    box-shadow: var(--shadow-color-glow);
    animation: float 6s ease-in-out infinite;
    z-index: 2;
    border: 6px solid var(--clr-bg);
}

/* Keyframes */
@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(5deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

/* Projects Section */
.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--clr-primary);
    margin-bottom: var(--space-2);
}

.section-header {
    margin-bottom: var(--space-8);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

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

.project-image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-3);
    box-shadow: var(--shadow-soft);
    background-color: var(--clr-white);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.03);
    transition: background-color var(--transition-smooth);
}

.project-card:hover .project-image-wrapper {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.project-card:hover .project-img {
    transform: scale(1.05);
}

.project-card:hover .project-overlay {
    background-color: rgba(0,0,0,0);
}

.project-tags {
    display: flex;
    gap: var(--space-1);
    margin-bottom: var(--space-1);
}

.tag {
    font-size: 12px;
    padding: 4px 10px;
    background-color: rgba(11, 11, 11, 0.05);
    border-radius: var(--radius-sm);
    color: var(--clr-accent);
    font-weight: 500;
}

.project-title {
    font-size: 20px;
    margin-bottom: var(--space-1);
}

.project-desc {
    font-size: 14px;
    margin-bottom: var(--space-2);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--clr-secondary);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
}

.read-more .arrow {
    transition: transform var(--transition-fast);
}

.project-card:hover .read-more .arrow {
    transform: translateX(4px);
    color: var(--clr-primary);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
}

.about-left {
    max-width: 500px;
}

.body-text {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: var(--space-2);
    color: var(--clr-secondary);
    font-weight: 300;
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 16px;
    font-weight: 500;
}

.about-right {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 1/1;
    box-shadow: var(--shadow-soft);
}

.about-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Contact Section */
.contact-container {
    text-align: center;
    max-width: 600px;
    padding: var(--space-16) 0;
}

.contact-subtitle {
    font-size: 18px;
    margin-top: var(--space-2);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-6);
}

.social-link {
    color: var(--clr-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    position: relative;
}

.social-link::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 1.5px;
    bottom: -2px;
    left: 0;
    background-color: var(--clr-primary);
    transform-origin: bottom right;
    transition: transform var(--transition-fast);
}

.social-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* Footer */
.footer {
    border-top: 1px solid rgba(0,0,0,0.05);
    padding: var(--space-4) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: var(--clr-accent);
}

/* Animation Utilities Engine (JS will add 'visible') */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Responsive Adjustments */
@media (max-width: 992px) {
    .hero-container, .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-right {
        justify-content: center;
        margin-top: var(--space-4);
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-support-text {
        margin: 0 auto var(--space-4);
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-left {
        margin: 0 auto;
    }
    .skills-list {
        align-items: center;
    }
}

@media (max-width: 640px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .header-container {
        flex-direction: column;
        gap: var(--space-2);
    }
    
    .hero {
        padding-top: var(--space-12);
    }

    .hero-decorative-word {
        font-size: 28px;
    }

    .floating-om {
        width: 60px;
        height: 60px;
        font-size: 24px;
        bottom: -10px;
        left: -10px;
        border-width: 4px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-1);
        text-align: center;
    }
}