@import url('https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@700&display=swap');

:root {
    --primary-color: #0a0a0a;
    --secondary-color: #ffd700;
    --accent-color: #daa520;
    --gold-dark: #b8860b;
    --gold-light: #ffe45cd2;
    --text-light: #ffffff;
    --text-dark: #0a0a0a;
    --card-bg: #1a1a1a;
    --animation-timing: 0.3s;
}

/* Add keyframe animations */
@keyframes dataFlow {
    0% { transform: translateY(0); opacity: 0.3; }
    50% { transform: translateY(-10px); opacity: 1; }
    100% { transform: translateY(-20px); opacity: 0; }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes borderGlow {
    0% { border-color: var(--secondary-color); }
    50% { border-color: var(--gold-light); }
    100% { border-color: var(--secondary-color); }
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background: linear-gradient(135deg, #0a0a0a, #1a1a1a);
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" xmlns="http://www.w3.org/2000/svg"><rect width="20" height="20" fill="none" stroke="rgba(255,215,0,0.1)" stroke-width="1"/></svg>');
    opacity: 0.3;
    z-index: -1;
    pointer-events: none;
}

.hero-section {
    background: linear-gradient(135deg, rgba(10,10,10,0.95), rgba(26,26,26,0.95));
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    color: var(--text-light);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.hero-section h1 {
    position: relative;
    display: inline-block;
}

.hero-section h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
    animation: pulse 2s ease-in-out infinite;
}

.navbar-brand {
    font-family: 'Roboto Slab', serif; /* Use a semi-formal font */
    font-size: 18;
    font-weight: bold;
    background: linear-gradient(135deg, var(--secondary-color), var(--gold-dark));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3); /* Subtle shadow for depth */
    transition: transform 0.3s ease, text-shadow 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.1); /* Slightly enlarge on hover */
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5); /* Enhance shadow on hover */
}

.domain-section {
    padding: 80px 0;
    position: relative;
    background: linear-gradient(135deg, rgba(10,10,10,0.97), rgba(18,18,18,0.97));
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
    counter-reset: card-counter;
}

.domain-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    opacity: 0.1;
    z-index: 0;
}

.ml-section::before,
.data-section::before,
.cloud-section::before {
    background: linear-gradient(45deg, var(--accent-color), transparent);
}

.domain-card {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.1);
    border-radius: 15px;
    transition: all 0.3s ease;
    overflow: hidden;
    color: var(--text-light);
    box-shadow: 0 5px 15px rgba(0,0,0,0.4);
    position: relative;
    z-index: 1;
    counter-increment: card-counter;
}

.domain-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(45deg, 
        transparent 0%, 
        transparent 5%, 
        rgba(255,215,0,0.1) 5%, 
        rgba(255,215,0,0.1) 10%
    );
    opacity: 0;
    transform: rotate(0deg);
    transition: all var(--animation-timing) ease;
}

.domain-card::after {
    content: '0' counter(card-counter);
    position: absolute;
    right: 10px;
    bottom: 10px;
    font-family: monospace;
    color: var(--secondary-color);
    opacity: 0.2;
    font-size: 3rem;
    transition: all var(--animation-timing) ease;
}

.domain-card:hover::before {
    opacity: 0.1;
    transform: rotate(180deg);
}

.domain-card:hover::after {
    opacity: 0.4;
    transform: scale(1.2);
}

.domain-icon {
    color: var(--secondary-color);
    animation: float 3s ease-in-out infinite;
}

.ml-icon { color: var(--accent-color); }
.data-icon { color: var(--gold-dark); }
.cloud-icon { color: var(--secondary-color); }

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    background: rgba(218, 165, 32, 0.1);
    color: var(--secondary-color);
    border: 1px solid rgba(255, 215, 0, 0.2);
    backdrop-filter: blur(5px);
    transition: all var(--animation-timing) ease;
    position: relative;
    overflow: hidden;
    transform: skew(-10deg);
}

.tech-badge:hover {
    transform: skew(0deg) translateY(-2px);
    background: rgba(218, 165, 32, 0.2);
}

.tech-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 215, 0, 0.2),
        transparent
    );
    transition: var(--animation-timing);
}

.tech-badge:hover::before {
    left: 100%;
    transition: 0.5s;
}

.project-card {
    background: rgba(26, 26, 26, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.1);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transition: all var(--animation-timing) cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-light);
    position: relative;
    z-index: 1;
}

.project-card:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: var(--secondary-color);
    animation: borderGlow 2s ease-in-out infinite;
}

.project-image {
    width: 100%;
    object-fit: cover;
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.section-title {
    position: relative;
    margin-bottom: 40px;
    color: var(--secondary-color);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--gold-dark);
    box-shadow: 0 2px 4px rgba(218, 165, 32, 0.3);
}

.navbar {
    background: rgba(10, 10, 10, 0.95) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--text-dark);
    box-shadow: 0 2px 4px rgba(218, 165, 32, 0.3);
    font-weight: 500;
}

.btn-primary:hover {
    background-color: var(--gold-light);
    border-color: var(--gold-light);
    color: var(--text-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(218, 165, 32, 0.4);
}

.btn-outline-light:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--text-dark);
}

#contact {
    background: linear-gradient(135deg, rgba(10,10,10,0.95), rgba(26,26,26,0.95));
    position: relative;
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.form-control {
    background: rgba(26, 26, 26, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.2);
    color: var(--text-light) !important;
    transition: all var(--animation-timing) ease;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.form-control:focus {
    background: rgba(26, 26, 26, 0.7);
    border-color: var(--secondary-color);
    box-shadow: 0 0 10px rgba(218, 165, 32, 0.2);
    transform: translateY(-2px);
    color: var(--secondary-color) !important;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* Style for typed text */
.form-control:not(:placeholder-shown) {
    color: var(--secondary-color) !important;
    text-shadow: 0 0 5px rgba(218, 165, 32, 0.1);
}

/* Textarea specific styles */
textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.social-icon {
    color: var(--secondary-color);
    transition: all 0.3s ease;
    font-size: 1.5rem;
    position: relative;
}

.leetcode-icon,
.hackerrank-icon,
.credly-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: brightness(0) saturate(100%) invert(83%) sepia(38%) saturate(1960%) hue-rotate(359deg) brightness(105%) contrast(94%); /* Matches --secondary-color */
    transition: all var(--animation-timing) ease;
}

.social-icon::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--secondary-color) 0%, transparent 70%);
    opacity: 0;
    transform: scale(0);
    transition: all var(--animation-timing) ease;
}

.social-icon:hover::before {
    opacity: 0.2;
    transform: scale(1.5);
}

.social-icon:hover {
    color: var(--gold-light);
    transform: translateY(-2px);
}

.social-icon:hover .leetcode-icon,
.social-icon:hover .hackerrank-icon,
.social-icon:hover .credly-icon {
    color: var(--gold-light);
   transform: translateY(-2px);
}

.credly-icon{
    width: 24px;
   height: 24px;
   color: var(--secondary-color);
   transition: all var(--animation-timing) ease;
}

footer {
    background: linear-gradient(135deg, rgba(10,10,10,0.95), rgba(26,26,26,0.95));
    border-top: 1px solid rgba(255, 215, 0, 0.1);
    position: relative;
    z-index: 1;
}

.text-secondary-color {
    color: var(--secondary-color) !important;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--primary-color);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(
        var(--gold-dark),
        var(--secondary-color),
        var(--gold-dark)
    );
    background-size: 100% 200%;
    animation: gradientShift 3s ease infinite;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Glass morphism effect for all cards */
.glass-effect {
    background: rgba(26, 26, 26, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.1);
}

/* Data Analysis Section animations */
.data-section .domain-card {
    position: relative;
    overflow: hidden;
}

.data-section .domain-card::before {
    display: none;
}

/* Cloud Architecture animations */
.cloud-section .domain-card::before {
    display: none;
}

/* Project card specific animations */
.project-card .tech-stack {
    transform: translateY(100%);
    opacity: 0;
    transition: all var(--animation-timing) ease;
}

.project-card:hover .tech-stack {
    transform: translateY(0);
    opacity: 1;
}

.project-card .project-image {
    transform: scale(1);
    transition: all var(--animation-timing) ease;
}

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

/* Button animations */
.btn {
    transition: all var(--animation-timing) cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: var(--animation-timing);
}

.btn:hover::before {
    left: 100%;
    transition: 0.5s;
}

/* Add floating animation to domain icons */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.domain-icon {
    animation: float 3s ease-in-out infinite;
}

/* ML & Analytics Showcase Styles */
.showcase-section {
    background: linear-gradient(135deg, rgba(10,10,10,0.97), rgba(18,18,18,0.97));
    position: relative;
    overflow: hidden;
}

.showcase-card {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.1);
    border-radius: 15px;
    transition: all 0.3s ease;
    color: var(--text-light);
    box-shadow: 0 5px 15px rgba(0,0,0,0.4);
    height: 100%;
}

/* ML Pipeline Visualization */
.ml-pipeline-viz {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    position: relative;
}

.pipeline-step {
    background: rgba(26, 26, 26, 0.5);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid rgba(255, 215, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.pipeline-step i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.pipeline-step:hover {
    transform: translateY(-5px);
    border-color: var(--secondary-color);
}

.pipeline-arrow {
    color: var(--secondary-color);
    font-size: 1.5rem;
    animation: pulse 2s infinite;
}

.step-details {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 15, 15, 0.95);
    border-radius: 8px;
    padding: 10px;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    pointer-events: none;
    z-index: 10;
}

.pipeline-step:hover .step-details {
    opacity: 1;
    transform: translateY(5px);
}

/* Data Flow Visualization */
.data-flow-viz {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    flex-wrap: wrap;
}

.data-node {
    background: rgba(26, 26, 26, 0.5);
    padding: 15px;
    border-radius: 50%;
    width: 80px;
    height: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 215, 0, 0.1);
    transition: all 0.3s ease;
}

.data-node i {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.data-node span {
    font-size: 0.8rem;
    text-align: center;
}

.data-flow-arrow {
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
    margin: 0 10px;
    position: relative;
    animation: flowPulse 2s infinite;
}

@keyframes flowPulse {
    0% { opacity: 0.3; }
    50% { opacity: 1; }
    100% { opacity: 0.3; }
}

/* Analysis Metrics */
.analysis-metrics {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 215, 0, 0.1);
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 1.5rem;
    color: var(--secondary-color);
    font-weight: bold;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-light);
    opacity: 0.8;
}

/* Animation for metrics */
@keyframes countUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.metric {
    animation: countUp 1s ease-out forwards;
}

/* Interactive hover effects */
.data-node:hover {
    transform: scale(1.1);
    border-color: var(--secondary-color);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.2);
}

.pipeline-step:hover {
    background: rgba(26, 26, 26, 0.8);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.2);
}

/* Contact Form Alerts */
.alert {
    margin-bottom: 20px;
    border: none;
    border-left: 4px solid;
    background: rgba(26, 26, 26, 0.5);
    backdrop-filter: blur(10px);
}

.alert-success {
    border-left-color: #198754;
    color: #198754;
}

.alert-danger {
    border-left-color: #dc3545;
    color: #dc3545;
}

.alert .btn-close {
    filter: invert(1);
}

.social-icons {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}
/* Tech Stack Section */
tech-stack-section {
    background: linear-gradient(135deg, rgba(10,10,10,0.97), rgba(18,18,18,0.97));
    position: relative;
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}
 .stack-category {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.1);
    border-radius: 15px;
    padding: 2rem;
    height: 100%;
    transition: all var(--animation-timing) ease;
    position: relative;
    overflow: hidden;
 }
 .stack-category::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(45deg, 
        transparent 0%, 
        transparent 5%, 
        rgba(255,215,0,0.1) 5%, 
        rgba(255,215,0,0.1) 10%
    );
    opacity: 0;
    transform: rotate(0deg);
    transition: all var(--animation-timing) ease;
 }
 .stack-category:hover::before {
    opacity: 0.1;
    transform: rotate(180deg);
 }
 .stack-category:hover {
    transform: translateY(-5px);
    border-color: var(--secondary-color);
    box-shadow: 0 5px 15px rgba(0,0,0,0.4);
 }
 .tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    gap: 1.5rem;
    justify-items: center;
    position: relative;
    z-index: 1;
 }
 .tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--animation-timing) ease;
    position: relative;
 }
 .tech-item img {
    width: 40px;
    height: 40px;
    transition: all var(--animation-timing) ease;
    filter: grayscale(20%) brightness(90%);
 }
 .tech-item span {
    font-size: 0.8rem;
    color: var(--text-light);
    opacity: 0.8;
    text-align: center;
    transition: all var(--animation-timing) ease;
 }
 .tech-item:hover {
    transform: translateY(-5px);
 }
 .tech-item:hover img {
    filter: drop-shadow(0 0 8px rgba(218, 165, 32, 0.4)) grayscale(0%) brightness(100%);
 }
 .tech-item:hover span {
    color: var(--secondary-color);
    opacity: 1;
    text-shadow: 0 0 10px rgba(218, 165, 32, 0.3);
 }
 .stack-category h3 {
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 0.5rem;
 }
 .stack-category h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, var(--secondary-color), transparent);
 }
 certifications-section {
    background: linear-gradient(135deg, rgba(10,10,10,0.97), rgba(18,18,18,0.97));
    position: relative;
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
 }
 .cert-card {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.1);
    border-radius: 15px;
    padding: 2rem;
    height: 100%;
    transition: all var(--animation-timing) ease;
    position: relative;
 overflow: hidden;
 }
 .cert-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(45deg, 
        transparent 0%, 
        transparent 5%, 
        rgba(255,215,0,0.1) 5%, 
        rgba(255,215,0,0.1) 10%
    );
    opacity: 0;
    transform: rotate(0deg);
    transition: all var(--animation-timing) ease;
 }
 .cert-card:hover::before {
    opacity: 0.1;
    transform: rotate(180deg);
 }
 .cert-card:hover {
    transform: translateY(-5px);
    border-color: var(--secondary-color);
    box-shadow: 0 5px 15px rgba(0,0,0,0.4);
 }
 .cert-logo {
    width: 100px;
    height: 100px;
    margin-bottom: 1.5rem;
 }
 .cert-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: grayscale(20%) brightness(90%);
    transition: all var(--animation-timing) ease;
 }
 .cert-card:hover .cert-logo img {
    filter: drop-shadow(0 0 8px rgba(218, 165, 32, 0.4)) grayscale(0%) brightness(100%);
 }
 .cert-content h3 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    transition: all var(--animation-timing) ease;
 }
 .cert-card:hover .cert-content h3 {
    color: var(--secondary-color);
 }
 .cert-issuer {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
 }
 .cert-date {
    color: var(--text-light);
    opacity: 0.7;
    font-size: 0.8rem;
    margin-bottom: 1rem;
 }
 .cert-verify {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all var(--animation-timing) ease;
 }
 .cert-verify i {
    color: var(--secondary-color);
 }
 .cert-verify:hover {
    color: var(--secondary-color);
    text-decoration: none;
 }
 /* Additional Certification Styles */
alt-cert {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
 .cert-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    background: rgba(255, 215, 0, 0.1);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--animation-timing) ease;
 }
 .alt-cert:hover .cert-icon {
    transform: rotate(360deg);
    background: rgba(255, 215, 0, 0.2);
 }
 .cert-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
 }
 .skill-tag {
    background: rgba(255, 215, 0, 0.1);
    color: var(--secondary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    transition: all var(--animation-timing) ease;
 }
 .alt-cert:hover .skill-tag {
    background: rgba(255, 215, 0, 0.2);
 }