:root {
    /* Apple-inspired Palette */
    --bg-color: #f5f5f7;
    --text-main: #1d1d1f;
    --text-secondary: #86868b;
    --accent-blue: #0071e3;
    --accent-glow: #00C7FC;
    /* Electric Blue Glow */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.8);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.05);

    /* Typography */
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

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

body {
    font-family: var(--font-stack);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    overflow-x: hidden;
}

h1,
h2,
h3 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-glow));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation */
.glass-nav {
    position: fixed;
    top: 0;
    width: 100%;

    padding: 1.2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #1d1d1f, #434344);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-links li a {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.nav-links li a:hover {
    color: var(--accent-blue);
}

.btn-primary {
    background: var(--accent-blue);
    color: white !important;
    padding: 0.6rem 1.2rem;
    border-radius: 99px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(0, 113, 227, 0.4);
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../assets/hero-bg.png') no-repeat center center/cover;
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(0, 113, 227, 0.1) 0%, transparent 70%);
    top: -20%;
    left: 20%;
    filter: blur(60px);
    animation: pulseBg 8s infinite alternate;
}

@keyframes pulseBg {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }

    100% {
        transform: scale(1.2);
        opacity: 0.8;
    }
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero-content p {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    font-weight: 300;
}

.btn-hero {
    display: inline-block;
    background: var(--text-main);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 99px;
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.btn-hero:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    background: #000;
}

.hero-social-proof {
    margin-top: 3rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Portfolio Section */
.portfolio {
    padding: 8rem 5%;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-soft);
    transition: transform 0.4s ease;
    background: #fff;
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-image {
    position: relative;
    height: 300px;
    width: 100%;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

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

.tech-tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    font-size: 0.8rem;
    margin-right: 0.5rem;
    margin-top: 0.5rem;
}

.btn-secondary {
    display: block;
    margin-top: 1rem;
    text-align: center;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.6);
    padding: 0.5rem;
    border-radius: 8px;
    font-size: 0.9rem;
}

.btn-secondary:hover {
    background: white;
    color: black;
}

/* Services Section */
.services {
    padding: 8rem 5%;
    background: var(--bg-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: 24px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.02);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.icon-3d {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    transition: transform 0.5s ease;
}

.service-card:hover .icon-3d {
    transform: scale(1.2) rotate(10deg);
}

/* Contact Section */
.contact {
    padding: 8rem 5%;
    display: flex;
    justify-content: center;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    width: 100%;
    background: white;
    padding: 4rem;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.glass-panel {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
}

.ai-chat-simulation {
    margin-top: 2rem;
    background: #f5f5f7;
    padding: 1.5rem;
    border-radius: 20px;
}

.chat-bubble {
    padding: 10px 15px;
    border-radius: 15px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    width: fit-content;
}

.chat-bubble.user {
    background: #e0e0e0;
    margin-left: auto;
    border-bottom-right-radius: 2px;
}

.chat-bubble.ai {
    background: var(--accent-blue);
    color: white;
    border-bottom-left-radius: 2px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

input,
select,
textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid #e5e5e5;
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    background: #f9f9f9;
    transition: border-color 0.3s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: white;
}

.btn-glow {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-blue), #005bb5);
    color: white;
    padding: 1rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-glow:hover {
    box-shadow: 0 0 20px rgba(0, 113, 227, 0.5);
    transform: translateY(-2px);
}

/* Animations included in CSS */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards ease-out;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pulse {
    animation: pulseBtn 2s infinite;
}

@keyframes pulseBtn {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.2);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(0, 0, 0, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

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

    .contact-container {
        grid-template-columns: 1fr;
        padding: 2rem;
    }
}
/* Enhanced Footer */
.main-footer {
    background-color: #000;
    color: #f5f5f7;
    padding: 4rem 5% 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 3rem;
}

.footer-logo {
    color: white; /* Explicit white for dark bg */
    margin-bottom: 1rem;
    display: inline-block;
}

.footer-tagline {
    color: #86868b;
    font-size: 0.9rem;
    max-width: 250px;
}

.footer-column h4 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer-links, .footer-contact {
    list-style: none;
}

.footer-links li, .footer-contact li {
    margin-bottom: 0.8rem;
}

.footer-links a, .footer-contact li {
    color: #86868b;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-blue);
}

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

.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.9rem;
    font-weight: 700;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: var(--accent-blue);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    color: #424245;
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    .main-footer {
        text-align: center;
    }
    
    .social-icons {
        justify-content: center;
    }
    
    .footer-tagline {
        margin: 0 auto;
    }
}