/* CSS Variables for Theme */
:root {
    --bg-dark: #0a0a0f;
    --bg-glass: rgba(25, 25, 35, 0.6);
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --accent: #4deeea;
    --accent-hover: #74ee15;
    --accent-secondary: #f000ff;
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-primary: 'Outfit', sans-serif;
    --transition: all 0.3s ease;
}

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

html, body {
    overflow-x: hidden;
    max-width: 100%;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 3D Canvas */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
}

/* Main Layout */
.main-wrapper {
    position: relative;
    z-index: 1;
    overflow-x: hidden;
}

.section-padding {
    padding: 100px 5%;
}

.section-header {
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    text-transform: uppercase;
}

.section-header .accent {
    color: var(--accent);
}

.section-header .sub {
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--text-secondary);
    text-transform: none;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

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

.hero-content h1 {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 10px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content .subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 5px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 1px;
    transition: var(--transition);
    cursor: pointer;
}

.primary-btn {
    background: var(--text-primary);
    color: var(--bg-dark);
    border: 2px solid var(--text-primary);
}

.primary-btn:hover {
    background: transparent;
    color: var(--text-primary);
}

.primary-btn.outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--glass-border);
}

.primary-btn.outline:hover {
    background: var(--accent);
    color: var(--bg-dark);
    border-color: var(--accent);
}

/* Scroll Down */
.scroll-down {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.bounce {
    animation: bounce 2s infinite;
}

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

/* Info Bar */
.info-bar {
    display: flex;
    justify-content: space-around;
    padding: 30px;
    margin: -50px 5% 0;
    z-index: 10;
}

.info-item h5 {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
    letter-spacing: 1px;
}

.info-item p {
    font-size: 1rem;
    font-weight: 500;
}

/* About Section */
.about-content {
    display: flex;
    gap: 40px;
    padding: 60px 5%;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    border-radius: 0;
    border-left: none;
    border-right: none;
}

.about-image {
    flex: 0 0 300px;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--bg-dark), var(--accent-secondary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: rgba(255,255,255,0.2);
}

.about-text {
    flex: 1;
}

.highlight {
    color: var(--accent);
    font-weight: 600;
}

.skills-list {
    list-style-type: none;
    margin-top: 15px;
}

.skills-list li {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.tag {
    background: rgba(255,255,255,0.05);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--glass-border);
}

/* Quote */
.quote-section {
    padding: 80px 5%;
    text-align: center;
}

.quote-content {
    padding: 50px;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.quote-icon {
    font-size: 3rem;
    color: var(--accent);
    opacity: 0.2;
    position: absolute;
    top: 20px;
    left: 20px;
}

blockquote {
    font-size: 1.5rem;
    font-style: italic;
    margin-bottom: 20px;
}

cite {
    color: var(--accent);
    font-weight: 600;
}

/* Services */
.section-subtitle {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

@media (min-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: var(--bg-glass);
    border: 1px solid var(--glass-border);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    height: 100%;
}

.service-card:hover {
    border-color: var(--accent);
}

.card-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Statistics */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
    padding: 80px 5%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
}

.stat-item h3 {
    font-size: 4rem;
    font-weight: 900;
    color: var(--accent);
    margin-bottom: 10px;
}

/* Resume Timeline */
.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    background: var(--glass-border);
    transform: translateX(-50%);
}

.timeline-label {
    background: var(--text-primary);
    color: var(--bg-dark);
    padding: 10px 20px;
    border-radius: 30px;
    display: inline-block;
    font-weight: 700;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    margin: 40px 0;
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: 50px;
}

.timeline-item.right {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 50%;
}

.timeline-content {
    width: 80%;
    padding: 30px;
    margin: 0 40px;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 20px;
    height: 20px;
    background: var(--bg-dark);
    border: 4px solid var(--accent);
    border-radius: 50%;
}

.timeline-item.left .timeline-content::before {
    right: -54px;
}

.timeline-item.right .timeline-content::before {
    left: -54px;
}

.timeline-date {
    position: absolute;
    top: 20px;
    font-weight: 700;
    color: var(--accent);
}

.timeline-item.left .timeline-date {
    right: -120px;
}

.timeline-item.right .timeline-date {
    left: -120px;
}

.timeline-content h3 {
    margin-bottom: 5px;
}

.timeline-content h4 {
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 15px;
}

.timeline-content p {
    font-size: 0.9rem;
}

/* Skills */
.skills-grid {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.skill-circle {
    position: relative;
    width: 150px;
    height: 150px;
}

.skill-circle svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.skill-circle circle {
    fill: none;
    stroke-width: 8;
    stroke-linecap: round;
}

.skill-circle .bg {
    stroke: var(--glass-border);
}

.skill-circle .progress {
    stroke: var(--accent);
    stroke-dasharray: 283; /* 2 * pi * r (45) */
    stroke-dashoffset: 283;
    transition: stroke-dashoffset 1.5s ease;
}

.skill-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 100%;
}

.skill-text .percent {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.skill-text .name {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 20px;
    display: block;
    position: absolute;
    width: 150px;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
}

/* Portfolio */
.portfolio-filters {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.portfolio-filters button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.portfolio-filters button.active, .portfolio-filters button:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.portfolio-item {
    height: 250px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.portfolio-img-placeholder {
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-img-placeholder {
    transform: scale(1.1);
    background: rgba(255,255,255,0.1);
    color: var(--accent);
}

/* Testimonials */
.testimonial-carousel {
    max-width: 800px;
    margin: 0 auto;
    padding: 50px;
    text-align: center;
}

.testimonial-carousel i.fa-quote-left {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.testimonial-carousel p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.testimonial-carousel h4 {
    color: var(--text-secondary);
}

.carousel-controls {
    margin-top: 30px;
}

.carousel-controls button {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 10px;
    cursor: pointer;
    transition: var(--transition);
}

.carousel-controls button:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Contact */
.contact-form-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 50px;
}

.form-row {
    display: flex;
    gap: 30px;
}

.input-group {
    position: relative;
    margin-bottom: 30px;
    flex: 1;
}

input, textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--glass-border);
    padding: 10px 0;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 1rem;
    outline: none;
}

input:focus, textarea:focus {
    border-bottom-color: var(--accent);
}

label {
    position: absolute;
    top: 10px;
    left: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
    pointer-events: none;
}

input:focus ~ label, input:valid ~ label,
textarea:focus ~ label, textarea:valid ~ label {
    top: -20px;
    font-size: 0.8rem;
    color: var(--accent);
}

/* Footer */
.footer {
    background: rgba(0,0,0,0.8);
    padding: 60px 5% 30px;
    text-align: center;
}

.footer-contact h3 {
    font-size: 2rem;
    margin: 20px 0 10px;
    color: var(--accent);
}

.footer-contact p {
    color: var(--text-secondary);
}

.footer-bottom {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.back-to-top {
    color: var(--text-primary);
    background: var(--bg-glass);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.back-to-top:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Utilities */
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 3rem; }
.text-center { text-align: center; }

/* Responsive */
@media (max-width: 992px) {
    .section-padding { padding: 80px 5%; }
    .hero-content h1 { font-size: 3.5rem; }
    .about-content { flex-direction: column; }
    .timeline-container::before { left: 20px; }
    .timeline-label { left: 20px; transform: none; margin-bottom: 60px; }
    .timeline-item.left, .timeline-item.right {
        padding-left: 50px;
        padding-right: 0;
        justify-content: flex-start;
        margin-bottom: 60px;
    }
    .timeline-content { margin: 0; width: 100%; padding: 20px; }
    .timeline-item.left .timeline-content::before,
    .timeline-item.right .timeline-content::before { left: -39px; }
    .timeline-item.left .timeline-date,
    .timeline-item.right .timeline-date {
        top: -30px;
        left: 0;
        font-size: 0.9rem;
    }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; padding: 60px 5%; }
    .stat-item h3 { font-size: 3rem; }
}

@media (max-width: 768px) {
    .section-padding { padding: 60px 5%; }
    .section-header h2 { font-size: 2rem; }
    .info-bar { flex-direction: column; gap: 20px; text-align: center; padding: 20px; margin-top: -20px; }
    .form-row { flex-direction: column; gap: 0; }
    .hero-content h1 { font-size: 2.5rem; }
    .hero-content .subtitle { font-size: 1rem; letter-spacing: 2px; }
    .services-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; gap: 40px; }
    .stat-item h3 { font-size: 2.5rem; }
    .portfolio-filters { flex-wrap: wrap; justify-content: center; }
    .footer-bottom { flex-direction: column; gap: 20px; text-align: center; }
    .quote-content { padding: 30px; }
    blockquote { font-size: 1.2rem; }
    .service-card { min-height: auto; padding: 30px 20px; }
}