/* ============================================
   PORTFOLIO - Dark Mode com Efeitos Neon
   ============================================ */

/* FONTS */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --neon-blue: #00f3ff;
    --neon-pink: #ff00e4;
    --neon-green: #00ff88;
    --neon-purple: #b400ff;
    --neon-yellow: #ffdd00;
    --neon-red: #ff3355;
    --dark-bg: #0a0a0f;
    --dark-card: #12121a;
    --dark-card-hover: #1a1a2e;
    --dark-surface: #0d0d15;
    --text-primary: #e0e0ff;
    --text-secondary: #8888aa;
    --text-muted: #555577;
    --border-color: #1a1a3e;
    --glow-blue: 0 0 10px rgba(0, 243, 255, 0.3), 0 0 20px rgba(0, 243, 255, 0.1);
    --glow-pink: 0 0 10px rgba(255, 0, 228, 0.3), 0 0 20px rgba(255, 0, 228, 0.1);
    --glow-green: 0 0 10px rgba(0, 255, 136, 0.3), 0 0 20px rgba(0, 255, 136, 0.1);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ANIMATED BACKGROUND */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 10% 20%, rgba(0, 243, 255, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 80%, rgba(255, 0, 228, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 255, 136, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

a {
    text-decoration: none;
    color: var(--neon-blue);
    transition: var(--transition);
}

a:hover {
    color: var(--neon-pink);
    text-shadow: var(--glow-pink);
}

/* SCROLLBAR */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--neon-blue);
}

/* ============================================
   TYPOGRAPHY & NEON EFFECTS
   ============================================ */

.neon-text {
    font-family: 'Orbitron', monospace;
    font-weight: 700;
}

.neon-blue {
    color: var(--neon-blue);
    text-shadow: var(--glow-blue);
}

.neon-pink {
    color: var(--neon-pink);
    text-shadow: var(--glow-pink);
}

.neon-green {
    color: var(--neon-green);
    text-shadow: var(--glow-green);
}

.neon-border {
    border: 1px solid var(--neon-blue);
    box-shadow: var(--glow-blue), inset 0 0 30px rgba(0, 243, 255, 0.05);
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
    background: transparent;
}

header.scrolled {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 243, 255, 0.1);
    padding: 10px 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.logo span {
    -webkit-text-fill-color: var(--neon-blue);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-blue);
    box-shadow: var(--glow-blue);
    transition: var(--transition);
}

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

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 100px 20px 60px;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid var(--neon-green);
    border-radius: 50px;
    color: var(--neon-green);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 30px;
    animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 5px rgba(0, 255, 136, 0.3); }
    50% { box-shadow: 0 0 20px rgba(0, 255, 136, 0.6), 0 0 40px rgba(0, 255, 136, 0.2); }
}

.hero h1 {
    font-family: 'Orbitron', monospace;
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 35px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: 'Rajdhani', sans-serif;
}

.btn-primary {
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    color: #fff;
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 0 40px rgba(0, 243, 255, 0.6);
    transform: translateY(-2px);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--neon-blue);
    border: 2px solid var(--neon-blue);
    box-shadow: var(--glow-blue);
}

.btn-secondary:hover {
    background: rgba(0, 243, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 243, 255, 0.4);
    color: var(--neon-blue);
}

/* Floating particles */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--neon-blue);
    border-radius: 50%;
    animation: float linear infinite;
    opacity: 0.5;
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% { opacity: 0.5; }
    90% { opacity: 0.5; }
    100% {
        transform: translateY(-100px) rotate(720deg);
        opacity: 0;
    }
}

/* ============================================
   SECTION STYLES
   ============================================ */

.section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
    border-radius: 2px;
    box-shadow: var(--glow-blue);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 20px auto 0;
}

/* ============================================
   SERVICES / CARDS WITH GRAPHICS
   ============================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 35px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--neon-blue);
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), var(--glow-blue);
    background: var(--dark-card-hover);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: inline-block;
}

.service-card h3 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

/* Mini chart / stat bar */
.stat-bar {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 15px;
}

.stat-bar-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    min-width: 80px;
    font-weight: 500;
}

.stat-bar-track {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.stat-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 1.5s ease;
    width: 0;
}

.stat-bar-fill.blue { background: linear-gradient(90deg, var(--neon-blue), #0066ff); box-shadow: 0 0 10px rgba(0, 243, 255, 0.5); }
.stat-bar-fill.pink { background: linear-gradient(90deg, var(--neon-pink), #9900ff); box-shadow: 0 0 10px rgba(255, 0, 228, 0.5); }
.stat-bar-fill.green { background: linear-gradient(90deg, var(--neon-green), #00cc66); box-shadow: 0 0 10px rgba(0, 255, 136, 0.5); }

.stat-bar-value {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    min-width: 40px;
    text-align: right;
    font-family: 'Orbitron', monospace;
}

/* Service features list */
.service-features {
    list-style: none;
    margin: 20px 0;
}

.service-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.service-features li::before {
    content: '▸';
    color: var(--neon-blue);
    font-weight: bold;
}

/* ============================================
   PORTFOLIO GALLERY
   ============================================ */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.portfolio-item {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.portfolio-item:hover {
    border-color: var(--neon-pink);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4), var(--glow-pink);
}

.portfolio-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    background: var(--dark-surface);
}

.portfolio-info {
    padding: 20px;
}

.portfolio-info h4 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.portfolio-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.portfolio-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 10px;
    font-family: 'Orbitron', monospace;
}

/* Upload form */
.upload-section {
    background: var(--dark-card);
    border: 2px dashed var(--border-color);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 40px;
    text-align: center;
    transition: var(--transition);
}

.upload-section:hover {
    border-color: var(--neon-blue);
    box-shadow: var(--glow-blue);
}

.upload-section.dragover {
    border-color: var(--neon-green);
    background: rgba(0, 255, 136, 0.05);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.6;
}

.upload-section h3 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.upload-section p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.upload-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    background: var(--dark-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--neon-blue);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.15);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-group input[type="file"] {
    padding: 10px;
    cursor: pointer;
}

.form-group input[type="file"]::file-selector-button {
    padding: 8px 16px;
    border: 1px solid var(--neon-blue);
    border-radius: 8px;
    background: transparent;
    color: var(--neon-blue);
    cursor: pointer;
    font-family: 'Rajdhani', sans-serif;
    font-weight: 600;
    transition: var(--transition);
    margin-right: 15px;
}

.form-group input[type="file"]::file-selector-button:hover {
    background: rgba(0, 243, 255, 0.1);
    box-shadow: var(--glow-blue);
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    border: none;
    border-radius: 12px;
    color: #fff;
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.3);
}

.btn-submit:hover {
    box-shadow: 0 0 40px rgba(0, 243, 255, 0.6);
    transform: translateY(-2px);
}

.btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   TESTIMONIALS / SLIDES
   ============================================ */

.testimonials-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonials-slider {
    overflow: hidden;
    border-radius: 20px;
}

.testimonials-track {
    display: flex;
    transition: transform 0.6s ease;
}

.testimonial-card {
    min-width: 100%;
    padding: 10px;
}

.testimonial-content {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
    position: relative;
}

.testimonial-content::before {
    content: '"';
    position: absolute;
    top: 15px;
    left: 25px;
    font-size: 5rem;
    color: var(--neon-blue);
    opacity: 0.15;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.8;
    margin-bottom: 25px;
    padding-top: 15px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testimonial-avatar {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--neon-blue);
    box-shadow: var(--glow-blue);
}

.testimonial-info h4 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
}

.testimonial-info span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.testimonial-stars {
    color: var(--neon-yellow);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

/* Slider controls */
.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 30px;
}

.slider-btn {
    width: 48px;
    height: 48px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    background: var(--dark-card);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    border-color: var(--neon-blue);
    box-shadow: var(--glow-blue);
    color: var(--neon-blue);
}

.slider-dots {
    display: flex;
    gap: 8px;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: var(--neon-blue);
    box-shadow: var(--glow-blue);
    width: 30px;
    border-radius: 5px;
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-info {
    padding: 30px;
}

.contact-info h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 1.05rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
}

.contact-item:hover {
    border-color: var(--neon-blue);
    box-shadow: var(--glow-blue);
}

.contact-item-icon {
    font-size: 1.5rem;
    min-width: 40px;
    text-align: center;
}

.contact-item-text strong {
    display: block;
    font-family: 'Rajdhani', sans-serif;
    color: var(--neon-blue);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 3px;
}

.contact-item-text span {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.contact-form {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
}

.contact-form h3 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 25px;
    text-align: center;
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* Form success/error messages */
.form-message {
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: none;
    font-weight: 500;
}

.form-message.success {
    display: block;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--neon-green);
    color: var(--neon-green);
}

.form-message.error {
    display: block;
    background: rgba(255, 51, 85, 0.1);
    border: 1px solid var(--neon-red);
    color: var(--neon-red);
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    background: var(--dark-card);
    border-top: 1px solid var(--border-color);
    padding: 50px 20px 30px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--neon-blue);
}

.footer-col p,
.footer-col a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 2;
    display: block;
}

.footer-col a:hover {
    color: var(--neon-pink);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.social-link {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-link:hover {
    border-color: var(--neon-blue);
    color: var(--neon-blue);
    box-shadow: var(--glow-blue);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom .neon-text {
    font-size: 0.7rem;
    letter-spacing: 2px;
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */

.toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 16px 24px;
    border-radius: 12px;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 0.9rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
}

.toast.success { border-color: var(--neon-green); }
.toast.error { border-color: var(--neon-red); }
.toast.info { border-color: var(--neon-blue); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ============================================
   LOADING SPINNER
   ============================================ */

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--neon-blue);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

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

/* ============================================
   EMPTY STATE
   ============================================ */

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.3;
}

.empty-state h3 {
    font-family: 'Rajdhani', sans-serif;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 992px) {
    .hero h1 { font-size: 2.5rem; }
    .contact-container { grid-template-columns: 1fr; }
    .section-header h2 { font-size: 2rem; }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 80px 30px 30px;
        gap: 15px;
        border-left: 1px solid var(--border-color);
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
    }

    .nav-links.open { display: flex; }

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

    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    .section { padding: 60px 15px; }
    .section-header h2 { font-size: 1.6rem; }

    .services-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
    .contact-form .form-row { grid-template-columns: 1fr; }

    .upload-section { padding: 25px; }
    .testimonial-content { padding: 25px; }
    .contact-form { padding: 25px; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.6rem; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
    .portfolio-grid { grid-template-columns: 1fr; }
}