/* ========================================
   KUBUNI - Professional Animated Site
   ======================================== */

:root {
    --black: #0A0A0A;
    --black-light: #1A1A1A;
    --red: #E53935;
    --red-dark: #C62828;
    --white: #FFFFFF;
    --gray-light: #F5F5F5;
    --gray: #888888;
    --gray-dark: #333333;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font-body);
    background-color: var(--black);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.highlight { color: var(--red); }

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--red);
    padding: 12px 24px;
    border: 1px solid rgba(229, 57, 53, 0.3);
    border-radius: 30px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.cycle-text {
    display: inline-block;
    position: relative;
}

.dot-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.dot-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background-color: var(--red);
    border-radius: 50%;
    opacity: 0;
}

.dot-particle.animate {
    animation: dotFloat 1s ease-out forwards;
}

@keyframes dotFloat {
    0% {
        opacity: 0;
        transform: translateY(20px) scale(0);
    }
    30% {
        opacity: 1;
        transform: translateY(10px) scale(1.2);
    }
    100% {
        opacity: 0;
        transform: translateY(-30px) scale(0.5);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    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: 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary { background-color: var(--red); color: var(--white); }
.btn-primary:hover { 
    background-color: var(--red-dark); 
    transform: translateY(-3px); 
    box-shadow: 0 15px 35px rgba(229, 57, 53, 0.4); 
}
.btn-secondary { background-color: transparent; color: var(--white); border: 2px solid var(--white); }
.btn-secondary:hover { 
    background-color: var(--white); 
    color: var(--black); 
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(255, 255, 255, 0.2);
}
.btn-full { width: 100%; }

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background-color: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo { 
    display: flex; 
    align-items: center;
    transition: var(--transition);
}

.nav-logo:hover {
    transform: scale(1.05);
}

.logo-img { 
    height: 32px; 
    width: auto;
    transition: var(--transition);
}

.nav-menu { display: flex; align-items: center; gap: 40px; }

.nav-link {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--red);
    transition: var(--transition);
}

.nav-link:hover::after { width: 100%; }
.nav-link:hover { color: var(--red); }

.nav-cta { 
    background-color: var(--red); 
    color: var(--white) !important; 
    padding: 10px 24px; 
    border-radius: 4px;
    transition: var(--transition);
}

.nav-cta::after { display: none; }
.nav-cta:hover { 
    background-color: var(--red-dark); 
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(229, 57, 53, 0.4);
}

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--white);
    position: relative;
    transition: var(--transition);
}

.hamburger::before, .hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--white);
    transition: var(--transition);
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--black) 0%, var(--black-light) 50%, var(--black) 100%);
    z-index: -2;
    overflow: hidden;
}

.hero-video-container {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.hero-video-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.8) 0%, rgba(26, 26, 26, 0.7) 100%);
    pointer-events: none;
    z-index: 1;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    transform: translate(-50%, -50%);
    object-fit: cover;
    filter: grayscale(100%) brightness(0.4) contrast(1.2);
    opacity: 0;
    pointer-events: none;
    transition: opacity 1.5s ease-in-out;
}

.hero-video.active {
    opacity: 0.4;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(229, 57, 53, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulseGlow 4s ease-in-out infinite;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(229, 57, 53, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(229, 57, 53, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes pulseGlow {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.8; }
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content { 
    text-align: center; 
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--red);
    padding: 12px 24px;
    border: 1px solid rgba(229, 57, 53, 0.3);
    border-radius: 30px;
    margin-bottom: 32px;
    animation: fadeInDown 1s ease-out;
    position: relative;
    overflow: hidden;
}

.hero-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(229, 57, 53, 0.2), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    line-height: 1;
    margin-bottom: 24px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons { 
    display: flex; 
    gap: 16px; 
    justify-content: center; 
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray);
    animation: fadeIn 1s ease-out 1s both;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--red), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse { 
    0%, 100% { opacity: 1; transform: scaleY(1); } 
    50% { opacity: 0.5; transform: scaleY(0.6); } 
}

/* Floating particles */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--red);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.3; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

/* Services */
.services { 
    padding: 120px 0; 
    background-color: var(--black);
    position: relative;
}

.section-header { text-align: center; margin-bottom: 64px; }

.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

.service-card {
    background-color: var(--black-light);
    padding: 48px 32px;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--red), var(--red-dark));
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover { 
    border-color: rgba(229, 57, 53, 0.3); 
    transform: translateY(-10px); 
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.service-card:hover .service-number { 
    color: var(--red); 
    opacity: 0.1; 
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-icon { 
    width: 48px; 
    height: 48px; 
    margin-bottom: 24px;
    transition: var(--transition-smooth);
}

.service-title { 
    font-family: var(--font-heading); 
    font-size: 1.5rem; 
    font-weight: 600; 
    margin-bottom: 16px;
    transition: var(--transition);
}

.service-card:hover .service-title {
    color: var(--red);
}

.service-text { 
    color: var(--gray); 
    font-size: 0.95rem; 
    line-height: 1.7; 
}

.service-number {
    position: absolute;
    top: 24px;
    right: 24px;
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    color: var(--gray-dark);
    opacity: 0.05;
    transition: var(--transition);
}

/* Portfolio */
.portfolio { 
    padding: 120px 0; 
    background-color: var(--black-light);
    position: relative;
}

.portfolio-filters { 
    display: flex; 
    justify-content: center; 
    gap: 16px; 
    margin-bottom: 48px; 
    flex-wrap: wrap; 
}

.filter-btn {
    padding: 12px 28px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    background: transparent;
    color: var(--gray);
    border: 1px solid var(--gray-dark);
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active { 
    background-color: var(--red); 
    color: var(--white); 
    border-color: var(--red);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(229, 57, 53, 0.3);
}

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.portfolio-item { 
    position: relative; 
    aspect-ratio: 4/3; 
    border-radius: 12px; 
    overflow: hidden; 
    cursor: pointer;
    transition: var(--transition-smooth);
}

.portfolio-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--gray-dark) 0%, var(--black) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--gray);
    border: 2px dashed var(--gray-dark);
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-placeholder {
    border-color: var(--red);
    background: linear-gradient(135deg, var(--black-light) 0%, var(--black) 100%);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(to top, rgba(10, 10, 10, 0.98), transparent);
    transform: translateY(100%);
    transition: var(--transition-smooth);
}

.portfolio-item:hover .portfolio-overlay { transform: translateY(0); }

.portfolio-overlay h3 { 
    font-family: var(--font-heading); 
    font-size: 1.25rem; 
    font-weight: 600; 
    margin-bottom: 4px;
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay h3 {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-overlay p { 
    color: var(--red); 
    font-size: 0.85rem; 
    font-weight: 500;
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition) 0.1s;
}

.portfolio-item:hover .portfolio-overlay p {
    transform: translateY(0);
    opacity: 1;
}

/* Brands Carousel */
.brands {
    padding: 100px 0;
    background-color: var(--black);
    overflow: hidden;
}

.brands-track {
    overflow: hidden;
    position: relative;
}

.brands-track::before,
.brands-track::after {
    content: '';
    position: absolute;
    top: 0;
    width: 150px;
    height: 100%;
    z-index: 2;
}

.brands-track::before {
    left: 0;
    background: linear-gradient(to right, var(--black), transparent);
}

.brands-track::after {
    right: 0;
    background: linear-gradient(to left, var(--black), transparent);
}

.brands-slide {
    display: flex;
    gap: 60px;
    animation: scrollBrands 20s linear infinite;
    width: max-content;
}

.brand-item {
    flex-shrink: 0;
    width: 180px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    transition: var(--transition);
    padding: 12px 20px;
}

.brand-item img {
    max-height: 48px;
    max-width: 140px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0.4;
    transition: var(--transition);
}

.brand-item:hover img {
    opacity: 1;
}

.brand-item-lg img {
    max-height: 60px;
    max-width: 180px;
}

@keyframes scrollBrands {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* About */
.about { 
    padding: 120px 0; 
    background-color: var(--black);
    position: relative;
}

.about-content-centered {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-text { 
    color: var(--gray); 
    font-size: 1.05rem; 
    line-height: 1.8; 
    margin-bottom: 24px;
    transition: var(--transition);
}

.about-text:hover {
    color: var(--white);
}

.about-stats { 
    display: flex; 
    justify-content: center; 
    gap: 60px; 
    margin-top: 60px; 
}

.stat { 
    display: flex; 
    flex-direction: column;
    align-items: center;
    transition: var(--transition);
}

.stat:hover {
    transform: translateY(-5px);
}

.stat-circle {
    position: relative;
    width: 120px;
    height: 120px;
    margin-bottom: 16px;
}

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

.stat-circle-bg {
    fill: none;
    stroke: var(--gray-dark);
    stroke-width: 4;
}

.stat-circle-fill {
    fill: none;
    stroke: var(--red);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 283;
    stroke-dashoffset: 283;
    transition: stroke-dashoffset 1.5s ease-out;
}

.stat-number { 
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-heading); 
    font-size: 1.8rem; 
    font-weight: 700; 
    color: var(--white); 
    line-height: 1;
}

.stat-label { 
    font-size: 0.9rem; 
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

.stat:hover .stat-label {
    color: var(--white);
}

/* Contact */
.contact { 
    padding: 120px 0; 
    background-color: var(--black-light);
    position: relative;
}

.contact-centered {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.contact-text { 
    color: var(--gray); 
    font-size: 1.05rem; 
    line-height: 1.8; 
    margin-bottom: 32px;
    transition: var(--transition);
}

.contact-text:hover {
    color: var(--white);
}

.contact-form { 
    padding: 0;
    transition: var(--transition);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 18px 20px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--red);
    border-radius: 12px;
    transition: var(--transition);
}

.form-group {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}

.form-group::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(229, 57, 53, 0.8), transparent);
    transition: left 0.6s ease;
    z-index: 10;
}

.form-group:hover::before {
    left: 100%;
}

.form-group input:hover, .form-group select:hover, .form-group textarea:hover {
    border-color: rgba(229, 57, 53, 0.5);
    box-shadow: 0 0 12px rgba(229, 57, 53, 0.1);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus { 
    outline: none; 
    background-color: rgba(229, 57, 53, 0.08);
    box-shadow: 0 0 15px rgba(229, 57, 53, 0.15);
}

.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(229, 57, 53, 0.7); }
.form-group input:focus::placeholder, .form-group textarea:focus::placeholder { color: var(--red); }

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23E53935' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    cursor: pointer;
    color: var(--red);
}

.form-group select option { background-color: var(--black); color: var(--white); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* Footer */
.footer { 
    padding: 48px 0 24px; 
    background-color: var(--black); 
    border-top: 1px solid var(--gray-dark);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    align-items: center;
    gap: 32px;
    margin-bottom: 32px;
}

.footer-col {
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-logo {
    height: 32px;
    width: auto;
    transition: var(--transition);
}

.footer-logo:hover {
    transform: scale(1.05);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
    transition: var(--transition);
    border-radius: 50%;
    border: 1px solid var(--gray-dark);
}

.footer-social a:hover { 
    color: var(--red); 
    border-color: var(--red);
    transform: translateY(-3px);
}

.footer-social svg { width: 18px; height: 18px; }

.footer-contact-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-whatsapp:hover {
    color: #25D366;
}

.footer-email:hover {
    color: var(--red);
}

.footer-contact-link svg {
    width: 20px;
    height: 20px;
}

.footer-text { 
    color: var(--gray); 
    font-size: 0.85rem;
    text-align: center;
    margin: 0;
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    left: 24px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    z-index: 9998;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover { 
    transform: scale(1.15); 
    box-shadow: 0 8px 35px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg { width: 28px; height: 28px; }

@keyframes pulse { 
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4); } 
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); } 
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); } 
}

/* Chatbot */
.chatbot { position: fixed; bottom: 24px; right: 24px; z-index: 9999; }

.chatbot-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--red);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(229, 57, 53, 0.4);
    transition: var(--transition);
    animation: chatPulse 2s infinite;
}

.chatbot-toggle:hover { 
    transform: scale(1.1); 
    box-shadow: 0 8px 35px rgba(229, 57, 53, 0.5);
}

.chatbot-toggle svg { width: 24px; height: 24px; }
.chatbot-toggle .close-icon { display: none; }
.chatbot.active .chatbot-toggle .chat-icon { display: none; }
.chatbot.active .chatbot-toggle .close-icon { display: block; }

@keyframes chatPulse {
    0% { box-shadow: 0 0 0 0 rgba(229, 57, 53, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(229, 57, 53, 0); }
    100% { box-shadow: 0 0 0 0 rgba(229, 57, 53, 0); }
}

.chatbot-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 360px;
    height: 480px;
    background-color: var(--white);
    border-radius: 16px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: var(--transition-smooth);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.chatbot.active .chatbot-window { 
    opacity: 1; 
    visibility: visible; 
    transform: translateY(0) scale(1); 
}

.chatbot-header { 
    display: flex; 
    align-items: center; 
    gap: 12px; 
    padding: 16px 20px; 
    background-color: var(--red); 
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.chatbot-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: headerShimmer 3s infinite;
}

@keyframes headerShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.chatbot-avatar {
    width: 40px;
    height: 40px;
    background-color: var(--white);
    color: var(--red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    transition: var(--transition);
}

.chatbot:hover .chatbot-avatar {
    transform: rotate(10deg) scale(1.1);
}

.chatbot-info { display: flex; flex-direction: column; }
.chatbot-name { font-weight: 600; font-size: 0.9rem; }
.chatbot-status { font-size: 0.75rem; opacity: 0.9; }

.chatbot-messages { 
    flex: 1; 
    overflow-y: auto; 
    padding: 20px; 
    display: flex; 
    flex-direction: column; 
    gap: 16px; 
    background-color: var(--gray-light); 
}

.chat-message { 
    max-width: 85%; 
    padding: 12px 16px; 
    border-radius: 12px; 
    font-size: 0.9rem; 
    line-height: 1.5; 
    animation: messageIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes messageIn { 
    from { opacity: 0; transform: translateY(20px) scale(0.8); } 
    to { opacity: 1; transform: translateY(0) scale(1); } 
}

.chat-message.bot { 
    align-self: flex-start; 
    background-color: var(--white); 
    color: var(--black); 
    border: 1px solid rgba(0, 0, 0, 0.1); 
    border-bottom-left-radius: 4px; 
}

.chat-message.user { 
    align-self: flex-end; 
    background-color: var(--red); 
    color: var(--white); 
    border-bottom-right-radius: 4px; 
}

.chatbot-quick-actions { 
    display: flex; 
    gap: 8px; 
    padding: 12px 20px; 
    border-top: 1px solid rgba(0, 0, 0, 0.1); 
    overflow-x: auto; 
    background-color: var(--white); 
}

.quick-btn {
    flex-shrink: 0;
    padding: 10px 18px;
    font-family: var(--font-body);
    font-size: 0.8rem;
    background-color: var(--gray-light);
    color: var(--gray-dark);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.quick-btn:hover { 
    background-color: var(--red); 
    color: var(--white); 
    border-color: var(--red);
    transform: translateY(-2px);
}

.chatbot-input { 
    display: flex; 
    gap: 8px; 
    padding: 16px 20px; 
    border-top: 1px solid rgba(0, 0, 0, 0.1); 
    background-color: var(--white); 
}

.chatbot-input input {
    flex: 1;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    background-color: var(--gray-light);
    color: var(--black);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 24px;
    outline: none;
    transition: var(--transition);
}

.chatbot-input input:focus { 
    border-color: var(--red);
    box-shadow: 0 0 15px rgba(229, 57, 53, 0.2);
}

.chatbot-input input::placeholder { color: var(--gray); }

.chatbot-input button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--red);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.chatbot-input button:hover { 
    background-color: var(--red-dark);
    transform: scale(1.1);
}

.chatbot-input button svg { width: 18px; height: 18px; }

/* Animations */
.reveal { 
    opacity: 0; 
    transform: translateY(40px); 
    transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.23, 1, 0.32, 1); 
}

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

/* Staggered animations */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* Keyframe animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

/* Custom cursor */
* {
    cursor: none !important;
}

.cursor-follower {
    position: fixed;
    width: 12px;
    height: 12px;
    background-color: #E53935;
    border-radius: 50%;
    pointer-events: none;
    z-index: 99999;
    transition: transform 0.08s ease-out, width 0.2s, height 0.2s, background-color 0.2s;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
}

.cursor-follower.hover {
    width: 40px;
    height: 40px;
    background-color: rgba(229, 57, 53, 0.5);
    mix-blend-mode: normal;
}

/* Loading screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease-out, visibility 0.5s;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 60px;
    height: 60px;
    border: 3px solid var(--gray-dark);
    border-top-color: var(--red);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--black);
        flex-direction: column;
        justify-content: center;
        gap: 32px;
        transition: var(--transition);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-menu.active { right: 0; }
    .nav-toggle { display: block; z-index: 1001; }
    .nav-toggle.active .hamburger { background-color: transparent; }
    .nav-toggle.active .hamburger::before { top: 0; transform: rotate(45deg); }
    .nav-toggle.active .hamburger::after { top: 0; transform: rotate(-45deg); }
    .hero-title { font-size: clamp(2rem, 10vw, 3.5rem); }
    .services-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 48px; }
    .about-stats { justify-content: space-between; }
    .contact-grid { grid-template-columns: 1fr; gap: 48px; }
    .contact-form { padding: 32px 24px; }
    .chatbot-window { width: calc(100vw - 48px); right: 0; bottom: 72px; height: 420px; }
    .cursor-follower { display: none; }
}

@media (max-width: 480px) {
    .hero-buttons { flex-direction: column; width: 100%; }
    .hero-buttons .btn { width: 100%; }
    .about-stats { flex-direction: column; gap: 24px; }
    .stat { flex-direction: row; align-items: baseline; gap: 12px; }
}