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

:root {
    /* Cores principais */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #06b6d4;
    --accent: #ec4899;
    --dark-900: #0f0f23;
    --dark-800: #1a1a2e;
    --dark-700: #16213e;
    --dark-600: #0f3460;
    --gray-100: #f8fafc;
    --gray-300: #cbd5e1;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-hover: linear-gradient(135deg, #5b21b6 0%, #7c3aed 100%);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark-900);
    color: var(--gray-100);
    line-height: 1.7;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

/* ==========================================================================
   CURSOR CUSTOM
   ========================================================================== */
.cursor,
.cursor2 {
    position: fixed;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease-out;
}

.cursor {
    width: 20px;
    height: 20px;
    background: var(--primary);
    mix-blend-mode: difference;
}

.cursor2 {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary);
    opacity: 0.5;
}

/* ==========================================================================
   NAVBAR
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(15, 15, 35, 0.98);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--gray-100);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: var(--white);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: 0.3s;
}

/* ==========================================================================
   CONTAINER
   ========================================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(2px 2px at 20px 30px, #ffffff15, transparent),
        radial-gradient(2px 2px at 40px 70px, var(--primary), transparent),
        radial-gradient(1px 1px at 90px 40px, var(--secondary), transparent),
        radial-gradient(1px 1px at 130px 80px, #ffffff20, transparent);
    background-size: 200px 100px;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.1) 1px, transparent 1px);
    background-size: 40px 40px;
}

.hero-content {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    display: block;
    font-size: 1.2rem;
    color: var(--gray-300);
    font-weight: 400;
    margin-bottom: 2rem;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-300);
}

/* ==========================================================================
   SECTION HEADER
   ========================================================================== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray-300);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about {
    padding: 8rem 0;
    background: var(--dark-800);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h3 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-features {
    list-style: none;
    margin-top: 2rem;
}

.about-features li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.about-features i {
    color: var(--primary);
    width: 20px;
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stack-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.stack-item:hover {
    transform: translateY(-8px);
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
}

.stack-item i {
    font-size: 2.5rem;
    color: var(--primary);
}

/* ==========================================================================
   PROJECTS SECTION
   ========================================================================== */
.projects {
    padding: 8rem 0;
}

.filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    background: transparent;
    color: var(--gray-100);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
    gap: 2rem;
}

.project-card {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.project-card:hover {
    transform: translateY(-20px) scale(1.02);
    border-color: var(--primary);
    box-shadow: 0 30px 60px rgba(99, 102, 241, 0.3);
}

.project-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project-card:hover .project-image {
    transform: scale(1.1);
}

.project-content {
    padding: 2rem;
}

.project-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.project-description {
    color: var(--gray-300);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-100);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.project-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */
.services {
    padding: 8rem 0;
    background: var(--dark-800);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
    gap: 2rem;
}

.service-card {
    padding: 2.5rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-12px);
    border-color: var(--primary);
    box-shadow: 0 25px 50px rgba(99, 102, 241, 0.2);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--gray-300);
    margin-bottom: 1.25rem;
}

.service-cta {
    color: var(--secondary);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.service-price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    margin: 1rem 0;
}

/* ==========================================================================
   TESTIMONIALS
   ========================================================================== */
.testimonials {
    padding: 8rem 0;
}

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

.testimonial {
    display: none;
    text-align: center;
    padding: 3rem 2rem;
}

.testimonial.active {
    display: block;
}

.testimonial-content p {
    font-size: 1.3rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary);
}

.testimonial-author strong {
    display: block;
    font-size: 1.1rem;
}

/* ==========================================================================
   CTA SECTION
   ========================================================================== */
.cta {
    padding: 8rem 0;
    background: var(--dark-700);
    text-align: center;
}

.cta-content h2 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
}

.cta-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 3rem;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    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: left 0.5s;
}

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

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--gray-100);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.btn-sm {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
}

.btn-lg {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

/* ==========================================================================
   WHATSAPP FLOAT
   ========================================================================== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: #25D366;
    color: white;
    min-width: 60px;
    min-height: 60px;
    padding: 0 1.25rem;
    border-radius: 999px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    text-decoration: none;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
    font-size: 1.5rem;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 15px 40px rgba(37, 211, 102, 0.6);
}

.whatsapp-float span {
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
    opacity: 1;
    transform: translateX(0);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    padding: 3rem 0 1rem;
    background: var(--dark-900);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-300);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 768px) {
    html {
        scroll-padding-top: 68px;
    }

    .cursor,
    .cursor2 {
        display: none;
    }

    .nav-container {
        padding: 0.85rem 1.25rem;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 64px;
        flex-direction: column;
        align-items: center;
        background: rgba(15, 15, 35, 0.98);
        backdrop-filter: blur(18px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        gap: 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav-link {
        display: block;
        padding: 0.55rem 1rem;
    }

    .hero {
        min-height: auto;
        padding: 7rem 0 4rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        padding: 0 1.25rem;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
        font-size: 1.05rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.75rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.8rem;
        line-height: 1.35;
    }

    .about,
    .projects,
    .services,
    .testimonials,
    .cta {
        padding: 5rem 0;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }

    .about-text h3 {
        font-size: clamp(1.8rem, 7vw, 2.3rem);
    }

    .about-features li {
        align-items: flex-start;
        justify-content: flex-start;
        text-align: left;
    }

    .filters {
        justify-content: flex-start;
        gap: 0.75rem;
        margin-bottom: 2.5rem;
        overflow-x: auto;
        padding-bottom: 0.4rem;
        flex-wrap: nowrap;
        scrollbar-width: none;
    }

    .filters::-webkit-scrollbar {
        display: none;
    }

    .filter-btn {
        flex: 0 0 auto;
        padding: 0.7rem 1rem;
        white-space: nowrap;
    }

    .project-card:hover,
    .service-card:hover {
        transform: translateY(-6px);
    }

    .project-content,
    .service-card {
        padding: 1.5rem;
    }

    .project-image {
        height: 190px;
    }

    .testimonial {
        padding: 1.5rem 0;
    }

    .testimonial-content p {
        font-size: 1.05rem;
    }

    .cta-content h2 {
        font-size: clamp(2rem, 9vw, 3rem);
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .cta-buttons .btn {
        width: 100%;
    }

    .whatsapp-float {
        min-width: 56px;
        min-height: 56px;
        width: 56px;
        height: 56px;
        padding: 0;
        border-radius: 50%;
        right: 1rem;
        bottom: 1rem;
    }

    .whatsapp-float span {
        display: none;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-links {
        gap: 1rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.1rem;
    }

    .hero-title {
        font-size: clamp(2.15rem, 12vw, 2.8rem);
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1.25rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .stat {
        padding: 1rem;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 16px;
    }

    .section-title {
        font-size: clamp(1.85rem, 10vw, 2.4rem);
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .tech-stack {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .project-image {
        height: 170px;
    }

    .project-links,
    .project-link {
        width: 100%;
    }

    .project-link {
        justify-content: center;
    }

    .testimonial-author {
        align-items: center;
        flex-direction: column;
        text-align: center;
    }

    .btn {
        justify-content: center;
        width: 100%;
        padding: 0.95rem 1.2rem;
        text-align: center;
    }

    .btn-lg {
        padding: 1rem 1.35rem;
        font-size: 1rem;
    }

    .footer-links {
        flex-direction: column;
    }
}

@media (hover: none), (pointer: coarse) {
    .cursor,
    .cursor2 {
        display: none;
    }
}