:root {
    --bg-main: #0a0d0a;
    --bg-alt: #0f130f;
    --bg-card: #141a14;
    --border-subtle: #1f2a1f;
    --border-accent: #2b4a2b;
    --text-primary: #d8ead8;
    --text-secondary: #9bb89b;
    --text-muted: #6a806a;
    --accent: #3fcf6a;
    --accent-soft: rgba(63, 207, 106, 0.12);
    --accent-glow: rgba(63, 207, 106, 0.3);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 76px;
}

/* ===== NAVBAR ===== */
.navbar-terminal {
    background: rgba(10, 13, 10, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1rem 0;
    transition: all 0.3s ease;
}
.navbar-terminal.scrolled {
    padding: 0.6rem 0;
    background: rgba(10, 13, 10, 0.96);
    border-bottom-color: var(--border-accent);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}
.navbar-brand {
    color: var(--text-primary) !important;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.15rem;
    letter-spacing: 0.5px;
}
.navbar-brand .brand-prompt {
    color: var(--accent);
    margin-right: 4px;
}
.navbar-brand .brand-cursor {
    display: inline-block;
    width: 8px;
    height: 18px;
    background: var(--accent);
    vertical-align: middle;
    margin-left: 3px;
    animation: blink 1.1s step-end infinite;
    border-radius: 1px;
}
@keyframes blink { 0%,100%{opacity:1;} 50%{opacity:0;} }

.navbar-terminal .nav-link {
    color: var(--text-secondary) !important;
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.2s ease;
    position: relative;
}
.navbar-terminal .nav-link:hover,
.navbar-terminal .nav-link.active {
    color: var(--accent) !important;
}
.navbar-terminal .nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.25s ease;
}
.navbar-terminal .nav-link:hover::after { width: 60%; }

.navbar-toggler {
    border: 1px solid var(--border-accent);
    padding: 0.35rem 0.6rem;
}
.navbar-toggler:focus { box-shadow: 0 0 0 3px var(--accent-soft); }
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%233fcf6a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== HERO ===== */
.hero-section {
    padding: 5rem 0 4rem;
    background: radial-gradient(ellipse at top, #101810 0%, var(--bg-main) 60%);
    position: relative;
}
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--accent);
    background: var(--accent-soft);
    border: 1px solid var(--border-accent);
    padding: 0.35rem 1rem;
    border-radius: 40px;
    margin-bottom: 1.5rem;
}
.hero-eyebrow .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}
.hero-title {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 1.2rem;
    letter-spacing: -0.02em;
}
.hero-title .accent { color: var(--accent); }
.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 580px;
    margin-bottom: 2.2rem;
}

/* Cards de serviços */
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 1.6rem 1.4rem;
    height: 100%;
    transition: all 0.28s ease;
}
.service-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--accent-soft);
}
.service-icon {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-soft);
    border: 1px solid var(--border-accent);
    border-radius: 10px;
    color: var(--accent);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}
.service-card h5 {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}
.service-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.55;
}

/* Logos de tecnologias */
.tech-strip {
    padding: 2.6rem 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    margin-top: 3.5rem;
}
.tech-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 1.6rem;
}
.tech-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2.8rem;
}
.tech-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.25s ease;
    opacity: 0.75;
}
.tech-item i {
    font-size: 1.6rem;
}
.tech-item:hover {
    color: var(--accent);
    opacity: 1;
    transform: translateY(-2px);
}
@media (max-width: 576px) {
    .tech-logos { gap: 1.5rem; }
    .tech-item { font-size: 0.82rem; }
    .tech-item i { font-size: 1.3rem; }
}

/* ===== SEÇÕES ===== */
.section { padding: 5rem 0; }
.section-alt { background: var(--bg-alt); }

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}
.section-tag {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 0.7rem;
    display: block;
}
.section-title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
    letter-spacing: -0.01em;
}
.section-desc {
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
    font-size: 0.98rem;
}

/* ===== PORTFÓLIO ===== */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 2.5rem;
}
.filter-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.45rem 1.2rem;
    border-radius: 40px;
    transition: all 0.22s ease;
    cursor: pointer;
}
.filter-btn:hover {
    border-color: var(--border-accent);
    color: var(--accent);
}
.filter-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #0a0d0a;
    font-weight: 600;
}

.portfolio-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    overflow: hidden;
    height: 100%;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}
.portfolio-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-5px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}
.portfolio-thumb {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.8rem;
    color: var(--accent);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border-subtle);
}
.portfolio-thumb.thumb-1 { background: linear-gradient(135deg, #0d1a0d, #142814); }
.portfolio-thumb.thumb-2 { background: linear-gradient(135deg, #0d141a, #14202a); }
.portfolio-thumb.thumb-3 { background: linear-gradient(135deg, #1a0d1a, #241428); }
.portfolio-thumb.thumb-4 { background: linear-gradient(135deg, #1a1a0d, #282414); }
.portfolio-thumb.thumb-5 { background: linear-gradient(135deg, #0d1a17, #142a24); }
.portfolio-thumb.thumb-6 { background: linear-gradient(135deg, #1a0d0d, #281414); }
.portfolio-thumb i {
    filter: drop-shadow(0 0 20px var(--accent-glow));
    transition: transform 0.35s ease;
}
.portfolio-card:hover .portfolio-thumb i { transform: scale(1.12); }

.portfolio-body {
    padding: 1.3rem 1.3rem 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.portfolio-cat {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 1.2px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.portfolio-body h5 {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
}
.portfolio-body p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    flex: 1;
    line-height: 1.55;
}
.portfolio-link {
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.2s ease;
}
.portfolio-link:hover { gap: 10px; color: var(--accent); }

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border-subtle);
    padding: 3rem 0 2rem;
}
.footer h6 {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}
.footer-text {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-bottom: 0.5rem;
}
.payment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.payment-list li {
    color: var(--text-secondary);
    font-size: 0.88rem;
    padding: 0.35rem 0;
    display: flex;
    align-items: center;
    gap: 10px;
}
.payment-list li i {
    color: var(--accent);
    width: 18px;
    font-size: 1rem;
}
.footer-social {
    display: flex;
    gap: 0.8rem;
}
.footer-social a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    transition: all 0.25s ease;
    text-decoration: none;
}
.footer-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
    transform: translateY(-3px);
}
.footer-bottom {
    border-top: 1px solid var(--border-subtle);
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.82rem;
}

/* ===== WHATSAPP FLUTUANTE ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1050;
    display: flex;
    align-items: center;
    background: #25D366;
    color: #fff;
    border-radius: 50px;
    padding: 0 18px 0 16px;
    height: 56px;
    text-decoration: none;
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.35);
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
    max-width: 56px;
}
.whatsapp-float i {
    font-size: 1.7rem;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}
.whatsapp-float .wa-text {
    white-space: nowrap;
    font-size: 0.9rem;
    font-weight: 600;
    margin-left: 0;
    opacity: 0;
    max-width: 0;
    transition: all 0.35s ease;
}
.whatsapp-float:hover {
    max-width: 260px;
    padding-right: 22px;
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.55);
    color: #fff;
    transform: translateY(-2px);
}
.whatsapp-float:hover .wa-text {
    opacity: 1;
    max-width: 200px;
    margin-left: 12px;
}
.whatsapp-float:hover i { transform: rotate(8deg) scale(1.05); }

@media (max-width: 576px) {
    .whatsapp-float { bottom: 20px; right: 20px; height: 52px; }
    .whatsapp-float i { font-size: 1.5rem; }
}

/* Botões */
.btn-accent {
    background: var(--accent);
    border: 1px solid var(--accent);
    color: #0a0d0a;
    font-weight: 600;
    font-size: 0.92rem;
    padding: 0.7rem 1.6rem;
    border-radius: 40px;
    transition: all 0.25s ease;
}
.btn-accent:hover {
    background: #4fdf7a;
    border-color: #4fdf7a;
    color: #0a0d0a;
    box-shadow: 0 0 24px var(--accent-glow);
    transform: translateY(-2px);
}
.btn-outline-accent {
    background: transparent;
    border: 1px solid var(--border-accent);
    color: var(--text-secondary);
    font-size: 0.92rem;
    padding: 0.7rem 1.6rem;
    border-radius: 40px;
    transition: all 0.25s ease;
}
.btn-outline-accent:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
}