/* ================================
   Kalsites - Design System
   ================================ */
/* Variáveis e Configurações Base */
:root {
    --bg-color: #0a0e17;
    --text-color: #e6edf3;
    --text-muted: #8b949e;
    --primary: #58a6ff;
    --primary-hover: #3182ce;
    --accent: #8a2be2;
    --accent-2: #d946ef;
    --surface: #131921;
    --surface-2: #1a2332;
    --border: #1e2d3d;
    --border-light: rgba(255, 255, 255, 0.06);
    --glass-bg: rgba(13, 17, 23, 0.8);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-2: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
    --gradient-text: linear-gradient(135deg, #79c0ff 0%, #d2a8ff 50%, #f778ba 100%);
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(88, 166, 255, 0.15);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    line-height: 1.7;
    overflow-x: hidden;
}
h1,
h2,
h3,
h4,
.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}
a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--primary-hover);
}
img {
    max-width: 100%;
    height: auto;
}
.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}
/* ================================
   Header / Navigation
   ================================ */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: var(--glass-bg);
    border-bottom: 1px solid var(--border-light);
    transition: all var(--transition);
}
header.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
    background: rgba(10, 14, 23, 0.95);
}
.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}
.logo a {
    font-size: 1.6rem;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo img {
    max-height: 48px;
    width: auto;
}
footer .footer-logo img {
    height: 60px;
    width: auto;
    margin-bottom: 1rem;
}
.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}
.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color var(--transition);
}
.nav-links a:hover {
    color: var(--text-color);
}
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -6px;
    left: 0;
    background: var(--gradient);
    transition: width var(--transition);
    border-radius: 2px;
}
.nav-links a:hover::after {
    width: 100%;
}
.btn-nav-cta {
    padding: 0.7rem 1.8rem;
    font-size: 0.9rem;
    border-radius: 50px;
}
/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}
.hamburger span {
    width: 26px;
    height: 2px;
    background: var(--text-color);
    transition: all var(--transition);
    border-radius: 2px;
}
.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}
.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(20px);
    padding: 2rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%);
    transition: transform var(--transition);
    z-index: 999;
}
.mobile-menu.active {
    transform: translateY(0);
}
.mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.mobile-menu a {
    color: var(--text-color);
    font-size: 1.1rem;
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-light);
}
/* ================================
   Hero Section
   ================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}
.hero-particles {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}
.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: float linear infinite;
}
@keyframes float {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-20vh) scale(1);
        opacity: 0;
    }
}
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(138, 43, 226, 0.12) 0%, rgba(88, 166, 255, 0.06) 40%, transparent 70%);
    z-index: -1;
    animation: pulse 10s ease-in-out infinite alternate;
}
@keyframes pulse {
    0% {
        transform: translateX(-50%) scale(1);
    }
    100% {
        transform: translateX(-50%) scale(1.3);
    }
}
.hero-content {
    max-width: 820px;
    text-align: center;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.2rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 2rem;
    font-weight: 500;
}
.hero h1 {
    font-size: clamp(2.5rem, 5.5vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
}
.hero p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-light);
}
.stat-item {
    text-align: center;
}
.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}
/* ================================
   Buttons
   ================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    background: var(--gradient);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(88, 166, 255, 0.25);
    transition: transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(88, 166, 255, 0.4);
    color: white;
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    background: transparent;
    color: var(--text-color);
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--transition);
}
.btn-outline:hover {
    background: var(--surface-2);
    border-color: var(--primary);
    color: var(--primary);
}
.btn-full {
    width: 100%;
    justify-content: center;
}
/* ================================
   Section Shared Styles
   ================================ */
section {
    padding: 6rem 0;
}
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}
.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.8rem;
}
.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 1rem;
}
.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}
.section-cta {
    text-align: center;
    margin-top: 3rem;
}
/* ================================
   Services Grid
   ================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}
.service-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2.5rem 2rem;
    border-radius: var(--radius);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(88, 166, 255, 0.3);
    box-shadow: var(--shadow-glow);
}
.service-card:hover::before {
    transform: scaleX(1);
}
.service-icon {
    width: 56px;
    height: 56px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1.2rem;
    transition: all var(--transition);
}
.service-card:hover .service-icon {
    background: var(--gradient);
    color: white;
    border-color: transparent;
}
.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.7rem;
}
.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}
/* ================================
   Diferenciais Section
   ================================ */
.section-differentials {
    background: var(--surface);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}
.differentials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}
.differential-item {
    display: flex;
    gap: 1.2rem;
    padding: 1.5rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}
.differential-item:hover {
    background: var(--surface-2);
}
.diff-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
}
.diff-text h4 {
    font-size: 1.05rem;
    margin-bottom: 0.3rem;
}
.diff-text p {
    color: var(--text-muted);
    font-size: 0.9rem;
}
/* ================================
   Portfolio Grid
   ================================ */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}
.portfolio-grid-full {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.portfolio-item {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    background: var(--surface);
    border: 1px solid var(--border);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    text-decoration: none;
    color: inherit;
    position: relative;
    height: 320px;
}
.portfolio-item:hover {
    transform: translateY(-6px);
    border-color: rgba(88, 166, 255, 0.4);
    box-shadow: 0 12px 40px rgba(88, 166, 255, 0.15);
}
.portfolio-img-wrap {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}
.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.portfolio-item:hover .portfolio-img {
    transform: scale(1.1);
}
/* Gradient overlay for text readability */
.portfolio-img-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 14, 23, 0.95) 0%, rgba(10, 14, 23, 0.5) 50%, transparent 100%);
    z-index: 1;
}
.portfolio-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    z-index: 2;
    transform: translateY(10px);
    transition: transform var(--transition);
}
.portfolio-item:hover .portfolio-info {
    transform: translateY(0);
}
.portfolio-info .portfolio-cat {
    display: inline-block;
    color: white;
    background: var(--primary);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    width: fit-content;
    margin-bottom: 0.2rem;
}
.portfolio-info h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}
.portfolio-info p {
    color: var(--text-color);
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 0;
    opacity: 0.9;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
/* Portfolio Filters */
.portfolio-filters {
    display: flex;
    gap: 0.8rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}
.filter-btn {
    padding: 0.6rem 1.5rem;
    background: var(--surface);
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
    font-family: var(--font-body);
}
.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient);
    color: white;
    border-color: transparent;
}
/* ================================
   CTA Final Section
   ================================ */
.section-cta-final {
    padding: 4rem 0;
}
.cta-card {
    position: relative;
    text-align: center;
    padding: 4rem 3rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.cta-glow {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(88, 166, 255, 0.1) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}
.cta-card h2 {
    position: relative;
    z-index: 1;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    margin-bottom: 1rem;
}
.cta-card p {
    position: relative;
    z-index: 1;
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.05rem;
}
.cta-card .hero-buttons {
    position: relative;
    z-index: 1;
}
/* ================================
   Contact Page
   ================================ */
.section-contact {
    padding-top: 2rem;
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 3rem;
    align-items: start;
}
.contact-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1.2rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-color);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}
.form-group select {
    cursor: pointer;
    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='%238b949e' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.info-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    transition: border-color var(--transition);
}
.info-card:hover {
    border-color: rgba(88, 166, 255, 0.3);
}
.info-icon {
    width: 42px;
    height: 42px;
    background: var(--gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}
.info-card h4 {
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
}
.info-card p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}
.info-link {
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
}
/* ================================
   SEO Hub
   ================================ */
.section-seo-hub {
    padding-top: 2rem;
}
.hub-section {
    margin-bottom: 3rem;
}
.hub-section h2 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--text-color);
}
.hub-section h2 i {
    color: var(--primary);
}
.hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}
.hub-card {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.2rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition);
}
.hub-card:hover {
    border-color: var(--primary);
    background: var(--surface-2);
    transform: translateY(-2px);
    color: var(--primary);
}
.hub-card i {
    font-size: 1.3rem;
    color: var(--primary);
}
/* ================================
   Page Header (Internal Pages)
   ================================ */
.page-header {
    padding: 160px 0 80px;
    background: var(--surface);
    text-align: center;
    border-bottom: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}
.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(138, 43, 226, 0.08) 0%, transparent 70%);
    z-index: 0;
}
.page-header .container {
    position: relative;
    z-index: 1;
}
.page-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}
.page-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}
/* ================================
   SEO Content Page
   ================================ */
.section-seo-content {
    padding-top: 2rem;
}
.page-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.8;
}
.page-content p {
    margin-bottom: 1.5rem;
}
.page-content h2,
.page-content h3 {
    color: var(--text-color);
    margin: 2.5rem 0 1rem;
}
.page-content h2 {
    font-size: 1.5rem;
}
.page-content h3 {
    font-size: 1.2rem;
}
.page-content ul,
.page-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}
.page-content li {
    margin-bottom: 0.5rem;
}
.page-content strong {
    color: var(--text-color);
}
/* ================================
   Footer
   ================================ */
footer {
    background: var(--surface);
    border-top: 1px solid var(--border-light);
    padding: 4rem 0 2rem;
    margin-top: 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}
.footer-col p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}
.footer-col ul {
    list-style: none;
}
.footer-col ul li {
    margin-bottom: 0.5rem;
}
.footer-col ul a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color var(--transition);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.footer-col ul a:hover {
    color: var(--primary);
}
.social-links {
    display: flex;
    gap: 0.8rem;
}
.social-links a {
    width: 42px;
    height: 42px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: all var(--transition);
}
.social-links a:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}
.seo-silos {
    width: 100%;
    border-top: 1px solid var(--border-light);
    padding-top: 2rem;
    margin-bottom: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}
.seo-silos a {
    color: var(--text-muted);
    font-size: 0.82rem;
    transition: color var(--transition);
    padding: 0.3rem 0.8rem;
    background: var(--surface-2);
    border-radius: 50px;
    border: 1px solid var(--border-light);
}
.seo-silos a:hover {
    color: var(--primary);
    border-color: var(--primary);
}
.footer-bottom {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}
.footer-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}
.footer-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: color var(--transition);
}
.footer-links a:hover {
    color: var(--primary);
}
/* SEO Content Page */
.section-seo-content .page-content {
    max-width: 800px;
    margin: 0 auto;
}
.section-seo-content .page-content h2 {
    font-size: 1.6rem;
    margin: 2.5rem 0 1rem;
    color: var(--text-color);
}
.section-seo-content .page-content h3 {
    font-size: 1.3rem;
    margin: 2rem 0 0.8rem;
    color: var(--text-color);
}
.section-seo-content .page-content p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text-muted);
}
.section-seo-content .page-content ul,
.section-seo-content .page-content ol {
    margin: 1rem 0 1.5rem 1.5rem;
    color: var(--text-muted);
}
.section-seo-content .page-content li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}
.section-seo-content .page-content strong {
    color: var(--text-color);
}
.seo-faq {
    margin-top: 2.5rem;
}
.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    margin-bottom: 1rem;
}
.faq-item h3 {
    font-size: 1.1rem;
    margin: 0 0 0.8rem !important;
    color: var(--text-color);
}
.faq-item p {
    margin: 0;
    font-size: 0.95rem;
}
/* ================================
   Empty State
   ================================ */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}
.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.4;
}
/* ================================
   Toast Notification
   ================================ */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-color);
    font-weight: 500;
    box-shadow: var(--shadow);
    transform: translateY(120%);
    transition: transform 0.4s ease;
    z-index: 2000;
    max-width: 400px;
}
.toast.show {
    transform: translateY(0);
}
.toast.success {
    border-left: 4px solid #10b981;
}
.toast.error {
    border-left: 4px solid #ef4444;
}
/* ================================
   Animations
   ================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}
/* ================================
   Responsive
   ================================ */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 768px) {
    .nav-links,
    .btn-nav-cta {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .mobile-menu {
        display: block;
    }
    .hero h1 {
        font-size: 2.2rem;
    }
    .hero-stats {
        gap: 1.5rem;
    }
    .stat-number {
        font-size: 1.6rem;
    }
    .services-grid {
        grid-template-columns: 1fr;
    }
    .differentials-grid {
        grid-template-columns: 1fr;
    }
    .portfolio-grid,
    .portfolio-grid-full {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .cta-card {
        padding: 3rem 1.5rem;
    }
    .page-header {
        padding: 130px 0 60px;
    }
    .hub-grid {
        grid-template-columns: 1fr;
    }
    section {
        padding: 4rem 0;
    }
}
@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .hero-buttons .btn-outline {
        width: 100%;
        justify-content: center;
    }
    .hero-buttons .btn-primary {
        width: 100%;
        justify-content: center;
    }
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
}