/* ===== CSS Variables ===== */
:root {
    --primary: #1a2a6c;
    --primary-light: #2d4a8e;
    --secondary: #00b4d8;
    --secondary-light: #48cae4;
    --accent: #6c63ff;
    --gradient: linear-gradient(135deg, #1a2a6c 0%, #2d4a8e 40%, #6c63ff 100%);
    --gradient-secondary: linear-gradient(135deg, #00b4d8 0%, #48cae4 100%);
    --text-dark: #0a0a1a;
    --text-light: #f8f9fa;
    --text-muted: #6b7280;
    --bg-light: #f4f6fc;
    --bg-white: #ffffff;
    --shadow: 0 20px 60px rgba(26, 42, 108, 0.12);
    --shadow-sm: 0 4px 20px rgba(26, 42, 108, 0.08);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--bg-white);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    text-decoration: none;
    color: inherit;
}
ul {
    list-style: none;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    justify-content: center;
    font-family: var(--font);
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(26, 42, 108, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(26, 42, 108, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}
.btn-secondary:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

.btn-white {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}
.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.btn-outline-light {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.4);
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

.btn-sm {
    padding: 10px 24px;
    font-size: 0.875rem;
}

/* ===== Header / Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
    padding: 10px 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--primary);
    flex-shrink: 0;
}
.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 1.1rem;
}
.logo span {
    color: var(--secondary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}
.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-dark);
    transition: var(--transition);
    position: relative;
    cursor: pointer;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: var(--transition);
}
.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}
.nav-links a:hover {
    color: var(--primary);
}
.nav-links .btn {
    padding: 10px 24px;
    font-size: 0.9rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}
.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 4px;
    transition: var(--transition);
}
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ===== Pages ===== */
.page {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

/* ===== Hero ===== */
.hero {
    padding: 140px 0 80px;
    background: var(--bg-light);
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(108, 99, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.6rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.hero-content h1 .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content .subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 480px;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}
.hero-stats .stat h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}
.hero-stats .stat p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual .visual-box {
    width: 100%;
    max-width: 520px;
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 40px 32px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.visual-box .glow {
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(108, 99, 255, 0.10) 0%, transparent 70%);
    border-radius: 50%;
}

.visual-box .mockup-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}
.mockup-header .dots {
    display: flex;
    gap: 6px;
}
.mockup-header .dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: block;
}
.mockup-header .dots span:nth-child(1) {
    background: #ff5f57;
}
.mockup-header .dots span:nth-child(2) {
    background: #ffbd2e;
}
.mockup-header .dots span:nth-child(3) {
    background: #28c840;
}
.mockup-header .mockup-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-left: auto;
}

.visual-box .chart-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.chart-grid .chart-item {
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 20px 16px;
    text-align: center;
}
.chart-item .icon {
    font-size: 2rem;
    margin-bottom: 8px;
    display: block;
}
.chart-item .label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-dark);
}
.chart-item .value {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.visual-box .progress-bar {
    margin-top: 24px;
    background: var(--bg-light);
    border-radius: 50px;
    height: 8px;
    overflow: hidden;
}
.progress-bar .fill {
    height: 100%;
    width: 78%;
    background: var(--gradient);
    border-radius: 50px;
    animation: progressPulse 3s ease-in-out infinite;
}

@keyframes progressPulse {
    0%,
    100% {
        width: 78%;
    }
    50% {
        width: 92%;
    }
}

.visual-box .bottom-row {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.bottom-row .badge {
    background: var(--bg-light);
    padding: 4px 14px;
    border-radius: 50px;
    font-weight: 500;
    color: var(--primary);
    font-size: 0.75rem;
}

/* ===== Trust Section ===== */
.trust {
    padding: 48px 0;
    background: var(--bg-white);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}
.trust .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.trust .trust-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}
.trust-logos {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 32px 48px;
}
.trust-logos .logo-item {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-muted);
    opacity: 0.6;
    transition: var(--transition);
    letter-spacing: 0.02em;
}
.trust-logos .logo-item:hover {
    opacity: 1;
    color: var(--primary);
}
.trust-logos .logo-item i {
    margin-right: 8px;
    font-size: 1.3rem;
}

/* ===== Section Common ===== */
.section {
    padding: 80px 0;
}
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 56px;
}
.section-header .tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--secondary);
    background: rgba(0, 180, 216, 0.10);
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 12px;
}
.section-header h2 {
    font-size: 2.6rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}
.section-header h2 .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.7;
}

/* ===== Problem → Solution (About) ===== */
.problem-solution {
    background: var(--bg-light);
}
.ps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px 60px;
    align-items: start;
}
.ps-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}
.ps-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.ps-card .icon {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
}
.ps-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.ps-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}
.ps-card.solution {
    border-left: 4px solid var(--secondary);
}
.ps-card.problem {
    border-left: 4px solid #ff6b6b;
}

/* ===== Products / Services ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.product-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 32px 24px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    text-align: center;
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
}
.product-card .icon {
    font-size: 2.6rem;
    margin-bottom: 16px;
    display: block;
    color: var(--primary);
}
.product-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
}
.product-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}
.product-card .learn-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary);
    transition: var(--transition);
}
.product-card .learn-more:hover {
    gap: 12px;
}

/* ===== Benefits ===== */
.benefits {
    background: var(--bg-light);
}
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.benefit-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}
.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.benefit-card .icon {
    font-size: 2.4rem;
    margin-bottom: 12px;
    display: block;
    color: var(--secondary);
}
.benefit-card h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.benefit-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ===== How It Works ===== */
.how-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    position: relative;
}
.how-grid::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 16%;
    right: 16%;
    height: 2px;
    background: var(--gradient);
    opacity: 0.2;
}
.how-step {
    text-align: center;
    position: relative;
    z-index: 1;
}
.how-step .step-num {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.4rem;
    margin: 0 auto 16px;
    box-shadow: 0 8px 30px rgba(26, 42, 108, 0.2);
}
.how-step h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.how-step p {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 280px;
    margin: 0 auto;
}

/* ===== Technology ===== */
.tech {
    background: var(--bg-white);
}
.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.tech-item {
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 20px 16px;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}
.tech-item:hover {
    transform: translateY(-2px);
    border-color: var(--secondary);
}
.tech-item .icon {
    font-size: 2rem;
    margin-bottom: 8px;
    display: block;
    color: var(--primary);
}
.tech-item .name {
    font-weight: 600;
    font-size: 0.9rem;
}
.tech-item .desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
}
.tech-tags span {
    background: var(--bg-light);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-dark);
    border: 1px solid rgba(0, 0, 0, 0.04);
}
.tech-tags span i {
    margin-right: 6px;
    color: var(--secondary);
}

/* ===== Case Studies ===== */
.case-studies {
    background: var(--bg-light);
}
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.case-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}
.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.case-card .case-tag {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--secondary);
    background: rgba(0, 180, 216, 0.10);
    padding: 4px 14px;
    border-radius: 50px;
    display: inline-block;
    margin-bottom: 12px;
}
.case-card h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.case-card .industry {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.case-card p {
    font-size: 0.95rem;
    color: var(--text-dark);
    line-height: 1.6;
}
.case-card .result {
    margin-top: 12px;
    font-weight: 600;
    color: var(--primary);
    font-size: 0.95rem;
}
.case-card .result i {
    color: var(--secondary);
    margin-right: 6px;
}

/* ===== Testimonials ===== */
.testimonials {
    background: var(--bg-white);
}
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.testimonial-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 28px 24px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: var(--transition);
}
.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
}
.testimonial-card .stars {
    color: #fbbf24;
    font-size: 1rem;
    margin-bottom: 12px;
}
.testimonial-card blockquote {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-dark);
    font-style: italic;
    margin-bottom: 16px;
}
.testimonial-card .author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.author .avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
}
.author .info .name {
    font-weight: 600;
    font-size: 0.95rem;
}
.author .info .role {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== Final CTA ===== */
.cta-final {
    background: var(--gradient);
    padding: 80px 0;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.cta-final::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    pointer-events: none;
}
.cta-final::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
    pointer-events: none;
}
.cta-final .container {
    position: relative;
    z-index: 1;
}
.cta-final h2 {
    font-size: 2.6rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.cta-final p {
    font-size: 1.1rem;
    opacity: 0.85;
    max-width: 560px;
    margin: 0 auto 32px;
}
.cta-final .btn-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

/* ===== Contact Page ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.contact-info h3 {
    font-size: 1.4rem;
    margin-bottom: 16px;
}
.contact-info p {
    color: var(--text-muted);
    margin-bottom: 24px;
}
.contact-info .detail {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}
.contact-info .detail i {
    width: 40px;
    height: 40px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.1rem;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid #ddd;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 1rem;
    transition: var(--transition);
    margin-bottom: 16px;
    background: var(--bg-white);
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.1);
}
.contact-form textarea {
    min-height: 140px;
    resize: vertical;
}
.contact-form .btn {
    width: 100%;
    justify-content: center;
}

/* ===== Blog & Careers ===== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.blog-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.blog-card .date {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.blog-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}
.blog-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}
.blog-card .read-more {
    display: inline-block;
    margin-top: 12px;
    font-weight: 600;
    color: var(--primary);
}

.careers-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.career-item {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: var(--shadow-sm);
}
.career-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
}
.career-item .location {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 4px 0 8px;
}
.career-item .btn {
    margin-top: 12px;
}

/* ===== Footer ===== */
.footer {
    background: #0a0a1a;
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 32px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo {
    color: #fff;
    margin-bottom: 12px;
}
.footer-brand .logo .logo-icon {
    background: var(--gradient);
}
.footer-brand p {
    font-size: 0.9rem;
    max-width: 300px;
    line-height: 1.7;
}
.footer-col h4 {
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 16px;
}
.footer-col a {
    display: block;
    font-size: 0.9rem;
    padding: 4px 0;
    transition: var(--transition);
    cursor: pointer;
}
.footer-col a:hover {
    color: #fff;
    transform: translateX(4px);
}
.footer-col .social {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}
.footer-col .social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.10);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: var(--transition);
}
.footer-col .social a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.85rem;
}
.footer-bottom a {
    transition: var(--transition);
}
.footer-bottom a:hover {
    color: #fff;
}

/* ===== WhatsApp Floating Button ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    background: #25d366;
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-decoration: none;
}
.whatsapp-float:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}
.whatsapp-float i {
    line-height: 1;
}
.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    font-weight: 500;
}
.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
}

/* ===== Back to Top ===== */
.back-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient);
    color: #fff;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(26, 42, 108, 0.3);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 998;
}
.back-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(26, 42, 108, 0.4);
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    padding: 80px 24px 40px;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-menu.open {
    transform: translateX(0);
    display: flex;
}
.mobile-menu a {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-dark);
    padding: 8px 0;
    transition: var(--transition);
    cursor: pointer;
}
.mobile-menu a:hover {
    color: var(--primary);
}
.mobile-menu .btn {
    margin-top: 8px;
    width: 100%;
    max-width: 280px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content .subtitle {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
    .hero-cta {
        justify-content: center;
    }
    .hero-stats {
        justify-content: center;
    }
    .hero-visual .visual-box {
        max-width: 100%;
    }

    .products-grid,
    .benefits-grid,
    .case-grid,
    .testimonial-grid,
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .ps-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .how-grid::before {
        display: none;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .careers-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hamburger {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
        min-height: auto;
    }
    .hero-content h1 {
        font-size: 2.4rem;
    }
    .hero-content .subtitle {
        font-size: 1rem;
    }
    .hero-stats {
        gap: 24px;
        flex-wrap: wrap;
    }
    .hero-stats .stat h3 {
        font-size: 1.5rem;
    }

    .section {
        padding: 56px 0;
    }
    .section-header h2 {
        font-size: 2rem;
    }
    .section-header p {
        font-size: 1rem;
    }

    .products-grid,
    .benefits-grid,
    .case-grid,
    .testimonial-grid,
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .how-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .tech-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .cta-final h2 {
        font-size: 2rem;
    }

    .visual-box .chart-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .chart-grid .chart-item {
        padding: 14px 12px;
    }

    .trust-logos {
        gap: 16px 24px;
    }
    .trust-logos .logo-item {
        font-size: 0.9rem;
    }

    .mobile-menu {
        display: flex;
        transform: translateX(100%);
    }
    .mobile-menu.open {
        transform: translateX(0);
    }

    .whatsapp-float {
        width: 54px;
        height: 54px;
        font-size: 1.6rem;
        bottom: 20px;
        right: 20px;
    }
    .whatsapp-tooltip {
        display: none;
    }
    .back-top {
        bottom: 90px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.9rem;
    }
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    .container {
        padding: 0 16px;
    }
    .visual-box {
        padding: 24px 16px !important;
    }
    .tech-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ===== 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, transform 0.6s ease;
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}