/* Base Settings & CSS Variables */
:root {
    --color-orange: #ff6b00; /* Modern striking orange */
    --color-orange-dark: #cc5600;
    --color-orange-light: #ff8533;
    
    --color-black: #111111;
    --color-dark-gray: #2d2d2d;
    --color-gray: #4a4a4a;
    --color-light-gray: #f5f6f8;
    --color-white: #ffffff;
    --color-whatsapp: #25D366;
    --color-whatsapp-dark: #128C7E;
    
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    --shadow-soft: 0 10px 30px rgba(0,0,0,0.05);
    --shadow-hover: 0 15px 40px rgba(255,107,0,0.15);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth; /* SEO & UX best practice for in-page anchors */
}

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

/* Typography */
h1, h2, h3, h4 {
    color: var(--color-black);
    font-weight: 800;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

.text-orange {
    color: var(--color-orange);
}

.bg-gray {
    background-color: var(--color-light-gray);
}

.bg-dark {
    background-color: var(--color-black);
    color: var(--color-white);
}

.bg-dark h2, .bg-dark h3 {
    color: var(--color-white);
}

/* Utility Containers */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-gray);
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--color-orange);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-orange-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-whatsapp {
    background-color: var(--color-whatsapp);
    color: var(--color-white);
}

.btn-whatsapp:hover {
    background-color: var(--color-whatsapp-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37,211,102,0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-black);
    border: 2px solid var(--color-black);
}

.btn-secondary:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* --- Header --- */
.main-header {
    background-color: var(--color-white);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.05);
    transition: padding var(--transition-fast);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-dark-gray);
    letter-spacing: -1px;
}

.logo-i9 {
    background-color: var(--color-orange);
    color: var(--color-white);
    padding: 0.2rem 0.6rem;
    border-radius: 8px;
    margin-right: 0.1rem;
    font-size: 1.5rem;
    box-shadow: 0 4px 10px rgba(255, 107, 0, 0.3);
}

.logo-text {
    color: var(--color-black);
    text-transform: lowercase;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-dark-gray);
    position: relative;
}

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

.nav-links a:hover {
    color: var(--color-orange);
}

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

/* Menu Toggle (Mobile) */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--color-black);
    border-radius: 10px;
    transition: all var(--transition-fast);
}

/* Nav Menu Open State */
body.nav-open .nav-links {
    transform: translateX(0);
}

body.nav-open .menu-toggle span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
body.nav-open .menu-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .menu-toggle span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* --- Badge Authority --- */
.badge {
    display: inline-block;
    background: rgba(255, 102, 0, 0.1);
    color: var(--color-orange);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 102, 0, 0.2);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    padding: 180px 0 120px;
    background-color: var(--color-white);
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

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

.hero-shape {
    position: absolute;
    top: 0;
    right: -10%;
    width: 50vw;
    height: 100%;
    background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-dark) 100%);
    clip-path: polygon(25% 0%, 100% 0%, 100% 100%, 0% 100%);
    z-index: 1;
    opacity: 0.1;
}

/* --- Benefits Section --- */
.benefits {
    padding: 5rem 0;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition-smooth);
    border-top: 4px solid var(--color-orange);
}

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

.icon-wrap {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* --- Equipment --- */
.equipment {
    padding: 6rem 0;
    background-color: var(--color-white);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.printer-card {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid #eaeaea;
    transition: all var(--transition-smooth);
}

.printer-card:hover {
    border-color: var(--color-orange-light);
    box-shadow: var(--shadow-hover);
}

.printer-img-container {
    height: 300px;
    overflow: hidden;
    position: relative;
    background: #f8f9fa;
}

.printer-img-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1rem;
    transition: transform var(--transition-smooth);
}

.printer-card:hover .printer-img-container img {
    transform: scale(1.05);
}

.printer-info {
    padding: 2rem;
}

.printer-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.printer-info p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.printer-specs {
    list-style: none;
    margin-bottom: 1.5rem;
}

.printer-specs li {
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.printer-specs li::before {
    content: "✓";
    color: var(--color-orange);
    font-weight: bold;
}

/* --- Coverage (SEO Interlinking) --- */
.coverage {
    padding: 5rem 0;
}

.coverage-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.coverage-content p {
    margin-bottom: 2.5rem;
    opacity: 0.8;
    max-width: 800px;
}

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

.city-badge {
    background-color: rgba(255,255,255,0.05);
    color: var(--color-white);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.15);
    transition: all var(--transition-fast);
    display: inline-block;
}

.city-badge:hover {
    background-color: var(--color-orange);
    border-color: var(--color-orange);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255,107,0,0.3);
}

/* --- Contact & Forms --- */
.contact {
    padding: 6rem 0;
    background-color: var(--color-light-gray);
}

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

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.contact-info p {
    margin-bottom: 2.5rem;
}

.method {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.method-icon {
    font-size: 1.5rem;
    background: var(--color-white);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: var(--shadow-soft);
}

.method-text strong {
    display: block;
    color: var(--color-black);
    margin-bottom: 0.25rem;
}

.method-text a {
    color: var(--color-orange);
    font-weight: 600;
}

.contact-form-card {
    background: var(--color-white);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
}

.contact-form-card h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-dark-gray);
}

.form-group input, 
.form-group select, 
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-orange);
    box-shadow: 0 0 0 3px rgba(255,107,0,0.1);
}

.form-disclaimer {
    font-size: 0.8rem;
    color: #888;
    text-align: center;
    margin-top: 1rem;
}

/* --- FAQ Section --- */
.faq-section {
    padding: 6rem 0;
}

.faq-item {
    background: var(--color-white);
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.faq-item summary {
    padding: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
    position: relative;
    transition: background var(--transition-fast);
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    color: var(--color-orange);
    font-size: 1.5rem;
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-item summary:hover {
    background: #fdfdfd;
}

.faq-item p {
    padding: 0 1.5rem 1.5rem;
    color: var(--color-gray);
    font-size: 0.95rem;
}

/* --- Social Proof --- */
.social-proof {
    padding: 6rem 0;
}

.client-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.client-logo {
    font-weight: 800;
    opacity: 0.3;
    filter: grayscale(1);
    font-size: 1.1rem;
    text-align: center;
}

.testimonial-simple {
    background: var(--color-light-gray);
    padding: 2.5rem;
    border-radius: 20px;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.testimonial-simple::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 5rem;
    color: var(--color-orange);
    opacity: 0.2;
    font-family: serif;
}

/* --- Reveal Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* --- Social Icons --- */
.footer-social {
    display: flex;
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.social-icon {
    font-size: 1.4rem;
    color: var(--color-white);
    transition: all var(--transition-fast);
    opacity: 0.8;
}

.social-icon:hover {
    color: var(--color-orange);
    opacity: 1;
    transform: translateY(-3px);
}

/* --- Footer --- */
.main-footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    opacity: 0.7;
    max-width: 300px;
}

.footer-links h4, .footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.footer-links a, .footer-contact p {
    display: block;
    margin-bottom: 0.75rem;
    opacity: 0.7;
}

.footer-links a:hover {
    color: var(--color-orange);
    opacity: 1;
}

.footer-bottom {
    background-color: #0a0a0a;
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.6;
}

/* --- Floating WhatsApp --- */
.floating-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366; /* WhatsApp Official Green */
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37,211,102,0.4);
    z-index: 9999;
    transition: transform var(--transition-fast);
}

.floating-whatsapp:hover {
    transform: scale(1.1);
}

/* --- Responsive Layouts --- */
@media (max-width: 900px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    .footer-content {
        grid-template-columns: 1fr;
    }
    .hero {
        padding: 140px 0 80px;
        text-align: center;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-shape {
        display: none;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
        order: 2;
    }
    .logo {
        order: 1;
    }
    .btn-whatsapp-header {
        display: none; /* Hide in primary header on mobile to avoid clutter */
    }
    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateX(100%);
        transition: transform var(--transition-smooth);
        z-index: 1000;
    }
    .nav-links a {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }
}

@media (max-width: 600px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 2.2rem;
    }
    .contact-form-card {
        padding: 2rem 1.5rem;
    }
}