:root {
    --primary: #dc2626;
    --primary-dark: #b91c1c;
    --primary-light: #ef4444;
    --secondary: #f87171;
    --accent: #fca5a5;
    --dark-bg: #0f0f0f;
    --dark-card: #1a1a1a;
    --dark-card-hover: #242424;
    --text-primary: #f5f5f5;
    --text-secondary: #a3a3a3;
    --header-height: 90px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== HEADER ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 15, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(220, 38, 38, 0.1);
    transition: transform 0.3s, background 0.3s, box-shadow 0.3s;
    height: var(--header-height);
}

.site-header.scrolled {
    background: rgba(15, 15, 15, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    border-bottom-color: rgba(220, 38, 38, 0.3);
}

.site-header.header-hidden {
    transform: translateY(-100%);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.header-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.header-logo img {
    height: auto;
    filter: drop-shadow(0 2px 8px rgba(220, 38, 38, 0.3));
}

.header-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.header-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s;
}

.header-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

.header-nav a:hover,
.header-nav a.active {
    color: var(--text-primary);
}

.header-nav a:hover::after,
.header-nav a.active::after {
    width: 100%;
}

.header-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.header-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: transform 0.3s, opacity 0.3s;
}

.header-menu-btn.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header-menu-btn.open span:nth-child(2) {
    opacity: 0;
}

.header-menu-btn.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== BUTTONS ===== */
.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #374151;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 8px 25px rgba(251, 191, 36, 0.4);
    border: none;
    cursor: pointer;
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(251, 191, 36, 0.6);
}

.btn-whatsapp svg {
    width: 28px;
    height: 28px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 40px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.3);
    border: none;
    cursor: pointer;
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(220, 38, 38, 0.5);
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 50px;
    background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
    color: #fbbf24;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 10px 30px rgba(45, 45, 45, 0.5);
    border: none;
    cursor: pointer;
}

.btn-cta:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 40px rgba(45, 45, 45, 0.7);
}

.btn-cta svg {
    width: 30px;
    height: 30px;
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--header-height) + 2rem) 0 4rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 60% 50% at 0% 50%, rgba(220, 38, 38, 0.1) 0%, transparent 100%),
        radial-gradient(ellipse 40% 60% at 70% 20%, rgba(239, 68, 68, 0.06) 0%, transparent 100%);
}

.hero-wrapper {
    display: flex;
    align-items: center;
    gap: 4rem;
    z-index: 1;
    position: relative;
}

.hero-content {
    flex: 1.1;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease both;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    animation: fadeInUp 0.8s ease 0.15s both;
}

.hero-title br {
    display: block;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 480px;
    line-height: 1.7;
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-features {
    display: flex;
    gap: 1.75rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.45s both;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.hero-feature svg {
    width: 16px;
    height: 16px;
    color: var(--primary-light);
    flex-shrink: 0;
}

.hero-feature span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: heroImageIn 1s ease 0.4s both;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow:
        0 24px 48px rgba(0, 0, 0, 0.4),
        0 0 80px rgba(220, 38, 38, 0.12);
}

@keyframes heroImageIn {
    from { opacity: 0; transform: translateX(40px) scale(0.97); }
    to { opacity: 1; transform: translateX(0) scale(1); }
}

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

.section-header h2 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ===== FEATURES ===== */
.features {
    padding: 6rem 0;
}

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

.feature-card {
    background: var(--dark-card);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(220, 38, 38, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== DEVICES ===== */
.devices {
    padding: 6rem 0;
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 50%, var(--dark-bg) 100%);
}

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

.device-card {
    background: var(--dark-bg);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    border: 2px solid transparent;
}

.device-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-light);
    box-shadow: 0 15px 30px rgba(239, 68, 68, 0.2);
}

.device-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.device-icon svg {
    width: 35px;
    height: 35px;
    color: white;
}

.device-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.device-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== TIMELINE ===== */
.how-it-works {
    padding: 6rem 0;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-light) 100%);
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 3rem;
}

.timeline-marker {
    position: absolute;
    left: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 0 0 8px var(--dark-bg), 0 5px 20px rgba(220, 38, 38, 0.3);
}

.timeline-content {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 15px;
    border-left: 4px solid var(--primary);
    transition: transform 0.3s, box-shadow 0.3s;
}

.timeline-content:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(220, 38, 38, 0.2);
}

.timeline-content h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: var(--secondary);
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    top: -250px;
    right: -250px;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: white;
}

.cta p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.95);
}

/* ===== FAQ ===== */
.faq {
    padding: 6rem 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--dark-card);
    border-radius: 15px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    border: 2px solid transparent;
    transition: border-color 0.3s;
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-question {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.faq-question h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.faq-toggle {
    font-size: 2rem;
    color: var(--primary);
    transition: transform 0.3s;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 2rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== FOOTER ===== */
.site-footer {
    background: var(--dark-card);
    padding: 4rem 0 2rem;
    border-top: 2px solid var(--primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.footer-col a:hover {
    color: var(--text-primary);
}

.footer-whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    border-radius: 50px;
    color: #374151 !important;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
}

.footer-whatsapp-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(251, 191, 36, 0.4);
}

.footer-whatsapp-btn svg {
    width: 18px;
    height: 18px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(220, 38, 38, 0.2);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== PAGE HERO (inner pages) ===== */
.page-content {
    padding-top: var(--header-height);
}

.page-hero {
    padding: 5rem 0 3rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.08) 0%, rgba(15, 15, 15, 1) 70%);
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ===== CONTACT PAGE ===== */
.contact-section {
    padding: 4rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-card {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 20px;
    border: 2px solid transparent;
    transition: border-color 0.3s;
}

.contact-card:hover {
    border-color: var(--primary);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.contact-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.contact-card .btn-whatsapp {
    padding: 14px 30px;
    font-size: 1rem;
}

.contact-cta-box {
    background: var(--dark-card);
    padding: 3rem;
    border-radius: 20px;
    border: 2px solid var(--primary);
    position: sticky;
    top: calc(var(--header-height) + 2rem);
}

.contact-cta-box h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-cta-box p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.contact-steps {
    margin-bottom: 2rem;
}

.contact-step {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    color: var(--text-secondary);
}

.step-number {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.contact-cta-box .btn-cta {
    width: 100%;
    justify-content: center;
    padding: 16px 30px;
    font-size: 1rem;
}

/* ===== ABOUT PAGE ===== */
.about-section {
    padding: 4rem 0;
}

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

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(220, 38, 38, 0.2);
}

.values-section {
    padding: 4rem 0 6rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.value-card {
    background: var(--dark-card);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    border: 2px solid transparent;
}

.value-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(220, 38, 38, 0.2);
}

.value-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.value-icon svg {
    width: 35px;
    height: 35px;
    color: white;
}

.value-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.value-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    position: relative;
    overflow: hidden;
}

.about-cta::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    top: -250px;
    right: -250px;
}

.about-cta .cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.about-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
}

.about-cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

/* ===== TERMS PAGE ===== */
.terms-section {
    padding: 4rem 0 6rem;
}

.terms-content {
    max-width: 800px;
    margin: 0 auto;
}

.terms-block {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 15px;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary);
}

.terms-block h2 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--secondary);
}

.terms-block p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.terms-block ul {
    list-style: none;
    margin-top: 1rem;
}

.terms-block ul li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.8;
}

.terms-block ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 1rem;
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
}

.terms-block a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color 0.3s;
}

.terms-block a:hover {
    color: var(--secondary);
}

.terms-update {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-wrapper {
        flex-direction: column;
    }

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

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

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-image {
        order: -1;
    }

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

@media (max-width: 768px) {
    .header-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(15, 15, 15, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: right 0.3s;
        border-left: 1px solid rgba(220, 38, 38, 0.2);
    }

    .header-nav.open {
        right: 0;
    }

    .header-nav ul {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .header-nav a {
        font-size: 1.2rem;
    }

    .header-menu-btn {
        display: flex;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .hero-features {
        gap: 1rem 1.5rem;
    }

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

    .section-header h2 {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .devices-grid {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        padding-left: 60px;
    }

    .timeline-marker {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

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

    .cta p {
        font-size: 1.1rem;
    }

    .page-title {
        font-size: 2.2rem;
    }

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

    .contact-cta-box {
        position: static;
    }
}

/* Author Box */
.author-details {
    max-width: 800px;
    margin: 0 auto 3rem;
    background: var(--dark-card);
    border: 1px solid rgba(220, 38, 38, 0.15);
    border-radius: 20px;
    overflow: hidden;
}
.author-summary {
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    font-weight: 600;
    color: var(--text-primary);
}
.author-summary::-webkit-details-marker { display: none; }
.author-summary::marker { display: none; content: ''; }
.author-label { font-size: 1.05rem; }
.author-chevron {
    color: var(--primary-light);
    font-size: 1.5rem;
    transition: transform 0.3s;
    flex-shrink: 0;
}
.author-details[open] .author-chevron { transform: rotate(180deg); }
.author-box {
    padding: 0 1.5rem 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.author-avatar svg { width: 24px; height: 24px; color: white; }
.author-name {
    font-weight: 600;
    color: var(--primary-light);
    font-size: 1.05rem;
}
.author-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}
.author-bio {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-top: 0.75rem;
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.9rem;
    }

    .hero-features {
        flex-direction: column;
        gap: 0.6rem;
    }

    .btn-whatsapp, .btn-secondary {
        padding: 15px 30px;
        font-size: 1rem;
    }

    .btn-cta {
        padding: 16px 35px;
        font-size: 1rem;
    }

    .page-title {
        font-size: 1.8rem;
    }

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