/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

:root {
    --primary: #14b8a6;
    --primary-dark: #0d9488;
    --primary-light: #5eead4;
    --secondary: #047857;
    --accent: #7de8d6; /* More saturated for better visibility */
    --background: #d4f4ed; /* More saturated, clearly distinguishable from white */
    --surface: #ffffff;
    --text-primary: #134e4a;
    --text-secondary: #115e59;
    --text-light: #2dd4bf;
    --shadow: rgba(20, 184, 166, 0.1);
}

/* FIXED: Dark mode contrast improvements */
[data-theme="dark"] {
    --primary: #14b8a6;
    --primary-dark: #0d9488; /* Darker for better contrast */
    --primary-light: #2dd4bf;
    --secondary: #0f766e; /* Much darker for logo/footer */
    --accent: #134e4a;
    --background: #0f1419;
    --surface: #1a1f26;
    --text-primary: #e5e7eb;
    --text-secondary: #d1d5db;
    --text-light: #5eead4;
    --shadow: rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--background);
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Accessibility: Skip link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background-color: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    font-weight: 600;
    z-index: 1000;
    border-radius: 0 0 8px 0;
}

.skip-link:focus {
    top: 0;
}

/* Accessibility: Focus indicators */
*:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 3px;
    border-radius: 4px;
}

button:focus-visible,
a:focus-visible {
    outline-color: var(--primary);
}

section[id] {
    scroll-margin-top: 80px;
}

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

/* Theme Transition Overlay */
.theme-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    pointer-events: none;
    background-color: var(--background);
    clip-path: circle(0% at var(--tx, 50%) var(--ty, 50%));
    transition: clip-path 0.6s ease-in-out;
}

.theme-transition.active {
    clip-path: circle(150% at var(--tx, 50%) var(--ty, 50%));
}

/* Header */
.header {
    background-color: var(--surface);
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 0.5rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px var(--shadow);
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(20, 184, 166, 0.3);
}

.logo-img {
    height: 50px;
    width: auto;
    display: block;
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--surface);
    border: 2px solid var(--primary);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    width: 40px;
    height: 40px;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.theme-toggle:hover .theme-icon {
    filter: brightness(0) invert(1);
}

.theme-icon {
    width: 20px;
    height: 20px;
    transition: all 0.3s ease;
    filter: brightness(0) saturate(100%) invert(44%) sepia(78%) saturate(1157%) hue-rotate(146deg) brightness(91%) contrast(93%);
}

[data-theme="dark"] .theme-icon {
    filter: brightness(0) saturate(100%) invert(88%) sepia(19%) saturate(1011%) hue-rotate(113deg) brightness(99%) contrast(96%);
}

.lang-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
    min-width: 50px;
}

.lang-toggle:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #edfcf7 0%, #ccfbf1 100%);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .hero {
    background: linear-gradient(135deg, var(--background) 0%, var(--accent) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(var(--primary) 0.5px, transparent 0.5px);
    background-size: 24px 24px;
    opacity: 0.07;
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
    line-height: 1.15;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 50%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    min-height: 3.6em;
}

.typewriter-wrapper {
    display: block;
    margin-top: 0.25rem;
    color: var(--primary);
    font-weight: 600;
}

.typewriter-cursor {
    animation: blink 0.8s step-end infinite;
    color: var(--primary);
    font-weight: 300;
}

@keyframes blink {
    50% { opacity: 0; }
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 30px;
    text-decoration: none;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 15px var(--shadow);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(20, 184, 166, 0.5);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 30px;
    box-shadow: 0 0 20px rgba(20, 184, 166, 0.4);
    opacity: 0;
    animation: btnPulse 2.5s ease-in-out infinite;
}

@keyframes btnPulse {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

.hero-image {
    display: flex;
    justify-content: center;
    will-change: transform;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(20, 184, 166, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 3px solid transparent;
    background-image: linear-gradient(var(--surface), var(--surface)), linear-gradient(135deg, var(--primary), var(--primary-light), var(--primary-dark));
    background-origin: border-box;
    background-clip: padding-box, border-box;
}

.hero-image img:hover {
    transform: scale(1.03);
    box-shadow: 0 15px 50px rgba(20, 184, 166, 0.3);
}

/* Social Proof */
.social-proof {
    padding: 3.5rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.social-proof::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
}

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

.proof-stat {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.15rem;
    margin-bottom: 1rem;
}

.proof-number {
    font-size: 4rem;
    font-weight: 700;
    color: white;
    line-height: 1;
}

.proof-plus {
    font-size: 3rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.8);
}

.proof-text {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 5rem 0;
    background-color: var(--surface);
}

.section-title {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 2.5rem;
    text-align: center;
    position: relative;
    padding-bottom: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
    transition: transform 0.6s ease;
}

.section-title.animate-in::after {
    transform: translateX(-50%) scaleX(1);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
    align-items: start;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.highlight-item:hover {
    transform: translateX(5px);
}

.highlight-marker {
    width: 4px;
    min-height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--primary-light));
    border-radius: 2px;
    flex-shrink: 0;
    transition: all 0.3s ease;
    box-shadow: 0 0 0 rgba(20, 184, 166, 0);
}

.highlight-item:hover .highlight-marker {
    width: 6px;
    box-shadow: 0 0 12px rgba(20, 184, 166, 0.6);
}

.highlight-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.highlight-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.about-narrative {
    padding-top: 0.25rem;
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.9;
    text-align: justify;
    letter-spacing: 0.01em;
}

/* Methodology */
.methodology {
    padding: 5rem 0;
    background: linear-gradient(180deg, var(--background) 0%, var(--surface) 100%);
}

.method-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.method-step {
    text-align: center;
    position: relative;
    padding: 2rem 1.5rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.method-step:hover {
    transform: translateY(-5px);
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
}

.method-step:hover .step-number {
    transform: scale(1.15);
    box-shadow: 0 6px 25px rgba(20, 184, 166, 0.4);
}

.step-connector {
    position: absolute;
    top: 28px;
    left: calc(50% + 36px);
    width: calc(100% - 36px);
    height: 2px;
    background: linear-gradient(90deg, var(--primary-light), var(--primary));
    opacity: 0.4;
}

.method-step:last-child .step-connector {
    display: none;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.step-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Services Section - Sticky Scroll Stack */
.services {
    padding: 5rem 0 8rem;
    background-color: var(--surface);
}

.services .section-title {
    position: sticky;
    top: 120px;
    background-color: var(--surface);
    z-index: 0;
    padding-top: 1rem;
    padding-bottom: 2rem;
    margin-bottom: 0;
}

.services-stack {
    max-width: 900px;
    margin: 4rem auto 0;
    position: relative;
}

.service-card {
    background-color: var(--surface);
    padding: 3rem 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px var(--shadow);
    border: 2px solid var(--primary-light);
    margin-bottom: 2rem;
    position: sticky;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-style: preserve-3d;
}

.service-card:nth-child(1) {
    top: 35vh;
    z-index: 1;
}

.service-card:nth-child(2) {
    top: 35vh;
    z-index: 2;
}

.service-card:nth-child(3) {
    top: 35vh;
    z-index: 3;
}

.service-card:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 60px rgba(20, 184, 166, 0.3);
    border-color: var(--primary);
}

.service-icon {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.service-icon-circle {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0d9488, #047857);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

[data-theme="dark"] .service-icon-circle {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.15), rgba(94, 234, 212, 0.05));
}

.service-card:hover .service-icon-circle {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.2), rgba(94, 234, 212, 0.15));
}

.service-icon .icon-img {
    width: 40px;
    height: 40px;
    transition: all 0.3s ease;
    filter: brightness(0) invert(1);
}

[data-theme="dark"] .service-icon .icon-img {
    filter: brightness(0) saturate(100%) invert(88%) sepia(19%) saturate(1011%) hue-rotate(113deg) brightness(99%) contrast(96%);
}

.service-card:hover .icon-img {
    filter: brightness(0) saturate(100%) invert(44%) sepia(78%) saturate(1157%) hue-rotate(146deg) brightness(91%) contrast(93%);
}

.service-title {
    font-size: 1.5rem;
    color: var(--secondary);
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

/* Certification Badge */
.service-badge {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 0.9rem;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.6;
}


/* FAQ Section */
.faq {
    padding: 5rem 0;
    background: linear-gradient(180deg, var(--background) 0%, var(--surface) 100%);
}

.faq-list {
    max-width: 800px;
    margin: 3rem auto 0;
}

.faq-item {
    margin-bottom: 1rem;
    border-radius: 12px;
    overflow: hidden;
    background-color: var(--surface);
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

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

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 1.75rem;
    background-color: var(--surface);
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    transition: all 0.3s ease;
    position: relative;
}

.faq-question::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.faq-question:hover::before,
.faq-question[aria-expanded="true"]::before {
    transform: scaleY(1);
}

.faq-question:hover {
    color: var(--secondary);
    padding-left: 2rem;
}

.faq-question[aria-expanded="true"] {
    color: var(--secondary);
    padding-left: 2rem;
}

.faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: var(--primary);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(180deg) scale(1.1);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 1.75rem;
}

.faq-question[aria-expanded="true"] + .faq-answer {
    max-height: 500px;
    padding: 0 1.75rem 1.5rem;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1rem;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    background-color: var(--surface);
}

.contact-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.contact-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 15px var(--shadow);
    position: relative;
    overflow: hidden;
}

.contact-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.contact-link:hover::before {
    width: 300px;
    height: 300px;
}

.contact-link:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(20, 184, 166, 0.4);
}

.contact-icon {
    transition: transform 0.3s ease;
    position: relative;
    z-index: 1;
}

.contact-link:hover .contact-icon {
    transform: rotate(-10deg) scale(1.1);
}

.contact-icon {
    width: 24px;
    height: 24px;
    filter: brightness(0) invert(1);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2.5rem 0 1.5rem;
    text-align: center;
    border-top: 3px solid var(--primary-light);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
}

.footer-social img {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

.footer-text {
    font-size: 0.9rem;
    opacity: 0.85;
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: #25D366;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    z-index: 99;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.5);
}

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

/* Back-to-Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--primary);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(20, 184, 166, 0.4);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-image img {
        max-width: 300px;
    }

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

    .about-narrative {
        order: -1;
    }

    .method-steps {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .step-connector {
        display: none;
    }

    .services-stack {
        max-width: 100%;
        padding: 0 1rem;
    }

    .service-card {
        padding: 2rem 1.5rem;
    }

    .services .section-title {
        top: 100px;
        padding-bottom: 1.5rem;
    }

    .service-card:nth-child(1),
    .service-card:nth-child(2),
    .service-card:nth-child(3) {
        top: 30vh;
    }

    .section-title {
        font-size: 2rem;
    }

    .proof-number {
        font-size: 3rem;
    }

    .footer-social a {
        width: 36px;
        height: 36px;
    }
}

@media (max-width: 480px) {
    .logo {
        padding: 0.4rem 1rem;
    }

    .logo-img {
        height: 40px;
    }

    .hero {
        padding: 2rem 0;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .about, .contact, .methodology, .faq {
        padding: 3rem 0;
    }

    .services {
        padding: 3rem 0 5rem;
    }

    .social-proof {
        padding: 2.5rem 0;
    }

    .back-to-top {
        bottom: 1rem;
        right: 1rem;
    }

    .whatsapp-float {
        bottom: 1rem;
        left: 1rem;
        width: 48px;
        height: 48px;
    }

    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }
}