/* ================================================
   Instituto Manuela Melo - CSS Principal
   Design System: Medical Premium, Conversion-Focused
   ================================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #1a5c4c;
    --primary-dark: #134436;
    --primary-light: #2d7a66;
    --accent: #d4a574;
    --accent-light: #e8c9a8;

    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --black: #000000;

    /* Semantic */
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;

    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Borders */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--gray-900);
    line-height: 1.2;
    font-weight: 600;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    margin-bottom: var(--space-4);
}

p:last-child {
    margin-bottom: 0;
}

/* ================================================
   HEADER
   ================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    line-height: 1.2;
}

.nav {
    display: none;
    gap: var(--space-8);
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-base);
}

.nav-link:hover {
    color: var(--primary);
}

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

.header-cta {
    display: none;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: var(--transition-base);
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }

    .header-cta {
        display: inline-flex;
    }

    .nav-toggle {
        display: none;
    }
}

/* Mobile Nav */
@media (max-width: 767px) {
    .nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--space-6);
        gap: var(--space-4);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-slow);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        font-size: 1.125rem;
        padding: var(--space-2) 0;
    }
}

/* ================================================
   BUTTONS
   ================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    white-space: nowrap;
}

.btn i {
    font-size: 1.125rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    box-shadow: 0 4px 14px rgba(26, 92, 76, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 92, 76, 0.5);
}

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

.btn-secondary:hover {
    background: var(--accent-light);
}

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

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

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ================================================
   HERO SECTION
   ================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    z-index: -1;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--primary);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.hero-title {
    margin-bottom: var(--space-6);
}

.highlight {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-8);
    max-width: 500px;
}

.hero-ctas {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.hero-image {
    display: none;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-image-wrapper img {
    width: 100%;
    height: auto;
    aspect-ratio: 4/5;
    object-fit: cover;
}

.hero-badge-float {
    position: absolute;
    bottom: var(--space-6);
    left: var(--space-6);
    background: var(--white);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
}

.hero-badge-float i {
    color: var(--warning);
}

@media (min-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr 1fr;
    }

    .hero-ctas {
        flex-direction: row;
    }

    .hero-image {
        display: block;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ================================================
   TRUST BADGES
   ================================================ */
.trust-section {
    background: var(--white);
    padding: var(--space-8) 0;
    border-bottom: 1px solid var(--gray-100);
}

.trust-badges {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.trust-badge i {
    font-size: 1.5rem;
    color: var(--primary);
}

.trust-badge span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
}

@media (min-width: 768px) {
    .trust-badges {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ================================================
   SECTION HEADERS
   ================================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-4);
    background: rgba(26, 92, 76, 0.1);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.section-title {
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ================================================
   PAIN SECTION
   ================================================ */
.pain-section {
    padding: var(--space-20) 0;
    background: var(--gray-50);
}

.pain-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.pain-card {
    background: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.pain-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.pain-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
}

.pain-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.pain-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-2);
}

.pain-card p {
    color: var(--gray-500);
    font-size: 0.9375rem;
}

@media (min-width: 768px) {
    .pain-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .pain-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.pain-solution {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-xl);
    padding: var(--space-12);
    text-align: center;
}

.solution-content h3 {
    color: var(--white);
    font-size: 1.75rem;
    margin-bottom: var(--space-4);
}

.solution-content p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto var(--space-8);
}

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

.solution-content .btn:hover {
    background: var(--gray-100);
}

/* ================================================
   TECHNIQUE SECTION
   ================================================ */
.technique-section {
    padding: var(--space-20) 0;
}

.technique-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}

.technique-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.technique-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.technique-step {
    display: flex;
    gap: var(--space-4);
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-content h4 {
    margin-bottom: var(--space-2);
}

.step-content p {
    color: var(--gray-500);
    font-size: 0.9375rem;
}

.technique-benefits {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.benefit-item i {
    color: var(--primary);
    font-size: 1.25rem;
}

.benefit-item span {
    font-weight: 600;
    color: var(--gray-700);
}

@media (min-width: 768px) {
    .technique-content {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }

    .technique-benefits {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* ================================================
   RESULTS SECTION
   ================================================ */
.results-section {
    padding: var(--space-20) 0;
    background: var(--gray-900);
}

.results-section .section-title {
    color: var(--white);
}

.results-section .section-subtitle {
    color: var(--gray-400);
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

.result-card {
    background: var(--gray-800);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

/* Before/After Slider */
.before-after-slider {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    cursor: ew-resize;
    user-select: none;
}

.slider-image {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.slider-image.before {
    z-index: 1;
    clip-path: inset(0 50% 0 0);
}

.slider-image.after {
    z-index: 0;
}

.slider-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slider-image .label {
    position: absolute;
    bottom: var(--space-4);
    padding: var(--space-2) var(--space-4);
    background: rgba(0, 0, 0, 0.7);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.slider-image.before .label {
    left: var(--space-4);
}

.slider-image.after .label {
    right: var(--space-4);
}

.slider-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background: var(--white);
    z-index: 2;
    transform: translateX(-50%);
}

.handle-line {
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
}

.handle-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.handle-circle i {
    color: var(--primary);
    font-size: 1.25rem;
}

.result-info {
    padding: var(--space-6);
    text-align: center;
}

.result-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--primary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-3);
}

.result-info h4 {
    color: var(--white);
    margin-bottom: var(--space-2);
}

.result-info p {
    color: var(--gray-400);
    font-size: 0.875rem;
    margin-bottom: var(--space-3);
}

.grafts {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent);
}

.results-cta {
    text-align: center;
}

.results-cta p {
    color: var(--gray-400);
    margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
    .results-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ================================================
   CALCULATOR SECTION
   ================================================ */
.calculator-section {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
}

.calculator-info {
    color: var(--white);
}

.calculator-info .section-tag {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.calculator-info h2 {
    color: var(--white);
    margin-bottom: var(--space-4);
}

.calculator-info > p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
}

.calculator-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.calculator-features .feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.calculator-features .feature i {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.calculator-features .feature span {
    font-weight: 500;
}

.calculator-form {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-2);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: var(--space-4);
    font-size: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 92, 76, 0.1);
}

.form-group input::placeholder {
    color: var(--gray-400);
}

.form-disclaimer {
    font-size: 0.75rem;
    color: var(--gray-500);
    text-align: center;
    margin-top: var(--space-4);
}

.form-disclaimer i {
    color: var(--primary);
}

@media (min-width: 768px) {
    .calculator-wrapper {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
}

/* ================================================
   TESTIMONIALS SECTION
   ================================================ */
.testimonials-section {
    padding: var(--space-20) 0;
    background: var(--gray-50);
}

.rating-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-4);
}

.stars {
    display: flex;
    gap: var(--space-1);
}

.stars i {
    color: var(--warning);
}

.rating-display span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.testimonial-video {
    position: relative;
    aspect-ratio: 16/9;
}

.testimonial-video img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.play-btn i {
    color: var(--primary);
    font-size: 1.5rem;
    margin-left: 4px;
}

.play-btn:hover {
    transform: translate(-50%, -50%) scale(1.1);
    background: var(--primary);
}

.play-btn:hover i {
    color: var(--white);
}

.testimonial-content {
    padding: var(--space-6);
}

.testimonial-text {
    font-size: 1rem;
    font-style: italic;
    color: var(--gray-600);
    margin-bottom: var(--space-4);
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.testimonial-author strong {
    color: var(--gray-900);
}

.testimonial-author span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ================================================
   ABOUT SECTION
   ================================================ */
.about-section {
    padding: var(--space-20) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.about-badge {
    position: absolute;
    bottom: var(--space-6);
    right: var(--space-6);
    background: var(--primary);
    color: var(--white);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.badge-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-text .section-tag {
    margin-bottom: var(--space-2);
}

.about-text h2 {
    margin-bottom: var(--space-4);
}

.about-lead {
    font-size: 1.25rem;
    color: var(--gray-600);
    font-weight: 500;
    margin-bottom: var(--space-6);
}

.about-text > p {
    color: var(--gray-500);
    margin-bottom: var(--space-8);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.about-feature {
    display: flex;
    gap: var(--space-4);
}

.about-feature i {
    width: 48px;
    height: 48px;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.about-feature strong {
    display: block;
    color: var(--gray-900);
    margin-bottom: var(--space-1);
}

.about-feature span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.about-credentials {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.credential {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--gray-100);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
}

.credential i {
    color: var(--primary);
}

@media (min-width: 768px) {
    .about-content {
        grid-template-columns: 1fr 1.5fr;
        align-items: center;
    }

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

/* ================================================
   FAQ SECTION
   ================================================ */
.faq-section {
    padding: var(--space-20) 0;
    background: var(--gray-50);
}

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

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5) var(--space-6);
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    text-align: left;
    transition: var(--transition-base);
}

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

.faq-question i {
    color: var(--primary);
    transition: var(--transition-base);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 var(--space-6) var(--space-5);
    color: var(--gray-500);
}

/* ================================================
   CONTACT SECTION
   ================================================ */
.contact-section {
    padding: var(--space-20) 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
}

.contact-info .section-tag {
    margin-bottom: var(--space-2);
}

.contact-info h2 {
    margin-bottom: var(--space-4);
}

.contact-info > p {
    color: var(--gray-500);
    margin-bottom: var(--space-8);
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.contact-item {
    display: flex;
    gap: var(--space-4);
}

.contact-item > i {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    color: var(--gray-700);
    margin-bottom: var(--space-1);
}

.contact-item a,
.contact-item span {
    color: var(--gray-500);
    font-size: 0.9375rem;
}

.contact-item a:hover {
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-links a {
    width: 48px;
    height: 48px;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    font-size: 1.25rem;
    transition: var(--transition-base);
}

.social-links a:hover {
    background: var(--primary);
    color: var(--white);
}

.contact-map {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.contact-map iframe {
    display: block;
}

@media (min-width: 768px) {
    .contact-wrapper {
        grid-template-columns: 1fr 1fr;
    }
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-10);
}

.footer-brand .logo {
    margin-bottom: var(--space-4);
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-links h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: var(--space-4);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: var(--space-4);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.9375rem;
    margin-bottom: var(--space-2);
}

.footer-contact p i {
    color: var(--primary);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--gray-800);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
}

.disclaimer {
    color: var(--gray-600);
    margin-top: var(--space-2);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

/* ================================================
   WHATSAPP FLOAT
   ================================================ */
.whatsapp-float {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition-base);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: var(--gray-800);
    color: var(--white);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: var(--transition-base);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--gray-800);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* ================================================
   ANIMATIONS
   ================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate {
    animation: fadeInUp 0.6s ease forwards;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}