/* CSS Variables */
:root {
    --color-primary: #007bff; /* Blue */
    --color-secondary: #6c757d; /* Gray */
    --color-accent: #ffc107; /* Yellow for highlights */
    --color-text-dark: #343a40; /* Dark text */
    --color-text-light: #f8f9fa; /* Light text */
    --color-background-light: #ffffff;
    --color-background-dark: #f0f2f5;

    --font-family-base: 'Arial', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    --spacing-unit: 1rem; /* 16px */
    --border-radius-base: 0.25rem; /* 4px */
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text-dark);
    background-color: var(--color-background-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-unit);
    line-height: 1.2;
    color: var(--color-text-dark);
}

h1 { font-size: 2.5rem; } /* 40px */
h2 { font-size: 2rem; }   /* 32px */
h3 { font-size: 1.5rem; } /* 24px */

p {
    margin-bottom: var(--spacing-unit);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #0056b3; /* Darker primary */
}

/* Buttons */
.button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius-base);
    font-size: 1rem;
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.button--primary {
    background-color: var(--color-primary);
    color: var(--color-text-light);
}

.button--primary:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}

.button--large {
    padding: 1rem 2rem;
    font-size: 1.25rem;
}

/* Sections */
.section {
    padding: 4rem 0;
    opacity: 0; /* Initial state for animation */
    transform: translateY(20px); /* Initial state for animation */
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.section:nth-of-type(even) {
    background-color: var(--color-background-dark);
}

.section__title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.section__title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--color-primary);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

/* Header */
.header {
    background-color: var(--color-background-light);
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
}

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

.header__logo {
    max-width: 180px;
    height: auto;
}

/* Hero Section */
.hero {
    background: linear-gradient(to right, var(--color-background-light) 50%, var(--color-background-dark) 50%);
    padding: 4rem 0;
    overflow: hidden; /* To contain image animation */
}

.hero__container {
    display: flex;
    flex-direction: column; /* Mobile first: column layout */
    align-items: center;
    gap: 2rem;
}

.hero__content {
    text-align: center;
    flex: 1;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.8s ease-out 0.2s, transform 0.8s ease-out 0.2s;
}

.hero__content.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.hero__title {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.hero__subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    color: var(--color-text-dark);
}

.hero__image-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.8s ease-out 0.4s, transform 0.8s ease-out 0.4s;
}

.hero__image-wrapper.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.hero__image {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-base);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* Benefits Section */
.benefits__grid {
    display: grid;
    grid-template-columns: 1fr; /* Mobile: single column */
    gap: 2rem;
}

.benefits__item {
    text-align: center;
    background-color: var(--color-background-light);
    padding: 2rem;
    border-radius: var(--border-radius-base);
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefits__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.benefits__icon {
    width: 100px;
    height: 100px;
    margin-bottom: 1rem;
}

.benefits__item-title {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

/* Reviews Section */
.reviews__grid {
    display: grid;
    grid-template-columns: 1fr; /* Mobile: single column */
    gap: 2rem;
}

.review-card {
    background-color: var(--color-background-light);
    padding: 2rem;
    border-radius: var(--border-radius-base);
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.review-card__header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1.5rem;
}

.review-card__avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 0.5rem;
    border: 3px solid var(--color-primary);
}

.review-card__info {
    text-align: center;
}

.review-card__author {
    font-weight: bold;
    margin-bottom: 0.2rem;
    color: var(--color-text-dark);
}

.review-card__company {
    font-size: 0.9rem;
    color: var(--color-secondary);
}

.review-card__quote {
    font-style: italic;
    color: var(--color-text-dark);
    margin: 0;
}

/* FAQ Section */
.faq__accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    background-color: var(--color-background-light);
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius-base);
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq__question {
    display: block;
    padding: 1rem 1.5rem;
    cursor: pointer;
    font-weight: bold;
    color: var(--color-text-dark);
    position: relative;
    user-select: none;
}

.faq__question::after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.faq__item[open] .faq__question::after {
    content: '-';
    transform: translateY(-50%) rotate(180deg);
}

.faq__answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--color-secondary);
}
.faq__answer p {
    margin-bottom: 0; /* Remove bottom margin for last paragraph in answer */
}

/* Call to Action Section */
.cta {
    background: var(--color-primary);
    color: var(--color-text-light);
    text-align: center;
    padding: 5rem 0;
    animation: pulse 2s infinite ease-in-out; /* CTA animation */
}

.cta__container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.cta__stock-info {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta__title {