:root {
    --primary-bg: #000000;
    --primary-text: #FFFFFF;
    --accent-color: #32CD32;
    --secondary-bg: #121212;
    --secondary-text: #A0A0A0;
    --font-family: 'Inter', sans-serif;
    --border-radius: 8px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    background-color: var(--primary-bg);
    color: var(--primary-text);
    margin: 0;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

a:hover,
a:focus {
    text-decoration: none;
    color: var(--accent-color);
}

button {
    cursor: pointer;
    border: none;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: inherit;
}

ul,
ol {
    list-style: none;
    padding: 0;
    margin: 0;
}

@media (max-width: 768px) {
    h1 {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }

    h2 {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }

    h3 {
        font-size: clamp(1.25rem, 5vw, 1.75rem);
    }

    body {
        font-size: 15px;
    }

    .mobile-text-break {
        word-break: break-word;
        overflow-wrap: break-word;
    }
}

@media (min-width: 1024px) {
    body {
        font-size: 16px;
    }
}

/* ===== header_section ===== */
.mobile-menu-transition {
    transition: max-height 0.3s ease-in-out, padding 0.3s ease-in-out
}

/* ===== hero_section ===== */
#hero {
    width: 100%;
    position: relative;
}

.js-hero-btn {
    text-decoration: none;
}

/* ===== article_content ===== */
#main-article article p {
    margin-bottom: 1.5rem
}

#main-article .badge {
    font-weight: 600;
    letter-spacing: 0.05em
}

#main-article h1,
#main-article h2,
#main-article h3 {
    color: var(--primary-text)
}

#main-article p,
#main-article li {
    color: var(--secondary-text)
}

#main-article .btn-primary {
    background-color: var(--accent-color);
    color: var(--primary-bg)
}

#main-article .btn-primary:hover {
    background-color: var(--accent-color);
    opacity: 0.9
}

/* ===== article_cards ===== */
#useful-materials {
    background-color: var(--primary-bg);
}

.w-full-custom {
    width: 100%;
}

.useful-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.useful-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

.modal-box {
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== deal_checklist ===== */
#checklist {
    width: 100%;
}

.checkbox-accent:checked {
    background-color: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
}

/* ===== saving_cards ===== */
#savings-tips {
    background-color: var(--primary-bg);
}

.js-saving-card {
    background-color: var(--secondary-bg);
    border-color: rgba(255, 255, 255, 0.05);
}

.js-saving-card h3 {
    color: var(--primary-text);
}

.js-saving-card p {
    color: var(--secondary-text);
}

/* ===== action_block ===== */
#cta-section {
    width: 100%;
}

.js-cta-btn {
    transition: transform 0.3s ease;
}

/* ===== contact_form_section ===== */
#contacts {
    width: 100%;
}

.js-contact-form input::placeholder,
.js-contact-form textarea::placeholder {
    color: var(--secondary-text);
    opacity: 0.5;
}

.js-contact-form input:focus,
.js-contact-form textarea:focus {
    border-color: var(--accent-color);
}

/* ===== footer_section ===== */
#footer {
    width: 100%;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}