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

:root {
    --color-primary: #2E7D32;
    --color-primary-hover: #1B5E20;
    --color-primary-light: #E8F5E9;
    --color-primary-pale: #F1F8E9;
    --color-accent: #66BB6A;
    --color-accent-light: #A5D6A7;
    --color-success: #43A047;
    --color-warning: #F9A825;
    --color-error: #D32F2F;
    --color-error-light: #FFEBEE;
    --color-white: #FFFFFF;
    --color-off-white: #FAFCFA;
    --color-gray-50: #F5F7F6;
    --color-gray-100: #EDF0EE;
    --color-gray-200: #E0E4E1;
    --color-gray-300: #C4CAC5;
    --color-gray-400: #9EA69F;
    --color-gray-500: #6C756D;
    --color-gray-600: #4A524B;
    --color-gray-700: #2D3436;
    --color-gray-800: #1B1B1B;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --max-width: 1200px;
    --max-width-narrow: 720px;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: var(--font-weight-regular);
    color: var(--color-gray-700);
    background-color: var(--color-white);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-main {
    flex: 1;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

h1, h2, h3, h4, h5, h6 {
    color: var(--color-gray-800);
    line-height: 1.2;
    font-weight: var(--font-weight-bold);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.375rem, 3vw, 2rem); }
h3 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container--narrow {
    max-width: var(--max-width-narrow);
}

/* ========== BUTTONS ========== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

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

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

.btn--outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

.btn--sm {
    padding: 8px 18px;
    font-size: 0.875rem;
}

.btn--lg {
    padding: 16px 32px;
    font-size: 1rem;
}

/* ========== HEADER ========== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    transition: box-shadow var(--transition-base);
}

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

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.site-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.site-logo img {
    width: 160px;
    height: auto;
}

.site-nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.site-nav__link {
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-600);
    padding: 4px 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link--active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle__bar {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-gray-700);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.nav-toggle--active .nav-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle--active .nav-toggle__bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle--active .nav-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ========== HERO ========== */

.hero {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-off-white) 50%, var(--color-primary-pale) 100%);
    padding: var(--spacing-4xl) 0;
    text-align: center;
}

.hero__title {
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-gray-500);
    max-width: 640px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.6;
}

.hero__form {
    max-width: 480px;
    margin: 0 auto;
}

/* ========== SECTIONS ========== */

.section {
    padding: var(--spacing-3xl) 0;
}

.section--alt {
    background-color: var(--color-gray-50);
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section__title {
    margin-bottom: var(--spacing-sm);
}

.section__subtitle {
    color: var(--color-gray-500);
    font-size: 1.0625rem;
    max-width: 560px;
    margin: 0 auto;
}

/* ========== FEATURE CARDS ========== */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-accent-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-card__icon {
    width: 48px;
    height: 48px;
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.feature-card__title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card__text {
    color: var(--color-gray-500);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ========== BLOG CARDS ========== */

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.post-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.post-card__image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-card__body {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.post-card__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--color-gray-400);
}

.post-card__category {
    display: inline-block;
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: 2px 10px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.post-card__title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.35;
}

.post-card__title a {
    color: var(--color-gray-800);
}

.post-card__title a:hover {
    color: var(--color-primary);
}

.post-card__excerpt {
    color: var(--color-gray-500);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.post-card__link {
    font-weight: var(--font-weight-semibold);
    font-size: 0.9375rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.post-card__link::after {
    content: "\2192";
    transition: transform var(--transition-fast);
}

.post-card__link:hover::after {
    transform: translateX(4px);
}

/* ========== SINGLE POST ========== */

.post-header {
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    text-align: center;
    background: var(--color-gray-50);
}

.post-header__category {
    display: inline-block;
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: 4px 14px;
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.post-header__title {
    max-width: 720px;
    margin: 0 auto var(--spacing-md);
}

.post-header__meta {
    color: var(--color-gray-400);
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.post-header__meta span::before {
    content: "\00b7";
    margin-right: var(--spacing-md);
}

.post-header__meta span:first-child::before {
    display: none;
}

.post-content {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-md);
}

.post-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.75;
}

.post-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.post-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.post-content ul,
.post-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.post-content li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.75;
}

.post-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-gray-50);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: var(--spacing-md);
    font-style: italic;
    color: var(--color-gray-600);
}

.post-content strong {
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
}

.post-disclaimer {
    background: var(--color-primary-pale);
    border: 1px solid var(--color-accent-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
}

.post-related {
    border-top: 1px solid var(--color-gray-200);
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.post-related__title {
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
}

/* ========== SUBSCRIBE FORM ========== */

.subscribe-form__group {
    display: flex;
    gap: var(--spacing-sm);
}

.subscribe-form__input {
    flex: 1;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast);
    background: var(--color-white);
    color: var(--color-gray-700);
}

.subscribe-form__input:focus {
    border-color: var(--color-primary);
}

.subscribe-form__input::placeholder {
    color: var(--color-gray-400);
}

.subscribe-form__btn {
    flex-shrink: 0;
}

.subscribe-form__note {
    margin-top: var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--color-gray-400);
}

.subscribe-section {
    background: var(--color-primary-light);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.subscribe-section__inner {
    max-width: 520px;
    margin: 0 auto;
}

.subscribe-section__title {
    margin-bottom: var(--spacing-sm);
}

.subscribe-section__text {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-lg);
}

/* ========== EMAIL INFO ========== */

.email-info {
    padding: var(--spacing-3xl) 0;
}

.email-info__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
}

.email-info__item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.email-info__icon {
    width: 40px;
    height: 40px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-primary);
    font-size: 1.125rem;
}

.email-info__text h4 {
    font-size: 0.9375rem;
    margin-bottom: 2px;
}

.email-info__text p {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    line-height: 1.5;
}

/* ========== FORMS (CONTACT, ETC) ========== */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-weight: var(--font-weight-medium);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-gray-700);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast);
    background: var(--color-white);
    color: var(--color-gray-700);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--color-primary);
}

.form-textarea {
    resize: vertical;
    min-height: 140px;
}

/* ========== ALERTS ========== */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.9375rem;
}

.alert--success {
    background: var(--color-primary-light);
    color: var(--color-primary-hover);
    border: 1px solid var(--color-accent-light);
}

.alert--error {
    background: var(--color-error-light);
    color: var(--color-error);
    border: 1px solid #FFCDD2;
}

.alert--info {
    background: #E3F2FD;
    color: #1565C0;
    border: 1px solid #BBDEFB;
}

/* ========== PAGE LAYOUTS ========== */

.page-header {
    background: var(--color-gray-50);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    border-bottom: 1px solid var(--color-gray-200);
}

.page-header__title {
    margin-bottom: var(--spacing-sm);
}

.page-header__subtitle {
    color: var(--color-gray-500);
    font-size: 1.0625rem;
    max-width: 560px;
    margin: 0 auto;
}

.page-body {
    padding: var(--spacing-2xl) 0;
}

.page-body--narrow {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-md);
}

/* ========== LEGAL PAGES ========== */

.legal-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    font-size: 1.375rem;
}

.legal-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.legal-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.75;
    color: var(--color-gray-600);
}

.legal-content ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.legal-content li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.75;
    color: var(--color-gray-600);
}

.legal-content a {
    text-decoration: underline;
}

.legal-date {
    font-size: 0.875rem;
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-xl);
}

/* ========== STATUS CARD ========== */

.status-card {
    max-width: 520px;
    margin: 0 auto;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
}

.status-card__icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.75rem;
}

.status-card__icon--success {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.status-card__icon--error {
    background: var(--color-error-light);
    color: var(--color-error);
}

.status-card__icon--info {
    background: #E3F2FD;
    color: #1565C0;
}

.status-card__title {
    margin-bottom: var(--spacing-sm);
}

.status-card__text {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

/* ========== ABOUT PAGE ========== */

.about-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    padding: var(--spacing-3xl) 0;
}

.about-hero__image {
    border-radius: var(--radius-lg);
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-hero__content h1 {
    margin-bottom: var(--spacing-md);
}

.about-hero__content p {
    color: var(--color-gray-500);
    line-height: 1.75;
    margin-bottom: var(--spacing-md);
}

.about-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.about-value {
    text-align: center;
    padding: var(--spacing-xl);
}

.about-value__icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 1.5rem;
}

.about-value__title {
    margin-bottom: var(--spacing-sm);
}

.about-value__text {
    color: var(--color-gray-500);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ========== FOOTER ========== */

.site-footer {
    background: var(--color-gray-800);
    color: var(--color-gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.site-footer__logo {
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
}

.site-footer__tagline {
    font-size: 0.9375rem;
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-sm);
}

.site-footer__email a {
    color: var(--color-accent-light);
    font-size: 0.9375rem;
}

.site-footer__email a:hover {
    color: var(--color-white);
}

.site-footer__heading {
    color: var(--color-white);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.site-footer__links ul {
    list-style: none;
}

.site-footer__links li {
    margin-bottom: var(--spacing-sm);
}

.site-footer__links a {
    color: var(--color-gray-400);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.site-footer__links a:hover {
    color: var(--color-white);
}

.site-footer__bottom {
    border-top: 1px solid var(--color-gray-600);
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-gray-500);
}

/* ========== RESPONSIVE ========== */

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

    .site-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--color-white);
        border-bottom: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-md);
    }

    .site-nav--open {
        display: block;
    }

    .site-nav__list {
        flex-direction: column;
        gap: 0;
    }

    .site-nav__link {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
        border-bottom: none;
    }

    .site-nav__cta {
        margin-top: var(--spacing-sm);
        text-align: center;
    }

    .hero {
        padding: var(--spacing-2xl) 0;
    }

    .subscribe-form__group {
        flex-direction: column;
    }

    .about-hero {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .about-hero__image {
        height: 250px;
    }

    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

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

    .post-header__meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .post-header__meta span::before {
        display: none;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .email-info__grid {
        grid-template-columns: 1fr;
    }
}