/* ============================================================
   DOGMIND — ВОЗРАСТНОЕ РАЗВИТИЕ СОБАК
   Palette from design spec
   ============================================================ */

:root {
    --bg-main: #F9F6F0;
    --bg-white: #FFFFFF;
    --bg-dark-green: #5D6855;
    --bg-light-olive: #A8B3A0;
    --bg-footer: #E8DFC9;
    --text-dark: #2C2C2C;
    --text-gray: #757575;
    --accent-badge: #E8DFC9;
    --border-soft: #CCCCCC;
    --radius-card: 24px;
    --radius-button: 40px;

    /* Puppy / teen / senior icon palette */
    --puppy-icon-bg:  #EDE8DE;
    --puppy-icon-clr: #5D6855;

    --teen-icon-bg:   #F0D8D4;
    --teen-icon-clr:  #B06060;

    --senior-icon-bg:  #C8D8C0;
    --senior-icon-clr: #4D7A50;
}

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

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scroll-behavior: smooth;
}

body {
    font-family: "Nunito", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg-main);
    color: var(--text-dark);
    min-height: 100vh;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul { list-style: none; }
input, button, textarea, select { font: inherit; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; line-height: 1.2; }
p, li { text-wrap: pretty; }
button { cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }

::selection {
    background: color-mix(in srgb, var(--bg-dark-green) 18%, transparent);
    color: var(--text-dark);
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: calc(24px + env(safe-area-inset-top));
    padding-top: calc(24px + constant(safe-area-inset-top));
    padding-bottom: 24px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    text-decoration: none;
}

.logo-circle {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    background: #D9D9D9;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.logo-circle img {
    height: 70%;
}

.brand-name {
    font-size: 18px;
    font-weight: 600;
}

.nav {
    display: flex;
    gap: 32px;
    font-size: 15px;
}

.nav a {
    text-decoration: none;
    color: var(--text-dark);
}

.nav a:hover {
    color: var(--bg-light-olive);
}

.header-contacts-btn {
    background: var(--bg-light-olive);
    color: #FFFFFF;
    border-radius: var(--radius-button);
    padding: 20px 24px;
    border: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
}

/* ============================================================
   HERO / BREADCRUMB
   ============================================================ */
.hero-section {
    padding: 48px 0 56px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: var(--accent-badge);
    padding: 8px 20px;
    border-radius: var(--radius-button);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-gray);
    margin-bottom: 28px;
    border: 1px solid color-mix(in srgb, var(--border-soft) 60%, transparent);
}

.hero-title {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 20px;
    letter-spacing: -0.015em;
}

.hero-text {
    font-size: 17px;
    line-height: 1.6;
    color: var(--text-gray);
    max-width: 52ch;
    margin: 0 auto;
}

/* ============================================================
   ENERGY / CHART SECTION
   ============================================================ */
.energy-section {
    padding: 0 0 32px;
}

.topic-card {
    background: var(--bg-white);
    border-radius: var(--radius-card);
    padding: 36px 40px;
}

.energy-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.topic-pretitle {
    font-size: 13px;
    font-weight: 700;
    color: var(--bg-light-olive);
    margin-bottom: 6px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.topic-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.topic-text {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.55;
    margin-bottom: 20px;
}

.chart-wrap {
    position: relative;
    height: 150px;
}

.chart-wrap canvas {
    width: 100% !important;
    height: 100% !important;
}

.chart-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 11px;
    color: color-mix(in srgb, var(--text-gray) 60%, transparent);
}

/* Tip card */
.tip-card {
    background: color-mix(in srgb, var(--accent-badge) 55%, var(--bg-white));
    border-radius: 16px;
    padding: 20px 24px;
}

.tip-card__header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--bg-dark-green);
}

.tip-card__label {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-dark);
}

.tip-card__text {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* ============================================================
   AGE CARDS
   ============================================================ */
.age-cards-section {
    padding: 8px 0 40px;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.age-card {
    background: var(--bg-white);
    border-radius: var(--radius-card);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: box-shadow 180ms ease, transform 180ms ease;
}

.age-card:hover {
    box-shadow: 0 8px 24px rgba(44,44,44,0.08);
    transform: translateY(-2px);
}

.age-card--active {
    box-shadow:
        0 8px 28px rgba(44, 44, 44, 0.12),
        0 0 0 1px color-mix(in srgb, var(--text-dark) 10%, transparent);
}

.age-card--active:hover {
    transform: translateY(-2px);
}

/* Icon */
.topic-icon {
    width: 56px;
    height: 56px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.topic-icon--puppy  { background: var(--puppy-icon-bg); color: var(--puppy-icon-clr); }
.topic-icon--teen   { background: var(--teen-icon-bg);  color: var(--teen-icon-clr); }
.topic-icon--senior { background: var(--senior-icon-bg); color: var(--senior-icon-clr); }

.age-card__title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
}

.age-card__desc {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.55;
}

/* Aspects */
.aspect-label {
    font-size: 11px;
    font-weight: 700;
    color: color-mix(in srgb, var(--text-gray) 70%, transparent);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 6px;
    display: block;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-button);
    font-size: 12px;
    font-weight: 600;
    font-family: inherit;
}

.tag--puppy  { background: var(--puppy-icon-bg);  color: var(--puppy-icon-clr); }
.tag--teen   { background: var(--teen-icon-bg);   color: var(--teen-icon-clr); }
.tag--senior { background: var(--senior-icon-bg); color: var(--senior-icon-clr); }

/* Know block */
.know-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-gray);
    display: block;
    margin-bottom: 4px;
}

.know-text {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.55;
}

/* Card button */
.age-card__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 11px 20px;
    border-radius: var(--radius-button);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    width: 100%;
    margin-top: auto;
    border: none;
    cursor: pointer;
    transition: opacity 160ms ease, transform 160ms ease;
}

.age-card__btn--puppy  { background: var(--puppy-icon-bg);  color: var(--puppy-icon-clr); }
.age-card__btn--teen   { background: var(--teen-icon-bg);   color: var(--teen-icon-clr); }
.age-card__btn--senior { background: var(--senior-icon-bg); color: var(--senior-icon-clr); }

.age-card__btn:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

/* ============================================================
   PUPPY DETAIL SECTION
   ============================================================ */
.detail-section {
    padding: 20px 0 80px;
}

.detail-section.detail-panel:not(.is-active) {
    display: none;
}

.detail-panel {
    scroll-margin-top: 88px;
}

.detail-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.detail-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: var(--puppy-icon-bg);
    color: var(--puppy-icon-clr);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.detail-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
}

.detail-hero-img {
    border-radius: var(--radius-card);
    overflow: hidden;
    height: 400px;
    background: #D9D9D9;
    margin-bottom: 24px;
}

.detail-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-blocks {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.info-block {
    background: var(--bg-white);
    border-radius: var(--radius-card);
    padding: 24px 28px;
}

.info-block__header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--bg-dark-green);
}

.info-block__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
}

.info-block__text {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.65;
}

.puppies-text {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.65;
    margin: 0 0 10px;
}

/* Checklist */
.checklist-card {
    background: var(--bg-white);
    border-radius: var(--radius-card);
    padding: 24px 28px;
}

.checklist-card__title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-gray);
    margin-bottom: 16px;
}

.checklist {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checklist__item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 500;
}

.checklist__item:has(.checklist__item-body) {
    align-items: flex-start;
}

.checklist__item-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.65em;
}

.checklist__item-body .know-text {
    margin: 0;
}

.checklist__item-body .puppies-text {
    margin-top: 10px;
}


.checklist__check {
    color: var(--bg-dark-green);
    flex-shrink: 0;
}

.checklist__item:has(.checklist__item-body) .checklist__check {
    margin-top: 2px;
}

/* Related */
.related-topics {
    padding-top: 8px;
}

.related-topics__label {
    font-size: 12px;
    color: color-mix(in srgb, var(--text-gray) 65%, transparent);
    font-weight: 700;
    display: block;
    margin-bottom: 10px;
    letter-spacing: 0.02em;
}

.related-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.related-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-gray);
    font-weight: 500;
    padding: 7px 16px;
    background: var(--bg-white);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-button);
    transition: border-color 160ms ease, color 160ms ease;
}

.related-link:hover {
    border-color: var(--bg-dark-green);
    color: var(--bg-dark-green);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer-wrapper {
    background: var(--bg-footer);
    margin-top: 80px;
}

.footer {
    padding-block: 60px 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo-block {
    max-width: 250px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: #D9D9D9;
}

.footer-logo-text {
    font-weight: 700;
}

.footer-description {
    font-size: 13px;
    color: var(--text-gray);
    margin-top: 16px;
    line-height: 1.5;
}

.footer-column-title {
    font-weight: 600;
    margin-bottom: 16px;
    font-size: 14px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 14px;
}

.footer-links a {
    color: var(--text-gray);
    text-decoration: none;
}

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

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-social-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #D9D9D9;
}

.footer-divider {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    margin-bottom: 24px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-gray);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
    .energy-grid { grid-template-columns: 1fr; }
    .topics-grid { grid-template-columns: 1fr; }
    .footer-top  { grid-template-columns: 1fr 1fr; }
    .nav         { display: none; }
}

@media (max-width: 640px) {
    .container   { padding: 0 20px; }
    .footer-top  { grid-template-columns: 1fr; }
    .detail-hero-img { height: 180px; }
}