/* ============================================
   HIM - Responsive Styles (Full Mobile-First)
   ============================================ */

/* === BASE: All screens === */
*, *::before, *::after { box-sizing: border-box; }
img, canvas, video { max-width: 100%; height: auto; }

/* === Desktop XL (1440px+) === */
@media (min-width: 1440px) {
    .container { max-width: 1400px; }
}

/* === Desktop (1024px - 1439px) === */
@media (max-width: 1439px) {
    h1 { font-size: 42px; }
    .container { max-width: 100%; padding: 0 24px; }
}

/* === Tablet Landscape (1024px) === */
@media (max-width: 1023px) {
    h1 { font-size: 36px; }
    h2 { font-size: 30px; }
    .header-nav { display: none; }
    .sidebar-toggle { display: flex; }
    .mobile-nav { display: flex; }
    .authenticated .main-content { padding-bottom: 80px; }
    .profile-name { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .footer-brand { grid-column: 1 / -1; }

    /* Grids: 2 columns on tablet */
    .grid-3 { grid-template-columns: repeat(2, 1fr) !important; }
    .grid-4 { grid-template-columns: repeat(2, 1fr) !important; }

    /* Journal: stack on tablet */
    .journal-split { flex-direction: column !important; }

    /* Tracker: allow wrapping */
    .tracker-grid { grid-template-columns: repeat(2, 1fr) !important; }

    /* Insights charts: stack */
    .insights-chart-grid { grid-template-columns: 1fr !important; }
}

/* === Tablet Portrait (768px) === */
@media (max-width: 767px) {
    h1 { font-size: 30px; }
    h2 { font-size: 26px; }
    h3 { font-size: 20px; }

    .container { padding: 0 16px; }
    .card, .glass-insight-card { padding: 20px !important; border-radius: 16px !important; }
    .auth-card { padding: 32px 24px; }

    /* All grids collapse to 1 col */
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr !important; }
    .form-row { grid-template-columns: 1fr; }

    /* Challenges: 1 column on mobile */
    .challenges-grid { grid-template-columns: 1fr !important; }

    /* Journal: full stack */
    .journal-split { flex-direction: column !important; }
    .journal-split > div { min-width: 100% !important; width: 100% !important; }

    /* Tracker: full stack */
    .tracker-grid { grid-template-columns: 1fr !important; }

    /* Insights: full stack */
    .insights-chart-grid { grid-template-columns: 1fr !important; }

    .header-nav-guest { display: none; }
    .mobile-menu-btn { display: flex; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }

    /* Mood selector: wrap emojis */
    .mood-selector { flex-wrap: wrap !important; justify-content: center !important; gap: 8px !important; }

    /* Summary stat cards */
    .stat-number { font-size: 36px !important; }
}

/* === Mobile Small (576px) === */
@media (max-width: 576px) {
    h1 { font-size: 26px; }
    h2 { font-size: 22px; }
    h3 { font-size: 18px; }

    .container { padding: 0 12px; }
    .card { padding: 16px !important; border-radius: 14px !important; }
    .btn-primary { padding: 12px 20px; font-size: 15px; }
    .btn-lg { padding: 14px 28px; font-size: 16px; }
    .auth-card { padding: 24px 20px; }
    .notif-dropdown { width: 280px; right: -48px; }
    .flash-message { margin: 0 12px 12px; }

    /* Charts: minimum height */
    .chart-container { height: 220px !important; }
    .symptom-container { height: 220px !important; }

    /* Game badges: 2 per row */
    .grid-4 { grid-template-columns: repeat(2, 1fr) !important; }

    /* Header logo text */
    .logo-text { font-size: 20px !important; }

    /* Inline flex rows: stack */
    .page-header-row { flex-direction: column !important; align-items: center !important; gap: 12px !important; }

    /* Period info items */
    .info-item { padding: 12px !important; }
}

/* === Extra Small (400px) === */
@media (max-width: 400px) {
    h2 { font-size: 20px; }
    .btn { font-size: 14px; padding: 10px 18px; }
    .mood-emoji { width: 44px !important; height: 44px !important; font-size: 24px !important; }
}