/* ==========================================================================
   Kotwica Spokoju - Główny Arkusz Stylów (css/main.css)
   ========================================================================== */

/* 1. Zmienne globalne i Motyw (Design Tokens) */
:root {
    --bg-main: #020617;        /* slate-950 */
    --bg-header: #0f172a;      /* slate-900 */
    --bg-card: #0f172a;        /* slate-900 */
    --bg-card-hover: #131e32;  /* slate-850 */
    
    --border-color: #1e293b;   /* slate-800 */
    --border-accent: rgba(45, 212, 191, 0.3); /* teal-400 / 30% */

    --text-primary: #f8fafc;   /* slate-50 */
    --text-secondary: #94a3b8; /* slate-400 */
    --text-accent: #2dd4bf;    /* teal-400 */

    --color-teal: #14b8a6;
    --color-teal-light: #2dd4bf;
    --color-rose: #f43f5e;
    --color-rose-light: #fda4af;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --radius-card: 1rem;
    --radius-btn: 0.75rem;
    --transition-fast: 0.2s ease;
}

/* 2. Reset i Baza */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Zapobieganie przypadkowemu zaznaczaniu tekstu podczas szybkiego klikania w stresie */
.no-select {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

/* 3. Nagłówek (Header) */
.main-header {
    width: 100%;
    background-color: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 30;
    padding: 0.875rem 1rem;
}

.header-container {
    max-width: 42rem;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 9999px;
    background-color: rgba(20, 184, 166, 0.15);
    border: 1px solid rgba(45, 212, 191, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-accent);
}

.logo-text {
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.025em;
}

/* 4. Kontener Główny SPA */
.app-container {
    max-width: 42rem;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem 1rem 6rem 1rem;
    flex: 1;
}

/* 5. Kafelki Ścieżek (Siatka 01-15) */
.module-card {
    display: block;
    padding: 1rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-card);
    text-decoration: none;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.module-card:hover, .module-card:focus {
    border-color: var(--border-accent);
    background-color: var(--bg-card-hover);
}

.module-card-title {
    font-weight: 700;
    color: var(--text-accent);
    font-size: 1rem;
}

.module-card-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* 6. Animacje Wizualizatora Oddechu */
@keyframes breathePulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.4); opacity: 1; }
}

.breath-circle-inhale {
    transition: transform 4s cubic-bezier(0.4, 0, 0.2, 1), background-color 4s ease;
    transform: scale(1.35);
    background-color: rgba(45, 212, 191, 0.3);
    box-shadow: 0 0 40px rgba(45, 212, 191, 0.4);
}

.breath-circle-hold {
    transition: transform 0.2s ease, background-color 0.2s ease;
    transform: scale(1.35);
    background-color: rgba(56, 189, 248, 0.35);
    box-shadow: 0 0 50px rgba(56, 189, 248, 0.5);
}

.breath-circle-exhale {
    transition: transform 6s cubic-bezier(0.4, 0, 0.2, 1), background-color 6s ease;
    transform: scale(1);
    background-color: rgba(20, 184, 166, 0.15);
    box-shadow: 0 0 20px rgba(20, 184, 166, 0.15);
}

.breath-circle-idle {
    transform: scale(1);
    background-color: rgba(30, 41, 59, 0.7);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.05);
}

/* 7. Stopka Dolna */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 1rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
}