/* ==========================================
   1. DESIGN TOKENS (GLOBALE VARIABLEN)
   ========================================== */
:root {
    --color-primary: #2c4a3e;
    --color-primary-hover: #1e332b;
    --color-accent: #557a62;
    --color-accent-light: #eaf1ed;
    
    --color-bg: #f8f6f0;
    --color-surface: #ffffff;
    --color-border: #e6eae8;
    
    --color-text-main: #2b2b2b;
    --color-text-muted: #66706a;
    
    --font-family-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --radius-sm: 8px;
    --radius-md: 16px;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 30px -5px rgba(44, 74, 62, 0.08);
    --shadow-hover: 0 20px 35px -8px rgba(44, 74, 62, 0.15);
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================
   2. RESET & BASE (MOBILE DEFAULT)
   ========================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family-base);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    -webkit-font-smoothing: antialiased;
    /* Prevents unwanted horizontal scroll on mobile */
    overflow-x: hidden;
}

/* ==========================================
   3. HEADER (MOBILE DEFAULT)
   ========================================== */
.site-header {
    padding: 24px 16px 12px;
    display: flex;
    justify-content: center;
    width: 100%;
}

.brand-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-primary);
    min-height: 44px; /* Touch target minimum */
}

.brand-icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.brand-title {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* ==========================================
   4. LAYOUT & CONTAINERS (MOBILE DEFAULT)
   ========================================== */
.container {
    width: 100%;
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px; /* Tighter mobile card gap */
}

/* Base Card (Compact padding for phone screens) */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: 20px 16px;
    box-shadow: var(--shadow-sm);
}

/* Base Grid (Single column on mobile) */
.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    width: 100%;
}

/* ==========================================
   5. FOOTER (MOBILE DEFAULT)
   ========================================== */
footer {
    margin-top: auto;
    padding: 24px 16px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

footer a {
    color: var(--color-accent);
    text-decoration: none;
    padding: 6px; /* Expands touch area */
}

/* ==========================================
   6. TABLET & DESKTOP ENHANCEMENTS (min-width)
   ========================================== */
@media (min-width: 600px) {
    .site-header {
        padding: 40px 20px 20px;
    }

    .brand-link {
        gap: 14px;
    }

    .brand-icon {
        width: 42px;
        height: 42px;
    }

    .brand-title {
        font-size: 2.4rem;
    }

    .container {
        max-width: 800px;
        padding: 24px;
        gap: 24px;
    }

    .card {
        padding: 32px 28px;
        box-shadow: var(--shadow-md);
    }

    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}