/* ==========================================================================
   assets/css/components.css - UI-Elemente & Mobile Stack (Schritt 1.1)
   ========================================================================== */

/* Header & Top Bar */
.app-header {
    background-color: var(--color-white);
    box-shadow: 0 2px 4px rgba(20, 43, 73, 0.05);
    height: 60px;
    position: relative;
    z-index: var(--z-index-header);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
}

.app-header nav {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary-navy);
    line-height: 1.2;
}

.brand .claim {
    font-size: 0.75rem;
    color: var(--color-accent-orange);
    display: block;
}

/* Globale Buttons */
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.btn-primary {
    background-color: var(--color-accent-orange);
    color: var(--color-white);
    font-weight: 700;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-soft);
    transition: transform 0.1s ease, background-color 0.2s;
}

.btn-primary:active {
    transform: scale(0.98);
}

/* Mobile Stack Content Area */
.app-main {
    display: flex;
    flex-direction: column;
    flex: 1;
    position: relative;
    overflow: hidden; /* Scroll-Management innerhalb der Container */
}

.task-area {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
}

.workspace {
    background-color: var(--color-white);
    border-radius: var(--radius-soft);
    padding: var(--spacing-md);
    box-shadow: 0 4px 6px rgba(20, 43, 73, 0.05);
    margin-top: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Digitaler Schmierzettel (Mobile Drawer) */
.scratchpad-area {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60vh;
    background-color: var(--color-white);
    border-top-left-radius: var(--radius-soft);
    border-top-right-radius: var(--radius-soft);
    box-shadow: 0 -4px 12px rgba(20, 43, 73, 0.1);
    transform: translateY(100%); /* Default zugeklappt auf Mobile */
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: var(--z-index-drawer);
    display: flex;
    flex-direction: column;
}

.scratchpad-area.is-open {
    transform: translateY(0);
}

.scratchpad-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-light-blue);
}

#scratchpad-canvas-container {
    flex: 1;
    background-image: linear-gradient(var(--color-light-blue) 1px, transparent 1px),
                      linear-gradient(90deg, var(--color-light-blue) 1px, transparent 1px);
    background-size: 20px 20px; /* Karopapier-Optik */
    /* Zwingender Apple Pencil/Safari Touch-Schutz */
    -webkit-touch-callout: none;
    touch-action: none; 
}