@import url('design_tokens.css');

/* Layout Structure */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 2rem 1rem;
    animation: fadeIn 0.5s ease-out;
}

@media (max-width: 768px) {
    .main-content {
        padding: 1rem 0.75rem;
    }
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: 4.5rem;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-logo:hover { transform: scale(1.02); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-size: 0.9rem;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
    background: var(--primary-soft);
}

.nav-link.logout { color: var(--danger); }
.nav-link.logout:hover { background: hsl(0, 85%, 97%); }

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: var(--surface-alt);
    border: none;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: var(--radius-sm);
    color: var(--text-main);
    cursor: pointer;
    font-size: 1.25rem;
}

@media (max-width: 992px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 4.5rem;
        left: 0;
        width: 100%;
        background: var(--surface);
        flex-direction: column;
        padding: 1.5rem;
        gap: 0.75rem;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-links.active { display: flex; }
    .nav-link { width: 100%; padding: 1rem; font-size: 1rem; }
    .mobile-menu-toggle { display: flex; align-items: center; justify-content: center; }
}

/* Cards & Containers */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    overflow: hidden;
}

.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

@media (max-width: 480px) {
    .card { padding: 1.25rem; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    text-decoration: none;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }

.btn-secondary { background: var(--surface-alt); color: var(--text-main); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { opacity: 0.9; }

.btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; }

/* Forms */
.form-group { margin-bottom: 1.5rem; }
.form-label { display: block; font-weight: 700; margin-bottom: 0.5rem; font-size: 0.9rem; }
.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--surface-alt);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    background: var(--surface);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-soft);
}

/* Grid System */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-span-1 { grid-column: span 1; }
.grid-span-2 { grid-column: span 2; }
.grid-span-3 { grid-column: span 3; }

@media (max-width: 992px) { 
    .grid-3 { grid-template-columns: repeat(2, 1fr); } 
    .grid-span-2, .grid-span-3 { grid-column: 1 / -1; }
}
@media (max-width: 768px) { 
    .grid-2, .grid-3 { grid-template-columns: 1fr; } 
    .grid-span-1, .grid-span-2, .grid-span-3 { grid-column: 1 / -1; }
}

/* Task Entries (History) */
.task-entry {
    background: var(--surface);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border: 1px solid var(--border-soft);
    position: relative;
    transition: var(--transition);
}

.task-entry:hover { border-color: var(--border); transform: translateX(4px); }

.task-vibrant-marker {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
}

.task-info h3 { font-size: 1.125rem; margin-bottom: 0.5rem; }
.task-meta { display: flex; gap: 1rem; font-size: 0.8rem; color: var(--text-muted); flex-wrap: wrap; }

/* Animations */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Calendar Specifics */
.calendar-grid-container {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.horizontal-scroll-hint {
    display: none;
    text-align: center;
    padding: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--surface-alt);
}

@media (max-width: 768px) {
    .calendar-grid-container { overflow-x: auto; }
    .horizontal-scroll-hint { display: block; }
}

.calendar-day-box {
    min-height: 120px;
    padding: 0.75rem;
    border-right: 1px solid var(--border-soft);
    border-bottom: 1px solid var(--border-soft);
}

.task-badge-vibrant {
    display: block;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 800;
    color: white;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}