/*
==========================================================================
LEONUX UI - COMPONENT LIBRARY
==========================================================================
Purpose: Reusable UI elements (Buttons, Cards, Inputs).
Focus: State management, Touch targets, Accessibility.
==========================================================================
*/

/* ---------------------------------- */
/* 1. NAVIGATION BUTTONS              */
/* ---------------------------------- */
.nav-btn {
    appearance: none;
    position: relative;
    
    /* Fluid Sizing for touch targets */
    width: clamp(3rem, 5vw, 4.5rem);
    height: clamp(3rem, 5vw, 4.5rem);
    
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-text-muted);
    
    display: flex;
    align-items: center;
    justify-content: center;
    
    cursor: pointer;
    transition: 
        color var(--duration-fast) var(--ease-smooth),
        background-color var(--duration-fast) var(--ease-smooth),
        transform var(--duration-fast) var(--ease-elastic);
        
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

/* Hover effects (Desktop only) */
@media (hover: hover) and (pointer: fine) {
    .nav-btn:hover {
        background-color: var(--color-bg-surface-2);
        color: var(--color-text-main);
        transform: translateY(-2px);
    }
}

/* Active / Selected State */
.nav-btn.active {
    background-color: var(--color-primary-dim);
    color: var(--color-primary);
    box-shadow: 0 0 20px var(--color-primary-glow);
}

/* Active Indicator Line */
.nav-btn.active::after {
    content: '';
    position: absolute;
    left: -0.5rem;
    width: 4px;
    height: 50%;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: indicatorSlideIn 0.3s var(--ease-elastic);
}

/* Mobile Indicator (Bottom/Top) */
@media (max-width: 768px) {
    .nav-btn.active::after {
        left: 50%;
        top: auto;
        bottom: 0.2rem;
        width: 40%;
        height: 3px;
        transform: translateX(-50%);
    }
}

@keyframes indicatorSlideIn {
    from { height: 0; opacity: 0; }
    to { height: 50%; opacity: 1; }
}

/* Keyboard Focus */
.nav-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ---------------------------------- */
/* 2. GLASS CARDS                     */
/* ---------------------------------- */
.g-card {
    position: relative;
    width: 100%;
    
    background: var(--glass-fill);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    
    border: 1px solid var(--glass-border);
    border-top: 1px solid var(--glass-border-highlight);
    border-radius: var(--radius-lg);
    
    padding: var(--space-lg);
    
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1), 
        0 2px 4px -1px rgba(0, 0, 0, 0.06),
        inset 0 0 20px rgba(0,0,0,0.05);
        
    overflow: hidden;
    transition: transform 0.3s var(--ease-smooth), border-color 0.3s ease;
    
    /* Improve text render on glass */
    text-shadow: 0 1px 1px rgba(0,0,0,0.1);
}

.g-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

/* ---------------------------------- */
/* 3. INPUT FIELDS (PILL)             */
/* ---------------------------------- */
.input-pill {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    
    background: var(--color-bg-surface-2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    
    padding: 0.5rem;
    padding-left: var(--space-md);
    
    transition: all 0.2s ease;
}

.input-pill:focus-within {
    border-color: var(--color-primary);
    box-shadow: 
        0 0 0 2px var(--color-bg-base),
        0 0 0 4px var(--color-primary-glow);
    transform: scale(1.01);
}

.clean-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--color-text-main);
    
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    
    min-width: 0;
    caret-color: var(--color-primary);
    padding: 0.25rem 0;
}

.clean-input::placeholder {
    color: var(--color-text-dim);
    opacity: 0.5;
    font-weight: 400;
}

.clean-input:focus { outline: none; }

/* ---------------------------------- */
/* 4. ACTION FAB (Floating Button)    */
/* ---------------------------------- */
.action-fab {
    appearance: none;
    border: none;
    flex-shrink: 0;
    
    width: clamp(3rem, 5vw, 4rem);
    height: clamp(3rem, 5vw, 4rem);
    
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, #2563eb 100%);
    color: white;
    
    display: grid;
    place-items: center;
    cursor: pointer;
    
    box-shadow: 0 4px 15px var(--color-primary-glow);
    transition: all 0.2s var(--ease-snappy);
    position: relative;
    overflow: hidden;
}

/* Shine Effect */
.action-fab::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
    pointer-events: none;
}

.action-fab:hover::before { left: 100%; }

.action-fab:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 25px var(--color-primary-glow);
}

.action-fab:active { transform: scale(0.95); }

/* Start Button Variant */
.icon-xl.action-fab {
    width: clamp(5rem, 10vw, 8rem);
    height: clamp(5rem, 10vw, 8rem);
}

/* ---------------------------------- */
/* 5. SWITCH TOGGLE                   */
/* ---------------------------------- */
.switch-toggle {
    display: flex; /* Changed from inline-flex for better structure */
    justify-content: center; /* Center content */
    background: var(--color-bg-surface-1);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    padding: var(--space-2xs);
    position: relative;
    margin: 0 auto var(--space-lg) auto; /* Centers the toggle itself */
    width: fit-content;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.switch-btn {
    appearance: none;
    background: transparent;
    border: none;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    color: var(--color-text-dim);
    font-weight: 600;
    font-size: var(--text-sm);
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.2s ease;
}

.switch-btn.active {
    color: var(--color-text-main);
    background-color: var(--color-bg-surface-3);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* ---------------------------------- */
/* 6. TOAST NOTIFICATION              */
/* ---------------------------------- */
#toast {
    background: var(--color-bg-surface-2);
    border: 1px solid var(--color-primary-dim);
    color: var(--color-text-main);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    backdrop-filter: blur(10px);
    z-index: var(--z-toast);
}

#toast-icon { color: var(--color-primary); }

/* ---------------------------------- */
/* 7. OUTLINE BUTTON (LOGOUT)         */
/* ---------------------------------- */
.btn-outline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    
    background: transparent;
    border: 1px solid var(--color-error);
    color: var(--color-error);
    
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth);
}

.btn-outline:hover {
    background: var(--color-error-bg);
    transform: translateY(-1px);
    box-shadow: 0 4px 10px var(--color-error-bg);
}

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