/* File: public/css/styles.css - Herschreven voor consistente kleuren en mobiele weergave */

:root {
    /* Light Mode Kleuren */
    --primary-color-light: #667eea;
    --secondary-color-light: #764ba2;
    --background-color-light: #f0f2f5; /* Lichte achtergrond voor body */
    --text-color-light: #1f2937; /* Standaard tekstkleur voor light mode */
    --card-background-color-light: white; /* Lichte achtergrond voor kaarten, inputs etc. */
    --input-border-color-light: #d1d5db;
    --input-focus-ring-color-light: #4f46e5;
    --header-text-color-light: white;
    --modal-text-color-light: #1f2937; 
    --modal-background-color-light: white;
    --button-text-color-light: #1f2937;
    --button-background-color-light: #e5e7eb; 
    --task-item-background-light: #f9fafb; /* Specifieke lichte achtergrond voor task items */

    /* Dark Mode Kleuren */
    --primary-color-dark: #7c3aed;
    --secondary-color-dark: #4f46e5;
    --background-color-dark: #1f2937; /* Donkere achtergrond voor body */
    --text-color-dark: #f3f4f6; /* Standaard tekstkleur voor dark mode */
    --card-background-color-dark: #374151; /* Donkere achtergrond voor kaarten, inputs etc. */
    --input-border-color-dark: #4b5563;
    --input-focus-ring-color-dark: #7c3aed;
    --header-text-color-dark: white;
    --modal-text-color-dark: #f3f4f6;
    --modal-background-color-dark: #374151; 
    --button-text-color-dark: #f3f4f6;
    --button-background-color-dark: #4a5568;
    --task-item-background-dark: #4b5563; /* Specifieke donkere achtergrond voor task items */
    
    /* Animation timings */
    --animation-fast: 0.15s;
    --animation-normal: 0.3s;
    --animation-slow: 0.5s;
    --animation-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --animation-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* =================================================================
   BASE STYLES
   ================================================================= */

* {
    box-sizing: border-box;
}

html {
    /* Standaard light mode achtergrond voor html element, 
       kan ook weggelaten worden als body de volledige achtergrond beheert */
    background-color: var(--background-color-light); 
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color-light); /* Light mode standaard */
    color: var(--text-color-light); /* Light mode standaard */
    overscroll-behavior-y: contain;
    transition: background-color var(--animation-normal), color var(--animation-normal);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Dark mode overrides voor html en body */
body.dark-mode, 
body.dark-mode html {
    background-color: var(--background-color-dark);
    color: var(--text-color-dark);
}

/* =================================================================
   HEADER STYLES - IMPROVED FOR MOBILE
   ================================================================= */

.app-header {
    background: linear-gradient(135deg, var(--primary-color-light) 0%, var(--secondary-color-light) 100%);
    color: var(--header-text-color-light);
    position: relative;
    overflow: hidden;
    z-index: 50;
    padding: 1.5rem;
}

.app-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    bottom: -50%;
    left: -50%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

body.dark-mode .app-header {
    background: linear-gradient(135deg, var(--primary-color-dark) 0%, var(--secondary-color-dark) 100%);
    color: var(--header-text-color-dark);
}

.app-header .container {
    position: relative;
    z-index: 10;
}

/* Header layout improvements */
.header-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
}

.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 0.25rem;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.welcome-text {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9); /* Blijft wit, aangepast voor leesbaarheid op gradient */
    font-weight: 400;
    line-height: 1;
    margin: 0;
    align-self: flex-start;
}

/* Header control buttons - consistent sizing */
.header-controls button {
    padding: 0.5rem;
    border-radius: 50%;
    transition: all var(--animation-fast) ease;
    background: transparent;
    border: none;
    color: inherit; /* Erft kleur van .app-header */
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative; /* TOEGEVOEGD voor badge positioning */
}

.header-controls button:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.header-controls button i,
.header-controls button svg {
    font-size: 1.25rem;
    width: 1.25rem;
    height: 1.25rem;
}

/* User menu button specific styling */
#userMenuButton {
    position: relative;
}

#userMenuButton i {
    font-size: 1.25rem;
}

/* =================================================================
   NOTIFICATION BADGE - GEFIXTE VERSIE
   ================================================================= */

.notification-bell-container {
    position: relative;
    /* BELANGRIJK: zorg dat container geen overflow: hidden heeft */
    overflow: visible;
}

.notification-badge {
    position: absolute;
    top: -0.5rem; /* Verhoogd van -0.25rem naar -0.5rem */
    right: -0.5rem; /* Verhoogd van -0.25rem naar -0.5rem */
    background-color: #ef4444; /* Rood voor attentie */
    color: white;
    border-radius: 50%;
    width: 1.25rem; /* Iets groter gemaakt */
    height: 1.25rem; /* Iets groter gemaakt */
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border: 2px solid var(--header-text-color-light); /* Witte rand voor contrast */
    animation: badgeBounce 0.5s ease-out;
    z-index: 9999; /* VERHOOGD van 10 naar 9999 */
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3); /* Shadow voor visibility */
    /* BELANGRIJK: Force positioning */
    transform: translateZ(0);
    will-change: transform;
}

@keyframes badgeBounce {
    0%, 100% { transform: scale(1) translateZ(0); }
    50% { transform: scale(1.3) translateZ(0); }
}

body.dark-mode .notification-badge { 
    border-color: var(--header-text-color-dark); /* Witte rand in dark mode */
}

/* =================================================================
   MODAL STYLES
   ================================================================= */

.modal {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.75); /* Semi-transparante overlay */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 9999;
    transition: opacity var(--animation-normal) ease, backdrop-filter var(--animation-normal) ease;
    backdrop-filter: blur(4px);
    overflow-y: auto;
}

.modal.hidden {
    display: none !important;
}

.modal:not(.hidden) {
    display: flex !important;
}

.modal-entering { 
    opacity: 0;
    backdrop-filter: blur(0);
}

.modal-entering .modal-content {
    transform: scale(0.9) translateY(20px);
    opacity: 0;
}

.modal-entered { 
    opacity: 1;
    backdrop-filter: blur(4px);
}

.modal-entered .modal-content {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-exiting { 
    opacity: 0;
    backdrop-filter: blur(0);
}

.modal-exiting .modal-content {
    transform: scale(0.9) translateY(20px);
    opacity: 0;
}

.modal-content {
    background-color: var(--modal-background-color-light); /* Light mode standaard */
    color: var(--modal-text-color-light); /* Light mode standaard */
    border-radius: 0.75rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transition: transform var(--animation-normal) var(--animation-smooth), 
                background-color var(--animation-normal), 
                color var(--animation-normal);
    max-height: 90vh;
    overflow-y: auto;
    transform-origin: center;
    width: 100%;
    max-width: 32rem;
}

body.dark-mode .modal-content {
    background-color: var(--modal-background-color-dark); /* Dark mode override */
    color: var(--modal-text-color-dark); /* Dark mode override */
    border: 1px solid var(--input-border-color-dark);
}

/* =================================================================
   FORM INPUTS
   ================================================================= */

input[type="text"], 
input[type="date"], 
input[type="email"], 
input[type="password"], 
input[type="file"],
textarea, 
select {
    background-color: var(--card-background-color-light); /* Light mode standaard */
    border: 1px solid var(--input-border-color-light);
    color: var(--text-color-light); /* Light mode standaard */
    border-radius: 0.375rem;
    padding: 0.75rem;
    width: 100%;
    transition: all var(--animation-fast) ease;
    font-size: 0.875rem;
}

body.dark-mode input[type="text"], 
body.dark-mode input[type="date"], 
body.dark-mode input[type="email"],
body.dark-mode input[type="password"],
body.dark-mode input[type="file"],
body.dark-mode textarea, 
body.dark-mode select {
    background-color: var(--card-background-color-dark); /* Dark mode override */
    border-color: var(--input-border-color-dark);
    color: var(--text-color-dark); /* Dark mode override */
}

input[type="text"]:focus, 
input[type="date"]:focus, 
input[type="email"]:focus,
input[type="password"]:focus,
textarea:focus, 
select:focus {
    outline: 2px solid transparent;
    outline-offset: 2px; 
    border-color: var(--input-focus-ring-color-light);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

body.dark-mode input[type="text"]:focus, 
body.dark-mode input[type="date"]:focus, 
body.dark-mode input[type="email"]:focus,
body.dark-mode input[type="password"]:focus,
body.dark-mode textarea:focus, 
body.dark-mode select:focus {
    border-color: var(--input-focus-ring-color-dark);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

/* Checkbox styles */
input[type="checkbox"] {
    position: relative;
    cursor: pointer;
    transition: all var(--animation-fast) ease;
    /* Tailwind classes worden vaak gebruikt voor checkboxes, dus hier minimale basisstijl */
}

input[type="checkbox"]:checked {
    animation: checkBounce var(--animation-normal) var(--animation-bounce);
}

@keyframes checkBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.25); }
}

/* =================================================================
   BUTTON STYLES
   ================================================================= */

button {
    position: relative;
    overflow: hidden;
    transition: all var(--animation-fast) ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
    /* Basis knopkleuren kunnen hier of specifieker per knop type */
}

button::after { /* Ripple effect */
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5); /* Wit ripple, past zich aan op donkere knoppen */
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

button:active::after {
    width: 300px;
    height: 300px;
}

button:hover {
    opacity: 0.9;
}

/* Input type buttons - Enhanced for better mobile experience */
.input-type-button {
    transition: all var(--animation-fast) var(--animation-bounce);
    min-height: 3rem;
    border-radius: 0.5rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    font-size: 0.875rem;
    /* Kleuren worden vaak via Tailwind of specifieke classes toegevoegd, 
       maar basis kan hier:
       background-color: var(--button-background-color-light);
       color: var(--button-text-color-light); 
    */
}
/* body.dark-mode .input-type-button {
    background-color: var(--button-background-color-dark);
    color: var(--button-text-color-dark);
} */


.input-type-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.input-type-button:active {
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

/* =================================================================
   FLOATING ACTION BUTTONS
   ================================================================= */

.fab {
    position: fixed;
    z-index: 40;
    transition: all var(--animation-normal) var(--animation-smooth);
    animation: fabPulse 2s infinite;
    border: none;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Kleuren worden vaak specifiek per FAB ingesteld (zie index.html) */
}

@keyframes fabPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.fab:hover {
    animation: none;
    transform: scale(1.1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

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

#pomodoroFABCButton {
    bottom: 2rem;
    left: 2rem;
}

#brainDumpFABButton {
    bottom: 2rem;
    right: 2rem;
}

/* =================================================================
   TASK CARDS
   ================================================================= */

.task-card {
    background-color: var(--card-background-color-light); /* Light mode standaard */
    color: var(--text-color-light); /* Tekstkleur erven van body */
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--animation-normal) var(--animation-smooth);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    min-height: 300px;
}

.task-card::before { /* Shine effect */
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

.task-card:hover::before {
    left: 100%;
}

body.dark-mode .task-card {
    background-color: var(--card-background-color-dark); /* Dark mode override */
    color: var(--text-color-dark); /* Dark mode override */
}

.task-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

/* =================================================================
   TASK ITEMS
   ================================================================= */

.task-item {
    background-color: var(--task-item-background-light); /* Light mode standaard */
    color: var(--text-color-light); /* Light mode standaard */
    animation: slideInLeft var(--animation-normal) ease-out;
    transition: all var(--animation-fast) ease;
    position: relative;
    z-index: 1;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    /* padding etc. wordt vaak via Tailwind gedaan, hier basis */
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

body.dark-mode .task-item {
    background-color: var(--task-item-background-dark); /* Dark mode override */
    color: var(--text-color-dark); /* Dark mode override */
}

.task-item:hover {
    transform: translateX(4px);
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1); /* Schaduw effect */
}

.task-item.completed label {
    text-decoration: line-through;
    color: #9ca3af; /* Gedempte kleur voor voltooide taken in light mode */
}

body.dark-mode .task-item.completed label {
    color: #6b7280; /* Gedempte kleur voor voltooide taken in dark mode */
}

.task-item.due-today {
    background-color: #fee2e2 !important; /* Belangrijke achtergrond voor "due today" in light mode */
    border-left: 4px solid #ef4444;
    padding-left: calc(0.75rem - 4px) !important;
    animation: dueTodayPulse 2s ease-in-out infinite;
}

@keyframes dueTodayPulse {
    0%, 100% { box-shadow: inset 0 0 0 0 rgba(239, 68, 68, 0.1); }
    50% { box-shadow: inset 0 0 20px 0 rgba(239, 68, 68, 0.2); }
}

body.dark-mode .task-item.due-today {
    background-color: #7f1d1d !important; /* Belangrijke achtergrond voor "due today" in dark mode */
    border-left-color: #f87171;
}

.task-item.completing {
    animation: taskComplete 0.5s ease-out forwards;
}

@keyframes taskComplete {
    0% { 
        transform: translateX(0) scale(1);
        opacity: 1;
    }
    50% {
        transform: translateX(20px) scale(1.05);
        opacity: 0.8;
    }
    100% { 
        transform: translateX(100%) scale(0.9);
        opacity: 0;
    }
}

/* =================================================================
   TASK CATEGORY BORDERS (Work, Study, Social)
   ================================================================= */

.border-work { border-left: 4px solid #3b82f6; position: relative; }
.border-study { border-left: 4px solid #10b981; position: relative; }
.border-social { border-left: 4px solid #8b5cf6; position: relative; }

.border-work::after, .border-study::after, .border-social::after {
    content: '';
    position: absolute;
    left: -4px;
    top: 0;
    bottom: 0;
    width: 4px;
    background-size: 100% 200%;
    animation: borderFlow 3s linear infinite;
    opacity: 0;
    transition: opacity var(--animation-normal);
}
.border-work:hover::after, .border-study:hover::after, .border-social:hover::after { opacity: 1; }

.border-work::after { background: linear-gradient(180deg, #3b82f6, #60a5fa, #3b82f6); }
.border-study::after { background: linear-gradient(180deg, #10b981, #34d399, #10b981); }
.border-social::after { background: linear-gradient(180deg, #8b5cf6, #a78bfa, #8b5cf6); }

@keyframes borderFlow {
    0% { background-position: 0% 0%; }
    100% { background-position: 0% 200%; }
}

/* =================================================================
   ARCHIVE ICON
   ================================================================= */

.archive-icon-button {
    color: #6b7280; /* Gedempte kleur in light mode */
    transition: all var(--animation-fast) ease;
    position: relative;
    z-index: 1;
    background: transparent;
    border: none;
    padding: 0.5rem;
    border-radius: 0.25rem;
}

body.dark-mode .archive-icon-button {
    color: #9ca3af; /* Gedempte kleur in dark mode */
}

.archive-icon-button:hover {
    color: var(--primary-color-light); /* Primaire kleur bij hover in light mode */
    transform: rotate(15deg) scale(1.1);
    background-color: rgba(59, 130, 246, 0.1); /* Lichte achtergrond bij hover */
}

body.dark-mode .archive-icon-button:hover {
    color: var(--primary-color-dark); /* Primaire kleur bij hover in dark mode */
    background-color: rgba(96, 165, 250, 0.1); /* Lichte achtergrond bij hover */
}

/* =================================================================
   POMODORO TIMER
   ================================================================= */

.timer-display {
    font-size: 3rem;
    font-weight: 700;
    animation: timerPulse 1s ease-in-out infinite;
    color: var(--primary-color-light); /* Timer kleur in light mode */
}
body.dark-mode .timer-display {
    color: var(--primary-color-dark); /* Timer kleur in dark mode */
}


@keyframes timerPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.pomodoro-cycles span {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #e5e7eb; /* Inactieve indicator in light mode */
    margin: 0 4px;
    transition: all var(--animation-normal) var(--animation-bounce);
}

body.dark-mode .pomodoro-cycles span {
    background-color: #4b5563; /* Inactieve indicator in dark mode */
}

.pomodoro-cycles span.active {
    background-color: var(--primary-color-light); /* Actieve indicator in light mode */
    transform: scale(1.4);
    box-shadow: 0 0 12px rgba(102, 126, 234, 0.6);
}

body.dark-mode .pomodoro-cycles span.active {
    background-color: var(--primary-color-dark); /* Actieve indicator in dark mode */
    box-shadow: 0 0 12px rgba(124, 58, 237, 0.6);
}

/* =================================================================
   BRAIN DUMP
   ================================================================= */

.brain-dump-flashcard {
    min-width: 100%;
    scroll-snap-align: start;
    flex-direction: column;
    align-items: flex-start;
    background-color: var(--card-background-color-light); /* Light mode standaard */
    color: var(--text-color-light); /* Light mode standaard */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin-bottom: 0;
    padding: 1rem;
    animation: flashcardSlide var(--animation-normal) ease-out;
}

@keyframes flashcardSlide {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

body.dark-mode .brain-dump-flashcard {
    background-color: var(--card-background-color-dark); /* Dark mode override */
    color: var(--text-color-dark); /* Dark mode override */
}

/* Audio recording button animation */
#recordAudioButton.recording {
    background-color: #ef4444 !important; /* Rood voor opname */
    color: white !important;
    animation: recordingPulse 1.5s ease-in-out infinite;
}

@keyframes recordingPulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
    50% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
}

/* Sketch canvas */
#sketchCanvas {
    border: 1px solid #ccc;
    cursor: crosshair;
    touch-action: none;
    width: 100%;
    height: auto;
    max-height: 300px;
    aspect-ratio: 450 / 300;
    background-color: white; /* Altijd witte achtergrond voor canvas */
    transition: box-shadow var(--animation-fast) ease;
}

#sketchCanvas:hover {
    box-shadow: 0 0 15px rgba(102, 126, 234, 0.3);
}

body.dark-mode #sketchCanvas {
    border-color: #6b7280; /* Donkere rand in dark mode */
}

/* =================================================================
   SETTINGS
   ================================================================= */

.settings-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e5e7eb; /* Light mode border */
}

body.dark-mode .settings-section {
    border-bottom-color: #4b5563; /* Dark mode border */
}

.settings-section:last-child {
    border-bottom: none;
}

.settings-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color-light); /* Light mode standaard */
}

body.dark-mode .settings-title {
    color: var(--text-color-dark); /* Dark mode override */
}

.settings-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #374151; /* Specifieke label kleur in light mode */
}

body.dark-mode .settings-label {
    color: #d1d5db; /* Specifieke label kleur in dark mode */
}

/* Toggle switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc; /* Inactieve slider in light mode */
    transition: all var(--animation-normal) var(--animation-smooth);
    border-radius: 28px;
}

body.dark-mode .slider {
    background-color: #4b5563; /* Inactieve slider in dark mode */
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white; /* Knopje van de slider */
    transition: all var(--animation-normal) var(--animation-bounce);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

input:checked + .slider {
    background-color: var(--primary-color-light); /* Actieve slider in light mode */
}

body.dark-mode input:checked + .slider {
    background-color: var(--primary-color-dark); /* Actieve slider in dark mode */
}

input:checked + .slider:before {
    transform: translateX(22px);
}

/* =================================================================
   TOAST NOTIFICATIONS
   ================================================================= */

.toast-notification {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    background-color: #333; /* Standaard toast achtergrond (info) */
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    opacity: 0;
    transition: all var(--animation-normal) var(--animation-smooth);
    font-size: 0.9rem;
    max-width: 90vw;
    text-align: center;
}

.toast-notification.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast-notification.error {
    background-color: #ef4444; /* Rood voor error */
    animation: toastShake 0.5s ease-out;
}

.toast-notification.success {
    background-color: #22c55e; /* Groen voor succes */
    animation: toastBounce 0.5s ease-out;
}

@keyframes toastShake {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    25% { transform: translateX(calc(-50% - 10px)) translateY(0); }
    75% { transform: translateX(calc(-50% + 10px)) translateY(0); }
}

@keyframes toastBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* =================================================================
   UTILITY STATES
   ================================================================= */

.loading {
    opacity: 0.6;
    pointer-events: none;
    cursor: wait;
}

.loading::after { /* Spinner voor loading state */
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1rem;
    height: 1rem;
    margin: -0.5rem 0 0 -0.5rem;
    border: 2px solid transparent;
    border-top: 2px solid currentColor; /* Gebruikt de tekstkleur van het element */
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error-state {
    color: #ef4444;
    background-color: #fef2f2; /* Lichte rode achtergrond voor error in light mode */
    border: 1px solid #fecaca;
    padding: 0.75rem;
    border-radius: 0.375rem;
    margin: 1rem 0;
}

body.dark-mode .error-state {
    color: #fca5a5;
    background-color: #7f1d1d; /* Donkere rode achtergrond voor error in dark mode */
    border-color: #991b1b;
}

.success-state {
    color: #059669;
    background-color: #ecfdf5; /* Lichte groene achtergrond voor succes in light mode */
    border: 1px solid #a7f3d0;
    padding: 0.75rem;
    border-radius: 0.375rem;
    margin: 1rem 0;
}

body.dark-mode .success-state {
    color: #6ee7b7;
    background-color: #064e3b; /* Donkere groene achtergrond voor succes in dark mode */
    border-color: #047857;
}

/* =================================================================
   SCROLLBAR
   ================================================================= */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-color-light); /* Scrollbar track in light mode */
    border-radius: 4px;
}

body.dark-mode ::-webkit-scrollbar-track {
    background: var(--background-color-dark); /* Scrollbar track in dark mode */
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1; /* Scrollbar thumb in light mode */
    border-radius: 4px;
    transition: background var(--animation-fast) ease;
}

body.dark-mode ::-webkit-scrollbar-thumb {
    background: #4b5563; /* Scrollbar thumb in dark mode */
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8; /* Hover state in light mode */
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
    background: #6b7280; /* Hover state in dark mode */
}

/* =================================================================
   INTERACTIVE ELEMENTS
   ================================================================= */

a, button, [role="button"] {
    cursor: pointer;
}

.add-task-trigger-button {
    position: relative;
    z-index: 1;
    background: transparent;
    border: 1px solid transparent;
    transition: all var(--animation-fast) ease;
    /* Kleuren worden vaak via Tailwind of specifiek per categorie ingesteld */
}

.add-task-trigger-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Ensure all elements are properly clickable */
button, a[role="button"], .fab {
    position: relative;
    z-index: 1;
}

/* =================================================================
   RESPONSIVE DESIGN - CONSISTENTE KLEUREN OP ALLE SCHERMFORMATEN
   ================================================================= */

/* BELANGRIJK: Alle media queries gebruiken nu consistent dezelfde CSS variabelen
   zodat er geen kleurverschillen meer zijn tussen desktop en mobile */

@media (max-width: 768px) {
    /* Header adjustments for mobile */
    .app-header {
        padding: 1rem;
    }
    
    .header-content {
        align-items: flex-start;
    }
    
    .header-main {
        align-items: center;
    }
    
    .header-controls {
        gap: 0.5rem;
    }
    
    .header-controls button {
        width: 2.5rem;
        height: 2.5rem;
        padding: 0.5rem;
    }
    
    .header-controls button i,
    .header-controls button svg {
        font-size: 1.125rem;
        width: 1.125rem;
        height: 1.125rem;
    }
    
    .welcome-text {
        font-size: 0.8rem;
        margin-top: 0.125rem;
    }
    
    /* Main content adjustments */
    main {
        padding: 1rem; /* Minder padding op mobiel */
        margin-top: 1rem;
    }
    
    /* Task cards mobile */
    .task-card {
        padding: 1rem;
        min-height: 250px;
        /* BELANGRIJK: Geen mobile-specifieke kleur overrides hier! 
           Alle kleuren komen van de CSS variabelen */
    }

    /* Task items mobile - GEFIXTE tekstzichtbaarheid */
    .task-item {
        padding: 0.75rem;
        /* BELANGRIJK: Geen mobile-specifieke kleur overrides hier! 
           Alle kleuren komen van de CSS variabelen */
    }
    
    .task-item label {
        color: var(--text-color-light) !important; /* Gebruik CSS variabele */
        font-weight: 500;
    }
    
    body.dark-mode .task-item label {
        color: var(--text-color-dark) !important; /* Gebruik CSS variabele */
    }
    
    /* FAB buttons mobile */
    .fab {
        bottom: 1rem;
        width: 3.5rem;
        height: 3.5rem;
    }
    
    #pomodoroFABCButton {
        left: 1rem;
    }
    
    #brainDumpFABButton {
        right: 1rem;
    }
    
    /* Modal adjustments for mobile */
    .modal-content {
        margin: 0.5rem;
        max-width: calc(100vw - 1rem);
        padding: 1rem;
        /* BELANGRIJK: Geen mobile-specifieke kleur overrides hier! */
    }
    
    /* Input type buttons mobile */
    .input-type-button {
        min-height: 2.5rem;
        font-size: 0.75rem;
        padding: 0.5rem;
        /* BELANGRIJK: Kleuren komen van de CSS variabelen */
    }
    
    .input-type-button i {
        font-size: 0.875rem;
    }
    
    /* Task management buttons mobile */
    .add-task-trigger-button {
        padding: 0.75rem;
        font-size: 0.875rem;
        /* BELANGRIJK: Geen mobile-specifieke kleur overrides hier! */
    }
    
    .archive-icon-button {
        padding: 0.375rem;
        /* BELANGRIJK: Geen mobile-specifieke kleur overrides hier! */
    }
    
    /* Form inputs mobile */
    input[type="text"], 
    input[type="date"], 
    input[type="email"], 
    input[type="password"], 
    input[type="file"],
    textarea, 
    select {
        padding: 0.75rem;
        font-size: 1rem; /* Voorkomt zoom op iOS */
        /* BELANGRIJK: Kleuren komen van de CSS variabelen */
    }
    
    /* Notification badge mobile - VERBETERDE versie */
    .notification-badge {
        top: -0.375rem; /* Nog iets verder naar buiten */
        right: -0.375rem;
        width: 1.125rem; /* Iets kleiner op mobile */
        height: 1.125rem;
        font-size: 0.7rem;
        z-index: 9999; /* Behoud hoge z-index */
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .app-header {
        padding: 0.75rem;
    }
    
    .header-controls button {
        width: 2.25rem;
        height: 2.25rem;
        padding: 0.375rem;
    }
    
    .header-controls button i,
    .header-controls button svg {
        font-size: 1rem;
        width: 1rem;
        height: 1rem;
    }
    
    .fab {
        bottom: 0.5rem;
        width: 3rem;
        height: 3rem;
    }
    
    #pomodoroFABCButton {
        left: 0.5rem;
    }
    
    #brainDumpFABButton {
        right: 0.5rem;
    }
    
    .timer-display {
        font-size: 2.5rem;
    }
    
    .task-card {
        padding: 0.75rem;
        min-height: 200px;
    }
    
    .modal-content {
        margin: 0.25rem;
        max-width: calc(100vw - 0.5rem);
        padding: 0.75rem;
    }
    
    .welcome-text {
        font-size: 0.75rem;
    }
    
    /* Notification badge small mobile */
    .notification-badge {
        top: -0.25rem;
        right: -0.25rem;
        width: 1rem;
        height: 1rem;
        font-size: 0.65rem;
    }
}

/* Larger mobile devices and tablets */
@media (min-width: 769px) and (max-width: 1024px) {
    .header-controls {
        gap: 0.75rem;
    }
    
    .header-controls button {
        width: 2.75rem;
        height: 2.75rem;
        padding: 0.625rem;
    }
    
    main {
        padding: 1.5rem;
        margin-top: 1.5rem;
    }
    
    .fab {
        bottom: 1.5rem;
        width: 4rem;
        height: 4rem;
    }
    
    #pomodoroFABCButton {
        left: 1.5rem;
    }
    
    #brainDumpFABButton {
        right: 1.5rem;
    }
}

/* Desktop styles */
@media (min-width: 1025px) {
    .header-controls {
        gap: 0.75rem;
    }
    
    .header-controls button {
        width: 2.5rem;
        height: 2.5rem;
        padding: 0.5rem;
    }
    
    .header-controls button:hover {
        transform: scale(1.1);
    }
}

/* Print styles */
@media print {
    .app-header,
    .fab,
    button,
    .modal {
        display: none !important;
    }
    
    .task-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .task-card {
        border: 2px solid var(--text-color-light);
    }
    
    body.dark-mode .task-card {
        border-color: var(--text-color-dark);
    }
    
    .input-type-button {
        border: 1px solid currentColor;
    }
}