@import url('https://fonts.googleapis.com/css2?family=Sen:wght@400;700&display=swap');

/* --- General Styles --- */
:root {
    --color-main-bg: #FAF9F6; /* Off-white */
    --color-secondary-bg: #FFFFFF; /* Pure White */
    --color-accent: #FCDAC0; /* Peach */
    --color-text-dark: #333333; /* Dark Grey for text */
    --color-text-light: #666666; /* Medium Grey for subtle text */
    --font-family-primary: 'Sen', sans-serif;
    --border-radius-card: 8px;
    --border-radius-input: 4px;
    --spacing-lg: 32px;
    --spacing-md: 20px;
    --spacing-sm: 12px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family-primary);
    background-color: var(--color-main-bg);
    color: var(--color-text-dark);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- Typography and Links --- */
h1, h2 {
    font-weight: 700;
    color: var(--color-text-dark);
}

h1 {
    font-size: 1.8rem;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-text-dark);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-accent);
}

/* --- Layout Containers --- */
.container {
    max-width: 900px;
    width: 90%;
    margin: 0 auto;
    padding: var(--spacing-md) 0;
    flex-grow: 1; 
}

/* --- Top Bar --- */
.topbar {
    background-color: var(--color-secondary-bg);
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.topbar h1 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.topbar a {
    padding: 4px 8px;
    font-weight: 700;
    color: var(--color-text-light); 
}

.topbar a:hover {
    color: var(--color-accent);
}

/* --- Card/Panel Styling --- */
.card {
    background-color: var(--color-secondary-bg);
    border-radius: var(--border-radius-card);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    margin-bottom: var(--spacing-lg);
}

/* --- Buttons --- */
button, .button-link {
    display: block; 
    width: 100%;
    padding: 12px 15px;
    background-color: var(--color-accent);
    color: var(--color-text-dark);
    border: none;
    border-radius: var(--border-radius-input);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-family-primary);
    transition: background-color 0.2s ease, opacity 0.2s ease;
    text-align: center;
    text-decoration: none; 
    margin-top: var(--spacing-sm);
}

button:hover, .button-link:hover {
    background-color: #fbd3a9; 
    color: var(--color-text-dark);
}

/* --- Forms and Inputs --- */
form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1.5px solid var(--color-accent);
    border-radius: var(--border-radius-input);
    background-color: var(--color-secondary-bg);
    font-family: var(--font-family-primary);
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

input:focus {
    outline: none;
    border-color: #ffa55d; 
}

/* --- Specific Page Styles --- */

/* Landing Page */
.hero-section {
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.hero-section h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.hero-section p {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.update-info {
    font-size: 0.9rem;
    color: var(--color-text-light);
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px dashed #e0e0e0;
    margin-top: var(--spacing-lg);
}

/* Home Page Grid */
.grid-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.grid-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100px;
    font-size: 1rem;
    font-weight: 700;
    transition: transform 0.2s ease;
    text-align: center;
    padding: var(--spacing-md);
}

.grid-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
}

.grid-item h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dark);
}

.grid-item p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 0;
    line-height: 1.4;
}

/* Highlight the Journal link within the grid */
.journal-link {
    border: 2px solid var(--color-accent); 
    color: var(--color-text-dark);
    font-weight: 700;
}

.journal-link:hover {
    background-color: var(--color-accent);
    color: var(--color-text-dark);
}

/* Profile Page */
.profile-section {
    text-align: center;
}

.profile-picture {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-sm);
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--color-accent);
    position: relative;
}

.profile-picture img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-pic-label {
    cursor: pointer;
    display: block;
    position: relative;
}

.profile-pic-label .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    font-size: 0.8rem;
    font-weight: 700;
}

.profile-pic-label:hover .overlay {
    opacity: 1;
}

.profile-section h2 {
    margin-bottom: 4px;
}

.profile-section p {
    color: var(--color-text-dark);
    font-size: 1rem;
}

/* Sign In/Up Specific Styling */
.form-card {
    max-width: 400px;
    margin: var(--spacing-lg) auto;
}

.form-card p {
    text-align: center;
    margin-top: var(--spacing-md);
}

/* --- New CSS for System Messages --- */
#messageBox {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #ffe0b2;
    color: var(--color-text-dark);
    padding: 12px 20px;
    border-radius: var(--border-radius-input);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    font-size: 0.9rem;
    font-weight: 700;
    z-index: 100;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    pointer-events: none;
    max-width: 300px;
}

#messageBox.show {
    opacity: 1;
}

.error {
    background-color: #ffcccc !important;
    color: #721c24 !important;
}

/* Logo Header Styles */
.topbar h1 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
}

.logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

/* Nugget Mascot Styles */
.nugget-mascot {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin: 1rem auto;
    display: block;
    animation: float 3s ease-in-out infinite;
}

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

.nugget-helper {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: var(--color-secondary-bg);
    border-radius: var(--border-radius-card);
    margin: 1rem 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.nugget-helper img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.nugget-helper p {
    margin: 0;
    color: var(--color-text-dark);
}

/* Mobile Responsive Styles */
@media (max-width: 768px) {
    .container {
        width: 95%;
        padding: var(--spacing-sm) 0;
    }

    .topbar {
        padding: var(--spacing-sm);
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .topbar h1 {
        font-size: 1.3rem;
    }

    .hero-section h2 {
        font-size: 1.8rem;
    }

    .grid-menu {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .grid-item {
        min-height: 80px;
        font-size: 1rem;
        padding: var(--spacing-sm);
    }

    .grid-item h3 {
        font-size: 1rem;
    }

    .grid-item p {
        font-size: 0.85rem;
    }

    .card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .form-card {
        margin: var(--spacing-md) auto;
        padding: var(--spacing-md);
    }

    #messageBox {
        bottom: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
        font-size: 0.8rem;
    }

    input[type="text"],
    input[type="email"],
    input[type="password"] {
        padding: 12px;
        font-size: 16px; /* Prevents zoom on iOS */
    }

    button, .button-link {
        padding: 12px 15px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero-section h2 {
        font-size: 1.5rem;
    }

    .hero-section p {
        font-size: 1rem;
    }

    .topbar h1 {
        font-size: 1.2rem;
    }

    .card {
        padding: var(--spacing-sm);
    }

    .profile-picture {
        width: 80px;
        height: 80px;
    }
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Focus styles for accessibility */
button:focus,
input:focus,
a:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* High contrast support */
@media (prefers-contrast: high) {
    :root {
        --color-text-dark: #000000;
        --color-text-light: #333333;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .nugget-mascot {
        animation: none;
    }
}