/* Global Styles with More Flare */
:root {
    --primary-color: #3a0ca3;
    --secondary-color: #4895ef;
    --background-color: #f5f5ff;
    --card-bg: #ffffff;
    --text-color: #333333;
    --subtle-text: #666666;
    --border-color: #ddddee;
    --success-color: #4caf50;
    --error-color: #f44336;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 6px 15px rgba(0, 0, 0, 0.2);
    --transition-fast: all 0.25s cubic-bezier(0.4, 0.0, 0.2, 1);
    --transition-normal: all 0.35s cubic-bezier(0.4, 0.0, 0.2, 1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    /* Subtle diagonal stripes background */
    background-image: linear-gradient(45deg, #e0e0ff 25%, transparent 25%, transparent 75%, #e0e0ff 75%, #e0e0ff),
                      linear-gradient(45deg, #e0e0ff 25%, transparent 25%, transparent 75%, #e0e0ff 75%, #e0e0ff);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
    padding: 30px;
    transition: var(--transition-fast);
}

.container {
    max-width: 950px;
    margin: 40px auto;
    background-color: var(--card-bg);
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    position: relative; /* For potential pseudo-element additions */
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.container:hover {
    transform: translateY(-5px); /* More noticeable lift */
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}

/* Header */
header {
    padding: 35px;
    background: linear-gradient(135deg, var(--primary-color) 0%, color-mix(in srgb, var(--primary-color) 50%, var(--secondary-color)) 50%, var(--secondary-color) 100%); /* More distinct color mix */
    color: white;
    text-align: center;
    border-radius: 15px 15px 0 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden; /* Clip the pseudo-element */
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1); /* Subtle white overlay for a glassy effect */
    opacity: 0;
    transition: opacity var(--transition-normal);
}

header:hover::before {
    opacity: 0.2;
}

h1 {
    margin-bottom: 12px;
    letter-spacing: -0.75px;
    font-size: 2.5rem; /* Slightly larger heading */
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Main Content */
main {
    padding: 35px;
}

section {
    margin-bottom: 45px;
}

h2 {
    margin-bottom: 22px;
    color: var(--primary-color);
    border-bottom: 4px double var(--secondary-color); /* Double border */
    padding-bottom: 12px;
    position: relative;
}

/* Form Styling */
form {
    margin-bottom: 30px;
}

label {
    display: block;
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--primary-color); /* Label color emphasis */
}

textarea {
    width: 100%;
    padding: 18px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    resize: vertical;
    font-family: inherit;
    margin-bottom: 25px;
    font-size: 1.1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

textarea:focus {
    border-color: var(--secondary-color);
    outline: none;
    box-shadow: 0 0 8px rgba(72, 149, 239, 0.5); /* More prominent focus shadow */
}

.submit-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background-color var(--transition-normal), transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.submit-btn:hover {
    background-color: color-mix(in srgb, var(--primary-color) 70%, var(--secondary-color)); /* Darker hover color */
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.submit-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Analysis Section */
.analysis-section {
    padding: 30px;
    background-color: rgba(72, 149, 239, 0.15); /* More noticeable background */
    border-radius: 8px;
    border-left: 8px solid var(--secondary-color); /* Thicker, more prominent border */
    box-shadow: var(--shadow-sm);
}

.placeholder-text {
    color: var(--subtle-text);
    font-style: italic;
    opacity: 0.8;
    font-size: 1.05rem; /* Slightly larger */
}

.loading {
    color: var(--secondary-color); /* Using secondary color for loading */
    font-style: italic;
    font-weight: bold; /* Make it stand out */
    animation: spin 1s linear infinite; /* More engaging loading animation */
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Dream History */
.dream-entry {
    background-color: var(--card-bg);
    border: 2px solid var(--border-color); /* Thicker border */
    border-radius: 10px;
    padding: 22px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.dream-entry:hover {
    transform: scale(1.02); /* Subtle scaling on hover */
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.timestamp {
    color: var(--subtle-text);
    font-size: 0.95rem;
    text-align: right;
    margin-top: 15px;
    font-style: italic;
    opacity: 0.85;
}

/* Footer */
footer {
    text-align: center;
    padding: 25px;
    background-color: var(--primary-color);
    color: white;
    font-size: 1rem;
    border-radius: 0 0 15px 15px;
    box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.1); /* Subtle top shadow */
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 20px;
        background-size: 40px 40px;
    }

    .container {
        margin: 20px auto;
        border-radius: 10px;
    }

    header {
        padding: 25px;
        border-radius: 10px 10px 0 0;
    }

    main {
        padding: 25px;
    }

    section {
        margin-bottom: 35px;
    }

    h2 {
        margin-bottom: 18px;
        padding-bottom: 10px;
        border-bottom-width: 3px;
    }

    textarea {
        margin-bottom: 20px;
        font-size: 1rem;
    }

    .submit-btn {
        width: 100%;
        padding: 14px 24px;
        font-size: 1rem;
    }

    .analysis-section {
        padding: 20px;
        border-left-width: 6px;
    }

    .dream-entry {
        padding: 18px;
        margin-bottom: 25px;
        border-radius: 8px;
    }

    footer {
        padding: 20px;
        border-radius: 0 0 10px 10px;
    }
}

/* Utility Classes */
.error {
    color: var(--error-color);
    padding: 14px;
    border-radius: 8px;
    margin-bottom: 20px;
    background-color: rgba(244, 67, 54, 0.15);
    border: 2px solid rgba(244, 67, 54, 0.4);
    font-weight: bold; /* Emphasize error messages */
}

hr {
    border: 0;
    height: 3px;
    background-color: var(--border-color);
    margin: 50px 0;
}