/* style.css */
:root {
    /* Color Palette: Zen Mode */
    --color-bg: #F9F9F9;
    --color-surface: #FFFFFF;
    --color-primary: #5A8DEE; /* A calmer, slightly desaturated blue */
    --color-primary-hover: #4C78CC;
    --color-secondary-bg: #F1F3F5;
    --color-secondary-text: #5C677D;
    --color-secondary-border: #EAECEF;
    --color-secondary-hover: #E4E8EC;
    --color-gemini: #26A69A; /* A calm, nature-inspired green */
    --color-gemini-hover: #1F8A7D;
    --color-text-primary: #333333; /* Soft, dark gray instead of pure black */
    --color-text-secondary: #757575;
    --color-border: #EEEEEE;
    --color-focus-ring: rgba(90, 141, 238, 0.25);

    /* Typography */
    --font-sans: 'Montserrat', sans-serif;
    --font-serif: 'Montserrat', sans-serif; /* Unified font for a zen feel */

    /* Sizing & Spacing */
    --border-radius-card: 0.75rem; /* 12px */
    --border-radius-form: 0.5rem; /* 8px */
    --shadow-card: 0 4px 12px rgba(0,0,0,0.05);
    --transition-speed: 0.2s;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
}

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500; /* Softer weight for headings */
}

/* We keep Tailwind for layout, but override styles for our theme */
.container-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-card);
    box-shadow: var(--shadow-card);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    transition: background-color var(--transition-speed) ease, transform var(--transition-speed) ease;
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--color-secondary-bg);
    color: var(--color-secondary-text);
    border: 1px solid var(--color-secondary-border);
    transition: background-color var(--transition-speed) ease, transform var(--transition-speed) ease;
}
.btn-secondary:hover {
    background-color: var(--color-secondary-hover);
    transform: translateY(-2px);
}

.btn-gemini {
    background-color: var(--color-gemini);
    color: white;
    transition: background-color var(--transition-speed) ease, transform var(--transition-speed) ease;
}
.btn-gemini:hover {
    background-color: var(--color-gemini-hover);
    transform: translateY(-2px);
}

/* Form Elements */
textarea.border, input.border {
    border-radius: var(--border-radius-form);
    border-color: var(--color-border);
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

textarea.border:focus, input.border:focus {
    outline: none;
    border-color: var(--color-primary) !important; /* Override tailwind focus */
    box-shadow: 0 0 0 4px var(--color-focus-ring) !important;
}

/* Loader Animation */
.loader {
    width: 20px;
    height: 20px;
    border: 3px solid var(--color-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    vertical-align: middle;
    margin-left: 8px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Custom Message/Modal Boxes */
#message-box > div, #api-key-modal > div {
    border-radius: var(--border-radius-card);
    box-shadow: var(--shadow-card);
}

/* Overriding Tailwind color utilities for theme consistency */
.text-gray-600 { color: var(--color-text-secondary); }
.text-gray-700 { color: var(--color-text-primary); }
.text-gray-800 { color: var(--color-text-primary); }
.text-blue-600 { color: var(--color-primary); }
.text-green-600 { color: var(--color-gemini); }
.bg-gray-50 { background-color: var(--color-bg); }
.border-gray-300 { border-color: var(--color-border); }

/* Textarea Modernization */
textarea {
    min-height: 140px; /* Replaces rows="5" attribute */
    resize: vertical;
    overflow-y: hidden; /* Crucial for smooth auto-sizing */
}

#raw-master-prompt-output, #enhanced-master-prompt-output {
    min-height: 380px; /* Replaces rows="16" attribute */
    overflow-y: auto; /* Allow scrolling for final output */
}

.textarea-wrapper {
    position: relative;
}

.textarea-wrapper textarea {
    padding-bottom: 2.5rem; /* Add space for the buttons */
}

.textarea-controls {
    position: absolute;
    bottom: 0.75rem;
    right: 1.75rem; /* Moved further left to avoid scrollbar */
    display: flex;
    gap: 0.5rem;
    z-index: 10; /* Ensure buttons are on top of textarea content */
}

.btn-refine, .btn-undo {
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-form);
    border: 1px solid transparent;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    opacity: 0.85; /* Add slight transparency */
}

.btn-refine {
    background-color: var(--color-primary);
    color: white;
}

.btn-refine:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
    opacity: 1; /* Full opacity on hover */
}

.btn-undo {
    background-color: var(--color-secondary-bg);
    color: var(--color-secondary-text);
    border-color: var(--color-secondary-border);
}

.btn-undo:hover {
    background-color: var(--color-secondary-hover);
    border-color: var(--color-secondary-border);
    transform: translateY(-1px);
    opacity: 1; /* Full opacity on hover */
}

.btn-retry {
    background-color: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed) ease;
}

.btn-retry:hover {
    color: var(--color-primary);
    background-color: var(--color-secondary-bg);
}

/* Page Transitions */
@keyframes fade-out-left {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(-20px); }
}

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

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

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

.anim-fade-out-left { animation: fade-out-left 0.3s ease-out forwards; }
.anim-fade-in-from-right { animation: fade-in-from-right 0.3s ease-in forwards; }
.anim-fade-out-right { animation: fade-out-right 0.3s ease-out forwards; }
.anim-fade-in-from-left { animation: fade-in-from-left 0.3s ease-in forwards; }


/* Horizontal Stepper */
#stepper-container {
    --stepper-step-size: 2rem; /* 32px */
    --stepper-line-color: var(--color-border);
    --stepper-active-color: var(--color-primary);
    --stepper-completed-color: var(--color-gemini);
}

.step {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.step-circle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--stepper-step-size);
    height: var(--stepper-step-size);
    border-radius: 50%;
    background-color: var(--color-secondary-bg);
    border: 2px solid var(--stepper-line-color);
    color: var(--color-text-secondary);
    font-weight: 700;
    transition: all var(--transition-speed) ease;
    z-index: 2;
}

.step-label {
    margin-top: 0.5rem;
    font-size: 0.75rem; /* 12px */
    color: var(--color-text-secondary);
    transition: all var(--transition-speed) ease;
    text-transform: capitalize;
}

/* Connecting Lines */
.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: calc(var(--stepper-step-size) / 2);
    left: 50%;
    width: 100%;
    height: 2px;
    background-color: var(--stepper-line-color);
    transform: translateY(-50%);
    z-index: 1;
    transition: background-color var(--transition-speed) ease;
}

/* Step States */
.step.active .step-circle {
    border-color: var(--stepper-active-color);
    background-color: var(--stepper-active-color);
    color: white;
}
.step.active .step-label {
    color: var(--stepper-active-color);
    font-weight: 700;
}

.step.completed .step-circle {
    border-color: var(--stepper-completed-color);
    background-color: var(--stepper-completed-color);
    color: white;
}
.step.completed .step-label {
    color: var(--color-text-primary);
}
.step.completed:not(:last-child)::after {
    background-color: var(--stepper-completed-color);
}