/* =================================================================
   1. DEFINING DESIGN TOKENS (CSS Custom Properties)
   ================================================================= */
:root {
    /* Primary Color Palette */
    --primary-color: #0d6efd;
    --primary-color-light: #e0f0ff;
    --primary-color-dark: #0a58ca;
    --primary-color-subtle-bg: #f0f7ff;
    --primary-color-subtle-border: #cce5ff;
    --primary-focus-glow: rgba(74, 144, 226, 0.25);
    
    /* Neutral Color Palette */
    --text-color-dark: #212529;
    --text-color-medium: #495057;
    --text-color-light: #6c757d;
    --border-color: #dee2e6;
    --background-light: #f7f9fc;
    --background-white: #ffffff;

    /* Status Colors */
    --success-color: #198754;
    --danger-color: #dc3545;
    --danger-color-dark: #c82333;

    /* Font & Typography */
    --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    --font-size-base: 1rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.8rem;
    --font-size-xxl: 3rem;
    --line-height-base: 1.5;
    --line-height-heading: 1.3;
    
    /* Spacing & Sizing */
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* Borders & Shadows */
    --border-radius-soft: 8px;
    --border-radius-medium: 12px;
    --border-radius-large: 16px;
    --border-radius-pill: 30px;
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.04), 0 2px 6px rgba(0, 0, 0, 0.02);
    --shadow-medium: 0 10px 30px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
    --shadow-strong: 0 8px 20px rgba(13, 110, 253, 0.3), 0 2px 6px rgba(13, 110, 253, 0.1);
}

body {
    font-family: var(--font-family-sans);
    color: var(--text-color-medium);
    background-color: var(--background-light);
}

/* =================================================================
   2. STYLING THE COMPONENTS
   ================================================================= */
#questions-container {
    position: relative;
    min-height: 280px;
    overflow: hidden;
    border-radius: var(--border-radius-large);
    background: linear-gradient(to bottom right, var(--background-white), var(--background-light));
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-medium);
    transition: all 0.4s ease-in-out;
    border: 1px solid rgba(230, 230, 230, 0.6);
}

.question-slide {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.98);
    transition: opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    padding: var(--spacing-md) 0;
    box-sizing: border-box;
}

.question-slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    position: relative;
}

.question-text-large {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-color-dark);
    margin-bottom: var(--spacing-xl);
    line-height: var(--line-height-heading);
    letter-spacing: -0.5px;
    text-align: center;
    padding: 0 var(--spacing-md);
}

.btn-check + .btn.btn-outline-primary.btn-lg {
    border-radius: var(--border-radius-pill);
    padding: 12px var(--spacing-lg);
    font-size: var(--font-size-lg);
    font-weight: 500;
    border: 1px solid var(--primary-color-subtle-border);
    color: var(--primary-color);
    background-color: var(--primary-color-subtle-bg);
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    margin: var(--spacing-sm);
    box-shadow: var(--shadow-soft);
}

.btn-check + .btn.btn-outline-primary.btn-lg:hover {
    background-color: var(--primary-color-light);
    border-color: #9cd0ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.btn-check:checked + .btn.btn-outline-primary.btn-lg {
    background-color: var(--primary-color);
    color: var(--background-white);
    border-color: var(--primary-color);
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-strong);
    font-weight: 600;
}

.form-control,
.form-select {
    border-radius: var(--border-radius-soft);
    padding: 12px 18px;
    border: 1px solid var(--border-color);
    font-size: var(--font-size-base);
    color: var(--text-color-medium);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.03);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem var(--primary-focus-glow);
    outline: none;
}

.file-drop-area {
    border: 2px dashed var(--primary-color);
    background: linear-gradient(to top right, #eaf2ff, var(--background-light));
    border-radius: var(--border-radius-large);
    padding: var(--spacing-xxl) var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.file-drop-area:hover {
    background-color: var(--primary-color-light);
    border-color: var(--primary-color-dark);
}

.file-drop-area .bi {
    font-size: var(--font-size-xxl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    opacity: 0.85;
}

.file-msg {
    font-size: 1.15rem;
    color: var(--text-color-light);
    font-weight: 500;
}

.file-list-item {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: var(--border-radius-soft);
    padding: 10px 20px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-soft);
    transition: all 0.2s ease;
}

.file-list-item:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
}

.file-list-item .file-name {
    color: var(--text-color-dark);
    font-weight: 500;
}

.file-list-item .remove-file {
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--danger-color);
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.file-list-item .remove-file:hover {
    opacity: 1;
    color: var(--danger-color-dark);
    transform: scale(1.1);
}

.stepper-v2 .step-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background-color: #f8f9fa;
    color: var(--text-color-light);
    font-weight: 600;
    transition: all 0.3s ease;
}

.stepper-v2 .step.active .step-icon {
    background-color: var(--primary-color);
    color: var(--background-white);
    border-color: var(--primary-color);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
}
.stepper-v2 .step.completed .step-icon {
    background-color: var(--success-color);
    color: var(--background-white);
    border-color: var(--success-color);
    box-shadow: 0 4px 10px rgba(25, 135, 84, 0.2);
}

.review-section {
    background: linear-gradient(to bottom right, #f8faff, #eaf2ff);
    border: 1px solid var(--primary-color-subtle-border);
    border-radius: var(--border-radius-medium);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-soft);
}

.review-title {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(13, 110, 253, 0.1);
    padding-bottom: var(--spacing-md);
}

.review-data {
    font-size: 1.05rem;
    margin-bottom: 12px;
    line-height: 1.7;
    color: var(--text-color-medium);
}

.review-data strong {
    color: var(--text-color-dark);
    margin-right: var(--spacing-sm);
    font-weight: 600;
}

.application-form-panel {
    background: var(--background-white);
    padding: var(--spacing-xxl);
    border-radius: 0 var(--border-radius-large) var(--border-radius-large) 0;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

#applicationForm {
    transition: min-height 0.4s ease-in-out;
}

/* =================================================================
   3. MOBILE STICKY BAR & RESPONSIVE LOGIC
   ================================================================= */

.mobile-apply-bar {
    display: none;
    transform: translateY(0);
    transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}


@media (max-width: 991.98px) {
    .container.my-5 {
        padding-bottom: 100px;
    }

    .job-info-panel {
        border-radius: var(--border-radius-large) !important;
        margin-bottom: var(--spacing-lg);
    }

    .job-info-panel .sticky-top {
        position: static !important;
    }
    
    .application-form-panel {
        border-radius: 0 0 var(--border-radius-large) var(--border-radius-large);
        padding: var(--spacing-xl);
    }
    
    .mobile-apply-bar {
        display: flex;
        align-items: center;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        padding: var(--spacing-sm) var(--spacing-md);
        background-color: var(--background-white);
        box-shadow: 0 -4px 15px rgba(0,0,0,0.08);
        z-index: 999; 
    }

    /* ** NEW RULE TO HIDE THE BAR ** */
    .mobile-apply-bar.is-hidden {
        transform: translateY(150%);
    }

    .form-container-v2:not(.mobile-form-active) .application-form-panel {
        display: none;
    }

    .form-container-v2.mobile-form-active .job-info-panel {
        display: none;
    }
    
    .form-container-v2.mobile-form-active .application-form-panel {
        display: block;
        width: 100%;
        border-radius: var(--border-radius-large) !important;
    }
}