/* ==========================================================================
   Professional "Charcoal" Dark Theme for Navajo Onboarding Portal
   ========================================================================== */

/* 1. THEME & COLOR PALETTE
   Using CSS variables for a consistent and easily maintainable theme.
   ========================================================================== */
:root {
    --color-background: #212529; /* Dark Slate Gray (Bootstrap's 'dark' color) */
    --color-surface: #2c3034; /* Lighter Charcoal for cards, forms, etc. */
    --color-border: #495057; /* A softer, more visible border color */

    --color-primary: #0d6efd; /* A modern, clean blue */
    --color-success: #198754; /* For completed steps */
    --color-secondary: #6c757d; /* For secondary buttons and text */
    --color-danger: #dc3545; /* For error messages */

    --text-primary: #f8f9fa; /* Main text color, off-white for better contrast */
    --text-secondary: #adb5bd; /* Dimmer text for placeholders or subtext */
    --text-headings: #ffffff; /* Pure white for strong headings */
}

/* 2. BASE & TYPOGRAPHY STYLES
   ========================================================================== */
html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    background-color: var(--color-background);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    display: flex; /* Enable flexbox for sticky footer */
    flex-direction: column; /* Stack elements vertically */
    min-height: 100vh; /* Ensure body takes at least full viewport height */
    margin: 0; /* Remove default margin */
}

main[role="main"] {
    flex-grow: 1;
}

h2, h4 {
    color: var(--text-headings);
}

p.lead {
    color: var(--text-secondary);
}

hr {
    background-color: transparent;
    border-top: 1px solid var(--color-border);
    opacity: 1;
}

/* 3. FORM ELEMENTS
   ========================================================================== */
.form-control,
.form-select {
    background-color: var(--color-surface);
    color: var(--text-primary);
    border: 1px solid var(--color-border);
    border-radius: 0.375rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    margin-bottom: 15px;
}

    .form-control::placeholder {
        color: var(--text-secondary);
        opacity: 0.7;
    }

    .form-control:focus,
    .form-select:focus {
        background-color: var(--color-surface);
        color: var(--text-primary);
        border-color: var(--color-primary);
        box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25); /* Primary blue glow */
    }

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 500;
}

label.required::after,
.text-danger {
    color: var(--color-danger) !important;
}

/* 4. BUTTONS & ALERTS
   ========================================================================== */
.btn {
    transition: all 0.2s ease-in-out;
}

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

    .btn-primary:hover {
        filter: brightness(1.1);
    }

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

.alert-info, .alert-secondary {
    background-color: rgba(13, 110, 253, 0.1);
    border: 1px solid rgba(13, 110, 253, 0.2);
    color: var(--text-primary);
}

/* 5. STEPPER NAVIGATION
   ========================================================================== */
.stepper-wrapper {
    display: flex;
    justify-content: space-between;
    margin: 40px 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.stepper-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    color: var(--text-secondary);
}

    .stepper-item::before { /* The connecting line */
        border-bottom: 3px solid var(--color-border);
        width: 100%;
        top: 20px;
        left: -50%;
        position: absolute;
        content: "";
        z-index: 2;
    }

    .stepper-item .step-counter {
        position: relative;
        z-index: 5;
        display: flex;
        justify-content: center;
        align-items: center;
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: var(--color-surface);
        border: 3px solid var(--color-border);
        margin-bottom: 6px;
        font-weight: bold;
        color: var(--text-secondary);
        transition: background-color 0.4s ease, border-color 0.4s ease, color 0.4s ease;
    }

    .stepper-item.active .step-counter {
        background-color: var(--color-primary);
        border-color: var(--color-primary);
        color: var(--text-headings);
    }

    .stepper-item.active .step-name {
        color: var(--color-primary);
        font-weight: 600;
    }

    .stepper-item.completed .step-counter {
        background-color: var(--color-success);
        border-color: var(--color-success);
        color: var(--text-headings);
    }

    .stepper-item.completed::after { /* The colored line for completed steps */
        border-bottom: 3px solid var(--color-success);
        width: 100%;
        top: 20px;
        left: 50%;
        position: absolute;
        content: "";
        z-index: 3;
    }

    .stepper-item.completed .step-counter::after { /* The checkmark */
        content: "✔";
        font-size: 20px;
        color: var(--text-headings);
    }

    .stepper-item:first-child::before {
        content: none;
    }

/* 6. FOOTER STYLES
   ========================================================================== */
.footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border) !important;
    padding: 1.5rem 0; /* A little more padding for visual space */
    color: var(--text-secondary);
    font-size: 0.9rem;
    position: relative;
}