/* EMPOWERING ENGINEERS UK - MASTER LAYOUT [v13.1]
   Updates: 
   - Feature: Split Input Grid (Input Left / MPU Right)
   - Feature: Global Range Slider styling (Webkit + Moz)
   - Feature: Standardised AI "Magic" Button (.btn-ai)
   - Feature: Standardised Output Box (.terminal-output)
*/

:root {
    /* --- CORE BRAND PALETTE (DEFAULT DARK) --- */
    --midnight-navy: #0D1B2A;      /* Main Background */
    --dark-card: #101925;          /* Card/Panel Background */
    --slate-grey: #8899A6;         /* Secondary Text */
    --terminal-green: #00FF99;     /* Primary Action/Success */
    --burnt-orange: #FF8C42;       /* Accents/Warnings */
    --cloud-white: #E6EDF3;        /* Main Text */
    --border-color: #30363d;       /* Borders */
    
    /* --- INTERACTION --- */
    --hover-green: rgba(0, 255, 153, 0.1);
    --input-bg: rgba(13, 27, 42, 0.6);

    /* --- TOOL SPECIFIC PALETTE --- */
    --terminal-bg: #09121d;        /* Deep code/output box background */
    --status-blue: #54a0ff;        /* RACI 'C' / STAR Low Score */
    --status-yellow: #feca57;      /* RACI 'I' / DAP Medium Term */
    --status-red: #ff6b6b;         /* DAP Long Term */
    --status-teal: #4ecdc4;        /* DAP Short Term */
}

/* --- 1. CORE TYPOGRAPHY & RESET --- */
body {
    background-color: var(--midnight-navy);
    color: var(--cloud-white);
    font-family: "Arial", "Helvetica Neue", "Helvetica", sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-family: inherit;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0;
    color: var(--terminal-green); 
}

.brand-hero-title {
    font-family: 'Lora', serif;
    font-weight: 700;
}

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

a:hover { 
    text-decoration: underline; 
}

/* --- 2. LAYOUT CONTAINERS --- */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    flex: 1; 
}

.card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}

/* --- 3. HERO & NAVIGATION --- */
.sticky-container {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(13, 27, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    height: auto; 
    min-height: 65px; 
    padding: 5px 20px; 
    display: flex;
    justify-content: space-between;
    align-items: center; 
    flex-wrap: wrap; 
    gap: 15px; 
}

.site-brand-img { 
    height: 45px; 
    width: auto; 
    display: block;
}

nav {
    display: flex;
    flex-wrap: wrap; 
    justify-content: center;
    align-items: center;
    gap: 15px; 
}

nav a {
    color: var(--slate-grey);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: bold;
    text-decoration: none;
    white-space: nowrap; 
    margin: 0; 
}

nav a:hover, 
nav a.active { 
    color: var(--terminal-green); 
}

/* --- 4. ACTION BAR & POPUP --- */
.action-bar-container {
    background: transparent; 
    padding: 0;
    font-family: inherit;
    display: flex;
    flex-direction: column; 
    align-items: center;
    margin-left: 15px; 
    justify-content: center;
    width: 250px; 
    gap: 4px; 
}

.nav-theme-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--slate-grey);
    padding: 0 12px;
    height: 30px; 
    font-size: 0.75rem;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    width: 100%; 
    margin: 0;
    box-sizing: border-box;
}

.nav-theme-btn:hover {
    border-color: var(--terminal-green);
    color: #ffffff;
    background: var(--hover-green);
}

.action-wrapper {
    display: flex;
    justify-content: center;
    width: 100%;
    height: 30px; 
    align-items: center;
}

.action-select {
    background: var(--input-bg);
    backdrop-filter: blur(5px);
    color: var(--slate-grey);
    border: 1px solid var(--border-color);
    height: 30px;
    padding: 0 10px; 
    border-radius: 4px;
    font-family: inherit;
    cursor: pointer;
    font-size: 0.8rem;
    width: 100%;
    text-align: center;
    transition: 0.2s;
    appearance: none;
    -webkit-appearance: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    box-sizing: border-box;
}

.action-select:hover {
    border-color: var(--terminal-green);
    color: #ffffff;
    background: rgba(13, 27, 42, 0.9);
}

.action-select:focus {
    outline: none;
    border-color: var(--terminal-green);
    color: var(--terminal-green) !important;
    background: rgba(0, 0, 0, 0.8);
}

.action-select.active-choice {
    color: var(--terminal-green) !important;
    border-color: var(--terminal-green);
}

.rec-card {
    display: none; 
    background: var(--dark-card);
    border: 1px solid var(--terminal-green);
    border-radius: 6px;
    padding: 12px 20px;
    position: absolute;
    top: 100%; 
    margin-top: 10px;
    right: 20px;
    width: 350px;
    z-index: 2000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.6);
    animation: slideDown 0.2s ease-out;
    flex-direction: column;
    gap: 10px;
}

.rec-text { 
    color: var(--cloud-white); 
    font-size: 0.85rem; 
    line-height: 1.4; 
}

.rec-btn {
    background: var(--terminal-green);
    color: var(--midnight-navy);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
    text-align: center;
    display: block;
    margin-top: 5px;
}

.rec-btn:hover { 
    opacity: 0.9; 
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
    .action-bar-container { 
        margin-left: 0; 
        width: 100%; 
        margin-top: 10px; 
    }
    .action-wrapper { 
        max-width: 100%; 
    }
    .rec-card { 
        position: fixed; 
        top: auto; 
        bottom: 20px; 
        left: 5%; 
        width: 90%; 
        right: auto; 
        margin-top: 0; 
    }
}

/* --- 5. GLOBAL FORM STYLING --- */
select, 
input[type="text"], 
input[type="number"],
input[type="email"], 
input[type="date"],
textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--cloud-white);
    font-family: inherit;
    font-size: 0.95rem;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

select:focus, 
input:focus, 
textarea:focus {
    outline: none;
    border-color: var(--terminal-green);
    background-color: rgba(13, 27, 42, 0.9);
    box-shadow: 0 0 8px rgba(0, 255, 153, 0.15);
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238899A6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 16px;
    padding-right: 45px;
    cursor: pointer;
}

/* --- GLOBAL RANGE SLIDER STYLING (Standardised) --- */
input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
    margin: 15px 0;
}

input[type=range]:focus {
    outline: none;
}

/* Webkit (Chrome, Safari, Edge) */
input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: var(--slate-grey);
    border-radius: 2px;
    transition: 0.2s;
}

input[type=range]::-webkit-slider-thumb {
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background: var(--terminal-green);
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -8px; /* Centers thumb on track */
    box-shadow: 0 0 5px rgba(0,0,0,0.5);
    transition: 0.2s;
}

/* Firefox */
input[type=range]::-moz-range-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: var(--slate-grey);
    border-radius: 2px;
    transition: 0.2s;
}

input[type=range]::-moz-range-thumb {
    height: 20px;
    width: 20px;
    border: none;
    border-radius: 50%;
    background: var(--terminal-green);
    cursor: pointer;
    box-shadow: 0 0 5px rgba(0,0,0,0.5);
    transition: 0.2s;
}

/* Hover Effects */
input[type=range]:hover::-webkit-slider-thumb {
    background: #fff;
    box-shadow: 0 0 10px var(--terminal-green);
}
input[type=range]:hover::-moz-range-thumb {
    background: #fff;
    box-shadow: 0 0 10px var(--terminal-green);
}

label {
    display: block;
    color: var(--burnt-orange);
    font-family: inherit;
    font-size: 0.9rem;
    margin-bottom: 8px;
    font-weight: bold;
}

::placeholder, 
::-webkit-input-placeholder, 
::-moz-placeholder, 
:-ms-input-placeholder {
    font-family: 'Courier Prime', monospace;
    font-style: italic;
    color: var(--slate-grey);
    opacity: 0.5;
    font-size: 0.9rem;
}

.hint { 
    display: block; 
    font-size: 0.8rem; 
    color: var(--slate-grey); 
    margin-bottom: 8px; 
}

.word-count { 
    text-align: right; 
    font-size: 0.75rem; 
    color: var(--slate-grey); 
    margin-top: 5px; 
    font-family: 'Courier Prime', monospace; 
}

/* --- 6. GLOBAL BUTTON STYLING --- */
button, .btn, .action-btn {
    font-family: inherit;
    font-weight: bold;
    font-size: 0.95rem;
    padding: 12px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    display: inline-block;
    text-align: center;
    width: 100%; 
    border: none;
    letter-spacing: 0.5px;
}

.btn-primary, .action-btn {
    background-color: var(--terminal-green);
    color: var(--midnight-navy);
}

.btn-primary:hover, .action-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 255, 153, 0.2);
}

.btn-secondary, .action-btn-ghost {
    background-color: transparent;
    border: 1px solid var(--slate-grey);
    color: var(--slate-grey);
    margin-top: 10px;
}

.btn-secondary:hover, .action-btn-ghost:hover {
    border-color: var(--terminal-green);
    color: var(--terminal-green);
    background-color: var(--hover-green); 
}

/* STANDARD AI "MAGIC" BUTTON */
.btn-ai {
    background: rgba(255, 255, 255, 0.05);
    border: 1px dashed var(--terminal-green);
    color: var(--terminal-green);
    padding: 15px;
    width: 100%;
    font-family: 'Courier Prime', monospace;
    text-transform: uppercase;
    font-weight: bold;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 10px;
    display: block;
}

.btn-ai:hover {
    background: rgba(0, 255, 153, 0.1);
    box-shadow: 0 0 15px rgba(0, 255, 153, 0.1);
    transform: translateY(-1px);
}

/* --- 7. FOOTER STYLING --- */
footer {
    text-align: center;
    padding: 30px 20px; 
    color: var(--slate-grey);
    border-top: 1px solid var(--border-color);
    margin-top: auto; 
    background: rgba(13, 27, 42, 0.95);
    font-size: 0.9rem;
}

footer a { color: var(--slate-grey); }
footer a:hover { color: var(--terminal-green); }

/* --- 8. TOOL UTILITIES --- */
.dashboard-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 20px; 
    margin-bottom: 20px; 
}

.config-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 20px; 
}

.metric-card { 
    background: rgba(255,255,255,0.05); 
    padding: 15px; 
    border-radius: 6px; 
    text-align: center; 
    border: 1px solid rgba(255,255,255,0.05); 
}

.score-val { 
    font-size: 2rem; 
    font-weight: 700; 
    display: block; 
    margin-bottom: 5px; 
    color: var(--terminal-green); 
}

.score-label { 
    font-size: 0.75rem; 
    color: var(--slate-grey); 
    text-transform: uppercase; 
    letter-spacing: 1px; 
}

.results-area { 
    margin-top: 30px; 
    padding: 20px; 
    background: rgba(0,0,0,0.3); 
    border-left: 3px solid var(--terminal-green); 
    display: none; 
}

/* STANDARD TERMINAL OUTPUT BOX */
.terminal-output {
    background: var(--terminal-bg);
    padding: 25px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    min-height: 200px;
    white-space: pre-wrap;
    line-height: 1.6;
    font-family: 'Roboto', sans-serif; 
    position: relative;
    margin-top: 20px;
}

/* Tool Header Styles */
.instruction-header { 
    grid-column: 1 / -1; 
    background: rgba(0, 255, 153, 0.03); 
    border-left: 4px solid var(--terminal-green); 
    padding: 15px 20px; 
    margin-bottom: 20px; 
    border-radius: 4px; 
}

.tool-h1 { 
    border: none; 
    color: var(--terminal-green); 
    padding: 0; 
    margin: 0 0 8px 0; 
    font-size: 1.4rem; 
    font-weight: bold; 
    text-transform: uppercase; 
    letter-spacing: 0.5px; 
}

.tool-desc { 
    font-size: 0.95rem; 
    line-height: 1.4; 
    color: var(--cloud-white); 
    margin-bottom: 12px; 
    max-width: 950px; 
}

.header-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 30px; 
    margin-top: 10px; 
    padding-top: 10px; 
    border-top: 1px dashed rgba(255,255,255,0.1); 
}

.header-col h4 { 
    color: var(--burnt-orange); 
    font-size: 0.75rem; 
    text-transform: uppercase; 
    margin: 0 0 5px 0; 
    font-family: inherit; 
    font-weight: bold; 
}

.tool-list { 
    font-size: 0.85rem; 
    line-height: 1.4; 
    color: var(--slate-grey); 
    margin: 0; 
    padding-left: 15px; 
}

.tool-list li { 
    margin-bottom: 3px; 
}

.privacy-note { 
    font-size: 0.7rem; 
    color: #666; 
    margin-top: 10px; 
    font-style: italic; 
    display: block; 
}

/* --- 9. RESPONSIVENESS & ADS --- */
@media (max-width: 800px) {
    .sticky-container { 
        flex-direction: column; 
        gap: 10px; 
        padding: 15px; 
        height: auto; 
    }
    nav { 
        display: flex; 
        flex-wrap: wrap; 
        justify-content: center; 
        gap: 10px; 
    }
    nav a { 
        margin-left: 0; 
        margin: 5px; 
    }
    .dashboard-grid, .config-grid { 
        grid-template-columns: 1fr; 
    }
    .container { 
        padding: 10px; 
    }
}

@media (max-width: 768px) { 
    .header-grid { 
        grid-template-columns: 1fr; 
        gap: 15px; 
    } 
}

.ad-slot { 
    background: rgba(255, 255, 255, 0.02); 
    border: 1px dashed var(--border-color); 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    margin: 20px auto; 
    overflow: hidden; 
    text-transform: uppercase; 
    font-size: 0.7rem; 
    color: var(--slate-grey); 
}

.ad-leaderboard { 
    width: 728px; 
    height: 90px; 
    max-width: 100%; 
}

.ad-mpu { 
    width: 300px; 
    height: 250px; 
}

.tool-grid a.tool-card { 
    white-space: normal !important; 
    height: auto; 
}

/* --- FEATURE: SPLIT INPUT GRID (Standardised) --- */
/* Use this for "Input Left" / "MPU + AI Button Right" Layout */

.tool-input-grid {
    display: grid;
    grid-template-columns: 1fr 300px; /* Left: Auto-fill, Right: Fixed MPU */
    gap: 25px;
    align-items: start;
    width: 100%;
    margin-bottom: 20px;
}

/* Wrapper for the Right Column (Ad + Button stack) */
.tool-stack-right {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 300px;
}

/* The Ad Container - Visual Styling */
.ad-mpu-container {
    width: 300px;
    height: 250px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px dashed rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* The Input Area - Ensure it stretches correctly */
.tool-input-grid .input-group {
    width: 100%;
    min-width: 0; /* Prevents grid blowout */
}

/* MOBILE RESPONSIVENESS */
@media (max-width: 850px) {
    .tool-input-grid {
        grid-template-columns: 1fr;
    }
    
    /* On mobile, stack the Ad below inputs, or hide if preferred */
    .tool-stack-right {
        width: 100%;
        margin: 20px auto 0 auto;
        align-items: center;
    }
    
    /* Ensure Buttons fill width on mobile */
    .btn-ai {
        width: 100%;
    }
}

/* =========================================================================
   ACCESSIBILITY THEMES (WCAG 2.1 AA COMPLIANT) [v11.6 Updated]
   ========================================================================= */

/* THEME 1: SITE ENGINEER (Light Mode) */
[data-theme="light"] {
    --midnight-navy: #F4F7F9;      /* Light Grey Background */
    --dark-card: #FFFFFF;          /* White Cards */
    --slate-grey: #4A5568;         /* Dark Grey Secondary */
    --terminal-green: #006837;     /* Darker Green for text/borders */
    --burnt-orange: #C05621;       /* Darker Orange */
    --cloud-white: #1A202C;        /* Dark Navy Text (Main) */
    --border-color: #CBD5E0;       /* Light Borders */
    --input-bg: #FFFFFF;
    --terminal-bg: #E2E8F0;

    /* Sticky Header Contrast */
    .sticky-container {
        background: rgba(244, 247, 249, 0.95);
        border-bottom: 1px solid #CBD5E0;
    }
    
    /* Navigation Link Visibility */
    nav a {
        color: var(--cloud-white) !important;
    }
    nav a:hover, nav a.active {
        color: var(--terminal-green) !important;
    }

    /* Button Visibility (Force Dark Green Borders) */
    .nav-theme-btn,
    .hero-btn, 
    .action-btn-ghost, 
    .btn-secondary,
    .action-select,
    .btn-ai {
        border-color: var(--border-color) !important;
        color: var(--cloud-white) !important;
        background-color: #ffffff;
    }
    
    .nav-theme-btn:hover,
    .hero-btn:hover, 
    .action-btn-ghost:hover,
    .action-select:hover,
    .btn-ai:hover {
        background-color: var(--terminal-green) !important;
        border-color: var(--terminal-green) !important;
        color: #ffffff !important;
    }

    /* Action Bar Specifics */
    .action-select {
        background: #ffffff;
        color: var(--cloud-white);
    }

    ::placeholder { color: #718096; opacity: 1; }
}

/* THEME 2: HIGH VISIBILITY (High Contrast) */
[data-theme="contrast"] {
    --midnight-navy: #000000;
    --dark-card: #000000;
    --slate-grey: #FFFF00;         /* Yellow */
    --terminal-green: #00FF00;     /* Neon Green */
    --burnt-orange: #FFA500;       /* Neon Orange */
    --cloud-white: #FFFFFF;        /* Pure White */
    --border-color: #FFFFFF;       /* White Borders */
    --input-bg: #000000;
    
    /* Maximize Border Visibility */
    .nav-theme-btn, 
    .hero-btn, 
    .action-btn-ghost, 
    .card, 
    input, 
    select,
    .action-select,
    .rec-card,
    .btn-ai {
        border: 2px solid #FFFFFF !important;
        color: #FFFFFF !important;
    }
    
    /* Text Links - Yellow, NO Underline */
    a { 
        color: #FFFF00; 
        text-decoration: none !important;
    }
    a:hover {
        text-decoration: none !important;
        background-color: #333;
    }
    
    /* Header Solid Black */
    .sticky-container {
        background: #000000;
    }
    
    /* Popup Card High Contrast */
    .rec-card {
        background: #000000;
        border: 4px solid #00FF00 !important;
    }
}