/* =================================================================
   Mars Technologies brand theme
   Palette sourced from marstech.co.za
     Red (signature) ......... #ED1C24  ->  #8B0000 (deep)
     Ink / near-black ........ #282626 / #1f1f1f
     Steel grey .............. #727272
     Light grey .............. #e2e2e2 / #f5f2f2
     Blue accent ............. #0088CB
     Yellow accent ........... #FFCB05
   Typeface: Poppins (brand font)
   ================================================================= */

:root {
    --mars-red: #ED1C24;
    --mars-red-hover: #c41219;
    --mars-red-dark: #8B0000;
    --mars-red-deep: #550000;
    --mars-ink: #282626;
    --mars-ink-2: #1f1f1f;
    --mars-grey: #727272;
    --mars-grey-light: #e2e2e2;
    --mars-surface: #f5f2f2;
    --mars-blue: #0088cb;
    --mars-yellow: #ffcb05;

    /* Re-map Bootstrap theme colours to the Mars palette */
    --bs-primary: #ED1C24;
    --bs-primary-rgb: 237, 28, 36;
    --bs-link-color: #c41219;
    --bs-link-color-rgb: 196, 18, 25;
    --bs-link-hover-color: #8B0000;
    --bs-link-hover-color-rgb: 139, 0, 0;
    --bs-body-font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --bs-body-color: #2b2b2b;
    --bs-body-bg: #ffffff;
}

html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

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

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', sans-serif;
    color: #2b2b2b;
    background-color: #ffffff;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--mars-ink);
}

.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    color: var(--mars-red-hover);
    text-decoration: none;
}

a:hover {
    color: var(--mars-red-dark);
}

/* ---------- Navbar ---------- */
.navbar.mars-navbar {
    background-color: var(--mars-ink) !important;
    border-bottom: 3px solid var(--mars-red);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
}

.mars-navbar .navbar-brand img {
    height: 38px;
    width: auto;
    display: block;
}

.mars-navbar .nav-link {
    color: rgba(255, 255, 255, 0.82) !important;
    font-weight: 500;
    border-radius: 6px;
    padding-left: 0.85rem !important;
    padding-right: 0.85rem !important;
    transition: color 0.15s, background-color 0.15s;
}

.mars-navbar .nav-link:hover,
.mars-navbar .nav-link:focus {
    color: #fff !important;
    background-color: rgba(255, 255, 255, 0.08);
}

.mars-navbar .nav-link.active {
    color: #fff !important;
}

.mars-navbar .navbar-nav > .nav-item > .nav-link.active::after {
    content: "";
    display: block;
    height: 2px;
    background: var(--mars-red);
    border-radius: 2px;
    margin-top: 2px;
}

.mars-navbar .dropdown-menu {
    border: none;
    border-top: 2px solid var(--mars-red);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

/* ---------- Buttons ---------- */
.btn-primary {
    --bs-btn-bg: var(--mars-red);
    --bs-btn-border-color: var(--mars-red);
    --bs-btn-hover-bg: var(--mars-red-hover);
    --bs-btn-hover-border-color: var(--mars-red-hover);
    --bs-btn-active-bg: var(--mars-red-dark);
    --bs-btn-active-border-color: var(--mars-red-dark);
    --bs-btn-disabled-bg: var(--mars-red);
    --bs-btn-disabled-border-color: var(--mars-red);
    color: #fff;
    background-image: linear-gradient(180deg, #f23037 0%, var(--mars-red) 55%, var(--mars-red-dark) 160%);
    border: none;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(237, 28, 36, 0.25);
}

.btn-primary:hover,
.btn-primary:focus {
    color: #fff;
    background-image: linear-gradient(180deg, var(--mars-red) 0%, var(--mars-red-dark) 120%);
    box-shadow: 0 4px 12px rgba(237, 28, 36, 0.35);
}

.btn-outline-primary {
    --bs-btn-color: var(--mars-red-hover);
    --bs-btn-border-color: var(--mars-red);
    --bs-btn-hover-bg: var(--mars-red);
    --bs-btn-hover-border-color: var(--mars-red);
    --bs-btn-active-bg: var(--mars-red-dark);
    --bs-btn-active-border-color: var(--mars-red-dark);
    font-weight: 600;
}

.btn-link {
    color: var(--mars-red-hover);
}
.btn-link:hover {
    color: var(--mars-red-dark);
}

.nav-pills .nav-link.active,
.nav-pills .show > .nav-link {
    color: #fff;
    background-color: var(--mars-red);
}

/* ---------- Text / utility accents ---------- */
.text-primary { color: var(--mars-red) !important; }
.bg-primary { background-color: var(--mars-red) !important; }
.spinner-border.text-primary,
.spinner-grow.text-primary { color: var(--mars-red) !important; }

.link-primary {
    color: var(--mars-red-hover) !important;
}

/* ---------- Cards & surfaces ---------- */
.card {
    border: 1px solid #ececec;
    border-radius: 12px;
}

.card.shadow-sm {
    box-shadow: 0 .25rem .9rem rgba(40, 38, 38, 0.07) !important;
}

.box-shadow {
    box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05);
}

/* ---------- Forms ---------- */
.form-control:focus,
.form-select:focus,
.form-check-input:focus {
    border-color: rgba(237, 28, 36, 0.55);
    box-shadow: 0 0 0 0.2rem rgba(237, 28, 36, 0.15);
}

.form-check-input:checked {
    background-color: var(--mars-red);
    border-color: var(--mars-red);
}

.btn:focus, .btn:active:focus,
.form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem #fff, 0 0 0 0.25rem rgba(237, 28, 36, 0.4);
}

/* ---------- Drop zone ---------- */
.drop-zone {
    border: 2px dashed #d2cfcf;
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s, background-color 0.15s;
    background-color: var(--mars-surface);
    user-select: none;
}

.drop-zone:hover,
.drop-zone--over {
    border-color: var(--mars-red);
    background-color: #fdecec;
}

.drop-zone--disabled {
    opacity: 0.55;
    pointer-events: none;
    cursor: not-allowed;
}

.drop-zone__content {
    pointer-events: none;
}

/* ---------- Result area ---------- */
#html-output {
    font-size: 0.78rem;
    resize: vertical;
    background: #1e1e1e;
    color: #d4d4d4;
    border-radius: 8px;
}

/* ---------- Alerts ---------- */
.alert-danger {
    --bs-alert-color: #8B0000;
    --bs-alert-border-color: #f3b9bb;
    --bs-alert-bg: #fdecec;
}

/* ---------- Footer ---------- */
.mars-footer {
    background-color: var(--mars-ink);
    color: rgba(255, 255, 255, 0.7);
    border-top: 3px solid var(--mars-red);
}

.mars-footer img {
    height: 30px;
    width: auto;
    opacity: 0.95;
}

.mars-footer .mars-tagline {
    color: var(--mars-grey-light);
    font-style: italic;
    font-size: 0.85rem;
}

/* ---------- Form floating placeholder (retained) ---------- */
.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}