/* =============================================================================
   CobaltInvent - Static Site Styles
   Merged from _Layout.cshtml.css + site.css (dark, futuristic theme)
   ============================================================================= */

/* │ CSS VARIABLES │ */
:root {
    --color-bg: #12171f;
    --color-surface: #1e2530;
    --color-border: #2a2f3c;
    --color-primary: #4e94e0;
    --color-primary-dark: #1861ac;
    --color-accent: #00ecff;
    --color-text: #e0e0e0;
    --color-text-secondary: #a0a0a0;

    --font-sans: 'Inter', sans-serif;
    --base-font-size: 16px;

    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --transition-fast: 0.2s ease-in-out;
    --transition-medium: 0.4s ease-in-out;
}

/* │ RESET & BASE │ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--base-font-size);
    scroll-behavior: smooth;
    background-color: var(--color-bg);
    color: var(--color-text);
    position: relative;
    min-height: 100%;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    background-color: var(--color-bg) !important;
    color: var(--color-text);
    margin-bottom: 60px;
}

/* Links */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover,
a:focus {
    color: var(--color-accent);
}

/* Buttons */
.btn-primary {
    display: inline-block;
    font-weight: 600;
    color: #fff;
    background-color: var(--color-primary);
    border: 2px solid var(--color-primary-dark);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 0.5rem;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-medium);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

/* │ NAVBAR │ */
.navbar {
    background-color: var(--color-surface);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

a.navbar-brand {
    color: var(--color-primary);
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    word-break: break-all;
    padding: var(--spacing-md) 0;
}

.nav-pills .nav-link {
    color: var(--color-text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-pills .nav-link:hover {
    color: var(--color-text);
}

.nav-pills .nav-link.active,
.nav-pills .show > .nav-link {
    color: #fff;
    background-color: var(--color-primary);
    border-radius: 0.375rem;
}

/* │ UTILITIES │ */
.border-top {
    border-top: 1px solid var(--color-border);
}

.border-bottom {
    border-bottom: 1px solid var(--color-border);
}

.box-shadow {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.5);
}

/* │ FOOTER │ */
.footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    position: absolute;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--spacing-md) 0;
    font-size: 0.875rem;
}

/* │ MICRO-INTERACTIONS & ACCESSIBILITY │ */
button,
input,
select,
textarea {
    font-family: var(--font-sans);
    transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(78, 148, 224, 0.4);
    border-color: var(--color-primary);
}

/* │ HERO SECTION (exact copy from CobaltInvent.styles.css) │ */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.hero-gradient {
    position: relative;
    background: linear-gradient(270deg, var(--color-primary), var(--color-accent));
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    padding: var(--spacing-lg) 0;
    overflow: hidden;
    border-radius: 1rem;
    color: #fff;
}

/* │ SVG LINE ACCENT (exact copy from CobaltInvent.styles.css) │ */
.line-accent {
    width: 100%;
    height: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

    .line-accent path {
        stroke-dasharray: 200;
        stroke-dashoffset: 200;
        animation: drawLine 1s ease forwards;
    }

@keyframes drawLine {
    to {
        stroke-dashoffset: 0;
    }
}

/* │ PRODUCT CARDS │ */
.products-grid .product-card {
    border: 1px solid rgba(0, 71, 171, .12);
    border-radius: 14px;
    transition: transform .2s ease, box-shadow .2s ease;
}

.products-grid .product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0, 71, 171, .18) !important;
}

.products-grid .btn-cobalt {
    background-color: #0047AB;
    border: 1px solid #0047AB;
    color: #fff;
}

.products-grid .btn-cobalt:hover {
    background-color: #003688;
    border-color: #003688;
    color: #fff;
}

.products-grid .btn-cobalt-outline {
    background-color: transparent;
    border: 1px solid #0047AB;
    color: #0047AB;
}

.products-grid .btn-cobalt-outline:hover {
    background-color: #0047AB;
    color: #fff;
}

/* │ SCROLL-REVEAL ANIMATION (exact copy from CobaltInvent.styles.css) │ */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(2rem);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.animate-on-scroll.enter-view {
    opacity: 1;
    transform: translateY(0);
}

/* │ VALIDATION SHAKE ANIMATION │ */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }

    20%, 60% {
        transform: translateX(-4px);
    }

    40%, 80% {
        transform: translateX(4px);
    }
}

.was-validated .form-control:invalid {
    animation: shake var(--transition-fast) ease-in-out;
}

/* │ SUCCESS MESSAGE ANIMATION (exact copy from CobaltInvent.styles.css) │ */
.animate-on-show {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.animate-on-show.show {
    opacity: 1;
    transform: scale(1);
}

/* │ DARK-MODE OFFCANVAS OVERRIDES │ */
:root[data-theme="dark"] .offcanvas {
    background-color: var(--color-surface) !important;
    color: var(--color-text) !important;
}

:root[data-theme="dark"] .offcanvas-header,
:root[data-theme="dark"] .offcanvas-body {
    background-color: var(--color-surface) !important;
}

:root[data-theme="dark"] .offcanvas .btn-close {
    filter: invert(1);
}

:root[data-theme="dark"] .offcanvas .form-control {
    background-color: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

:root[data-theme="dark"] .offcanvas .was-validated .form-control:invalid {
    animation: shake var(--transition-fast) ease-in-out;
}

:root[data-theme="dark"] .offcanvas .btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary-dark);
}

/* │ LIGHT/DARK THEME OVERRIDES │ */
:root[data-theme="light"] {
    --color-bg: #f0f0f0;
    --color-surface: #fff;
    --color-border: #ddd;
    --color-primary: #1861ac;
    --color-accent: #0077cc;
    --color-text: #12171f;
    --color-text-secondary: #555;
}