/*
 * KTech Theme - Base
 * Resets, typography, generic utility classes shared across every page.
 */

*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: auto; /* Lenis owns smooth scrolling when active */
}
html.kt-lenis, html.kt-no-lenis {
    scroll-behavior: auto;
}

body {
    font-family: var(--theme-body-font);
    color: var(--theme-text);
    background: var(--kt-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--theme-heading-font);
    font-weight: 700;
    color: var(--kt-black);
    letter-spacing: -0.01em;
}

a {
    color: var(--theme-link);
    text-decoration: none;
    transition: var(--kt-transition);
}

img { max-width: 100%; height: auto; display: block; }

.container, .container-fluid { max-width: 1320px; }

::selection { background: var(--theme-primary); color: #fff; }

/* Focus visibility for keyboard users, everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2.5px solid var(--theme-primary);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Skip-to-content link */
.kt-skip-link {
    position: absolute;
    top: -60px;
    left: 1rem;
    background: var(--kt-black);
    color: #fff;
    padding: 0.75rem 1.25rem;
    border-radius: var(--theme-radius-sm);
    z-index: 2000;
    transition: top 0.2s ease;
}
.kt-skip-link:focus { top: 1rem; color: #fff; }

/* -----------------------------------------------------------------
   Sections
----------------------------------------------------------------- */
.kt-section { padding: clamp(3.5rem, 6vw, 6.5rem) 0; position: relative; }
.kt-section-tight { padding-top: 0; }
.kt-section-notop { padding-top: 0; }
.kt-section-nobottom { padding-bottom: 0; }
.kt-section-alt { background: var(--kt-gray-50); }
.kt-section-dark {
    background: var(--kt-gradient-dark);
    color: #d7d8de;
}
.kt-section-dark h2, .kt-section-dark h3 { color: #fff; }

.kt-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--theme-primary);
    background: rgba(var(--kt-primary-rgb), 0.08);
    border: 1px solid rgba(var(--kt-primary-rgb), 0.18);
    padding: 0.4rem 0.9rem;
    border-radius: var(--kt-radius-pill);
    margin-bottom: 1rem;
}
.kt-kicker i { font-size: 0.65rem; }
.kt-section-dark .kt-kicker {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.16);
    color: #fff;
}

.kt-title {
    font-size: clamp(1.8rem, 3.4vw, 2.75rem);
    line-height: 1.15;
    margin-bottom: 0.75rem;
}
.kt-title .kt-title-accent {
    background: var(--kt-gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.kt-sub {
    color: var(--kt-gray-500);
    font-size: 1.02rem;
    max-width: 640px;
}
.kt-sub-center { margin-left: auto; margin-right: auto; }
.kt-section-dark .kt-sub { color: #a9abb5; }

.kt-head-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-end;
    gap: 1.5rem;
}

/* -----------------------------------------------------------------
   Buttons
----------------------------------------------------------------- */
.kt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    background: var(--kt-gradient-primary);
    color: #fff;
    border: none;
    border-radius: var(--kt-radius-pill);
    padding: 0.85rem 1.85rem;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: var(--kt-shadow-glow);
    transition: var(--kt-transition);
    white-space: nowrap;
}
.kt-btn:hover, .kt-btn:focus-visible {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 1rem 2.25rem rgba(var(--kt-primary-rgb), 0.38);
}
.kt-btn:active { transform: translateY(0); }
.kt-btn i { font-size: 0.9em; }

.kt-btn-outline {
    background: transparent;
    color: var(--theme-primary);
    border: 1.5px solid rgba(var(--kt-primary-rgb), 0.4);
    box-shadow: none;
}
.kt-btn-outline:hover { background: var(--theme-primary); color: #fff; border-color: var(--theme-primary); }

.kt-btn-ghost-light {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: none;
    backdrop-filter: blur(6px);
}
.kt-btn-ghost-light:hover { background: rgba(255, 255, 255, 0.22); color: #fff; }

.kt-btn-sm { padding: 0.55rem 1.15rem; font-size: 0.82rem; }
.kt-btn-block { width: 100%; }
.kt-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* -----------------------------------------------------------------
   Cards / surfaces
----------------------------------------------------------------- */
.kt-card {
    background: #fff;
    border: 1px solid var(--kt-gray-200);
    border-radius: var(--theme-radius);
    box-shadow: var(--theme-shadow-sm);
    transition: var(--kt-transition);
}
.kt-card-hover:hover {
    box-shadow: var(--theme-shadow);
    transform: translateY(-4px);
}

.kt-glass {
    background: var(--kt-glass-bg);
    -webkit-backdrop-filter: var(--kt-glass-blur);
    backdrop-filter: var(--kt-glass-blur);
    border: 1px solid var(--kt-glass-border);
}
.kt-glass-dark {
    background: var(--kt-glass-bg-dark);
    -webkit-backdrop-filter: var(--kt-glass-blur);
    backdrop-filter: var(--kt-glass-blur);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #fff;
}

/* -----------------------------------------------------------------
   Breadcrumb
----------------------------------------------------------------- */
.kt-breadcrumb-bar {
    background: var(--kt-gray-50);
    border-bottom: 1px solid var(--kt-gray-200);
    padding: 1rem 0;
}
.kt-breadcrumb { display: flex; flex-wrap: wrap; gap: 0.4rem; list-style: none; margin: 0; padding: 0; font-size: 0.85rem; }
.kt-breadcrumb li { display: flex; align-items: center; gap: 0.4rem; color: var(--kt-gray-500); }
.kt-breadcrumb li:not(:last-child)::after {
    content: '\f105';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.7rem;
    color: var(--kt-gray-500);
    margin-left: 0.4rem;
}
.kt-breadcrumb a { color: var(--kt-gray-700); font-weight: 500; }
.kt-breadcrumb a:hover { color: var(--theme-primary); }
.kt-breadcrumb li[aria-current="page"] { color: var(--theme-primary); font-weight: 600; }

/* -----------------------------------------------------------------
   Forms
----------------------------------------------------------------- */
.kt-form .form-control,
.kt-form .form-select {
    border-radius: var(--theme-radius-sm);
    border: 1.5px solid var(--kt-gray-200);
    padding: 0.7rem 1rem;
}
.kt-form .form-control:focus,
.kt-form .form-select:focus {
    border-color: var(--theme-primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--kt-primary-rgb), 0.15);
}
.kt-form label { font-weight: 600; font-size: 0.85rem; margin-bottom: 0.35rem; color: var(--kt-gray-700); }

/* -----------------------------------------------------------------
   Misc utilities
----------------------------------------------------------------- */
.kt-empty {
    text-align: center;
    padding: 3.5rem 1.5rem;
    border-radius: var(--theme-radius);
    background: var(--kt-gray-50);
    border: 1px dashed var(--kt-gray-200);
}
.kt-empty i { font-size: 2rem; color: var(--kt-gray-500); margin-bottom: 1rem; }

.kt-aspect-1 { aspect-ratio: 1 / 1; object-fit: cover; }
.kt-aspect-4-3 { aspect-ratio: 4 / 3; object-fit: cover; }
.kt-aspect-16-9 { aspect-ratio: 16 / 9; object-fit: cover; }

/* Skeleton loading shimmer, used while images/carousels initialize */
.kt-skeleton {
    position: relative;
    overflow: hidden;
    background: var(--kt-gray-200);
}
.kt-skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.55), transparent);
    animation: kt-shimmer 1.4s infinite;
}
@media (prefers-reduced-motion: reduce) {
    .kt-skeleton::after { animation: none; }
}

/* Scrollbar (webkit only, purely cosmetic) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--kt-gray-100); }
::-webkit-scrollbar-thumb { background: var(--kt-gray-500); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--theme-primary); }