/* ============================================================
   components.css
   Reusable UI pieces: buttons, badges, meta bar, navbar,
   cards, forms, footer (+ their responsive rules).
   ============================================================ */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem 1.6rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}

.btn-primary {
    background: var(--gradient);
    color: #04121f;
    font-weight: 700;
    box-shadow: 0 8px 24px -6px var(--glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 34px -6px rgba(56, 189, 248, 0.5);
}

.btn-ghost {
    background: var(--surface);
    color: var(--text);
    border-color: var(--border);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    transform: translateY(-2px);
    border-color: var(--border-strong);
    background: var(--surface-2);
}

.btn-sm { padding: 0.55rem 1.2rem; font-size: 0.85rem; }

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--primary-2);
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.25);
}

.badge .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary-2);
    box-shadow: 0 0 10px var(--primary-2);
}

/* Top meta bar */
.meta-bar {
    background: rgba(2, 6, 18, 0.85);
    border-bottom: 1px solid var(--border);
    font-size: 0.74rem;
    color: var(--muted);
    position: relative;
    z-index: 60;
}

.meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 1.5rem;
    max-width: 1320px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.meta-brand { color: var(--primary-2); font-weight: 700; letter-spacing: 0.04em; }
.meta-sep { opacity: 0.3; margin: 0 0.6rem; }

.meta-stripe {
    background: linear-gradient(90deg, #04101f, #071a30, #04101f);
    color: #cfe9fb;
    text-align: center;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 0.45rem 1rem;
    text-transform: uppercase;
}

/* Navbar */
.nav-wrap {
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
    border-bottom: 1px solid transparent;
}

.nav-wrap.scrolled {
    background: rgba(3, 7, 18, 0.78);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom-color: var(--border);
    box-shadow: 0 10px 40px -20px rgba(0, 0, 0, 0.9);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 0.04em;
}

.logo-mark {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: var(--gradient);
    display: grid;
    place-items: center;
    transform: rotate(0deg);
    box-shadow: 0 0 18px -2px var(--glow);
    position: relative;
}

.logo-mark::before {
    content: '';
    width: 12px;
    height: 12px;
    border: 2.5px solid #04121f;
    border-radius: 3px;
    transform: rotate(45deg);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a:not(.btn) {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--muted);
}

.nav-links a:not(.btn):hover { color: var(--text); }

.menu-toggle {
    display: none;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 44px;
    height: 44px;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Cards (3D tilt) */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    perspective: 1200px;
}

.tilt {
    transform-style: preserve-3d;
    will-change: transform;
    transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.card {
    position: relative;
    padding: 2rem;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(56, 189, 248, 0.12), transparent 45%);
    opacity: 0;
    transition: opacity 0.3s var(--ease);
    pointer-events: none;
}

.card:hover { border-color: var(--border-strong); box-shadow: 0 24px 50px -28px rgba(0, 0, 0, 0.9); }
.card:hover::before { opacity: 1; }

.card .depth { transform: translateZ(40px); }

.card-ico {
    width: 54px;
    height: 54px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    color: var(--primary-2);
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    margin-bottom: 1.3rem;
}

.card h3 { margin-bottom: 0.5rem; }
.card p { font-size: 0.96rem; }

.card .tag {
    display: inline-block;
    margin-top: 1.1rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary-2);
    letter-spacing: 0.03em;
}

/* Forms */
.form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.2rem;
    backdrop-filter: blur(12px);
}

.field { margin-bottom: 1.2rem; }
.field label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--muted); margin-bottom: 0.45rem; }
.field label .req { color: var(--primary-2); }

.field input,
.field select,
.field textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.98rem;
    transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.field input::placeholder, .field textarea::placeholder { color: var(--muted-2); }

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.14);
}

.field select { appearance: none; cursor: pointer; }

.form-status {
    margin-top: 1rem;
    padding: 0.85rem 1rem;
    border-radius: 10px;
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
    font-size: 0.9rem;
    text-align: center;
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    background: rgba(2, 6, 18, 0.7);
    padding: 4rem 0 2rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border);
}

.footer-top p { font-size: 0.9rem; margin-top: 1rem; max-width: 32ch; }
.footer-col h4 { font-size: 0.95rem; margin-bottom: 1rem; }
.footer-col ul { list-style: none; display: grid; gap: 0.6rem; }
.footer-col ul li { color: var(--muted); font-size: 0.9rem; }
.footer-col ul li a:hover { color: var(--primary-2); }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 1.8rem;
    font-size: 0.84rem;
    color: var(--muted);
}

.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--text); }

/* Component responsive */
@media (max-width: 992px) {
    .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .menu-toggle { display: flex; }
    .nav-wrap.open .nav-links {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0.4rem;
        padding: 1rem 1.5rem 1.5rem;
        background: rgba(3, 7, 18, 0.97);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border);
    }
    .nav-wrap.open .nav-links a:not(.btn) { padding: 0.5rem 0; }
    .meta-row { justify-content: center; text-align: center; }
    .meta-sep { display: none; }
    .meta-row > div { width: 100%; }
}

@media (max-width: 480px) {
    .footer-top { grid-template-columns: 1fr; }
}