/* Reusable UI components: navbar, buttons, cards, footer, phone mockup, etc. */

/* ---------- Navbar ---------- */
.sd-navbar {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(255, 255, 255, .88);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--sd-outline);
    transition: box-shadow var(--sd-motion) var(--sd-easing);
}

.sd-navbar.is-scrolled {
    box-shadow: var(--sd-shadow-sm);
}

/* .container-sd is a plain content-width wrapper elsewhere on the site, so it
   has no flex behavior of its own — Bootstrap's navbar row layout normally
   comes from its own .container* classes, which this custom class doesn't
   match. Without this, the brand and the nav-links/button block stack as two
   separate rows instead of sitting on one line. Mirrors Bootstrap's own
   navbar-expand-lg breakpoint (992px) exactly. */
.sd-navbar .container-sd {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}

@media (min-width: 992px) {
    .sd-navbar .container-sd {
        flex-wrap: nowrap;
    }
}

.sd-navbar .navbar-brand {
    display: flex;
    align-items: center;
    margin-right: 0;
}

/* ---------- Logo lockup (icon + two-tone wordmark, optional tagline) ---------- */
.sd-logo {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    text-decoration: none;
}

.sd-logo-mark {
    flex: none;
    border-radius: 10px;
}

.sd-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.sd-logo-word {
    font-weight: 800;
    letter-spacing: -0.02em;
}

.sd-logo-word-primary {
    color: var(--sd-text);
}

.sd-logo-word-accent {
    color: var(--sd-brand);
}

.sd-logo-navbar .sd-logo-word {
    font-size: 1.3rem;
}

.sd-logo-tagline {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    margin-top: .2rem;
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .04em;
}

.sd-logo-tagline::before,
.sd-logo-tagline::after {
    content: "";
    width: 10px;
    height: 1px;
    background: currentColor;
    opacity: .55;
}

/* Footer variant sits on the dark brand background */
.sd-logo-footer .sd-logo-word {
    font-size: 1.5rem;
}

.sd-logo-footer .sd-logo-word-primary {
    color: #fff;
}

.sd-logo-footer .sd-logo-word-accent {
    color: var(--sd-accent-amber);
}

.sd-logo-footer .sd-logo-tagline {
    color: rgba(255, 255, 255, .75);
}

.sd-navbar .nav-link {
    font-weight: 600;
    color: var(--sd-text-secondary);
    padding: .5rem 1rem !important;
    border-radius: var(--sd-radius-pill);
    transition: color var(--sd-motion-fast) var(--sd-easing), background var(--sd-motion-fast) var(--sd-easing);
}

.sd-navbar .nav-link:hover,
.sd-navbar .nav-link.active {
    color: var(--sd-brand-strong);
    background: var(--sd-brand-soft);
}

/* ---------- Buttons ---------- */
.btn-sd-primary {
    background: var(--sd-gradient-brand);
    color: var(--sd-on-brand);
    border: none;
    font-weight: 700;
    padding: .85rem 1.75rem;
    border-radius: var(--sd-radius-pill);
    box-shadow: 0 10px 24px rgba(15, 74, 46, .28);
    transition: transform var(--sd-motion-fast) var(--sd-easing), box-shadow var(--sd-motion-fast) var(--sd-easing);
}

.btn-sd-primary:hover,
.btn-sd-primary:focus-visible {
    color: var(--sd-on-brand);
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(15, 74, 46, .34);
}

.btn-sd-outline {
    background: var(--sd-surface);
    color: var(--sd-text);
    border: 1.5px solid var(--sd-outline);
    font-weight: 700;
    padding: .85rem 1.75rem;
    border-radius: var(--sd-radius-pill);
    transition: border-color var(--sd-motion-fast) var(--sd-easing), transform var(--sd-motion-fast) var(--sd-easing);
}

.btn-sd-outline:hover,
.btn-sd-outline:focus-visible {
    color: var(--sd-brand-strong);
    border-color: var(--sd-brand);
    transform: translateY(-2px);
}

.btn-sd-lg {
    padding: 1.05rem 2.25rem;
    font-size: 1.05rem;
}

/* ---------- Cards ---------- */
.sd-card {
    background: var(--sd-surface);
    border: 1px solid var(--sd-outline);
    border-radius: var(--sd-radius-lg);
    box-shadow: var(--sd-shadow-sm);
    transition: transform var(--sd-motion) var(--sd-easing), box-shadow var(--sd-motion) var(--sd-easing);
    height: 100%;
}

.sd-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--sd-shadow);
}

.sd-card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--sd-radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--sd-brand-soft);
    color: var(--sd-brand-strong);
    font-size: 1.5rem;
}

/* Accent variants for feature-group icons */
.sd-card-icon.accent-blue { background: var(--sd-accent-blue-soft); color: var(--sd-accent-blue); }
.sd-card-icon.accent-purple { background: var(--sd-accent-purple-soft); color: var(--sd-accent-purple); }
.sd-card-icon.accent-teal { background: var(--sd-accent-teal-soft); color: var(--sd-accent-teal); }
.sd-card-icon.accent-amber { background: var(--sd-accent-amber-soft); color: var(--sd-warning); }

/* ---------- Stat item ---------- */
.sd-stat .sd-stat-value {
    font-size: clamp(2rem, 2.5vw + 1rem, 3rem);
    font-weight: 800;
    color: var(--sd-brand-strong);
}

.sd-stat .sd-stat-label {
    color: var(--sd-text-secondary);
    font-weight: 600;
}

/* ---------- Phone mockup ---------- */
.sd-phone {
    width: 260px;
    max-width: 100%;
    aspect-ratio: 9 / 19.5;
    margin-inline: auto;
    background: #0B1220;
    border-radius: 42px;
    padding: 10px;
    box-shadow: var(--sd-shadow-lg);
    position: relative;
}

.sd-phone::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 40%;
    height: 22px;
    background: #0B1220;
    border-radius: 0 0 16px 16px;
    z-index: 2;
}

.sd-phone-screen {
    width: 100%;
    height: 100%;
    background: var(--sd-surface);
    border-radius: 32px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
}

.sd-phone-lg {
    width: 300px;
}

.sd-phone-sm {
    width: 210px;
}

/* Illustrative mock screen content blocks */
.sd-mock-topbar {
    background: var(--sd-gradient-brand);
    padding: 1.75rem .9rem .9rem;
    color: #fff;
}

.sd-mock-topbar .sd-mock-title {
    font-weight: 700;
    font-size: .95rem;
}

.sd-mock-topbar .sd-mock-sub {
    font-size: .7rem;
    opacity: .85;
}

.sd-mock-body {
    padding: .75rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
    flex: 1;
    background: var(--sd-surface-variant);
}

.sd-mock-row {
    background: var(--sd-surface);
    border-radius: 10px;
    padding: .55rem .65rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    box-shadow: var(--sd-shadow-sm);
}

.sd-mock-dot {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    flex: none;
    background: var(--sd-brand-soft);
}

.sd-mock-lines {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: .28rem;
}

.sd-mock-line {
    height: 6px;
    border-radius: 4px;
    background: var(--sd-outline);
}

.sd-mock-line.w-60 { width: 60%; }
.sd-mock-line.w-40 { width: 40%; }
.sd-mock-line.w-80 { width: 80%; }

.sd-mock-pill {
    font-size: .6rem;
    font-weight: 700;
    padding: .15rem .5rem;
    border-radius: var(--sd-radius-pill);
    background: var(--sd-brand-soft);
    color: var(--sd-brand-strong);
}

.sd-mock-pill.warn { background: var(--sd-warning-soft); color: var(--sd-warning); }

.sd-mock-stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .5rem;
}

.sd-mock-stat-card {
    background: var(--sd-surface);
    border-radius: 10px;
    padding: .6rem;
    box-shadow: var(--sd-shadow-sm);
}

.sd-mock-stat-card .val {
    font-weight: 800;
    color: var(--sd-brand-strong);
    font-size: .95rem;
}

.sd-mock-stat-card .lbl {
    font-size: .6rem;
    color: var(--sd-text-secondary);
}

.sd-mock-navbar {
    display: flex;
    justify-content: space-around;
    padding: .5rem 0;
    background: var(--sd-surface);
    border-top: 1px solid var(--sd-outline);
}

.sd-mock-navbar .item {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    background: var(--sd-outline);
}

.sd-mock-navbar .item.active {
    background: var(--sd-brand);
}

/* ---------- FAQ accordion ---------- */
.sd-faq .accordion-item {
    border: 1px solid var(--sd-outline);
    border-radius: var(--sd-radius) !important;
    overflow: hidden;
    margin-bottom: 1rem;
}

.sd-faq .accordion-button {
    font-weight: 700;
    color: var(--sd-text);
    background: var(--sd-surface);
}

.sd-faq .accordion-button:not(.collapsed) {
    color: var(--sd-brand-strong);
    background: var(--sd-brand-soft);
    box-shadow: none;
}

.sd-faq .accordion-button:focus {
    box-shadow: none;
    outline: 3px solid var(--sd-accent-amber);
    outline-offset: -2px;
}

/* ---------- Testimonials ---------- */
.sd-testimonial {
    background: var(--sd-surface);
    border: 1px solid var(--sd-outline);
    border-radius: var(--sd-radius-lg);
    box-shadow: var(--sd-shadow-sm);
    padding: 2rem;
    height: 100%;
}

.sd-testimonial-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--sd-gradient-brand);
    color: #fff;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.sd-stars {
    color: var(--sd-accent-amber);
    letter-spacing: .1em;
}

/* ---------- CTA banner ---------- */
.sd-cta {
    background: var(--sd-gradient-brand);
    border-radius: var(--sd-radius-lg);
    color: #fff;
    padding: clamp(2.5rem, 5vw, 4.5rem);
    position: relative;
    overflow: hidden;
}

.sd-cta::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 20%, rgba(255, 255, 255, .12), transparent 55%);
    pointer-events: none;
}

.sd-cta .btn-sd-primary {
    background: #fff;
    color: var(--sd-brand-strong);
    box-shadow: 0 10px 24px rgba(0, 0, 0, .18);
}

.sd-cta .btn-sd-primary:hover { color: var(--sd-brand-strong); }

/* ---------- Footer ---------- */
.sd-footer {
    background: var(--sd-brand-dark);
    color: rgba(255, 255, 255, .78);
    position: relative;
    padding-top: 70px;
    overflow: hidden;
}

/* Wavy top edge on the footer, matching the hero's wave style (shallow
   flowing curve + thin translucent crest highlight) instead of a flat color
   block. Not the shared --sd-wave-hero graphic itself, because here the fill
   sits ABOVE the curve and is the page background — the inverse of the hero —
   but the amplitude and stroke weight are kept in step with it deliberately. */
.sd-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    z-index: 0;
    pointer-events: none;
    background-repeat: no-repeat;
    background-position: top center;
    background-size: 100% 100%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 100' preserveAspectRatio='none'%3E%3Cpath d='M0,0 L0,44 C200,44 320,70 540,72 C800,74 940,56 1160,46 C1300,40 1370,36 1440,36 L1440,0 Z' fill='%23F4F7FA'/%3E%3Cpath d='M0,44 C200,44 320,70 540,72 C800,74 940,56 1160,46 C1300,40 1370,36 1440,36' fill='none' stroke='%23FFFFFF' stroke-opacity='.5' stroke-width='2.5' stroke-linecap='round'/%3E%3C/svg%3E");
}

.sd-footer > * {
    position: relative;
    z-index: 1;
}

.sd-footer h6 {
    color: #fff;
    font-weight: 700;
    letter-spacing: .03em;
    text-transform: uppercase;
    font-size: .8rem;
    margin-bottom: 1.1rem;
}

.sd-footer a {
    color: rgba(255, 255, 255, .72);
}

.sd-footer a:hover {
    color: #fff;
}

.sd-social-link {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, .08);
    transition: background var(--sd-motion-fast) var(--sd-easing);
}

.sd-social-link:hover {
    background: var(--sd-brand);
}

.sd-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .12);
    font-size: .875rem;
}

/* ---------- Download card ---------- */
.sd-download-card {
    background: var(--sd-surface);
    border: 1px solid var(--sd-outline);
    border-radius: var(--sd-radius-lg);
    box-shadow: var(--sd-shadow);
    padding: clamp(1.5rem, 3vw, 2.75rem);
}

.sd-download-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}

.sd-download-meta .badge-sd {
    background: var(--sd-surface-variant);
    color: var(--sd-text-secondary);
    font-weight: 600;
    border-radius: var(--sd-radius-pill);
    padding: .45rem .9rem;
    font-size: .8125rem;
}

/* ---------- Misc ---------- */
.sd-badge-soft {
    background: var(--sd-brand-soft);
    color: var(--sd-brand-strong);
    border-radius: var(--sd-radius-pill);
    padding: .3rem .85rem;
    font-weight: 700;
    font-size: .78rem;
    display: inline-block;
}

.sd-step-number {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--sd-gradient-brand);
    color: #fff;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.sd-divider-line {
    height: 1px;
    background: var(--sd-outline);
    border: none;
}