/* ============================================================
   Coventra Data Solutions — custom styles
   Works alongside Tailwind CDN
   ============================================================ */

html {
    scroll-behavior: smooth;
}

::selection {
    background: #4f46e5;
    color: #fff;
}

/* ---------- Hero flip card ---------- */
.hero-flip-card {
    width: 100%;
    height: 35rem;
    perspective: 1600px;
}
.hero-flip-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    transform-style: preserve-3d;
}
.hero-flip-card.is-flipped .hero-flip-inner {
    transform: rotateY(180deg);
}
.hero-flip-front,
.hero-flip-back {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}
.hero-flip-back {
    transform: rotateY(180deg);
}
@media (prefers-reduced-motion: reduce) {
    .hero-flip-inner {
        transition: none;
    }
}

/* ---------- Intelligence pipeline (homepage) ---------- */
.pipeline-flow-line {
    position: absolute;
    top: 4.5rem;
    bottom: 0.25rem;
    left: 50%;
    width: 2px;
    transform: translateX(-50%);
    background: repeating-linear-gradient(
        to bottom,
        rgba(99, 102, 241, 0.5) 0,
        rgba(99, 102, 241, 0.5) 6px,
        transparent 6px,
        transparent 12px
    );
    background-size: 2px 24px;
    animation: pipeline-flow 1.1s linear infinite;
}
@keyframes pipeline-flow {
    from { background-position: 0 0; }
    to { background-position: 0 24px; }
}
.pipeline-layer {
    animation: pipeline-layer-pulse 3.6s ease-in-out infinite;
}
@keyframes pipeline-layer-pulse {
    0%, 100% { border-color: rgba(255, 255, 255, 0.1); }
    50% { border-color: rgba(99, 102, 241, 0.4); }
}
.engine-card {
    transition: border-color 0.3s ease;
}
.pipeline-core-ring {
    position: absolute;
    inset: -10px;
    border: 2px dashed rgba(99, 102, 241, 0.45);
    border-radius: 1.25rem;
    animation: pipeline-core-spin 7s linear infinite;
}
@keyframes pipeline-core-spin {
    to { transform: rotate(360deg); }
}
.flow-arrow {
    animation: flow-arrow-pulse 1.6s ease-in-out infinite;
}
@keyframes flow-arrow-pulse {
    0%, 100% { opacity: 0.35; transform: translate(0, -50%); }
    50% { opacity: 1; transform: translate(4px, -50%); }
}
.progress-fill {
    width: 0%;
    transition: width 1.4s cubic-bezier(0.22, 1, 0.36, 1);
}
@media (prefers-reduced-motion: reduce) {
    .pipeline-core-ring,
    .flow-arrow,
    .pipeline-layer,
    .pipeline-flow-line {
        animation: none;
    }
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #0b1224;
}
::-webkit-scrollbar-thumb {
    background: #334166;
    border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover {
    background: #4f46e5;
}

/* ---------- Scroll reveal ---------- */
.reveal {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform;
}
.reveal.reveal-left {
    transform: translateX(-48px);
}
.reveal.reveal-right {
    transform: translateX(48px);
}
.reveal.reveal-scale {
    transform: scale(0.9);
}
.reveal.is-visible {
    opacity: 1;
    transform: none;
}

/* Stagger children */
.stagger > * {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.stagger.is-visible > * {
    opacity: 1;
    transform: none;
}
.stagger.is-visible > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.is-visible > *:nth-child(2) { transition-delay: 0.15s; }
.stagger.is-visible > *:nth-child(3) { transition-delay: 0.25s; }
.stagger.is-visible > *:nth-child(4) { transition-delay: 0.35s; }
.stagger.is-visible > *:nth-child(5) { transition-delay: 0.45s; }
.stagger.is-visible > *:nth-child(6) { transition-delay: 0.55s; }
.stagger.is-visible > *:nth-child(7) { transition-delay: 0.65s; }
.stagger.is-visible > *:nth-child(8) { transition-delay: 0.75s; }

@media (prefers-reduced-motion: reduce) {
    .reveal,
    .stagger > * {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}

/* ---------- Accent text (flat) ---------- */
.text-gradient {
    color: #818cf8; /* indigo-400 */
}

/* ---------- Hero background ---------- */
/* ---------- Floating hero cards ---------- */
.float-slow {
    animation: floaty 6s ease-in-out infinite;
}
.float-slower {
    animation: floaty 8s ease-in-out infinite reverse;
}
@keyframes floaty {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-14px); }
}

/* ---------- Glass nav ---------- */
#navbar {
    transition: background-color 0.35s ease, box-shadow 0.35s ease,
        backdrop-filter 0.35s ease, border-color 0.35s ease;
    border-bottom: 1px solid transparent;
}
#navbar {
    background: #000030;
    border-bottom-color: rgba(99, 102, 241, 0.22);
}
#navbar.nav-scrolled {
    background: #000030;
    box-shadow: 0 8px 32px rgba(2, 6, 23, 0.45);
}
#topbar {
    background: #292878;
}

/* Nav link underline */
.nav-link {
    position: relative;
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: #6366f1;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

/* ---------- Cards ---------- */
.card-hover {
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.4s ease, border-color 0.4s ease;
}
.card-hover:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.55) !important;
}

.icon-tile {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
        background 0.4s ease;
}
.card-hover:hover .icon-tile {
    transform: scale(1.1) rotate(-4deg);
}

/* ---------- Buttons ---------- */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, background-color 0.3s ease;
}
.btn-primary:hover {
    transform: translateY(-2px);
}
.btn-primary:active {
    transform: translateY(0);
}

/* ---------- Marquee ---------- */
.marquee-track {
    display: flex;
    width: max-content;
    animation: marquee 32s linear infinite;
}
.marquee:hover .marquee-track {
    animation-play-state: paused;
}
@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ---------- Process connector ---------- */
.process-line {
    background: rgba(99, 102, 241, 0.45);
}

/* ---------- Pulse dot (static, no glow ring) ---------- */
.pulse-dot {
    position: relative;
}

/* ---------- Ticker bar animation ---------- */
.bar-anim {
    transform-origin: bottom;
    animation: bar-grow 2.2s ease-in-out infinite alternate;
}
@keyframes bar-grow {
    from { transform: scaleY(0.55); }
    to { transform: scaleY(1); }
}

/* ---------- FAQ accordion ---------- */
.faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.faq-answer > div {
    overflow: hidden;
}
.faq-item.open .faq-answer {
    grid-template-rows: 1fr;
}
.faq-item .faq-chevron {
    transition: transform 0.35s ease;
}
.faq-item.open .faq-chevron {
    transform: rotate(180deg);
}

/* ---------- Back to top ---------- */
#backToTop {
    opacity: 0;
    pointer-events: none;
    transform: translateY(16px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
#backToTop.show {
    opacity: 1;
    pointer-events: auto;
    transform: none;
}

/* ---------- Mobile menu ---------- */
#mobileMenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}
#mobileMenu.open {
    max-height: 85vh;
    overflow-y: auto;
}

/* ---------- Form focus (border only, no glow) ---------- */
.input-glow:focus {
    box-shadow: none;
}