/* ============================================================
   VIRELLO — Custom CSS Effects Layer (White & Blue Theme)
   Works alongside Tailwind CSS utilities
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@200;300;400;500;600;700;800&display=swap');

/* --- Design Tokens (Light / White-Blue) --- */
:root {
    --v-white: #ffffff;
    --v-void: #f8f9fc;
    --v-surface: #ffffff;
    --v-surface-hover: #f0f2f8;
    --v-border: #e2e5ef;
    --v-text: #1d1d1f;
    --v-text-dim: #6e6e73;
    --v-accent: #0a84ff;
    --v-accent-light: #e8f2ff;
    --v-accent-glow: rgba(10, 132, 255, 0.18);
    --v-aurora-1: rgba(10, 132, 255, 0.07);
    --v-aurora-2: rgba(94, 92, 230, 0.05);
    --v-aurora-3: rgba(48, 209, 88, 0.04);
    --v-font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --v-font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --v-ease-premium: cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Base Resets --- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--v-font-body);
    background-color: var(--v-void);
    color: var(--v-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* --- Aurora Mesh Gradient Background (Soft Light) --- */
.aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.aurora-bg::before,
.aurora-bg::after,
.aurora-bg .aurora-node {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
    animation-direction: alternate;
}

.aurora-bg::before {
    width: 900px;
    height: 900px;
    top: -25%;
    left: -15%;
    background: radial-gradient(circle, rgba(10, 132, 255, 0.08) 0%, transparent 70%);
    animation: aurora-drift-1 18s infinite alternate;
}

.aurora-bg::after {
    width: 700px;
    height: 700px;
    top: 35%;
    right: -20%;
    background: radial-gradient(circle, rgba(94, 92, 230, 0.06) 0%, transparent 70%);
    animation: aurora-drift-2 22s infinite alternate;
}

.aurora-bg .aurora-node {
    width: 600px;
    height: 600px;
    bottom: -15%;
    left: 25%;
    background: radial-gradient(circle, rgba(10, 132, 255, 0.05) 0%, transparent 70%);
    animation: aurora-drift-3 25s infinite alternate;
}

@keyframes aurora-drift-1 {
    0%   { transform: translate(0, 0) scale(1); opacity: 0.6; }
    50%  { transform: translate(15%, 10%) scale(1.15); opacity: 0.9; }
    100% { transform: translate(-5%, 20%) scale(1.05); opacity: 0.7; }
}

@keyframes aurora-drift-2 {
    0%   { transform: translate(0, 0) scale(1); opacity: 0.5; }
    50%  { transform: translate(-20%, -10%) scale(1.2); opacity: 0.8; }
    100% { transform: translate(10%, -15%) scale(0.95); opacity: 0.6; }
}

@keyframes aurora-drift-3 {
    0%   { transform: translate(0, 0) scale(1); opacity: 0.4; }
    50%  { transform: translate(10%, -20%) scale(1.1); opacity: 0.7; }
    100% { transform: translate(-15%, 5%) scale(1.05); opacity: 0.5; }
}

/* --- Floating Island Navbar --- */
.glass-nav {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: saturate(180%) blur(32px);
    -webkit-backdrop-filter: saturate(180%) blur(32px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.06),
        0 12px 40px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border-radius: 980px;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-nav-scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 
        0 2px 12px rgba(0, 0, 0, 0.08),
        0 8px 32px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transform: translateX(-50%) scale(0.97);
}

/* Nav text colors */
.glass-nav a,
.glass-nav button {
    color: #1d1d1f;
}

/* Fix: btn-glow MUST keep white text inside nav */
.glass-nav .btn-glow {
    color: #ffffff !important;
}

.glass-nav .nav-link-dim {
    color: #6e6e73;
}

.glass-nav .nav-link-dim:hover {
    color: #1d1d1f;
}

/* --- White Footer --- */
.footer-white {
    background: #ffffff;
    border-top: 1px solid #e2e5ef;
}

.footer-white .footer-heading {
    color: #6e6e73;
}

.footer-white .footer-link {
    color: #6e6e73;
}

.footer-white .footer-link:hover {
    color: #1d1d1f;
}

.footer-white .footer-copy-text {
    color: #86868b;
}

.footer-white .footer-divider {
    border-color: #e2e5ef;
}

.footer-white .social-icon {
    color: #86868b;
}

.footer-white .social-icon:hover {
    color: #1d1d1f;
}

/* --- Mega Menu (White) --- */
.mega-menu {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: opacity 0.35s var(--v-ease-premium),
                transform 0.35s var(--v-ease-premium),
                visibility 0.35s;
}

.mega-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* --- Mobile Bottom Sheet --- */
.mobile-sheet {
    transform: translateY(100%);
    transition: transform 0.5s var(--v-ease-premium);
}

.mobile-sheet.active {
    transform: translateY(0);
}

.mobile-sheet-overlay {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s;
}

.mobile-sheet-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* --- Gradient Text Utility --- */
.text-gradient-hero {
    background: linear-gradient(180deg, #1d1d1f 20%, #6e6e73 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-accent {
    background: linear-gradient(135deg, #0a84ff 0%, #5e5ce6 50%, #30d158 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --- Shimmer Skeleton Loading --- */
.shimmer {
    position: relative;
    overflow: hidden;
    background: var(--v-surface-hover);
}

.shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.5) 40%,
        rgba(255, 255, 255, 0.8) 50%,
        rgba(255, 255, 255, 0.5) 60%,
        transparent 100%
    );
    animation: shimmer-sweep 2.5s ease-in-out infinite;
}

.shimmer.loaded::after {
    animation: none;
    opacity: 0;
}

@keyframes shimmer-sweep {
    0%   { left: -100%; }
    100% { left: 200%; }
}

/* --- Bento Card (Light) --- */
.bento-card {
    background: #ffffff;
    border: 1px solid var(--v-border);
    transition: transform 0.6s var(--v-ease-premium),
                box-shadow 0.6s var(--v-ease-premium),
                border-color 0.6s var(--v-ease-premium);
    will-change: transform;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.bento-card:hover {
    transform: translateY(-6px) scale(1.01);
    border-color: rgba(10, 132, 255, 0.15);
    box-shadow: 0 20px 48px rgba(10, 132, 255, 0.08),
                0 4px 16px rgba(0, 0, 0, 0.06);
}

.bento-card-hero:hover {
    box-shadow: 0 24px 64px rgba(10, 132, 255, 0.12),
                0 0 0 1px rgba(10, 132, 255, 0.1);
}

/* --- Parallax Scroll --- */
.parallax-layer {
    transition: transform 0.1s linear;
    will-change: transform;
}

/* --- Scroll Reveal Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s var(--v-ease-premium),
                transform 0.9s var(--v-ease-premium);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.9s var(--v-ease-premium),
                transform 0.9s var(--v-ease-premium);
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.9s var(--v-ease-premium),
                transform 0.9s var(--v-ease-premium);
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.9s var(--v-ease-premium),
                transform 0.9s var(--v-ease-premium);
}

.reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
}

/* Stagger children */
.stagger-children > * {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--v-ease-premium),
                transform 0.7s var(--v-ease-premium);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.12s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.13s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.26s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.33s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.40s; opacity: 1; transform: translateY(0); }

/* --- Stepper Progress Bar --- */
.stepper-progress {
    position: relative;
    height: 3px;
    background: var(--v-border);
    border-radius: 4px;
    overflow: hidden;
}

.stepper-progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--v-accent), #5e5ce6);
    border-radius: 4px;
    transition: width 0.6s var(--v-ease-premium);
}

.stepper-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--v-border);
    transition: background 0.4s ease, box-shadow 0.4s ease, transform 0.4s var(--v-ease-premium);
}

.stepper-dot.active {
    background: var(--v-accent);
    box-shadow: 0 0 12px var(--v-accent-glow);
    transform: scale(1.25);
}

.stepper-dot.completed {
    background: #30d158;
    box-shadow: 0 0 8px rgba(48, 209, 88, 0.3);
}

/* --- Glass Card Utility (Light) --- */
.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

/* --- Tech Carousel --- */
.tech-carousel {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    cursor: grab;
    padding: 1rem 0;
}

.tech-carousel::-webkit-scrollbar {
    display: none;
}

.tech-carousel:active {
    cursor: grabbing;
}

.tech-pill {
    flex-shrink: 0;
    padding: 0.75rem 1.5rem;
    border-radius: 980px;
    background: #ffffff;
    border: 1px solid var(--v-border);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--v-text-dim);
    white-space: nowrap;
    transition: all 0.4s var(--v-ease-premium);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.tech-pill:hover {
    color: var(--v-accent);
    border-color: rgba(10, 132, 255, 0.2);
    background: var(--v-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(10, 132, 255, 0.08);
}

/* --- Counter Animation --- */
.counter-value {
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum";
}

/* --- Animated Stat Bar --- */
.stat-bar {
    height: 6px;
    border-radius: 3px;
    background: var(--v-border);
    overflow: hidden;
}

.stat-bar-fill {
    height: 100%;
    border-radius: 3px;
    width: 0;
    transition: width 1.5s var(--v-ease-premium);
}

/* --- CTA Glow Button --- */
.btn-glow {
    position: relative;
    overflow: hidden;
    background: var(--v-accent);
    color: #ffffff;
    transition: all 0.4s var(--v-ease-premium);
}

.btn-glow::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.6s var(--v-ease-premium);
    border-radius: 50%;
}

.btn-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--v-accent-glow),
                0 0 0 1px rgba(10, 132, 255, 0.3);
}

.btn-glow:hover::before {
    transform: translate(-50%, -50%) scale(1);
}

.btn-outline {
    background: transparent;
    color: var(--v-text);
    border: 1px solid var(--v-border);
    transition: all 0.4s var(--v-ease-premium);
}

.btn-outline:hover {
    border-color: var(--v-accent);
    background: var(--v-accent-light);
    color: var(--v-accent);
    transform: translateY(-2px);
}

/* --- Pagination --- */
.pagination-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--v-border);
    transition: all 0.3s ease;
    cursor: pointer;
}

.pagination-dot.active {
    background: var(--v-accent);
    width: 24px;
    border-radius: 4px;
}

/* --- Insight Card (Light) --- */
.insight-card {
    background: #ffffff;
    border: 1px solid var(--v-border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.5s var(--v-ease-premium);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.insight-card:hover {
    transform: translateY(-4px);
    border-color: rgba(10, 132, 255, 0.15);
    box-shadow: 0 16px 48px rgba(10, 132, 255, 0.08),
                0 4px 12px rgba(0, 0, 0, 0.04);
}

/* --- Floating Badge --- */
.float-badge {
    animation: float-gentle 5s ease-in-out infinite;
}

@keyframes float-gentle {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-8px); }
}

/* --- Smooth section divider --- */
.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--v-border), transparent);
}

/* --- Scrollbar Styling --- */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--v-void);
}

::-webkit-scrollbar-thumb {
    background: #c5c8d4;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--v-text-dim);
}

/* --- Lottie Container --- */
.lottie-container {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
}

/* --- Form Inputs (Light) --- */
.v-input {
    width: 100%;
    padding: 1rem 1.25rem;
    background: #f8f9fc;
    border: 1px solid var(--v-border);
    border-radius: 14px;
    color: var(--v-text);
    font-family: var(--v-font-body);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.v-input:focus {
    border-color: var(--v-accent);
    box-shadow: 0 0 0 3px var(--v-accent-glow);
    background: #ffffff;
}

.v-input::placeholder {
    color: #a0a0a8;
    opacity: 0.8;
}

.v-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236e6e73' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
    padding-right: 2.5rem;
}

/* --- Pulse Ring for Active Elements --- */
.pulse-ring {
    position: relative;
}

.pulse-ring::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--v-accent);
    transform: translate(-50%, -50%);
    animation: pulse-ring-anim 2s ease-out infinite;
}

@keyframes pulse-ring-anim {
    0%   { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

/* --- Mobile Thumb Zone Spacing --- */
@media (max-width: 768px) {
    .thumb-zone-btn {
        min-height: 52px;
        font-size: 1rem;
    }

    .mobile-sheet {
        border-radius: 28px 28px 0 0;
        max-height: 85vh;
        overflow-y: auto;
    }

    .mobile-sheet .mobile-nav-link {
        padding: 1.25rem 1.5rem;
        font-size: 1.1rem;
        border-radius: 16px;
    }
}