/* =========================================================
   FLOW DIGITAL - OPTIMIZED PREMIUM THEME SYSTEM
   Grey / Black / White / Light Blue
   Optimized For:
   - Premium animations
   - Particle system
   - Snap scrolling
   - 3D effects
   - Smooth interactions
========================================================= */


/* =========================================================
   1. GLOBAL RESET
========================================================= */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, sans-serif;
    background-color: #0f0f10;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;

    /* Snap scrolling */
    scroll-snap-type: y mandatory;

    /* Better rendering */
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}


/* =========================================================
   2. PARTICLE BACKGROUND SUPPORT
========================================================= */

#particle-container {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    bottom: 0;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(77, 166, 255, 0.35);
    animation: floatUp linear forwards;
    will-change: transform, opacity;
}

@keyframes floatUp {

    from {
        transform: translateY(100vh);
        opacity: 0;
    }

    20% {
        opacity: 0.7;
    }

    to {
        transform: translateY(-10vh);
        opacity: 0;
    }
}


/* =========================================================
   3. GLOBAL ANIMATION STATES
========================================================= */

.hidden {
    opacity: 0;
    transform: translateY(40px);
}

.show {
    opacity: 1;
    transform: translateY(0);
    transition:
        opacity 0.7s cubic-bezier(0.2, 0.8, 0.2, 1),
        transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
}


/* =========================================================
   4. NAVBAR
========================================================= */

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;

    padding: 20px 40px;

    background: rgba(26, 26, 26, 0.85);

    backdrop-filter: blur(12px);

    position: sticky;
    top: 0;

    z-index: 1000;

    border-bottom: 1px solid #2a2a2a;
}

.logo {
    font-size: 22px;
    font-weight: bold;
    color: #4da6ff;
}

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    margin-left: 20px;

    transition:
        color 0.3s ease,
        transform 0.3s ease;
}

.nav-links a:hover {
    color: #4da6ff;
    transform: translateY(-2px);
}


/* =========================================================
   5. HERO SECTION
========================================================= */

.hero {
    padding: 120px 20px;
    text-align: center;

    background:
        radial-gradient(circle at top,
        #1a1a1a,
        #0f0f10);

    border-bottom: 1px solid #2a2a2a;

    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 900px;
    margin: auto;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 52px;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #ffffff;
}

.hero p {
    font-size: 18px;
    color: #b5b5b5;
    margin-bottom: 30px;
    padding: 0 10px;
}


/* =========================================================
   6. HERO BUTTONS
========================================================= */

.hero-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;

    flex-wrap: wrap;

    margin-bottom: 50px;
}

.btn {
    display: inline-block;

    padding: 12px 25px;

    background-color: #4da6ff;

    color: #000;
    text-decoration: none;
    font-weight: bold;

    border-radius: 8px;

    border: none;
    cursor: pointer;

    position: relative;
    overflow: hidden;

    transition:
        background-color 0.3s ease,
        transform 0.3s ease,
        box-shadow 0.3s ease;

    will-change: transform;
}

.btn:hover {
    background-color: #2f8cff;

    transform: translateY(-2px) scale(1.05);

    box-shadow:
        0 10px 20px rgba(77, 166, 255, 0.25);
}

.btn.secondary {
    background: transparent;
    border: 2px solid #4da6ff;
    color: #4da6ff;
}

.btn.secondary:hover {
    background-color: #4da6ff;
    color: #000;
}


/* =========================================================
   7. HERO STATS
========================================================= */

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 20px;

    flex-wrap: wrap;
}

.stat-box {
    background-color: #1a1a1a;

    padding: 15px 25px;

    border-radius: 12px;

    border-left: 3px solid #4da6ff;

    min-width: 160px;

    transition:
        transform 0.3s ease,
        box-shadow 0.3s ease;

    will-change: transform;
}

.stat-box:hover {
    transform: translateY(-5px);

    box-shadow:
        0 10px 20px rgba(77, 166, 255, 0.2);
}

.stat-box h3 {
    color: #4da6ff;
    margin-bottom: 5px;
}

.stat-box p {
    color: #b5b5b5;
    font-size: 14px;
}


/* =========================================================
   8. GLOBAL SECTIONS
========================================================= */

.section,
.about-preview,
.what-we-do,
.who-we-are,
.why-different,
.service-block,
.contact-section {
    padding: 80px 20px;

    max-width: 1100px;

    margin: auto;

    scroll-snap-align: start;
    scroll-snap-stop: always;
}

.section h2,
.about-header h2,
.section-header h2,
.who-header h2,
.why-header h2,
.services-intro h2,
.contact-header h2 {
    font-size: 36px;
    margin-bottom: 10px;
    color: #ffffff;
}

.section p,
.about-header p,
.section-header p,
.who-header p,
.why-header p,
.services-intro p,
.contact-header p {
    color: #b5b5b5;
    line-height: 1.7;
}

.section.dark,
.service-block.dark {
    background-color: #151515;
}


/* =========================================================
   9. GRID SYSTEMS
========================================================= */

.about-grid,
.services-grid,
.why-grid,
.contact-grid {
    display: grid;
    gap: 20px;
}

.about-grid,
.services-grid,
.why-grid {
    grid-template-columns: repeat(3, 1fr);
}

.contact-grid {
    grid-template-columns: repeat(2, 1fr);
}


/* =========================================================
   10. PREMIUM CARD SYSTEM
========================================================= */

.card,
.about-card,
.service-box,
.service-card,
.why-card,
.contact-card,
.who-card,
.stat-box {
    background-color: #1a1a1a;

    border-radius: 12px;

    border-left: 4px solid #4da6ff;

    transition:
        transform 0.3s ease,
        box-shadow 0.3s ease,
        border-color 0.3s ease;

    will-change: transform;

    transform-style: preserve-3d;
}

.card,
.about-card,
.service-box,
.service-card,
.why-card,
.contact-card {
    padding: 25px;
}

.who-card {
    padding: 35px;
}

.card:hover,
.about-card:hover,
.service-box:hover,
.service-card:hover,
.why-card:hover,
.contact-card:hover,
.who-card:hover {
    transform: translateY(-8px);

    box-shadow:
        0 10px 25px rgba(77, 166, 255, 0.2);
}


/* =========================================================
   11. CARD TYPOGRAPHY
========================================================= */

.about-card h3,
.service-box h3,
.why-card h3,
.contact-card h3 {
    color: #4da6ff;
    margin-bottom: 10px;
}

.about-card p,
.service-box p,
.why-card p,
.contact-card p,
.who-card p {
    color: #b5b5b5;
    line-height: 1.7;
    font-size: 14px;
}


/* =========================================================
   12. CONTACT SECTION
========================================================= */

.contact-card.highlight {
    border-left: 4px solid #25D366;

    background:
        linear-gradient(145deg,
        #1a1a1a,
        #141414);
}

.contact-card.highlight h3 {
    color: #25D366;
}

.contact-card a {
    display: inline-block;

    padding: 12px 18px;

    background-color: #4da6ff;

    color: #000;

    text-decoration: none;
    font-weight: bold;

    border-radius: 6px;

    transition:
        transform 0.3s ease,
        background-color 0.3s ease;
}

.contact-card a:hover {
    background-color: #2f8cff;
    transform: scale(1.05);
}

.contact-card.highlight a {
    background-color: #25D366;
}

.contact-card.highlight a:hover {
    background-color: #1ebe5d;
}


/* =========================================================
   13. SERVICES PAGE
========================================================= */

.services-intro {
    text-align: center;
    padding: 60px 20px;
    max-width: 900px;
    margin: auto;
}

.service-block h2 {
    text-align: center;
    margin-bottom: 30px;
}

.goal {
    color: #ffffff;
    margin-bottom: 15px;
}

.result {
    margin-top: 15px;
    color: #4da6ff;
    font-weight: bold;
}

.service-card ul {
    margin-left: 20px;
    color: #b5b5b5;
}

.service-card ul li {
    margin-bottom: 8px;
}


/* =========================================================
   14. FOOTER
========================================================= */

footer {
    text-align: center;

    padding: 20px;

    background-color: #1a1a1a;

    color: #aaa;

    margin-top: 40px;

    border-top: 1px solid #2a2a2a;
}


/* =========================================================
   15. WHATSAPP FLOAT BUTTON
========================================================= */

.whatsapp {
    position: fixed;

    bottom: 20px;
    right: 20px;

    background-color: #25D366;

    color: white;

    padding: 15px 18px;

    border-radius: 50px;

    text-decoration: none;
    font-weight: bold;

    box-shadow:
        0 0 15px rgba(0, 0, 0, 0.4);

    z-index: 999;

    transition:
        transform 0.3s ease,
        box-shadow 0.3s ease;
}

.whatsapp:hover {
    transform: scale(1.1);

    box-shadow:
        0 0 25px rgba(37, 211, 102, 0.4);
}


/* =========================================================
   16. RIPPLE ANIMATION
========================================================= */

@keyframes ripple {

    to {
        transform: scale(6);
        opacity: 0;
    }

}


/* =========================================================
   17. MOBILE RESPONSIVE
========================================================= */

@media (max-width: 900px) {

    .about-grid,
    .services-grid,
    .why-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

}

@media (max-width: 768px) {

    nav {
        flex-direction: column;
        text-align: center;
    }

    .nav-links {
        margin-top: 10px;
    }

    .hero {
        padding: 100px 20px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .section h2,
    .about-header h2,
    .section-header h2,
    .who-header h2,
    .why-header h2,
    .services-intro h2,
    .contact-header h2 {
        font-size: 28px;
    }

    .stat-box {
        width: 100%;
        text-align: center;
    }

    .contact-card {
        text-align: center;
    }

    .who-card {
        padding: 25px;
    }

}