/* You will need a font-awesome link in your <head> for social icons to work: */
/* <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css"> */


:root {
    --bg:#0f1724;
    --card:#0b1220;
    --muted:#9aa4b2;
    --accent:#2c3e50;
    --white:#ffffff;
    --container:1200px;
    --radius:10px;
    --gap:1.25rem;
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

* {
    box-sizing:border-box
}

html, body {
    height:100%;
    margin:0;
    background:#fafcf7;
    color:#0b1220;
    font-family: "Roboto", sans-serif;
    font-weight: 800;
    font-style: normal;
}

.container {
    max-width:var(--container);
    margin:0 auto;
    padding:0 1rem
}

a {
    color:var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

/* Header */
.site-header {
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid #e6eef8;
    /* max-width: 1200px;
    margin: 0 auto;
    display: flex;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1); */
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logo img {
    height: 35px;
    width: 190px;
    border-radius: 6px;
}

.brand {
    display: flex;
    align-items: center;
    height: 50px;
    color: var(--accent);
    transition: color 0.3s;
    text-decoration: none;
}

.brand:hover {
    color: #666;
}

/* nav */
.site-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.site-nav a {
    /* display: inline-block; */
    padding: 0.6rem 0.4rem;
    text-decoration: none;
}

.site-nav ul li a {
    transition: color 0.3s;
}

.site-nav ul li a:hover {
    color: #666;
}

.nav-toggle {
    display: none;
    background: none;
    order: 0;
    cursor: pointer;
    width: 36px;
    height: 28px;
    position: relative;
}

.nav-toggle span {
    display: block;
    height: 3px;
    background: #111;
    margin: 5px 0;
    border-radius: 4px;
    transition: 0.2s;
}

/* Skills */
/* সেকশন স্টাইল */
.circular-skills-section {
    padding: 20px 20px;
    background-color: #ffffff; /* ক্লিন সাদা ব্যাকগ্রাউন্ড */
    color: #333333; /* গাঢ় টেক্সট */
    text-align: center;
}

.circular-skills-section h2 {
    font-size: 40px;
    margin-bottom: 60px;
    color: #020617; /* ডিপ কর্পোরেট ব্লু */
}

/* গ্রিড ব্যবস্থা */
.skills-grid {
    display: flex;
    justify-content: center;
    gap: 50px; /* আইটেমগুলোর মধ্যে একটু বেশি দূরত্ব */
    flex-wrap: wrap;
}

.circular-skill-item {
    width: 250px;
    padding: 30px 20px; /* বেশি প্যাডিং */
    border-radius: 12px;
    background-color: #020617; /* খুব হালকা গ্রে/ব্লু ব্যাকগ্রাউন্ড */
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08); /* পরিষ্কার ছায়া */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.circular-skill-item h3 {
    margin-top: 15px;
    color: #3498db; /* মিডিয়াম ব্লু অ্যাকসেন্ট */
    font-weight: 600;
}

.circular-skill-item p {
    font-size: 0.9em;
    color: #94a3b8;
    margin-top: 8px;
}

/* প্রোগ্রেস সার্কেল স্টাইল */
.progress-circle {
    position: relative;
    width: 150px;
    height: 150px;
    margin: 0 auto 20px auto;
}

.progress-circle svg {
    transform: rotate(-90deg);
}

.circle {
    fill: none;
    stroke-width: 4; /* বারের প্রস্থ সামান্য বাড়ানো হলো */
}

.circle-bg {
    /* সার্কেলের ব্যাকগ্রাউন্ড - ফাকা অংশ */
    stroke: #94a3b8; /* হালকা গ্রে */
}

/* অ্যাকসেন্ট রঙ: ভাইব্র্যান্ট টার্কোয়েজ */
.circle-fill {
    stroke: #3498db; /* ভাইব্র্যান্ট টার্কোয়েজ (Cyan) */
    stroke-linecap: round;
    transition: stroke-dasharray 1.5s ease-in-out;
}

/* শতাংশের টেক্সট */
.percent-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.8em; /* টেক্সটের আকার বাড়ানো হলো */
    font-weight: 700;
    color: #3498db; /* ডিপ ব্লু টেক্সট */
}

/* হোভার ইফেক্ট */
.circular-skill-item:hover {
    transform: translateY(-8px);
    background-color: #ffffff;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15); /* আরও গভীর এবং পেশাদার ছায়া */
    border: 1px solid #3498db; /* অ্যাকসেন্ট রঙের বর্ডার */
}

/* ছোট স্ক্রিনের জন্য রেসপন্সিভ */
@media (max-width: 768px) {
    .skills-grid {
        flex-direction: column;
        align-items: center;
    }
}

/* Experience */
/* Experience Section */
.experience-section {
  padding: 20px 20px;
  background: #ffffff;
  color: #ffffff;
}

.section-title {
  text-align: center;
  font-size: 40px;
  margin-bottom: 50px;
  color: #020617;
}

.experience-container {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.experience-card {
  background: #020617;
  padding: 25px;
  border-radius: 12px;
  border-left: 4px solid #3498db;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.experience-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px rgba(56, 189, 248, 0.2);
}

.duration {
  font-size: 0.9rem;
  color: #94a3b8;
}

.experience-card h3 {
  margin: 10px 0 5px;
  font-size: 1.4rem;
  color: #ffffff;
}

.experience-card h4 {
  margin-bottom: 15px;
  font-size: 1rem;
  font-weight: 500;
  color: #3498db;
}

.experience-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #94a3b8;
}

/* Contact Form */
.contact-section {
    padding: 60px 60px;
    background-color: #ffffff;
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    background: #020617;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 40px;
}

.contact-header {
    text-align: center;
    margin-bottom: 40px;
}

.contact-header h2 {
    font-size: 40px;
    color: #ffffff;
    margin-bottom: 10px;
}

.contact-header p {
    font-size: 16px;
    color: #ffffff;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* Form Styles */
.contact-form {
    display: flex;
    flex-direction: column;
    max-width: 80%;
    margin: auto;
    padding: auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: flex;
    margin-bottom: 8px;
    font-weight: bold;
    color: #ffffff;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ffffff;
    border-radius: 8px;
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.2);
}

.submit-button {
    background-color: #3498db;
    color: rgb(0, 0, 0);
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
    margin-top: 10px;
}

.submit-button:hover {
    background-color: #ffffff;
}

.submit-button:active {
    transform: translateY(1px);
}

.form-note {
    text-align: center;
    font-size: 12px;
    color: #ffffff;
    margin-top: 15px;
}

/* Footer */
footer {
    background-color: #020617;
    color: #ffffff;
    padding: 40px 20px 20px;
    font-family: "Roboto", sans-serif;
    font-style: normal;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Brand Section (Logo & Description) */
.footer-brand {
    flex-basis: 300px;
    flex-grow: 1; 
}

.footer-logo {
    width: 50px;
    height: auto;
    margin-bottom: 15px;
}

.footer-description {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-social-icons a {
    color: #ffffff;
    font-size: 20px;
    margin-right: 15px;
    transition: color 0.3s;
}

.footer-social-icons a:hover {
    color: #3498db;
}

/* Column Section (4 Columns) */
.footer-columns {
    display: flex;
    flex-wrap: wrap;
    flex-grow: 2;
    justify-content: space-between;
    min-width: 550px;
}

.footer-col {
    width: 25%;
    min-width: 120px;
    margin-bottom: 20px;
}

.col-title {
    font-size: 16px;
    color: #3498db;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-col ul li a:hover {
    color: #3498db;
}

/* Bottom Copyright Section */
.footer-bottom {
    max-width: 1200px;
    margin: 20px auto 0;
    text-align: center;
    font-size: 12px;
    color: #ffffff;
    padding-top: 10px;
}

.footer-bottom p {
    margin: 5px 0;
}

/* Media Query for Mobile/Tablet */
@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
    }

    .footer-brand, .footer-columns {
        width: 100%;
        min-width: unset;
    }

    .footer-columns {
        justify-content: flex-start;
        gap: 10px;
    }

    .footer-col {
        width: 45%;
    }
}

@media (max-width: 480px) {
    .footer-col {
        width: 100%;
    }
}

/* For Privacy Policy Page Only */
.umcontainer {
    font-family: "Roboto", sans-serif;
    background-color: #ffffff;
    color: #3498db;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    text-align: center;
}

/* Main Container Styling */
.maintenance-container {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    padding: 40px;
    max-width: 600px;
    width: 100%;
}

/* Icon Styling (The 🚧 emoji) */
.icon-box {
    margin-bottom: 20px;
}

.icon {
    font-size: 4rem; /* Large and prominent icon */
    display: inline-block;
    animation: pulse 2s infinite; /* Simple animation to grab attention */
}

.umicon {
    height: 60px;
    width: 60px;
}

/* Header and Paragraph Styling */
.umheading {
    font-size: 2.5rem;
    color: #3498db; /* Primary brand color */
    margin-bottom: 10px;
    font-weight: 600;
}

.message {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    color: #020617;
}

/* Contact Information */
.umcontact {
    margin-top: 30px;
    font-size: 0.95rem;
}

.umcontact a {
    color: #3498db;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.umcontact a:hover {
    color: #3498db;
}

/* Countdown Timer Styling */
.countdown-section {
    margin: 20px 0;
    padding: 20px 0;
    border-top: 1px dashed #ffffff;
    border-bottom: 1px dashed #ffffff;
}

.timer {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

.time-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.time-unit span {
    font-size: 2.5rem;
    font-weight: 600;
    color: #ffffff; /* A vibrant color for the timer */
    line-height: 1;
    background: #020617;
    padding: 5px 10px;
    border-radius: 5px;
    min-width: 60px;
}

.time-unit label {
    font-size: 0.8rem;
    text-transform: uppercase;
    margin-top: 5px;
    color: #020617;
}

/* Keyframe Animation */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Responsive Adjustments */
@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    .icon {
        font-size: 3rem;
    }

    .time-unit span {
        font-size: 1.8rem;
        min-width: 45px;
    }

    .timer {
        gap: 10px;
    }
}