/* =====================================================================
   এমএমআর আইটি কম্পিউটার ট্রেনিং সেন্টার — মূল স্টাইলশীট
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&family=Noto+Sans+Bengali:wght@400;500;600&display=swap');

:root {
    /* কালার প্যালেট */
    --navy-deep: #0F1B3C;
    --navy-light: #1B2C5C;
    --amber: #F5A623;
    --amber-dark: #D88C0F;
    --cream: #FAF9F6;
    --white: #FFFFFF;
    --gray-700: #44495a;
    --gray-500: #6B7280;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --success: #1B8A5A;
    --error: #D64545;
    --warning: #D88C0F;

    /* টাইপোগ্রাফি */
    --font-heading: 'Hind Siliguri', sans-serif;
    --font-body: 'Noto Sans Bengali', 'Hind Siliguri', sans-serif;

    /* শেডো */
    --shadow-sm: 0 1px 3px rgba(15, 27, 60, 0.08);
    --shadow-md: 0 4px 16px rgba(15, 27, 60, 0.10);
    --shadow-lg: 0 12px 32px rgba(15, 27, 60, 0.16);

    --radius: 10px;
    --radius-sm: 6px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--cream);
    color: var(--gray-700);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--navy-deep);
    font-weight: 700;
    line-height: 1.3;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------------------------------------------------------------
   ফোকাস স্টেট (অ্যাক্সেসিবিলিটি)
--------------------------------------------------------------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
    outline: 3px solid var(--amber);
    outline-offset: 2px;
}

/* ---------------------------------------------------------------
   বাটন
--------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    border: 2px solid transparent;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
    background: var(--amber);
    color: var(--navy-deep);
    box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--amber-dark); box-shadow: var(--shadow-md); }

.btn-outline {
    background: transparent;
    border-color: var(--white);
    color: var(--white);
}
.btn-outline:hover { background: rgba(255,255,255,0.1); }

.btn-navy {
    background: var(--navy-deep);
    color: var(--white);
}
.btn-navy:hover { background: var(--navy-light); box-shadow: var(--shadow-md); }

.btn-block { width: 100%; }
.btn-sm { padding: 8px 16px; font-size: 13px; }

.btn-danger { background: var(--error); color: #fff; }
.btn-success { background: var(--success); color: #fff; }

/* ---------------------------------------------------------------
   হেডার / নেভিগেশন
--------------------------------------------------------------- */
.site-header {
    background: var(--navy-deep);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
}
.header-top {
    display: flex;
    align-items: center;
    gap: 12px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--white);
}
.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--amber), var(--amber-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--navy-deep);
    font-size: 18px;
    flex-shrink: 0;
}
.brand-text .brand-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 17px;
    color: var(--white);
    line-height: 1.2;
}
.brand-text .brand-sub {
    font-size: 12px;
    color: var(--amber);
    font-weight: 500;
}
.brand-logo-img {
    height: 44px;
    max-width: 200px;
    object-fit: contain;
}

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
    color: rgba(255,255,255,0.85);
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 15px;
    transition: background 0.15s ease, color 0.15s ease;
}
.main-nav a:hover, .main-nav a.active {
    background: rgba(255,255,255,0.08);
    color: var(--amber);
}

/* সাবমেনু (ড্রপডাউন) */
.main-nav .nav-item { position: relative; }
.main-nav .nav-item > .nav-parent-link { display: inline-flex; align-items: center; gap: 4px; }
.main-nav .nav-item .caret { font-size: 10px; transition: transform 0.15s ease; }
.main-nav .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--navy-deep);
    min-width: 210px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    padding: 6px;
    z-index: 60;
    margin-top: 0;
}
/* প্যারেন্ট লিংক ও সাবমেনুর মাঝে অদৃশ্য একটা সেতু — যাতে মাউস সরানোর সময় হোভার ভেঙে সাবমেনু বন্ধ না হয়ে যায় */
.main-nav .submenu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
}
.main-nav .submenu a {
    display: block;
    padding: 10px 14px;
    border-radius: 6px;
    white-space: nowrap;
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    font-size: 14.5px;
}
.main-nav .submenu a:hover { background: rgba(255,255,255,0.08); color: var(--amber); }
@media (min-width: 769px) {
    .main-nav .nav-item:hover .submenu { display: block; }
    .main-nav .nav-item:hover .caret { transform: rotate(180deg); }
}

.header-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 26px;
    order: 2;
}

.user-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--white);
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,0.08);
    font-size: 14px;
    font-weight: 500;
}
.user-chip .avatar-mini {
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--amber); color: var(--navy-deep);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 13px;
}

/* ---------------------------------------------------------------
   হিরো সেকশন
--------------------------------------------------------------- */
.hero {
    background: var(--navy-deep);
    background-image:
        radial-gradient(circle at 85% 20%, rgba(245,166,35,0.18), transparent 45%),
        radial-gradient(circle at 10% 90%, rgba(245,166,35,0.10), transparent 40%);
    color: var(--white);
    padding: 80px 20px 90px;
    position: relative;
    overflow: hidden;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
    max-width: 1180px;
    margin: 0 auto;
}
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245,166,35,0.12);
    color: var(--amber);
    padding: 7px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(245,166,35,0.3);
}
.hero h1 {
    color: var(--white);
    font-size: 42px;
    line-height: 1.35;
    margin-bottom: 18px;
}
.hero h1 span { color: var(--amber); }
.hero p {
    color: rgba(255,255,255,0.75);
    font-size: 17px;
    margin-bottom: 30px;
    max-width: 540px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-stats { display: flex; gap: 36px; flex-wrap: wrap; }
.hero-stats .stat-num {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    color: var(--amber);
}
.hero-stats .stat-label { font-size: 13px; color: rgba(255,255,255,0.65); }

.hero-visual {
    position: relative;
    background: var(--navy-light);
    border-radius: 16px;
    padding: 28px;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: var(--shadow-lg);
}
.code-window {
    background: #0A1228;
    border-radius: 10px;
    overflow: hidden;
    font-family: 'Courier New', monospace;
}
.code-window-bar {
    display: flex;
    gap: 6px;
    padding: 12px 14px;
    background: rgba(255,255,255,0.04);
}
.code-dot { width: 10px; height: 10px; border-radius: 50%; }
.code-window-body {
    padding: 18px;
    font-size: 13px;
    color: #9fb3d9;
    line-height: 1.9;
}
.code-window-body .c-key { color: var(--amber); }
.code-window-body .c-str { color: #8fd19e; }
.code-window-body .c-com { color: #5b6a8f; }

/* ---------------------------------------------------------------
   সেকশন কমন স্টাইল
--------------------------------------------------------------- */
.section { padding: 70px 0; }
.section-alt { background: var(--white); }
.section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 46px;
}
.section-eyebrow {
    display: inline-block;
    color: var(--amber-dark);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}
.section-head h2 { font-size: 30px; margin-bottom: 12px; }
.section-head p { color: var(--gray-500); font-size: 15.5px; }

/* ---------------------------------------------------------------
   কোর্স কার্ড
--------------------------------------------------------------- */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 26px;
}
.course-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
}
.course-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.course-thumb {
    height: 165px;
    background: linear-gradient(135deg, var(--navy-deep), var(--navy-light));
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.course-thumb img { width: 100%; height: 100%; object-fit: cover; }
.course-thumb-icon { font-size: 34px; color: rgba(255,255,255,0.85); font-family: var(--font-heading); font-weight: 700; }
.course-level-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(255,255,255,0.92);
    color: var(--navy-deep);
    font-size: 11px;
    font-weight: 700;
    padding: 5px 11px;
    border-radius: 999px;
}
.course-type-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--amber);
    color: var(--navy-deep);
    font-size: 11px;
    font-weight: 700;
    padding: 5px 11px;
    border-radius: 999px;
}
.course-body { padding: 20px; flex-grow: 1; display: flex; flex-direction: column; }
.course-category {
    color: var(--amber-dark);
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.course-title {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--navy-deep);
}
.course-desc {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 16px;
    flex-grow: 1;
}
.course-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px dashed var(--gray-200);
}
.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.course-price { font-family: var(--font-heading); font-weight: 700; color: var(--navy-deep); font-size: 17px; }
.course-price .old-price {
    text-decoration: line-through;
    color: var(--gray-500);
    font-weight: 400;
    font-size: 13px;
    margin-right: 6px;
}

/* ---------------------------------------------------------------
   ফিচার কার্ড (কেন আমরা)
--------------------------------------------------------------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 26px;
}
.feature-card {
    background: var(--white);
    padding: 28px 24px;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    transition: border-color 0.2s ease;
}
.feature-card:hover { border-color: var(--amber); }
.feature-icon {
    width: 50px; height: 50px;
    background: rgba(245,166,35,0.12);
    color: var(--amber-dark);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
    font-weight: 700;
}
.feature-card h3 { font-size: 16.5px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--gray-500); }

/* ---------------------------------------------------------------
   স্টেপ / প্রসেস
--------------------------------------------------------------- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    position: relative;
}
.step-card { text-align: center; padding: 10px; }
.step-num {
    width: 46px; height: 46px;
    background: var(--navy-deep);
    color: var(--amber);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-heading); font-weight: 700; font-size: 18px;
    margin: 0 auto 14px;
}
.step-card h3 { font-size: 16px; margin-bottom: 6px; }
.step-card p { font-size: 13.5px; color: var(--gray-500); }

/* ---------------------------------------------------------------
   ফর্ম
--------------------------------------------------------------- */
.form-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 36px;
    max-width: 460px;
    margin: 0 auto;
    border: 1px solid var(--gray-200);
}
.form-card-wide { max-width: 720px; }
.form-card h1, .form-card h2 { font-size: 24px; margin-bottom: 8px; text-align: center; }
.form-sub { text-align: center; color: var(--gray-500); font-size: 14px; margin-bottom: 26px; }

.form-group { margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--navy-deep);
    margin-bottom: 7px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 14.5px;
    background: var(--cream);
    transition: border-color 0.15s ease;
    color: var(--gray-700);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--amber);
    background: var(--white);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-hint { font-size: 12.5px; color: var(--gray-500); margin-top: 6px; }
.form-footer-link { text-align: center; margin-top: 20px; font-size: 14px; color: var(--gray-500); }
.form-footer-link a { color: var(--amber-dark); font-weight: 600; }

.password-toggle-wrap { position: relative; }
.password-toggle-wrap input { padding-left: 14px; padding-right: 44px; }
.password-toggle-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-500);
    font-size: 13px;
    font-weight: 600;
}

/* ---------------------------------------------------------------
   অ্যালার্ট / ফ্ল্যাশ মেসেজ
--------------------------------------------------------------- */
.alert {
    padding: 13px 18px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-bottom: 20px;
    border-left: 4px solid;
    font-weight: 500;
}
.alert-success { background: #EAF7F0; color: #156945; border-color: var(--success); }
.alert-error   { background: #FCEAEA; color: #A52E2E; border-color: var(--error); }
.alert-warning { background: #FFF6E8; color: #8A5A0A; border-color: var(--warning); }
.alert-info    { background: #EAF1FC; color: #1B4E8A; border-color: #2D6FCC; }

/* ---------------------------------------------------------------
   ব্যাজ / স্ট্যাটাস ট্যাগ
--------------------------------------------------------------- */
.badge { display: inline-block; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge-success { background: #EAF7F0; color: var(--success); }
.badge-pending { background: #FFF6E8; color: var(--warning); }
.badge-rejected { background: #FCEAEA; color: var(--error); }
.badge-active { background: #EAF7F0; color: var(--success); }
.badge-inactive { background: var(--gray-100); color: var(--gray-500); }

/* ---------------------------------------------------------------
   ফুটার
--------------------------------------------------------------- */
.site-footer {
    background: var(--navy-deep);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
    margin-top: 60px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-grid h4 { color: var(--white); font-size: 16px; margin-bottom: 18px; }
.footer-grid p { font-size: 14px; line-height: 1.8; }
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid ul li a { font-size: 14px; transition: color 0.15s ease; }
.footer-grid ul li a:hover { color: var(--amber); }
.footer-bottom {
    text-align: center;
    padding: 22px 0;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}
.footer-social { display: flex; gap: 10px; margin-top: 16px; }
.footer-social a {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
    color: var(--white);
}
.footer-social a:hover { background: var(--amber); color: var(--navy-deep); }

/* ---------------------------------------------------------------
   পেজ হেডার (ইনার পেজ)
--------------------------------------------------------------- */
.page-banner {
    background: var(--navy-deep);
    background-image: radial-gradient(circle at 80% 30%, rgba(245,166,35,0.15), transparent 45%);
    padding: 46px 20px;
    text-align: center;
}
.page-banner h1 { color: var(--white); font-size: 28px; margin-bottom: 8px; }
.page-banner .breadcrumb { color: rgba(255,255,255,0.6); font-size: 14px; }
.page-banner .breadcrumb a { color: var(--amber); }

/* ---------------------------------------------------------------
   কোর্স ডিটেইল পেজ
--------------------------------------------------------------- */
.course-detail-grid {
    display: grid;
    grid-template-columns: 1.7fr 1fr;
    gap: 36px;
    align-items: start;
}
.detail-main {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    border: 1px solid var(--gray-200);
}
.detail-main h2 { font-size: 20px; margin: 24px 0 14px; }
.detail-main h2:first-child { margin-top: 0; }
.module-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 14.5px;
}
.module-list li:last-child { border-bottom: none; }
.module-num {
    width: 26px; height: 26px;
    border-radius: 50%;
    background: rgba(245,166,35,0.15);
    color: var(--amber-dark);
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 700; flex-shrink: 0;
}

.sidebar-card {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    position: sticky;
    top: 90px;
}
.sidebar-card-thumb {
    height: 170px;
    background: linear-gradient(135deg, var(--navy-deep), var(--navy-light));
    position: relative;
}
.sidebar-card-thumb img { width: 100%; height: 100%; object-fit: cover; }

/* প্রোমো ভিডিও প্লে বাটন ও মডাল */
.promo-play-btn {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 56px; height: 56px;
    border-radius: 50%;
    background: rgba(15,27,60,0.75);
    color: var(--amber);
    border: 2px solid var(--amber);
    font-size: 20px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}
.promo-play-btn:hover { background: var(--amber); color: var(--navy-deep); transform: translate(-50%, -50%) scale(1.08); }

.promo-video-modal {
    display: none;
    position: fixed; inset: 0;
    background: rgba(15,27,60,0.85);
    z-index: 999;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.promo-video-modal.open { display: flex; }
.promo-video-modal-inner {
    width: 100%;
    max-width: 860px;
    position: relative;
}
.promo-video-frame {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
}
.promo-video-frame iframe {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%;
    border: 0;
}
.promo-video-close {
    position: absolute;
    top: -44px; right: 0;
    background: var(--amber);
    color: var(--navy-deep);
    border: none;
    width: 34px; height: 34px;
    border-radius: 50%;
    font-size: 16px;
    cursor: pointer;
}

/* আজই ভর্তি হোন CTA বক্স */
.enroll-cta-box {
    margin-top: 30px;
    padding: 26px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--navy-deep), var(--navy-light));
    text-align: center;
}
.enroll-cta-box h3 { color: var(--amber); font-size: 20px; margin-bottom: 8px; }
.enroll-cta-box p { color: rgba(255,255,255,0.85); font-size: 14px; margin-bottom: 18px; }
.sidebar-card-body { padding: 24px; }
.price-row { display: flex; align-items: baseline; gap: 10px; margin-bottom: 4px; }
.price-row .current { font-size: 26px; font-weight: 700; color: var(--navy-deep); font-family: var(--font-heading); }
.price-row .old { font-size: 15px; color: var(--gray-500); text-decoration: line-through; }
.save-tag { color: var(--success); font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.info-list li {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-top: 1px solid var(--gray-100);
    font-size: 13.5px;
}
.info-list li span:first-child { color: var(--gray-500); }
.info-list li span:last-child { font-weight: 600; color: var(--navy-deep); }

/* ---------------------------------------------------------------
   প্রোফাইল / ড্যাশবোর্ড
--------------------------------------------------------------- */
.dashboard-shell {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 28px;
    align-items: start;
}
.dash-sidebar {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    padding: 24px;
    position: sticky;
    top: 90px;
}
.dash-profile { text-align: center; padding-bottom: 20px; border-bottom: 1px solid var(--gray-100); margin-bottom: 16px; }
.dash-avatar {
    width: 76px; height: 76px;
    border-radius: 50%;
    background: var(--navy-deep);
    color: var(--amber);
    display: flex; align-items: center; justify-content: center;
    font-size: 26px; font-weight: 700;
    margin: 0 auto 12px;
    font-family: var(--font-heading);
    overflow: hidden;
}
.dash-avatar img { width: 100%; height: 100%; object-fit: cover; }
.dash-profile h3 { font-size: 15.5px; }
.dash-profile p { font-size: 12.5px; color: var(--gray-500); }
.dash-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 4px;
}
.dash-nav a:hover { background: var(--gray-100); }
.dash-nav a.active { background: var(--navy-deep); color: var(--white); }
.dash-nav a.text-danger { color: var(--error); }

.dash-content {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    padding: 30px;
}
.dash-content h2 { font-size: 21px; margin-bottom: 22px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 18px; margin-bottom: 30px; }
.stat-box {
    background: var(--cream);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 20px;
}
.stat-box .num { font-family: var(--font-heading); font-size: 26px; font-weight: 700; color: var(--navy-deep); }
.stat-box .label { font-size: 13px; color: var(--gray-500); margin-top: 4px; }

.enroll-row {
    display: flex; align-items: center; gap: 16px;
    padding: 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}
.enroll-row img { width: 60px; height: 60px; border-radius: 8px; object-fit: cover; background: var(--navy-deep); flex-shrink: 0; }
.enroll-row .info { flex-grow: 1; }
.enroll-row .info h4 { font-size: 15px; margin-bottom: 4px; }
.enroll-row .info p { font-size: 12.5px; color: var(--gray-500); }

/* ---------------------------------------------------------------
   টেবিল (অ্যাডমিন)
--------------------------------------------------------------- */
.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data-table th {
    background: var(--gray-100);
    text-align: right;
    padding: 13px 14px;
    font-weight: 700;
    color: var(--navy-deep);
    white-space: nowrap;
}
table.data-table th:first-child, table.data-table td:first-child { text-align: right; }
table.data-table td {
    padding: 13px 14px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}
table.data-table tr:hover { background: var(--cream); }

/* ---------------------------------------------------------------
   পেমেন্ট ইনস্ট্রাকশন বক্স
--------------------------------------------------------------- */
.payment-box {
    background: var(--cream);
    border: 1.5px dashed var(--amber);
    border-radius: var(--radius);
    padding: 22px;
    margin-bottom: 22px;
}
.payment-box h3 { font-size: 15px; margin-bottom: 12px; }
.payment-method-row { display: flex; gap: 18px; margin-bottom: 6px; flex-wrap: wrap; }
.payment-method-chip {
    display: flex; align-items: center; gap: 8px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: 9px 16px;
    border-radius: 999px;
    font-size: 13.5px;
    font-weight: 600;
}
.payment-method-chip strong { color: var(--navy-deep); }

/* ---------------------------------------------------------------
   ইউটিলিটি
--------------------------------------------------------------- */
.text-center { text-align: center; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.empty-state { text-align: center; padding: 50px 20px; color: var(--gray-500); }
.empty-state .icon { font-size: 40px; margin-bottom: 14px; opacity: 0.5; }

/* ---------------------------------------------------------------
   পেজিনেশন
--------------------------------------------------------------- */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 36px; }
.pagination a, .pagination span {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-200);
    font-size: 14px; font-weight: 600;
    color: var(--gray-700);
}
.pagination a:hover { border-color: var(--amber); color: var(--amber-dark); }
.pagination .active { background: var(--navy-deep); color: var(--white); border-color: var(--navy-deep); }

/* ---------------------------------------------------------------
   রেসপনসিভ
--------------------------------------------------------------- */
@media (max-width: 980px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual { order: -1; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .course-detail-grid { grid-template-columns: 1fr; }
    .dashboard-shell { grid-template-columns: 1fr; }
    .dash-sidebar { position: static; }
}

@media (max-width: 768px) {
    .header-inner { flex-wrap: wrap; row-gap: 12px; padding: 12px 16px; }
    .header-top { flex-basis: 100%; justify-content: space-between; }
    .brand-logo-img { height: 36px; max-width: 150px; }
    .brand-mark { width: 38px; height: 38px; font-size: 15px; }
    .brand-text .brand-name { font-size: 15px; }
    .brand-text .brand-sub { font-size: 10.5px; }
    .nav-toggle { display: block; }
    .header-actions {
        flex-basis: 100%;
        justify-content: center;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        row-gap: 10px;
    }
    .main-nav {
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: var(--navy-deep);
        flex-direction: column;
        align-items: stretch;
        padding: 10px 16px 16px;
        gap: 0;
        box-shadow: var(--shadow-md);
        max-height: 80vh;
        overflow-y: auto;
        transform: translateY(-150%);
        transition: transform 0.25s ease;
        z-index: 99;
    }
    .main-nav.open { transform: translateY(0); }
    .main-nav a { padding: 13px 14px; border-bottom: 1px solid rgba(255,255,255,0.06); }
    .main-nav .nav-item { border-bottom: 1px solid rgba(255,255,255,0.06); }
    .main-nav .nav-item > .nav-parent-link { border-bottom: none; }
    .main-nav .submenu {
        display: none;
        position: static;
        box-shadow: none;
        background: rgba(0,0,0,0.15);
        margin: 0 0 6px;
        padding-left: 10px;
    }
    .main-nav .nav-item.submenu-open .submenu { display: block; }
    .main-nav .nav-item.submenu-open > .nav-parent-link .caret { transform: rotate(180deg); }
    .nav-toggle { display: block; }
    .hero h1 { font-size: 30px; }
    .hero-stats { gap: 22px; }
    .footer-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .form-card { padding: 26px 20px; }
    .section { padding: 50px 0; }
}

/* ---------------------------------------------------------------
   হোয়াটসঅ্যাপ চ্যাট উইজেট (ফ্লোটিং বাটন + ইন-পেজ মেসেজ বক্স)
   --------------------------------------------------------------- */
.whatsapp-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 500;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 14px;
}
.whatsapp-float {
    width: 58px;
    height: 58px;
    background: #25D366;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.25);
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.whatsapp-float:hover { transform: scale(1.08); box-shadow: 0 6px 22px rgba(0,0,0,0.3); }
.whatsapp-float::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: #25D366;
    opacity: 0.55;
    animation: whatsapp-pulse 2s infinite;
    z-index: -1;
}
@keyframes whatsapp-pulse {
    0%   { transform: scale(1); opacity: 0.55; }
    70%  { transform: scale(1.7); opacity: 0; }
    100% { transform: scale(1.7); opacity: 0; }
}
.whatsapp-float .wa-icon-close { display: none; }
.whatsapp-widget.open .whatsapp-float .wa-icon-chat { display: none; }
.whatsapp-widget.open .whatsapp-float .wa-icon-close { display: block; }
.whatsapp-widget.open .whatsapp-float::before { animation: none; opacity: 0; }

.whatsapp-chat-box {
    display: none;
    flex-direction: column;
    width: 320px;
    max-width: calc(100vw - 32px);
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.22);
    overflow: hidden;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}
.whatsapp-widget.open .whatsapp-chat-box {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}
.whatsapp-chat-header {
    background: #075E54;
    color: #fff;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.whatsapp-chat-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--amber);
    color: var(--navy-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}
.whatsapp-chat-title { flex-grow: 1; display: flex; flex-direction: column; line-height: 1.35; }
.whatsapp-chat-title strong { font-size: 14.5px; }
.whatsapp-chat-title span { font-size: 12px; color: rgba(255,255,255,0.75); }
.whatsapp-chat-close {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.85);
    font-size: 16px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}
.whatsapp-chat-close:hover { color: #fff; }
.whatsapp-chat-body {
    background: #E5DDD5;
    padding: 16px;
    min-height: 90px;
}
.whatsapp-chat-bubble {
    background: #fff;
    border-radius: 10px;
    border-top-left-radius: 2px;
    padding: 10px 12px;
    font-size: 13.5px;
    line-height: 1.55;
    color: #303030;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    max-width: 92%;
}
.whatsapp-chat-input {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 10px;
    background: #F0F0F0;
    border-top: 1px solid #ddd;
}
.whatsapp-chat-input textarea {
    flex-grow: 1;
    border: 1px solid var(--gray-200);
    border-radius: 18px;
    padding: 9px 14px;
    font-size: 13.5px;
    font-family: inherit;
    resize: none;
    max-height: 80px;
    background: #fff;
}
.whatsapp-chat-input textarea:focus { outline: none; border-color: #25D366; }
.whatsapp-chat-input button {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #25D366;
    border: none;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s ease;
}
.whatsapp-chat-input button:hover { background: #1EBE5A; }
@media (max-width: 768px) {
    .whatsapp-widget { bottom: 16px; right: 16px; }
    .whatsapp-float { width: 52px; height: 52px; }
}

/* ---------------------------------------------------------------
   নেভিগেশনে সার্টিফিকেট ভেরিফিকেশন বাটন (চলমান গ্রেডিয়েন্ট + পালস গ্লো)
   --------------------------------------------------------------- */
.nav-verify-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    white-space: nowrap;
    background: linear-gradient(135deg, #E91E8C, #9B2FD6 50%, #2E7CE6);
    background-size: 220% 220%;
    animation: navVerifyGradient 4s ease infinite, navVerifyPulse 2.2s ease-in-out infinite;
    transition: transform 0.2s ease;
}
.nav-verify-btn:hover {
    transform: translateY(-1px) scale(1.03);
    color: #fff;
}
@keyframes navVerifyGradient {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes navVerifyPulse {
    0%   { box-shadow: 0 0 0 0 rgba(155, 47, 214, 0.45); }
    70%  { box-shadow: 0 0 0 7px rgba(155, 47, 214, 0); }
    100% { box-shadow: 0 0 0 0 rgba(155, 47, 214, 0); }
}
@media (max-width: 768px) {
    .nav-verify-btn { font-size: 11.5px; padding: 6px 11px; }
}
@media (max-width: 400px) {
    .nav-verify-btn { font-size: 10.5px; padding: 5px 10px; gap: 3px; }
    .header-actions { gap: 6px; }
    .header-actions .btn { font-size: 12px; padding: 7px 12px; }
}