/* ==========================================
   1. BASE & RESET STYLES
   ========================================== */
body {
    font-family: 'Arial', Helvetica, sans-serif;
    font-size: 15px;
    line-height: 1.62em;
    color: #333;
    overflow-x: hidden;
}

p { 
    margin: 0 0 20px 0; 
}

h1, .h1 { font-size: 22px; color: #000; }
h2, .h2 { font-size: 20px; color: #000; }
h3, .h3 { font-size: 16px; color: #000; }
h4, .h4 { font-size: 14px; color: #000; }

img { 
    max-width: 100%; 
}

a {
    color: #9c9c9c;
}

a:hover {
    color: #b1b1b1;
}

ol, ul {
    padding-left: 15px;
}

.container {
    max-width: 1296px;
}

/* Base Header Layout */
.header-wrapper-santanu {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 15px 20px;
    box-sizing: border-box;
}

.logo-name-section {
    flex: 1;
    text-align: left;
}
/*
.social-media-section {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-right: 15px;
}*/

.main-menu-section {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

/* Hamburger Toggle Button */
.navbar-santanu-toggle {
    display: block;
    margin: 0;
    background: transparent;
    border: 1px solid #333;
    padding: 9px 10px;
    border-radius: 4px;
    cursor: pointer;
}

.navbar-santanu-toggle .icon-bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: #333;
    border-radius: 1px;
}

.navbar-santanu-toggle .icon-bar + .icon-bar {
    margin-top: 4px;
}

/* ==========================================
   2. MOBILE NAVIGATION DRAWER (< 768px)
   ========================================== */
@media (max-width: 767px) {
    /* Hidden Drawer off-screen */
    #main-navigation-santanu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background-color: #ffffff;
        z-index: 9999;
        overflow-y: auto;
        padding: 20px;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.15);
        transition: left 0.3s ease-in-out;
    }

    /* Active Open State */
    #main-navigation-santanu.in,
    #main-navigation-santanu.show {
        left: 0 !important;
    }

    /* Transition Animation State */
    #main-navigation-santanu.collapsing {
        transition: left 0.3s ease-in-out;
    }

    /* Top-Right Close ("X") Button */
    .mobile-menu-close-btn {
        position: absolute;
        top: 15px;
        right: 15px;
        background: transparent;
        border: none;
        font-size: 28px;
        line-height: 1;
        color: #333;
        cursor: pointer;
        padding: 5px 10px;
        z-index: 10000;
        outline: none;
    }

    .mobile-menu-close-btn:hover,
    .mobile-menu-close-btn:focus {
        color: #000;
    }

    /* Navigation Links Styling */
    #main-navigation-santanu ul {
        list-style: none;
        padding: 0;
        margin: 50px 0 0 0;
    }

    #main-navigation-santanu li {
        display: block;
        margin-bottom: 15px;
    }

    #main-navigation-santanu a {
        display: block;
        padding: 10px 0;
        text-decoration: none;
        color: #333;
    }
}

/* ==========================================
   3. DESKTOP STYLES (768px and up)
   ========================================== */
@media (min-width: 768px) {
    .header-wrapper-santanu {
        justify-content: flex-start;
    }

    .logo-name-section {
        flex: 0 0 30%;
        max-width: 30%;
        text-align: left;
    }

    .social-media-section {
        flex: 0 0 20%;
        max-width: 20%;
        justify-content: flex-start;
        text-align: left;
        margin-right: 0;
    }

    .main-menu-section {
        flex: 0 0 50%;
        max-width: 50%;
        text-align: right;
        justify-content: flex-end;
    }

    /* Hide Mobile Controls */
    .navbar-santanu-toggle,
    .mobile-menu-close-btn {
        display: none !important;
    }

    /* Inline Desktop Menu Reset */
    #main-navigation-santanu.collapse,
    .collapse.navbar-collapse {
        position: static;
        width: auto;
        height: auto;
        box-shadow: none;
        display: block !important;
    }
}