/* -------------------------------------- */
    /* 0. NEW BISMILLAH HEADER & KEYFRAMES    */
    /* -------------------------------------- */
    .bismillah-header {
      text-align: center;
      padding: 10px;
      font-size: 1.5em; 
      font-weight: 700;
      color: #1e88e5; 
      background-color: #ffffff;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
      font-family: 'Times New Roman', serif; 
      position: sticky;
      top: 0;
      z-index: 200; 
    }
/* --- VARIABLES --- */
:root {
    --primary-color: #007bff;
    --secondary-color: #28a745;
    --dark-bg: #2c3e50;
    --light-bg: #ffffff;
    --danger-color: #dc3545;
    --accent-color: #ff9800;
    --shadow-deep: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* --- BASE STYLES (Desktop Default) --- */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f2f5;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: var(--dark-bg);
    color: white;
    padding: 10px 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.5em;
    margin: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

#profileIconButton {
    background: none;
    border: 2px solid white;
    color: white;
    font-size: 24px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: 1;
    transition: background-color 0.3s;
}

#currentBalanceDisplay {
    background-color: var(--accent-color);
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 1.1em;
    display: none;
}

.container {
    width: 90%;
    max-width: 800px;
    margin: 40px auto;
    background-color: var(--light-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-deep);
}

/* --- GUIDE ARTICLE STYLES --- */
#guideArticle {
    display: none;
    padding: 10px;
}
#guideArticle h2 {
    color: var(--primary-color);
    text-align: center;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
}
.call-to-action {
    text-align: center;
    margin-top: 20px;
    padding: 15px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
}

/* --- TRANSFER SECTION STYLING --- */
#transferSection {
    display: none;
}

.transfer-box {
    padding: 20px;
    border: 1px solid var(--primary-color);
    border-radius: 10px;
    background-color: #f0f8ff;
    margin-bottom: 30px;
}

/* Coin Buttons Container (Desktop: Flexible row) */
.coin-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    justify-content: center;
}
.coin-buttons button {
    background-color: #e0e0e0;
    color: #333;
    border: 1px solid #ccc;
    padding: 10px 15px;
    border-radius: 5px;
    font-size: 1em;
    cursor: pointer;
    flex-grow: 1;
    min-width: 100px;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    font-size: 1em;
    margin-top: 5px;
    margin-bottom: 15px;
    box-sizing: border-box;
    border: 1px solid #ccc;
}
.form-group label {
    font-weight: bold;
    display: block;
}

#recipientInfo {
    padding: 10px;
    border-radius: 5px;
    margin-top: 10px;
    margin-bottom: 20px;
    display: none; /* Managed by JS */
}


#sendButton {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    padding: 15px 20px;
    font-size: 1.2em;
    transition: background-color 0.3s;
}
#sendButton:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}


/* --- HISTORY STYLING --- */
.history-section {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 2px dashed #ccc;
}
.history-table {
    width: 100%;
    border-collapse: collapse;
}
.history-table th, .history-table td {
    padding: 10px;
    font-size: 0.9em;
    border-bottom: 1px solid #eee;
    text-align: left;
}
.history-table th {
    background-color: #f9f9f9;
}
.sent { color: var(--danger-color); font-weight: bold; }
.received { color: var(--secondary-color); font-weight: bold; }

/* --- AUTH MODAL STYLING (Remains standard) --- */
.modal { display: none; position: fixed; z-index: 100; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.7); backdrop-filter: blur(5px); justify-content: center; align-items: center; }
.modal-content { background-color: var(--light-bg); padding: 40px; border-radius: 12px; width: 90%; max-width: 400px; box-shadow: var(--shadow-deep); position: relative; }
.close-btn { color: #aaa; position: absolute; top: 15px; right: 25px; font-size: 30px; font-weight: bold; cursor: pointer; }
.auth-form input { border: 1px solid #ddd; border-radius: 6px; margin-bottom: 15px; padding: 10px; width: 100%; box-sizing: border-box; }
.auth-form button { background-color: var(--primary-color); color: white; padding: 10px; border: none; border-radius: 4px; width: 100%; cursor: pointer; }
.auth-toggle { margin-top: 20px; text-align: center; }
.auth-toggle a { font-weight: bold; color: var(--primary-color); cursor: pointer; }

/* ========================================= */
/* --- RESPONSIVE STYLES --- */
/* ========================================= */
@media (max-width: 768px) {
    .container { margin: 20px auto; padding: 20px; }
    header h1 { font-size: 1.4em; }
    .coin-buttons button { padding: 8px 10px; font-size: 0.9em; }
}

@media (max-width: 480px) {
    header { padding: 10px 15px; }
    header h1 { font-size: 1.2em; }
    #currentBalanceDisplay { font-size: 0.9em; padding: 6px 10px; }
    .container { padding: 15px; }
    .coin-buttons { gap: 5px; justify-content: space-between; }
    .coin-buttons button {
        width: 30%;
        flex-grow: 0;
        padding: 6px 4px;
        font-size: 0.75em;
        min-width: 0;
    }
    .history-table th, .history-table td { padding: 6px; font-size: 0.8em; }
    .history-table th:nth-child(4),
    .history-table td:nth-child(4) { display: none; }
}