/* =========================================
   1. GLOBAL THEME (The "Skin")
   ========================================= */
:root {
    --bg-color: #0f172a;      /* Deep Midnight */
    --card-bg: #1e293b;       /* Slate Card */
    --text-main: #f8fafc;     /* Off White */
    --text-dim: #94a3b8;      /* Greyed text */
    --accent: #38bdf8;        /* Fintech Blue */
    --accent-hover: #0ea5e9;
    --success: #22c55e;       /* M-Pesa Green */
}

* { box-sizing: border-box; }

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* =========================================
   2. REUSABLE COMPONENTS (Buttons, Cards, Images)
   ========================================= */

.card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid #334155;
    margin-bottom: 30px;
}

.profile-img {
    width: 100%;
    max-width: 180px;
    height: auto;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent);
    margin: 0 auto 20px auto;
    display: block;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}

.section-image {
    width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 20px 0;
}

button, .btn-download {
    display: block;
    background: var(--accent);
    color: #0f172a;
    border: none;
    padding: 18px 30px;
    font-size: 1.2rem;
    font-weight: 800;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s ease;
    text-transform: uppercase;
}

button:hover, .btn-download:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(56, 189, 248, 0.4);
}

/* =========================================
   3. THE PAYMENT SYSTEM (M-Pesa Section)
   ========================================= */

.payment-box {
    background: #111827;
    border: 2px solid var(--accent);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    margin: 40px 0;
}

.till-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--success);
    display: block;
    margin: 20px 0;
    letter-spacing: 5px;
}

input[type="text"] {
    width: 100%;
    padding: 15px;
    margin: 20px 0 10px 0;
    border-radius: 8px;
    border: 1px solid #334155;
    background: #0f172a;
    color: white;
    font-size: 1.1rem;
    text-align: center;
}

/* =========================================
   4. FOOTER & LINKS
   ========================================= */

footer {
    text-align: center;
    margin-top: 60px;
    padding-bottom: 40px;
    font-size: 0.85rem;
    color: var(--text-dim);
}

footer a {
    color: var(--text-dim);
    margin: 0 8px;
    text-decoration: none;
    display: inline-block;
}

footer a:hover { color: var(--accent); }

/* =========================================
   5. MOBILE FIXES (Media Queries)
   ========================================= */
@media (max-width: 600px) {
    .container { padding: 20px 15px; }
    h1 { font-size: 1.8rem; }
    h3 { font-size: 1.3rem; }
    .payment-box { padding: 25px 15px; }
    .till-number { font-size: 1.8rem; letter-spacing: 2px; }
    .profile-img { max-width: 140px; }
}