:root {
    --primary-green: #2ecc71;
    --deep-purple: #2c1a4d;
    --light-purple: #6c5ce7;
    --text-color: #ffffff;
    --bg-color: #121212;
}

body.light-mode {
    --bg-color: #f5f5f5;
    --text-color: #2c1a4d;
    --deep-purple: #e0d4ff;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: 0.3s;
}

.navbar {
    background: rgba(44, 26, 77, 0.9);
    backdrop-filter: blur(10px);
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 2000;
    border-bottom: 3px solid var(--primary-green);
}

.nav-links { display: flex; gap: 25px; list-style: none; }
.nav-links a { color: white; text-decoration: none; font-weight: bold; transition: 0.3s; }
.nav-links a:hover { color: var(--primary-green); }

.hero-full {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)),
        url('https://images.unsplash.com/photo-1636466497217-26a8cbeaf0aa?auto=format&fit=crop&w=1600&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.big-title { font-size: 6rem; color: var(--primary-green); margin: 0; text-transform: uppercase; letter-spacing: 10px; }

.container { 
    max-width: 1100px; 
    margin: 0 auto; 
    padding: 120px 20px 40px 20px;
    min-height: calc(100vh - 70px - 63px);
    box-sizing: border-box;
}

footer {
    position: relative;
    left: 0;
    bottom: 0;
    width: 100%;
    box-sizing: border-box;
    height: 100px;
     background: var(--deep-purple);
        text-align: center;
        padding: 20px;
        border-top: 3px solid var(--primary-green);
}
.content-box {
    background: rgba(108, 92, 231, 0.1);
    padding: 40px;
    border-radius: 20px;
    border-left: 8px solid var(--primary-green);
    margin-bottom: 50px;
}

.branches-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

h1, h2 { color: var(--primary-green); }
.intro-big { font-size: 4.5rem; text-align: center; margin: 100px 0; font-weight: 900; }

button {
    background: var(--primary-green);
    color: var(--deep-purple);
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}
button:hover { transform: scale(1.05); background: var(--light-purple); color: white; }

input[type="number"] {
    padding: 10px;
    border-radius: 5px;
    border: 1px solid var(--light-purple);
    background: #222;
    color: white;
    width: 150px;
}

.deep-dive {
    background: rgba(46, 204, 113, 0.1);
    border: 1px dashed var(--primary-green);
    padding: 15px;
    margin: 20px 0;
    border-radius: 10px;
}

.deep-dive h4 {
    margin-top: 0;
    color: var(--primary-green);
    font-size: 1rem;
    text-transform: uppercase;
}

.deep-dive ul {
    margin: 0;
    padding-left: 20px;
}

.deep-dive a {
    color: var(--light-purple);
    text-decoration: none;
    font-weight: bold;
}

.deep-dive a:hover {
    text-decoration: underline;
}

.hero-small {
    padding: 120px 20px 60px 20px; 
    background: linear-gradient(rgba(44, 26, 77, 0.8), rgba(18, 18, 18, 1)), 
                url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?auto=format&fit=crop&w=1600&q=80');
    background-size: cover;
    background-position: center;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.content-box {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: default;
}

.content-box:hover {
    transform: translateY(-10px); 
    box-shadow: 0 10px 20px rgba(46, 204, 113, 0.2);
    border-left-color: var(--light-purple); 
}

.nav-links li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 8px 15px;
    border-radius: 5px; 
    transition: all 0.3s ease;
}

.nav-links li a:hover {
    background-color: var(--primary-green); 
    color: var(--deep-purple); 
}

.content-box {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.content-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(46, 204, 113, 0.3);
}