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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background: #f5f7fa;
    color: #333;
}

/* Back Button */
.back-btn {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 2;
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    background: rgba(193, 193, 193, 0.5);
    padding: 8px 14px;
    border-radius: 6px;
    transition: 0.3s ease;
}

.back-btn:hover {
    color: #000000;
    background: rgba(255, 255, 255, 0.8);
}

/* Container */
.container {
    width: 90%;
    max-width: 1000px;
    margin: auto;
}

/* Hero (overlay only, image comes from HTML) */
.hero {
    position: relative;
    color: #fff;
    padding: 70px 0;
    text-align: center;
    background-size: cover;
    background-position: center;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.7);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.tagline {
    margin-top: 10px;
    font-size: 18px;
    opacity: 0.9;
}

/* Sections */
.section {
    background: #fff;
    margin: 30px 0;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.section h2 {
    margin-bottom: 15px;
}

/* Preview */
.preview {
    width: 50%;
    border-radius: 8px;
}

/* Features */
.features {
    list-style: disc;
    padding-left: 20px;
}

.features li {
    margin-bottom: 8px;
}

/* Tech Stack */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-stack span {
    background: #f1f1f1;
    color: #333;
    padding: 8px 14px;
    border-radius: 10px;
    font-size: 15px;
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    color: #666;
}