/* USC Color Palette */
:root {
    --usc-red: #990000;
    --usc-gold: #FFC72C;
    --usc-dark-gray: #333333;
    --usc-light-gray: #f4f4f4;
    --white: #FFFFFF;
    --heading-font: 'Merriweather', serif; /* USC-inspired serif */
    --body-font: 'Arial', sans-serif; /* As requested for drone company */
}

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

body {
    font-family: var(--body-font);
    line-height: 1.6;
    color: var(--usc-dark-gray);
    background-color: var(--white);
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px 0;
}

/* USC Themed Backgrounds and Text */
.usc-bg-red {
    background-color: var(--usc-red);
    color: var(--white);
}
.usc-bg-gold {
    background-color: var(--usc-gold);
    color: var(--usc-dark-gray);
}
.usc-bg-dark {
    background-color: var(--usc-dark-gray);
    color: var(--white);
}
.usc-bg-light-gray {
    background-color: var(--usc-light-gray);
}
.usc-red-text {
    color: var(--usc-red);
}
.usc-gold-text {
    color: var(--usc-gold);
}

/* Header */
header {
    padding: 1rem 0;
    border-bottom: 5px solid var(--usc-gold);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header .logo h1 {
    font-family: var(--heading-font);
    font-size: 2rem;
    margin-bottom: 0.2rem;
    color: var(--white); /* White for contrast on red bg */
}
header .logo .tagline {
    font-size: 0.9rem;
    color: var(--usc-gold);
}

header nav ul {
    list-style: none;
    display: flex;
}

header nav ul li {
    margin-left: 20px;
}

header nav ul li a {
    color: var(--white);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

header nav ul li a:hover {
    color: var(--usc-gold);
}

/* Hero Section */
.hero {
    text-align: center;
    color: var(--white);
}

.hero-image-placeholder {
    background-color: #4a4a4a; /* Dark placeholder for image */
    background-image: url('drone.jpg'); /* Add a real image path here */
    background-size: cover;
    background-position: center;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.hero-image-placeholder::before { /* Overlay for text readability */
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
}

.hero-text {
    position: relative; /* To sit above the overlay */
    z-index: 1;
}

.hero .fight-on {
    font-family: var(--heading-font);
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.7);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease;
    font-family: var(--body-font);
    text-align: center;
}

.btn-gold {
    background-color: var(--usc-gold);
    color: var(--usc-red);
    border: 2px solid var(--usc-gold);
}
.btn-gold:hover {
    background-color: #e6b420; /* Slightly darker gold */
    color: var(--usc-red);
}

.btn-red {
    background-color: var(--usc-red);
    color: var(--white);
    border: 2px solid var(--usc-red);
}
.btn-red:hover {
    background-color: #7a0000; /* Slightly darker red */
    color: var(--white);
}


/* Content Sections */
.content-section {
    padding: 40px 0;
    text-align: center;
}
.content-section h2 {
    font-family: var(--heading-font);
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--usc-red);
}
.content-section p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 20px auto;
}

.usc-divider {
    height: 3px;
    width: 80px;
    background-color: var(--usc-gold);
    margin: 30px auto;
}


/* Service Cards */
.service-cards {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 30px;
}
.card {
    background: var(--white);
    border: 1px solid #ddd;
    border-left: 5px solid var(--usc-red);
    padding: 25px;
    width: calc(33.333% - 40px); /* Adjust for gap */
    min-width: 280px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.15);
}
.card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}
.card h3 {
    font-family: var(--heading-font);
    color: var(--usc-dark-gray);
    font-size: 1.5rem;
    margin-bottom: 10px;
}
.card p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* CTA Banner */
.cta-banner {
    padding: 40px 0;
    text-align: center;
}
.cta-banner h3 {
    font-family: var(--heading-font);
    font-size: 2.2rem;
    margin-bottom: 10px;
}
.cta-banner p {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--white);
    opacity: 0.9;
}


/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 20px auto 0 auto;
    text-align: left;
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: var(--body-font);
    font-size: 1rem;
}
.contact-form textarea {
    resize: vertical;
}
.contact-form button {
    width: 100%;
    font-size: 1.1rem;
}


/* Footer */
footer {
    text-align: center;
    padding: 30px 0;
    border-top: 5px solid var(--usc-gold);
}
footer p {
    margin-bottom: 5px;
    font-size: 0.9rem;
}
footer .usc-spirit {
    font-weight: bold;
    color: var(--usc-gold);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero .fight-on {
        font-size: 2.8rem;
    }
    .hero p {
        font-size: 1.2rem;
    }
    .content-section h2 {
        font-size: 2rem;
    }
    .card {
        width: calc(50% - 20px); /* Two cards per row */
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        text-align: center;
    }
    header nav {
        margin-top: 15px;
    }
    header nav ul li {
        margin: 0 10px;
    }
    .hero-image-placeholder {
        min-height: 50vh;
    }
    .hero .fight-on {
        font-size: 2.2rem;
    }
    .hero p {
        font-size: 1rem;
    }
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    .service-cards {
        flex-direction: column;
        align-items: center;
    }
    .card {
        width: 80%;
        margin-bottom: 20px;
    }
    .card:last-child {
        margin-bottom: 0;
    }
    .cta-banner h3 {
        font-size: 1.8rem;
    }
    .cta-banner p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    header .logo h1 {
        font-size: 1.8rem;
    }
    header .logo .tagline {
        font-size: 0.8rem;
    }
    header nav ul {
        flex-direction: column;
    }
    header nav ul li {
        margin: 5px 0;
    }
    .hero .fight-on {
        font-size: 2rem;
    }
    .content-section h2 {
        font-size: 1.8rem;
    }
    .card {
        width: 95%;
    }
    .contact-form button {
        font-size: 1rem;
    }
}