/* ===============================
   GLOBAL STYLES
================================ */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    color: #222;
    scroll-behavior: smooth;
    transition: background 0.3s, color 0.3s;
    font-size: 18px;
    line-height: 1.7;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: min(90%, 1300px);
    margin-inline: auto;
}

/* ===============================
   DARK MODE
================================ */
body.dark {
    background: #0e0e0e;
    color: #e7e7e7;
}

body.dark nav,
body.dark footer {
    background: #071f18;
}

body.dark .card {
    background: #1a1a1a;
    color: #fff;
}

.dark-toggle {
    font-size: 1.2rem;
    padding: 8px 12px;
    background: #14a37f;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    color: white;
}

/* ===============================
   NAVBAR
================================ */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: #0a4d3c;
    padding: 15px 25px;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 25px;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    font-weight: 600;
    border-radius: 6px;
}

nav a.active {
    background: #14a37f;
}

/* ===============================
   HERO SECTION
================================ */
#hero {
    height: 60vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

/* Animated background */
.animated-bg {
    background: linear-gradient(135deg, #0a4d3c, #14a37f, #0a4d3c);
    background-size: 300% 300%;
    animation: gradientFlow 15s ease infinite;
}

@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ===============================
   SECTION DEFAULT DESIGN
================================ */
section {
    padding: 90px 0;
    max-width: 1100px;
    margin: auto;
    text-align: center;
}

section h2 {
    font-size: 2.4rem;
    margin-bottom: 40px;
    color: #0a4d3c;
    letter-spacing: 1px;
}

body.dark section h2 {
    color: #14a37f;
}

.divider {
    width: 80%;
    height: 2px;
    background: #14a37f;
    opacity: 0.4;
    margin: 60px auto;
    border-radius: 3px;
}

/* ===============================
   GRID LAYOUT
================================ */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    align-items: stretch;
}

/* ===============================
   CARD DESIGN
================================ */
.card {
    background: white;
    padding: 32px;
    border-radius: 18px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.7s ease;
    text-align: left;
}

/* Visible on scroll */
.card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Hover effect */
.card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 14px 28px rgba(0,0,0,0.18);
}

.card .icon {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0;
    transform: translateY(10px);
    transition: 0.6s;
}

.card.visible .icon {
    opacity: 1;
    transform: translateY(0);
}

/* List spacing */
.card ul {
    padding-left: 20px;
}

.card li {
    margin-bottom: 12px;
    line-height: 1.6;
}

/* ===============================
   FOOTER
================================ */
footer {
    background: #0a4d3c;
    color: white;
    padding: 25px;
    text-align: center;
}

.socials a {
    margin: 0 10px;
    font-size: 1.6rem;
    color: white;
}

/* ===============================
   MOBILE RESPONSIVENESS
================================ */

/* Tablet */
@media (max-width: 900px) {
    nav .nav-links {
        gap: 15px;
    }

    nav a {
        padding: 8px 10px;
        font-size: 0.9rem;
    }

    #hero {
        height: auto;
        padding: 60px 20px;
    }
}

/* Mobile Navigation + Layout */
@media (max-width: 700px) {

    nav {
        flex-direction: column;
        padding: 12px;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 10px;
    }

    nav a {
        padding: 8px 14px;
    }

    section {
        padding: 60px 20px;
        text-align: left;
    }

    section h2 {
        font-size: 2rem;
        text-align: center;
    }

    .card {
        padding: 26px;
        font-size: 1rem;
    }

    .grid {
        gap: 25px;
    }
}

/* Smaller phones */
@media (max-width: 480px) {
    nav a {
        width: 100%;
        text-align: center;
    }

    section h2 {
        font-size: 1.8rem;
    }

    .card {
        padding: 22px;
    }
}