@import url("https://fonts.googleapis.com/css2?family=Poppins&display=swap");

* { 
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}

:root {
    --primary_bg: white;
    --color: #273746;
    --accent: #3498DB;
}

.dark {
    transition: background-color 0.5s ease;
    --primary_bg: #273746;
    --color: #fff;
    --accent: #3498DB;
}

html, body {
    height: 100%;
}

body {
    transition: background-color 0.5s ease;
    background: var(--primary_bg);
    color: var(--color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
}

header { 
    padding: 1rem 0;
    box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.5);
}

a{
    text-decoration: none;
    color: var(--color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}
a:hover {
    background: var(--accent);
    color: var(--primary_bg);
    transform: translateY(-2px);
}

header h2{
    padding-left: 0.6rem;
    font-size: 2rem;
    font-weight: 600;
    color: var(--color);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.navbar ul{ 
    display: flex;
    align-items: center;
    list-style: none;
    flex-wrap: wrap;
}

.navbar ul li {
    margin: 0 1rem;
}

.navbar ul li a{
    text-decoration: none;
    color: var(--color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.navbar ul li a:hover {
    background: var(--accent);
    color: var(--primary_bg);
    transform: translateY(-2px);
}

/* Username display sağa hizalamak için */
#usernameDisplay {
    margin: 0 1rem;
    margin-left: auto;
    font-weight: 600;
    color: var(--color);
    padding: 0.5rem 1rem;
}

/* Showcase */
.showcase { 
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    min-height: 80vh;
    align-items: center;
    gap: 2rem;
}

.account-settings {
    padding: 3rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.account-settings h2 {
    margin-bottom: 2rem;
    font-size: 2rem;
}

.form-box {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 400px;
    gap: 1rem;
}

.form-box label {
    font-weight: 500;
}

.form-box input {
    padding: 0.8rem;
    border-radius: 10px;
    border: 1px solid #ccc;
    font-size: 1rem;
}

.form-box button {
    padding: 0.8rem;
    background: var(--accent);
    color: white;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
}

.form-box button:hover {
    background: #217dbb;
}

#statusMsg {
    margin-top: 1rem;
    font-weight: 600;
    text-align: center;
    color: green;
}

.showcase img{
    display: block;
    object-fit: cover;
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.showcase h2{
    font-size: 6rem;
    font-weight: 800;
    color: var(--color);
    letter-spacing: 4px;
    line-height: 6rem;
}

.showcase p{
    font-size: 1.2rem;
    padding: 2rem 0;
    line-height: 2.5rem;
    color: var(--color);
}

.showcase button {
    display: inline-block;
    outline: none;
    border: none;
    cursor: pointer;
    padding: 0.6rem 2rem;
    border-radius: 50px;
    font-size: 0.9rem;
    background: var(--accent);
    color: var(--primary_bg);
    font-weight: 600;
    transition: 0.3s;
}
.showcase button:hover {
    opacity: 0.85;
    transform: translateY(-2px);
}

.below_content {
    display: flex;
    align-items: center;
}

.below_content i {
    background-color: var(--accent);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.6rem;
    margin: 0 0.5rem;
    color: var(--primary_bg);
    width: 40px;
    align-items: center;
    border-radius: 10%;
    transition: 0.3s;
}

.below_content i:hover {
    opacity: 0.8;
}

footer {
    padding: 1.5rem 0;
    text-align: center;
    background: var(--accent);
    color: var(--primary_bg);
}

main {
    flex: 1; /* içerik büyür, footer hep alta itilir */
}

footer a {
    color: var(--primary_bg);
    text-decoration: underline;
    transition: 0.3s;
}

footer a:hover {
    opacity: 0.8;
}




/* 📱 Responsive Tasarım */
@media (max-width: 1024px) {
    .showcase h2 {
        font-size: 4rem;
        line-height: 4.5rem;
    }

    .showcase {
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 0.8rem;
    }

    .navbar ul {
        flex-direction: column; /* alt alta diz */
        align-items: center;    /* ortalasın */
        gap: 0.5rem;
        padding: 0;
    }

    .navbar ul li {
        margin: 0.5rem 0;
    }

    /* dark mode icon'un da alt alta gelsin ve ortalansın */
    .below_content {
        justify-content: center;
        margin-top: 0.5rem;
    }

    .showcase {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 2rem 0;
    }

    .showcase h2 {
        font-size: 3rem;
        line-height: 3.5rem;
    }

    .showcase p {
        font-size: 1rem;
        line-height: 1.8rem;
    }

    .showcase img {
        margin-top: 1rem;
        max-height: 350px;
    }
}

@media (max-width: 480px) {
    header h2 {
        font-size: 1.5rem;
    }

    .navbar ul li {
        margin: 0 0.5rem;
    }

    .showcase h2 {
        font-size: 2rem;
        line-height: 2.5rem;
    }

    .showcase p {
        font-size: 0.9rem;
    }

    .showcase button {
        padding: 0.5rem 1.5rem;
        font-size: 0.8rem;
    }
}