:root {
    --bg-color: #090909;
    --text-color: #f0f0f0;
    --accent-color: #23b5b5;
    --card-bg-color: transparent;
    --border-color: #343434;
    --date-color: #999;
    --link-hover-color: #ffffff;
    --font-family: "Nunito", sans-serif;
}

/* Genel ayarlar */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
}

*::-webkit-scrollbar {
    width: 3px;
    height: 3px;
    background-color: transparent;
}
*::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
}
*::-webkit-scrollbar-track {
    background-color: transparent;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 40px;
}

.container {
    max-width: 832px;
    margin: 0 auto;
}

/* -------- Hero Alanı -------- */
.hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 30px;
    margin-bottom: 40px;
}

.hero-text {
    max-width: 60%;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
}

.slogan {
    font-size: 1.25rem;
    color: var(--date-color);
    font-weight: 300;
}

a {
    text-decoration: none;
}

.description {
    margin-top: 15px;
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 400;
}

.hero-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    margin-top: 10px;
    background-color: var(--card-bg-color);
    border: 3px solid var(--border-color);
    display: flex;
}


/* -------- GRID Alanı -------- */
.grid-container {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: repeat(6, 80px);
    gap: 10px;
    row-gap: 25px;
    width: 100%;
    height: 100%;
    position: relative;
}


/* Tablet / Mobil */
@media (max-width: 900px) {
    .grid-container {
        grid-template-columns: repeat(4, 1fr);
        grid-auto-rows: 80px;
    }
}

@media (max-width: 600px) {
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 80px;
    }
}

/* -------- Kartlar -------- */
.card {
    position: relative;
    background: var(--card-bg-color);
    border: 3px solid var(--border-color);
    border-radius: 10px;
    padding: 30px 20px 20px 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    overflow: visible;
    display: flex;
    flex-direction: column;
    cursor: grab;
    transition: transform 0.2s;
    user-select: none;
    z-index: 9;
}

.card:active {
    cursor: grabbing;
    z-index: 99;
}

/* -------- Kart Başlıkları -------- */
.card-title {
    position: absolute;
    top: -18px;
    left: 20px;
    background-color: var(--bg-color);
    border: 3px solid var(--border-color);
    border-radius: 10px;
    padding: 3px 9px;
    font-size: 1rem;
    font-weight: 600;
    text-transform: capitalize;
    letter-spacing: 1px;
    z-index: 100;
}

/* -------- Butonlar -------- */

.btn {
    background-color: var(--border-color);
    color: var(--text-color);
    border: none;
    border-radius: 5px;
    padding: 8px 12px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    margin-top: 5px;
}

.btn:hover {
    background-color: var(--accent-color);
}


/* -------- Liste Alanları -------- */
.list {
    list-style: none;
    overflow-y: auto;
}

.list a {
    text-decoration: none;
    color: var(--text-color);
}

.list-item {
    display: flex;
    align-items: center;
    padding: 12px;
    cursor: pointer;
    transition: background-color 0.2s;
    border-radius: 10px;
}

.list-item img {
    width: 20px;
    height: 20px;
    margin-right: 15px;
    border-radius: 4px;
    object-fit: cover;
}

.list-item:hover {
    border-radius: 10px;
    background-color: var(--border-color);
}

.list-item i {
    color: var(--date-color);
    margin-right: 15px;
    width: 20px;
    text-align: center;
}

.list-item span {
    flex-grow: 1;
}

.list-item .date {
    color: var(--date-color);
    font-size: 0.9rem;
    text-align: right;
}

.list-item:last-child {
    border-bottom: none;
}

/* -------- Progress Bar -------- */
.progress-bar {
    background-color: var(--border-color);
    border-radius: 5px;
    height: 10px;
    margin-top: 10px;
    width: 100%;
}

.progress {
    background-color: var(--accent-color);
    height: 100%;
    border-radius: 5px;
}

/* -------- Footer -------- */
footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--date-color);
}

.social-links a {
    color: var(--date-color);
    text-decoration: none;
    font-size: 1.5rem;
    margin-left: 20px;
    transition: color 0.2s;
}

.social-links a:hover {
    color: var(--link-hover-color);
}

/* -------- Responsive -------- */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
    }
    .hero-text {
        order: 2;
        max-width: 100%;
        margin-top: 20px;
    }
    .hero-image {
        display: none;
    }
}

@media (max-width: 600px) {
    body {
        padding: 20px;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    footer {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    .social-links a {
        margin: 0 10px;
    }
    #nav {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: 10px;
    }

    #nav li {
        flex: 0 0 auto;
        list-style: none;
        text-align: center;
    }
}


/* Temel gökyüzü */
.sky {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 200px;
  overflow: hidden;
  z-index: -1;
  transition: background 2s;
}

/* Yıldızlar */
.star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: white;
  border-radius: 50%;
  opacity: 0.8;
  animation: twinkle 2s infinite alternate, starMove linear infinite;
}

/* Parıldama animasyonu */
@keyframes twinkle {
  0% { opacity: 0.3; }
  100% { opacity: 1; }
}

/* Yatay ve dikey kayma animasyonu */
@keyframes starMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(calc(20px * var(--dirX)), calc(10px * var(--dirY))); }
}

/* Bulutlar */
.cloud {
  position: absolute;
  background: rgba(200,200,200,0.4);
  border-radius: 50%;
  width: 100px;
  height: 50px;
  animation: cloudMove linear infinite;
}

@keyframes cloudMove {
  0% { transform: translateX(-150px); }
  100% { transform: translateX(100vw); }
}

/* Yağmur */
.rain-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 200px;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}
.rain {
    position: absolute;
    top: -50px;
    width: 2px;
    height: 15px;
    background: rgba(35, 181, 181, 0.5);
    animation: fall linear infinite;
}

@keyframes fall {
    0% {
        transform: translateY(-20px);
        opacity: 0.5;
    }
    100% {
        transform: translateY(100vh);
        opacity: 0;
    }
}

/* Kar */
.snow {
    width: 6px;
    height: 6px;
    top: -50px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    position: absolute;
    animation: snowFall linear infinite;
}

@keyframes snowFall {
    0% {
        transform: translateY(-10px) translateX(0);
        opacity: 0.7;
    }
    100% {
        transform: translateY(100vh) translateX(20px);
        opacity: 0.3;
    }
}

.firework {
    position: absolute;
    bottom: 0;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color, var(--accent-color));
    animation: rise 0.8s ease-out forwards;
}

.explosion {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color, var(--accent-color));
    opacity: 0;
    animation: explode 0.6s ease-out forwards;
}

@keyframes rise {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    80% {
        transform: translateY(-200px);
        opacity: 1;
    }
    100% {
        transform: translateY(-200px);
        opacity: 0;
    }
}

@keyframes explode {
    0% {
        transform: translate(0,0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(var(--x, 0px), var(--y, 0px)) scale(0.5);
        opacity: 0;
    }
}

.meteor {
  position: absolute;
  width: 2px;
  height: 100px;
  background: linear-gradient(45deg, white, transparent);
  opacity: 0.8;
  transform: rotate(45deg);
  animation: meteorFall1 2s linear forwards;
}

@keyframes meteorFall1 {
  0% {
    transform: translate(0, 0) rotate(315deg);
    opacity: 1;
  }
  100% {
    transform: translate(200px, 200px) rotate(315deg);
    opacity: 0;
  }
}

@keyframes meteorFall2 {
  0% {
    transform: translate(0, 0) rotate(45deg);
    opacity: 1;
  }
  100% {
    transform: translate(-200px, 200px) rotate(45deg);
    opacity: 0;
  }
}