:root{
    --odmf-text: #ffffff;
    --odmf-muted: rgba(255,255,255,.6);
    --odmf-line: rgba(255,255,255,.12);
    --odmf-accent: var(--main-cyan);
}
.night-mode{
    --odmf-text: #e5e7eb;
    --odmf-muted: #9aa3b2;
    --odmf-line: var(--default-border-color);
}

.odmf{
    margin-top: 3rem;
    overflow: hidden;
    color: var(--odmf-text);
    font-size: .9rem;
    overflow-wrap: break-word;
}

/* ---- Dalga ---- */
.odmf-wave{
    display: block;
    width: 100%;
    height: 60px;
    margin-bottom: -1px;
}
.odmf-wave path{
    fill: var(--main-bg);
    fill: color-mix(in srgb, var(--main-bg) 87%, #000);
}
.odmf-wave-back{ opacity: .45; }

/* ---- Gövde ---- */
.odmf-body{
    background-color: var(--main-bg);
    background-color: color-mix(in srgb, var(--main-bg) 87%, #000);
}

.odmf-container{
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.4rem 1.5rem 1.3rem;
}

/* ---- Arka planda dev silik wordmark ---- */
.odmf-mark{
    position: absolute;
    right: -14px;
    bottom: -34px;
    font-family: 'Rajdhani','Roboto',Sans-Serif;
    font-size: clamp(110px, 16vw, 230px);
    font-weight: 800;
    line-height: 1;
    letter-spacing: 6px;
    color: #fff;
    opacity: .03;
    pointer-events: none;
    user-select: none;
}

/* ---- Üst bölüm ---- */
.odmf-top{
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 2.5rem;
}

.odmf-logo{
    display: inline-block;
    font-family: 'Rajdhani','Roboto',Sans-Serif;
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: .5px;
    line-height: 1.1;
    color: var(--odmf-text);
    text-decoration: none;
}
.odmf-logo span{ color: var(--odmf-accent); }

.odmf-slogan{
    margin: .7rem 0 1.2rem;
    max-width: 38ch;
    font-size: .9rem;
    line-height: 1.7;
    color: var(--odmf-muted);
}

.odmf-social{
    display: flex;
    gap: .6rem;
}
.odmf-social a{
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--odmf-text);
    background: rgba(255,255,255,.05);
    border: 1px solid var(--odmf-line);
    transition: all .25s ease;
    -webkit-tap-highlight-color: transparent;
}
.odmf-social a:hover{
    background: var(--main-cyan);
    border-color: var(--main-cyan);
    color: #0b1220;
    transform: translateY(-2px);
}
.odmf-social svg{ width: 15px; height: 15px; fill: currentColor; }

.odmf-title{
    margin: .3rem 0 1.1rem;
    font-family: 'Rajdhani','Roboto',Sans-Serif;
    font-size: .82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.6px;
    color: var(--odmf-accent);
}

.odmf-links{
    list-style: none;
    margin: 0;
    padding: 0;
}
.odmf-links li + li{ margin-top: .65rem; }
.odmf-links a{
    color: var(--odmf-muted);
    transition: color .2s ease, transform .2s ease;
    display: inline-block;
    -webkit-tap-highlight-color: transparent;
}
.odmf-links a:hover{
    color: var(--odmf-accent);
    transform: translateX(3px);
}
.odmf-links i{ display: none !important; }

/* ---- Alt bar ---- */
.odmf-bottom{
    position: relative;
    z-index: 1;
    margin-top: 2.3rem;
    padding-top: 1.1rem;
    border-top: 1px solid var(--odmf-line);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .6rem 1.5rem;
    font-size: .78rem;
    color: var(--odmf-muted);
}
.odmf-copy{ margin: 0; }

.odmf-legal{
    display: flex;
    align-items: center;
    gap: 1.2rem;
}
.odmf-legal a{
    color: var(--odmf-muted);
    transition: color .2s ease;
}
.odmf-legal a:hover{ color: var(--odmf-accent); }

.odmf-fine{
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: .9rem;
}
.odmf-crafted{
    display: inline-flex;
    align-items: center;
    gap: .3rem;
}
.odmf-crafted svg,
.odmf-crafted i{ vertical-align: middle; }

#backtop{
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--odmf-text);
    background: rgba(255,255,255,.05);
    border: 1px solid var(--odmf-line);
    transition: all .25s ease;
    -webkit-tap-highlight-color: transparent;
}
#backtop svg{ width: 13px; height: 13px; fill: currentColor; }
#backtop:hover{
    background: var(--main-cyan);
    border-color: var(--main-cyan);
    color: #0b1220;
    transform: translateY(-2px);
}

.heartbeat{
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    animation-duration: 1.8s;
    animation-name: odm-heartbeat;
}
@keyframes odm-heartbeat{
    0%{transform:scale(.75)} 20%{transform:scale(1)} 40%{transform:scale(.75)}
    60%{transform:scale(1)} 80%{transform:scale(.75)} 100%{transform:scale(.75)}
}

/* ---- Tablet: 2 kolon, watermark küçülür ---- */
@media (max-width: 900px){
    .odmf-top{ grid-template-columns: 1fr 1fr; gap: 2rem 2.5rem; }
    .odmf-brand{ grid-column: 1 / -1; }
    .odmf-mark{ font-size: 140px; bottom: -22px; }
}

/* ---- Mobil: tek kolon, her şey ortalanır, watermark gizlenir ---- */
@media (max-width: 620px){
    .odmf-wave{ height: 42px; }
    .odmf-container{ padding: 2rem 1.2rem 1.2rem; }

    .odmf-mark{ display: none; }

    .odmf-top{ grid-template-columns: 1fr; gap: 1.9rem; }
    .odmf-brand,
    .odmf-col{ text-align: center; }

    .odmf-slogan{
        margin-left: auto;
        margin-right: auto;
        max-width: 42ch;
    }

    .odmf-social{ justify-content: center; }

    .odmf-bottom{
        margin-top: 2rem;
        padding-top: 1.2rem;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        gap: .85rem;
    }
    .odmf-legal{ justify-content: center; }
    .odmf-fine{ margin-left: 0; }
}