:root {
    --color-white: #ffffff;
    --color-dark: #0a0a0a;
    --color-blue: #003A78;
    --color-line: #1B6D90;
    --font-primary: 'Montserrat', sans-serif;
    --font-footer: 'Oswald', sans-serif;
    --transition-smooth: all 0.3s ease;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background-color: var(--color-dark);
    color: var(--color-white);
}

/* HEADER */
.header-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    height: 80px;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-logo {
    height: 70px;
    width: auto;
    display: block;
}

/* BACKGROUND */
.background-image {
    position: fixed;
    inset: 0;
    z-index: 0;
    background-image: url("assets/images/backgroundd.png");
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

/* OVERLAY */
.overlay {
    position: fixed;
    inset: 0;
    z-index: 1;
    background: rgba(0, 0, 0, 0.55);
}

/* UNDER CONSTRUCTION ŞERİDİ */
.construction-banner {
    position: fixed;
    left: 0;
    bottom: 265px;
    width: 100%;
    z-index: 8;

    background: repeating-linear-gradient(
        45deg,
        #f1c40f 0,
        #f1c40f 14px,
        #111 14px,
        #111 28px
    );

    border-top: 2px solid rgba(0, 0, 0, 0.9);
    border-bottom: 2px solid rgba(0, 0, 0, 0.9);
    padding: 8px 0;
    opacity: 0.85;
    overflow: hidden;
    pointer-events: none;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);

    display: flex;
    justify-content: center;
    align-items: center;
}

.construction-banner span {
    background: #f1c40f;
    padding: 3px 28px;
    border: 2px solid #111;
    font-family: var(--font-footer);
    font-size: clamp(14px, 1.6vw, 22px);
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #111;
    white-space: nowrap;
}

/* FOOTER */
.footer-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    background: var(--color-blue);
    border-top: 4px solid var(--color-line);
    padding: 100px 0 0;
    display: flex;
    flex-direction: column;
}

.footer-inner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 50px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 40px 32px;
    width: 100%;
}

.footer-item {
    flex: 1;
}

.footer-label {
    display: block;
    font-family: var(--font-footer);
    font-weight: 600;
    font-size: 15px;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
}

.footer-value,
.footer-address {
    display: block;
    font-family: var(--font-footer);
    font-weight: 400;
    font-size: 14px;
    line-height: 1.7;
    color: rgba(232, 230, 227, 0.95);
    text-decoration: none;
}

.footer-separator {
    width: 1px;
    background: rgba(255, 255, 255, 0.15);
    align-self: stretch;
}

.footer-bottom {
    text-align: center;
    padding: 8px 20px;
    font-family: var(--font-footer);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.4);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom-line {
    width: 100%;
    height: 15px;
    background: var(--color-line);
}

/* FOOTER LOGO */
.footer-logo {
    position: absolute;
    left: 7%;
    top: -50px;
    z-index: 15;
}

.footer-logo img {
    height: 120px;
    width: auto;
    display: block;
    filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.5));
}

/* TABLET */
@media (max-width: 768px) {

    .header-bar {
        height: 55px;
        padding: 0 16px;
    }

    .header-logo {
        height: 35px;
    }

    .construction-banner {
        bottom: 170px;
        padding: 6px 0;
    }

    .construction-banner span {
        font-size: 11px;
        padding: 2px 12px;
        letter-spacing: 0.08em;
    }

    .footer-bar {
        padding: 25px 0 0;
    }

    .footer-inner {
        flex-wrap: wrap;
        gap: 0;
        padding: 0 16px 12px;
    }

    .footer-item {
        flex: 1 1 50%;
        text-align: center;
        padding: 8px 10px;
    }

    .footer-label {
        font-size: 12px;
        margin-bottom: 6px;
    }

    .footer-value,
    .footer-address {
        font-size: 11px;
        line-height: 1.4;
    }

    .footer-separator {
        display: none;
    }

    .footer-logo {
        left: 50%;
        transform: translateX(-50%);
        top: -35px;
        z-index: 15;
    }

    .footer-logo img {
        height: 65px;
    }

    .footer-bottom-line {
        height: 5px;
    }
}

/* MOBIL */
@media (max-width: 480px) {

    .header-bar {
        height: 48px;
        padding: 0 10px;
    }

    .header-logo {
        height: 28px;
    }

    .construction-banner {
        bottom: 155px;
        padding: 4px 0;
    }

    .construction-banner span {
        font-size: 8px;
        padding: 2px 6px;
        letter-spacing: 0.05em;
    }

    .footer-bar {
        padding: 30px 0 0;
    }

    .footer-inner {
        flex-direction: column;
        align-items: center;
        gap: 10px;
        padding: 0 12px 10px;
    }

    .footer-item {
        flex: 1 1 100%;
        text-align: center;
        padding: 4px 0;
    }

    .footer-label {
        font-size: 11px;
        margin-bottom: 4px;
    }

    .footer-value,
    .footer-address {
        font-size: 10px;
        line-height: 1.3;
    }

    .footer-bottom {
        font-size: 9px;
        padding: 6px 8px;
    }

    .footer-logo {
        left: 50%;
        transform: translateX(-50%);
        top: -28px;
        z-index: 15;
    }

    .footer-logo img {
        height: 50px;
    }

    .footer-bottom-line {
        height: 4px;
    }
}