/* ============================================
   Bizim Şirketler Grubu — Landing Page
   ============================================ */

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

:root {
    --gold: #f5c518;
    --gold-light: #ffd84d;
    --gold-dark: #d4a810;
    --white: #ffffff;
    --white-muted: rgba(255, 255, 255, 0.75);
    --white-dim: rgba(255, 255, 255, 0.45);
    --circle-logo-size: 165px;
    --font-sans: 'Montserrat', system-ui, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: #000000;
    color: var(--white);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ---- Background ---- */

.page {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.page__bg {
    position: fixed;
    inset: 0;
    background-image: url('../images/background.jpg');
    background-size: cover;
    background-position: center;
    filter: blur(2px) brightness(0.5);
    transform: scale(1.05);
    z-index: 0;
}

.page__overlay {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 0%, rgba(245, 197, 24, 0.1) 0%, transparent 60%),
        radial-gradient(ellipse 70% 50% at 50% 100%, rgba(255, 255, 255, 0.05) 0%, transparent 55%),
        linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.68) 50%, rgba(0, 0, 0, 0.72) 100%);
    z-index: 1;
}

/* ---- Hero Layout ---- */

.hero {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1100px;
    padding: 3rem 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: fadeUp 1s ease both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Group Logo ---- */

.group-logo {
    margin-bottom: 1.75rem;
}

.group-logo__img {
    display: block;
    width: min(520px, 88vw);
    height: auto;
    margin: 0 auto;
}

/* ---- About ---- */

.about {
    width: 100%;
    max-width: 720px;
    margin: 0 auto 3rem;
    padding: 0 0.5rem;
    animation: fadeUp 0.9s ease 0.15s both;
}

.about__title {
    font-family: var(--font-sans);
    font-size: clamp(0.7rem, 1.8vw, 0.82rem);
    font-weight: 500;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.25rem;
}

.about__text {
    font-family: var(--font-sans);
    font-size: clamp(0.88rem, 1.6vw, 0.95rem);
    font-weight: 400;
    line-height: 1.8;
    color: var(--white-muted);
    margin-bottom: 1rem;
}

.about__text:last-child {
    margin-bottom: 0;
}

/* ---- Section Label ---- */

.section-label {
    font-size: clamp(0.65rem, 1.8vw, 0.78rem);
    font-weight: 400;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--white-muted);
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-label::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-dark), transparent);
}

/* ---- Brand Cards ---- */

.brands {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem 3rem;
    width: 100%;
    margin-bottom: 3rem;
}

.brand-card {
    animation: fadeUp 0.8s ease both;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.brand-card:nth-child(1) { animation-delay: 0.2s; }
.brand-card:nth-child(2) { animation-delay: 0.35s; }
.brand-card:nth-child(3) { animation-delay: 0.5s; }

.brand-card__logo-link {
    display: flex;
    justify-content: center;
    align-items: center;
    width: var(--circle-logo-size);
    height: var(--circle-logo-size);
    text-decoration: none;
    transition: transform 0.35s ease;
}

.brand-card__logo-link:hover {
    transform: translateY(-4px);
}

.brand-card__logo-link:hover .brand-card__img {
    filter: brightness(1.08);
}

.brand-card__body {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 300px;
    padding: 0 0.5rem;
}

.brand-card__logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--circle-logo-size);
    height: var(--circle-logo-size);
    margin-bottom: 1.5rem;
    flex-shrink: 0;
}

.brand-card__logo--round .brand-card__img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.brand-card__logo--hotel .brand-card__img {
    transform: scale(0.82);
}

.brand-card__logo--fitness .brand-card__img {
    transform: scale(1.0);
}

.brand-card__logo--wide .brand-card__img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.brand-card__img {
    display: block;
    transition: filter 0.35s ease, transform 0.35s ease;
}

.brand-card__desc {
    font-family: var(--font-sans);
    font-size: 0.92rem;
    font-weight: 400;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: 1.25rem;
    text-align: center;
}

.brand-card__contact {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    width: 100%;
    margin-bottom: 1rem;
}

.brand-card__contact a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--white-muted);
    text-decoration: none;
    transition: color 0.25s ease;
}

.brand-card__contact a:hover {
    color: var(--gold-light);
}

.brand-card__icon {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    fill: currentColor;
}

.brand-card__social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.brand-card__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: var(--white-muted);
    text-decoration: none;
    transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.brand-card__social a:hover {
    color: var(--gold-light);
    border-color: rgba(245, 197, 24, 0.4);
    background: rgba(245, 197, 24, 0.08);
}

.brand-card__social .brand-card__icon {
    width: 16px;
    height: 16px;
}

/* ---- Footer ---- */

.footer {
    margin-top: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    width: 100%;
}

.footer__text {
    font-size: 0.7rem;
    font-weight: 300;
    letter-spacing: 0.12em;
    color: var(--white-dim);
    text-transform: uppercase;
}

/* ---- Responsive ---- */

@media (max-width: 900px) {
    .brands {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        max-width: 420px;
    }

    .hero {
        padding-top: 4rem;
    }
}

@media (max-width: 480px) {
    :root {
        --circle-logo-size: 140px;
    }

    .section-label {
        letter-spacing: 0.25em;
    }
}

/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}