/**
 * Placeholder Images CSS
 * Demo görseller için placeholder stilleri
 */

/* Slider Placeholders */
.slider-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--fb-navy) 0%, var(--fb-navy-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.slider-placeholder::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 237, 0, 0.1) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(-50%, -50%) rotate(0deg); }
    50% { transform: translate(-50%, -50%) rotate(180deg); }
}

/* About Section Placeholder */
.about-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.about-placeholder::before {
    content: '🏊';
    font-size: 8rem;
    opacity: 0.3;
}

/* Registration Section Placeholder */
.register-placeholder {
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.register-placeholder::before {
    content: '🏊‍♂️';
    font-size: 10rem;
    opacity: 0.3;
}

/* Testimonial Avatar Placeholder */
.testimonial-avatar {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--fb-navy) 0%, var(--fb-navy-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.2rem;
}

/* Logo Placeholder */
.logo-placeholder {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--fb-navy) 0%, var(--fb-navy-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--fb-yellow);
    font-weight: 900;
    font-size: 1.2rem;
}

/* Generic Image Placeholder */
.img-placeholder {
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 3rem;
}

/* Swimming Pool Illustration */
.pool-illustration {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #60a5fa 0%, #3b82f6 50%, #2563eb 100%);
    position: relative;
    overflow: hidden;
}

.pool-illustration::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 30%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.3) 0%, transparent 100%);
}

.pool-illustration::after {
    content: '🏊';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 6rem;
    opacity: 0.5;
}

/* Wave Animation */
.wave-bg {
    position: relative;
    overflow: hidden;
}

.wave-bg::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%;
    height: 100px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23002d72' fill-opacity='0.1' d='M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E") repeat-x;
    animation: wave 10s linear infinite;
}

@keyframes wave {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}