/*
 * Page Header Styles
 * 下層ページのメインビジュアル統一デザイン
 * 3Dボックス型立体デザイン対応
 */

/* ==========================================================================
   Page Header Component
   ========================================================================== */

.page-header {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;

    background: linear-gradient(135deg, var(--color-box-blue) 0%, var(--color-box-blue-dark) 100%);
    color: white;
}

/* 3D Background Effects */
.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 50% 20%, rgba(0, 0, 0, 0.1) 0%, transparent 50%);
    z-index: 1;
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: -30px;
    right: -30px;
    height: 80px;
    background: var(--color-box-blue-dark);
    transform: skewY(-2deg);
    transform-origin: bottom left;
    z-index: 1;
}

/* Header Content */
.page-header-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: var(--spacing-8) var(--spacing-4);
}

.page-header-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--spacing-4);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.025em;
}

.page-header-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 300;
    opacity: 0.9;
    margin-bottom: var(--spacing-6);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* Decorative Elements */
.page-header-decoration {
    position: absolute;
    top: 50%;
    right: 5%;
    transform: translateY(-50%) rotate(90deg);
    font-size: clamp(6rem, 15vw, 12rem);
    font-weight: 900;
    opacity: 0.05;
    color: rgba(255, 255, 255, 0.1);
    font-family: 'Arial Black', sans-serif;
    letter-spacing: -0.05em;
    user-select: none;
    pointer-events: none;
    z-index: 1;
}

/* Page Header Variants */
.page-header--business {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.page-header--business::after {
    background: var(--color-primary-dark);
}

.page-header--company {
    background: linear-gradient(135deg, var(--color-box-beige) 0%, var(--color-box-beige-dark) 100%);
    color: var(--color-neutral-800);
}

.page-header--company::after {
    background: var(--color-box-beige-dark);
}

.page-header--company .page-header-title {
    color: var(--color-neutral-900);
    text-shadow: 0 2px 10px rgba(255, 255, 255, 0.3);
}

.page-header--machine {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
}

.page-header--machine::after {
    background: var(--color-secondary-dark);
}




.page-header-float {
    position: absolute;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    animation: none;
    z-index: 1;
}

.page-header-float:nth-child(1) {
    top: 20%;
    left: 10%;
    width: 80px;
    height: 80px;
    animation-delay: -2s;
}

.page-header-float:nth-child(2) {
    top: 60%;
    right: 15%;
    width: 60px;
    height: 60px;
    animation-delay: -4s;
}

.page-header-float:nth-child(3) {
    bottom: 30%;
    left: 20%;
    width: 40px;
    height: 40px;
    animation-delay: -6s;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
    .page-header {
        min-height: 50vh;
    }

    .page-header-content {
        padding: var(--spacing-6) var(--spacing-4);
    }

    .page-header-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-3);
    }

    .page-header-subtitle {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-4);
    }

    .page-header-decoration {
        display: none;
    }

    .page-header::after {
        height: 40px;
        bottom: -15px;
    }
}

@media (max-width: 480px) {
    .page-header {
        min-height: 40vh;
    }

    .page-header-content {
        padding: var(--spacing-4) var(--spacing-3);
    }

    .page-header-title {
        font-size: var(--font-size-xl);
    }

    .page-header-subtitle {
        font-size: var(--font-size-sm);
    }

    .page-header-decoration {
        display: none;
    }
}