/**
 * Block: Subpage Header
 *
 * Kompakter Header für Unterseiten.
 * Gradient-Animation oder Volltonfarbe, ohne Dots.
 *
 * @package DTVP
 * @since   1.3.0
 */

/* ==========================================================================
   Color Schemes – Gradient Mode (reuses Page Header palette)
   ========================================================================== */

.subpage-header--green {
    --sph-gradient-primary: #1a6b4a;
    --sph-gradient-mid: #0a2e1e;
    --sph-gradient-dark: var(--color-hero-dark, #0d0d0d);
    --sph-bloom-color: rgba(0, 180, 120, 0.22);
}

.subpage-header--purple {
    --sph-gradient-primary: #8a5cf5;
    --sph-gradient-mid: #3a0e52;
    --sph-gradient-dark: var(--color-hero-dark, #0d0d0d);
    --sph-bloom-color: rgba(138, 92, 245, 0.25);
}

.subpage-header--magenta {
    --sph-gradient-primary: var(--color-hero-purple, #7a1580);
    --sph-gradient-mid: var(--color-hero-mid, #2e0a3e);
    --sph-gradient-dark: var(--color-hero-dark, #0d0d0d);
    --sph-bloom-color: rgba(220, 0, 110, 0.32);
}

.subpage-header--lime-green {
    --sph-gradient-primary: #A6BF17;
    --sph-gradient-mid: #10977C;
    --sph-gradient-dark: var(--color-hero-dark, #0d0d0d);
    --sph-bloom-color: rgba(166, 191, 23, 0.28);
}

.subpage-header--beige {
    --sph-gradient-primary: #e1dbcb;
    --sph-gradient-mid: #a89e8a;
    --sph-gradient-dark: #6b6152;
    --sph-bloom-color: rgba(225, 219, 203, 0.3);
}

.subpage-header--pink-dark {
    --sph-gradient-primary: #E4006F;
    --sph-gradient-mid: #92003F;
    --sph-gradient-dark: #500022;
    --sph-bloom-color: rgba(228, 0, 111, 0.28);
}

.subpage-header--orange-dark {
    --sph-gradient-primary: #F4911C;
    --sph-gradient-mid: #B86516;
    --sph-gradient-dark: #7C3A10;
    --sph-bloom-color: rgba(244, 145, 28, 0.28);
}

.subpage-header--blue-dark {
    --sph-gradient-primary: #02AECD;
    --sph-gradient-mid: #01628D;
    --sph-gradient-dark: #00154E;
    --sph-bloom-color: rgba(2, 174, 205, 0.28);
}

/* ==========================================================================
   Color Schemes – Solid Mode
   ========================================================================== */

.subpage-header--solid {
    background-color: var(--color-dark, #0d0d0d);
}

.subpage-header--solid-dark {
    background-color: var(--color-dark, #0d0d0d);
}

.subpage-header--solid-green {
    background-color: #1a6b4a;
}

.subpage-header--solid-purple {
    background-color: #3a0e52;
}

.subpage-header--solid-magenta {
    background-color: var(--color-hero-purple, #7a1580);
}

.subpage-header--solid-beige {
    background-color: #e1dbcb;
}

/* ==========================================================================
   Keyframes (Gradient Mode only)
   ========================================================================== */

@keyframes sph-gradient-shift {
    0% {
        background-position: 40% 55%;
        filter: hue-rotate(0deg) brightness(1);
    }
    33% {
        background-position: 48% 45%;
        filter: hue-rotate(20deg) brightness(1.1);
    }
    66% {
        background-position: 35% 58%;
        filter: hue-rotate(-12deg) brightness(0.92);
    }
    100% {
        background-position: 40% 55%;
        filter: hue-rotate(0deg) brightness(1);
    }
}

@keyframes sph-bloom {
    0%   { opacity: 0.3; transform: scale(1); }
    50%  { opacity: 0.9; transform: scale(1.12); }
    100% { opacity: 0.3; transform: scale(1); }
}

/* ==========================================================================
   Block Wrapper
   ========================================================================== */

.subpage-header {
    position: relative;
    z-index: var(--z-base, 1);
    width: 100%;
    min-height: 35vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

/* Gradient mode: dark fallback background */
.subpage-header--gradient {
    background: var(--sph-gradient-dark);
}

/* ==========================================================================
   Background: Gradient Animation
   ========================================================================== */

.subpage-header__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.subpage-header__gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse at 25% 65%,
        var(--sph-gradient-primary) 0%,
        var(--sph-gradient-mid) 36%,
        var(--sph-gradient-dark) 68%
    );
    background-size: 200% 200%;
    animation: sph-gradient-shift 14s ease-in-out infinite;
}

.subpage-header__gradient::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        ellipse at 30% 40%,
        var(--sph-bloom-color) 0%,
        transparent 55%
    );
    animation: sph-bloom 14s ease-in-out infinite alternate;
}

/* ==========================================================================
   Content
   ========================================================================== */

.subpage-header__inner {
    position: relative;
    z-index: var(--z-raised, 10);
    width: 100%;
    max-width: var(--container-max, 1280px);
    margin: 0 auto;
    padding: var(--space-16, 4rem) var(--container-padding, 1.5rem) var(--space-12, 3rem);
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.subpage-header__content {
    max-width: 70%;
    display: flex;
    flex-direction: column;
    gap: var(--space-4, 1rem);
}

.subpage-header__eyebrow {
    font-family: var(--font-mono, monospace);
    font-size: var(--text-xs, 0.75rem);
    font-weight: var(--font-medium, 500);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    margin: 0;
}

.subpage-header__heading {
    font-family: var(--font-display, sans-serif);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 400;
    line-height: var(--leading-tight, 1.1);
    letter-spacing: -0.02em;
    color: var(--color-white, #fff);
    margin: 0;
}

.subpage-header__heading p {
    margin: 0;
}

.subpage-header__subtext {
    font-family: var(--font-body, sans-serif);
    font-size: var(--text-base, 1rem);
    line-height: var(--leading-loose, 1.75);
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
    max-width: 560px;
}

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

@media (max-width: 768px) {
    .subpage-header {
        min-height: 28vh;
    }

    .subpage-header__content {
        max-width: 100%;
    }

    .subpage-header__inner {
        padding-top: var(--space-12, 3rem);
        padding-bottom: var(--space-8, 2rem);
    }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .subpage-header__gradient,
    .subpage-header__gradient::after {
        animation: none !important;
    }
}

/* ==========================================================================
   Editor Preview
   ========================================================================== */

.acf-block-preview .subpage-header {
    min-height: 250px;
}

.acf-block-preview .subpage-header__gradient {
    animation: none;
}

.acf-block-preview .subpage-header__gradient::after {
    animation: none;
}