/*
 * Water Flow — Hint System Styles (Page 5)
 * Bottom-sheet modal UI, assistance tier cards, coin cost badges, and glowing animations.
 */

/* ────────────────────────────────────────
   Modal Overlay
   ──────────────────────────────────────── */

.hint-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    min-height: 100dvh;
    background: rgba(6, 14, 26, 0.78);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: max(var(--space-md), env(safe-area-inset-top, 16px))
             max(var(--space-md), env(safe-area-inset-right, 16px))
             max(var(--space-md), env(safe-area-inset-bottom, 16px))
             max(var(--space-md), env(safe-area-inset-left, 16px));
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: opacity 220ms cubic-bezier(0.16, 1, 0.3, 1),
                visibility 220ms cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.hint-overlay--visible {
    opacity: 1;
    visibility: visible;
}

/* ────────────────────────────────────────
   Hint Bottom Sheet Card
   ──────────────────────────────────────── */

.hint-card {
    position: relative;
    width: 100%;
    max-width: 400px;
    background: linear-gradient(
        175deg,
        rgba(15, 39, 68, 0.97) 0%,
        rgba(11, 25, 41, 0.98) 60%,
        rgba(6, 14, 26, 0.99) 100%
    );
    border: 1.5px solid rgba(0, 180, 216, 0.3);
    border-radius: var(--radius-xxl);
    padding: var(--space-lg) var(--space-md) var(--space-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.6),
                0 0 30px rgba(0, 180, 216, 0.18),
                inset 0 1px 0 rgba(255, 255, 255, 0.15);
    transform: translateY(30px);
    opacity: 0;
    transition: transform 240ms cubic-bezier(0.16, 1, 0.3, 1),
                opacity 220ms ease;
    margin: 0 auto;
}

.hint-overlay--visible .hint-card {
    transform: translateY(0);
    opacity: 1;
}

/* ────────────────────────────────────────
   Header & Balance HUD
   ──────────────────────────────────────── */

.hint-card__header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xs);
}

.hint-card__title-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hint-card__bulb-icon {
    width: 28px;
    height: 28px;
    color: var(--coin-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.6));
}

.hint-card__bulb-icon svg {
    width: 24px;
    height: 24px;
}

.hint-card__title {
    font-size: 1.25rem; /* 20px */
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--white);
    margin: 0;
}

.hint-card__balance-badge {
    display: flex;
    align-items: center;
    gap: 5px;
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.25);
    border-radius: var(--radius-full);
    padding: 4px 10px;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--coin-gold);
}

.hint-card__balance-icon {
    width: 14px;
    height: 14px;
}

.hint-card__balance-icon svg {
    width: 100%;
    height: 100%;
}

.hint-card__subtitle {
    width: 100%;
    text-align: left;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hint-card__limit-badge {
    font-size: 0.6875rem;
    color: var(--primary-light);
    background: rgba(0, 180, 216, 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(0, 180, 216, 0.2);
}

/* ────────────────────────────────────────
   Hint Tier Option Cards
   ──────────────────────────────────────── */

.hint-options-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    margin-bottom: var(--space-md);
}

.hint-tier-card {
    position: relative;
    width: 100%;
    min-height: 56px;
    background: rgba(255, 255, 255, 0.04);
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-normal),
                border-color var(--transition-normal),
                transform var(--transition-fast),
                box-shadow var(--transition-normal);
}

.hint-tier-card:hover:not(:disabled) {
    background: rgba(0, 180, 216, 0.1);
    border-color: rgba(0, 180, 216, 0.35);
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(0, 180, 216, 0.2);
}

.hint-tier-card:active:not(:disabled) {
    transform: scale(0.98);
}

.hint-tier-card:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}

.hint-tier-card--recommended {
    border-color: rgba(0, 180, 216, 0.45);
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.09) 0%, rgba(15, 39, 68, 0.4) 100%);
}

.hint-tier-card:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(0.5);
    pointer-events: none;
}

/* Tier Card Content Layout */
.hint-tier-card__left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.hint-tier-card__icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: rgba(0, 180, 216, 0.12);
    border: 1px solid rgba(0, 180, 216, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    flex-shrink: 0;
}

.hint-tier-card__icon svg {
    width: 20px;
    height: 20px;
}

.hint-tier-card__info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.hint-tier-card__title-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 2px;
}

.hint-tier-card__title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--white);
    letter-spacing: 0.5px;
}

.hint-tier-card__badge {
    font-size: 0.5625rem; /* 9px */
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--coin-gold);
    background: rgba(255, 215, 0, 0.14);
    border: 1px solid rgba(255, 215, 0, 0.35);
    padding: 1px 6px;
    border-radius: var(--radius-full);
}

.hint-tier-card__desc {
    font-size: 0.6875rem; /* 11px */
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Cost Action Button Pill */
.hint-tier-card__cost-pill {
    display: flex;
    align-items: center;
    gap: 5px;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.18) 0%, rgba(184, 134, 11, 0.12) 100%);
    border: 1px solid rgba(255, 215, 0, 0.35);
    border-radius: var(--radius-full);
    padding: 6px 12px;
    font-size: var(--font-size-xs);
    font-weight: 800;
    color: var(--coin-gold);
    flex-shrink: 0;
}

.hint-tier-card__cost-icon {
    width: 14px;
    height: 14px;
}

.hint-tier-card__cost-icon svg {
    width: 100%;
    height: 100%;
}

.hint-tier-card--cant-afford .hint-tier-card__cost-pill {
    border-color: rgba(255, 82, 82, 0.35);
    color: var(--error);
    background: rgba(255, 82, 82, 0.1);
}

/* ────────────────────────────────────────
   Close Button
   ──────────────────────────────────────── */

.hint-btn-close {
    width: 100%;
    min-height: 48px;
    padding: 12px 18px;
    background: rgba(255, 255, 255, 0.06);
    border: 1.5px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-secondary);
    transition: background var(--transition-normal),
                color var(--transition-normal),
                transform var(--transition-fast);
    cursor: pointer;
}

.hint-btn-close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--white);
    transform: translateY(-1px);
}

.hint-btn-close:active {
    transform: scale(0.97);
}

.hint-btn-close:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}

/* ────────────────────────────────────────
   Toast Alert for Insufficient Coins / Cap
   ──────────────────────────────────────── */

.hint-toast {
    position: fixed;
    top: 70px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: rgba(15, 39, 68, 0.96);
    border: 1px solid rgba(255, 82, 82, 0.45);
    color: var(--white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.55),
                0 0 15px rgba(255, 82, 82, 0.25);
    z-index: calc(var(--z-modal) + 30);
    opacity: 0;
    transition: transform 220ms ease, opacity 220ms ease;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hint-toast--visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ────────────────────────────────────────
   Reduced Motion
   ──────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    .hint-overlay,
    .hint-card,
    .hint-toast {
        animation: none !important;
        transition: none !important;
    }
}