/* =====================================================================
   Interactive layer styles
   - Donation impact slider
   - Quick chooser
   - Fullscreen mobile menu
   - Live activity ticker
   - Toast notifications
   ===================================================================== */

/* ---------- Donation impact slider ---------- */
.impact-slider {
    --slider-pct: 9%;
    margin: 2rem 0;
    padding: 1.75rem;
    background: linear-gradient(180deg, #fff 0%, var(--c-bg-surface) 100%);
    border: 1px solid var(--c-line);
    border-radius: var(--radius);
    box-shadow: 0 10px 35px -20px rgba(15,60,58,.4);
    position: relative;
    overflow: hidden;
}
.impact-slider::before {
    content: ""; position: absolute; top: 0; right: 0; bottom: 0;
    width: var(--slider-pct);
    background: linear-gradient(90deg, rgba(228,123,61,0), rgba(228,123,61,.08));
    transition: width .2s ease;
    pointer-events: none;
}
.impact-amount {
    display: flex; align-items: baseline; justify-content: center; gap: .25rem;
    font-family: var(--font-display); font-weight: 800;
    color: var(--c-ink);
    margin-bottom: 1.5rem;
}
.amount-currency { font-size: 1.5rem; color: var(--c-ink-soft); }
.amount-value    { font-size: clamp(3rem, 8vw, 4.5rem); line-height: 1; color: var(--c-primary); }
.amount-period   { font-size: 1rem; color: var(--c-ink-soft); margin-inline-start: .5rem; }

.impact-bars { display: flex; flex-direction: column; gap: .9rem; margin-bottom: 1.5rem; }
.impact-bar {
    position: relative;
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: .65rem 1rem;
    align-items: baseline;
    padding: .65rem .85rem .75rem;
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.impact-bar .ib-num {
    grid-column: 1; grid-row: 1;
    font-family: var(--font-display); font-weight: 700;
    font-size: 1.6rem; color: var(--c-primary);
    line-height: 1; min-width: 2ch; text-align: end;
}
.impact-bar .ib-label {
    grid-column: 2; grid-row: 1;
    color: var(--c-ink-soft); font-size: .94rem;
}
.impact-bar .ib-fill {
    grid-column: 1 / -1; grid-row: 2;
    height: 3px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
    width: var(--w, 0%);
    border-radius: 999px;
    margin-top: .5rem;
    transition: width .4s cubic-bezier(.2,.8,.2,1);
}

/* Range input — modern styling */
.impact-range-wrap {
    display: block; margin: 1rem 0 .5rem;
}
.impact-range-label {
    display: block; font-size: .85rem; color: var(--c-ink-soft);
    text-align: center; margin-bottom: .65rem;
}
#impact-range {
    -webkit-appearance: none; appearance: none;
    width: 100%; height: 4px;
    background: linear-gradient(90deg, var(--c-primary) 0%, var(--c-primary) var(--slider-pct, 0%), var(--c-line) var(--slider-pct, 0%), var(--c-line) 100%);
    border-radius: 999px;
    outline: none;
    cursor: pointer;
}
#impact-range::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 28px; height: 28px;
    background: var(--c-accent);
    border: 4px solid #fff;
    border-radius: 50%;
    box-shadow: 0 4px 14px rgba(228,123,61,.55), 0 0 0 1px rgba(0,0,0,.06);
    cursor: grab;
    transition: transform .15s ease;
}
#impact-range::-webkit-slider-thumb:hover { transform: scale(1.1); }
#impact-range::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.05); }
#impact-range::-moz-range-thumb {
    width: 28px; height: 28px;
    background: var(--c-accent);
    border: 4px solid #fff;
    border-radius: 50%;
    box-shadow: 0 4px 14px rgba(228,123,61,.55);
    cursor: grab;
}
.impact-marks {
    display: flex; justify-content: space-between; margin-top: .35rem;
    font-size: .72rem; color: var(--c-ink-muted); padding: 0 4px;
}

/* ---------- Quick chooser ---------- */
.quick-chooser {
    position: relative;
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: var(--radius);
    padding: 2rem 1.75rem;
    box-shadow: 0 20px 50px -25px rgba(15,60,58,.25);
}
.qc-progress {
    --p: 0%;
    position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: var(--c-bg);
    border-top-left-radius: var(--radius); border-top-right-radius: var(--radius);
    overflow: hidden;
}
.qc-progress > span,
.qc-progress::after {
    content: ""; display: block; height: 100%;
    width: var(--p);
    background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
    transition: width .4s cubic-bezier(.2,.8,.2,1);
}
.qc-step {
    display: none; border: 0; padding: 0; margin: 0;
    opacity: 0; transform: translateY(8px);
    transition: opacity .35s ease, transform .35s ease;
}
.qc-step.is-active {
    display: block; opacity: 1; transform: none;
}
.qc-step-title {
    display: block; font-family: var(--font-display);
    font-size: .85rem; text-transform: uppercase; letter-spacing: .12em;
    color: var(--c-ink-soft); margin-bottom: 1.25rem; text-align: center;
}
.qc-options {
    display: grid; gap: .75rem; margin-bottom: 1rem;
}
.qc-options-2 { grid-template-columns: repeat(2, 1fr); }
.qc-options-3 { grid-template-columns: repeat(2, 1fr); }
.qc-options-4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 600px) {
    .qc-options-3 { grid-template-columns: repeat(3, 1fr); }
    .qc-options-4 { grid-template-columns: repeat(4, 1fr); }
}
.qc-options button {
    background: var(--c-bg-surface);
    border: 2px solid var(--c-line);
    padding: 1.25rem .75rem;
    border-radius: var(--radius);
    cursor: pointer;
    display: flex; flex-direction: column; align-items: center; gap: .35rem;
    font-family: var(--font-body); font-size: .92rem; font-weight: 500;
    color: var(--c-ink);
    transition: transform .15s ease, border-color .15s ease, background-color .15s ease;
}
.qc-options button:hover {
    transform: translateY(-2px);
    border-color: var(--c-primary);
    background: #fff;
}
.qc-options button.is-picked {
    border-color: var(--c-accent);
    background: var(--c-accent);
    color: #fff;
}
.qc-options button.is-picked .qc-emoji { transform: scale(1.2) rotate(5deg); }
.qc-emoji {
    font-size: 1.6rem; line-height: 1;
    transition: transform .25s ease;
}
.qc-label { font-size: .9rem; line-height: 1.3; text-align: center; }
.qc-back {
    background: transparent; border: 0;
    color: var(--c-ink-muted); cursor: pointer;
    font-size: .85rem; padding: .5rem .75rem;
    margin-top: .5rem;
}
.qc-back:hover { color: var(--c-primary); }
.qc-result { text-align: center; }
.qc-result-summary { margin: 0 0 1.25rem; font-size: 1.05rem; }
.qc-result .btn { margin: 0 auto; }

/* ---------- Fullscreen mobile menu ---------- */
#mobile-nav.fs-menu {
    position: fixed;
    inset: 0;
    background: var(--c-primary-dark);
    color: #fff;
    z-index: 200;
    padding: 5rem 2rem 2rem;
    overflow-y: auto;
    opacity: 0;
    pointer-events: none;
    transition: opacity .35s ease;
    display: block;
}
#mobile-nav.fs-menu.open {
    opacity: 1;
    pointer-events: auto;
}
#mobile-nav.fs-menu::before {
    content: "";
    position: absolute; top: -200px; right: -150px;
    width: 500px; height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(228,123,61,.4), transparent 60%);
    pointer-events: none;
    filter: blur(20px);
}
#mobile-nav.fs-menu ul {
    list-style: none; padding: 0; margin: 0;
    display: flex; flex-direction: column; gap: .5rem;
    max-width: 600px; margin: 0 auto;
    position: relative; z-index: 1;
}
#mobile-nav.fs-menu a {
    display: block;
    padding: 1.25rem 0;
    border-bottom: 1px solid rgba(255,255,255,.1);
    color: #fff;
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 6vw, 2.5rem);
    font-weight: 600;
    text-decoration: none;
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity .5s ease, transform .5s ease, color .15s ease;
}
#mobile-nav.fs-menu a.is-in {
    opacity: 1;
    transform: translateX(0);
}
#mobile-nav.fs-menu a:hover,
#mobile-nav.fs-menu a:focus {
    color: var(--c-accent);
}
/* Show fs-menu close button — repurpose the hamburger */
.menu-toggle[aria-expanded="true"] {
    position: fixed;
    top: 1rem; right: 1rem;
    z-index: 250;
    background: rgba(255,255,255,.1);
    color: #fff;
    border: 1px solid rgba(255,255,255,.2);
}
.menu-toggle[aria-expanded="true"] svg path { d: path('M6 6l12 12M18 6L6 18'); }

/* On desktop, keep the inline nav and never show the fs-menu */
@media (min-width: 1024px) {
    #mobile-nav.fs-menu { display: none !important; }
}

/* ---------- Live activity ticker ---------- */
.activity-ticker {
    position: fixed;
    bottom: 1rem; left: 1rem;
    z-index: 70;
    background: rgba(15,28,28,.95);
    color: #fff;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 999px;
    padding: .6rem 1rem .6rem 1.1rem;
    display: flex; align-items: center; gap: .65rem;
    font-size: .85rem;
    max-width: calc(100vw - 2rem);
    box-shadow: 0 10px 30px -10px rgba(0,0,0,.4);
    animation: slideUp .5s ease;
}
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
.activity-ticker .at-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: #4ADE80;
    flex: 0 0 auto;
    box-shadow: 0 0 0 0 rgba(74,222,128,.6);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(74,222,128,.7); }
    70%{ box-shadow: 0 0 0 10px rgba(74,222,128,0); }
    100%{box-shadow: 0 0 0 0 rgba(74,222,128,0); }
}
.activity-ticker .at-text {
    transition: opacity .25s ease;
    flex: 1; min-width: 0;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.activity-ticker .at-close {
    background: transparent; border: 0;
    color: rgba(255,255,255,.5); cursor: pointer;
    font-size: 1.2rem; line-height: 1; padding: 0 .25rem;
}
.activity-ticker .at-close:hover { color: #fff; }

/* On the smallest screens, push above the Quick Exit button */
@media (max-width: 600px) {
    .activity-ticker { bottom: 4.5rem; font-size: .8rem; }
}

/* ---------- Toast notifications ---------- */
.toast-container {
    position: fixed;
    bottom: 1rem; right: 1rem;
    z-index: 300;
    display: flex; flex-direction: column-reverse;
    gap: .5rem;
    pointer-events: none;
}
.toast {
    background: var(--c-ink);
    color: #fff;
    padding: .85rem 1.1rem;
    border-radius: var(--radius);
    font-size: .9rem;
    box-shadow: 0 12px 28px -10px rgba(0,0,0,.35);
    max-width: 340px;
    transform: translateX(120%);
    transition: transform .4s cubic-bezier(.2,.8,.2,1);
    pointer-events: auto;
}
.toast.is-in { transform: translateX(0); }
.toast-success { background: var(--c-success, #2E7D32); }
.toast-error   { background: var(--c-emergency, #B6443A); }
.toast-warn    { background: var(--c-warning, #BF8F2C); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    .impact-bar .ib-fill,
    .qc-progress > span,
    .qc-progress::after,
    .qc-step,
    #mobile-nav.fs-menu,
    #mobile-nav.fs-menu a,
    .toast,
    .activity-ticker .at-text,
    .activity-ticker .at-dot { transition: none !important; animation: none !important; }
}