/* ============================================================
   NutriFix App Tour — Intro.js custom styles
   Uses --nf-* palette from theme-2026.css
   ============================================================ */

/* ---- Base tooltip ---- */
.introjs-tooltip {
    background:
        radial-gradient(circle at 18% 22%, rgba(var(--nf-secondary-rgb), 0.2), transparent 52%),
        radial-gradient(circle at 82% 78%, rgba(var(--nf-primary-rgb), 0.14), transparent 48%),
        linear-gradient(145deg, rgba(20, 21, 24, 0.97) 0%, rgba(14, 15, 17, 0.99) 100%) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border: 1px solid var(--nf-border) !important;
    border-radius: 22px !important;
    box-shadow:
        var(--nf-shadow),
        0 0 0 1px rgba(var(--nf-primary-rgb), 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.05) !important;
    padding: 24px !important;
    min-width: 320px !important;
    max-width: 420px !important;
    animation: nf-tooltip-in 0.35s cubic-bezier(0.16, 1, 0.3, 1) both !important;
}

/* ---- Welcome step: CSS-owned centering + premium sizing ---- */
.introjs-tooltip.nf-welcome {
    position: fixed !important;
    left: 50% !important;
    top: 50% !important;
    min-width: 360px !important;
    max-width: 460px !important;
    animation: nf-welcome-in 0.4s cubic-bezier(0.16, 1, 0.3, 1) both !important;
}

/* ---- Ensure inner content stacks above background gradients ---- */
.introjs-tooltip-header,
.introjs-tooltiptext,
.introjs-tooltipbuttons,
.introjs-progress,
.introjs-skipbutton,
.introjs-tooltip-title {
    position: relative;
    z-index: 1;
}

/* ---- Tooltip text ---- */
.introjs-tooltiptext {
    font-size: 15px !important;
    line-height: 1.65 !important;
    color: var(--nf-text) !important;
    font-weight: 400 !important;
}

/* ---- Header ---- */
.introjs-tooltip-header {
    padding: 0 0 10px 0 !important;
    margin: 0 !important;
    border: none !important;
    min-height: 0 !important;
}

/* ---- Title ---- */
.introjs-tooltip-title {
    font-size: 17px !important;
    font-weight: 700 !important;
    color: var(--nf-text) !important;
    margin: 0 !important;
    letter-spacing: -0.01em !important;
}

/* ---- Close / Skip button ---- */
.introjs-skipbutton {
    position: absolute !important;
    top: 10px !important;
    right: 10px !important;
    color: var(--nf-text-muted) !important;
    font-weight: 400 !important;
    font-size: 20px !important;
    line-height: 1 !important;
    padding: 4px !important;
    margin: 0 !important;
    transition: color 0.2s ease !important;
    z-index: 2 !important;
}

.introjs-skipbutton:hover {
    color: var(--nf-text) !important;
}

/* ---- Progress track ---- */
.introjs-progress {
    background: rgba(var(--nf-primary-rgb), 0.1) !important;
    border-radius: 10px !important;
    height: 5px !important;
    margin-bottom: 16px !important;
    overflow: hidden !important;
}

/* ---- Progress bar with shimmer ---- */
.introjs-progressbar {
    background: linear-gradient(90deg, var(--nf-primary) 0%, var(--nf-secondary) 100%) !important;
    border-radius: 10px !important;
    position: relative !important;
    overflow: hidden !important;
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.introjs-progressbar::after {
    content: "" !important;
    position: absolute !important;
    inset: 0 !important;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.4) 50%, transparent 100%) !important;
    animation: nf-shimmer 2.4s ease-in-out infinite !important;
}

/* ---- Button base ---- */
.introjs-button {
    border: none !important;
    border-radius: 12px !important;
    padding: 9px 18px !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    letter-spacing: 0.01em !important;
    cursor: pointer !important;
    text-shadow: none !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

.introjs-button:hover {
    transform: translateY(-1px) !important;
}

.introjs-button:active {
    transform: translateY(0) !important;
}

/* ---- Next / Done buttons ---- */
.introjs-nextbutton,
.introjs-donebutton {
    background: linear-gradient(135deg, var(--nf-primary) 0%, var(--nf-secondary) 100%) !important;
    color: var(--nf-bg) !important;
    box-shadow: 0 4px 14px rgba(var(--nf-primary-rgb), 0.28) !important;
}

.introjs-nextbutton:hover,
.introjs-donebutton:hover {
    box-shadow: 0 6px 20px rgba(var(--nf-primary-rgb), 0.42) !important;
}

/* ---- Prev button ---- */
.introjs-prevbutton {
    background: rgba(var(--nf-primary-rgb), 0.08) !important;
    color: var(--nf-text-muted) !important;
    border: 1px solid var(--nf-border) !important;
}

.introjs-prevbutton:hover {
    background: rgba(var(--nf-primary-rgb), 0.14) !important;
    color: var(--nf-text) !important;
}

/* ---- Button row ---- */
.introjs-tooltipbuttons {
    border-top: 1px solid var(--nf-border) !important;
    padding-top: 14px !important;
    margin-top: 14px !important;
    display: flex !important;
    gap: 8px !important;
}

/* ---- Overlay ---- */
.introjs-overlay {
    background: rgba(5, 5, 6, 0.6) !important;
    backdrop-filter: blur(3px) !important;
    -webkit-backdrop-filter: blur(3px) !important;
}

/* ---- Highlighted element ring ---- */
.introjs-helperLayer {
    background: transparent !important;
    border: 1.5px solid rgba(var(--nf-primary-rgb), 0.7) !important;
    border-radius: 10px !important;
    box-shadow:
        0 0 0 5000px rgba(5, 5, 6, 0.6),
        0 0 22px rgba(var(--nf-primary-rgb), 0.35),
        inset 0 0 14px rgba(var(--nf-primary-rgb), 0.06) !important;
    animation: nf-ring-pulse 2.5s ease-in-out infinite !important;
}

/* ---- Arrow ---- */
.introjs-arrow {
    border: 10px solid transparent !important;
}

.introjs-arrow.top    { border-bottom-color: rgba(20, 21, 24, 0.97) !important; }
.introjs-arrow.bottom { border-top-color:    rgba(20, 21, 24, 0.97) !important; }
.introjs-arrow.left   { border-right-color:  rgba(20, 21, 24, 0.97) !important; }
.introjs-arrow.right  { border-left-color:   rgba(20, 21, 24, 0.97) !important; }

/* Hide arrow when tooltip has been manually repositioned via JS */
.introjs-tooltip[style*="left"][style*="top"] .introjs-arrow {
    display: none !important;
}

/* ============================================================
   Keyframes
   ============================================================ */

/* Regular steps: subtle scale + lift */
@keyframes nf-tooltip-in {
    from { opacity: 0; transform: scale(0.94) translateY(6px); }
    to   { opacity: 1; transform: scale(1)    translateY(0);   }
}

/* Welcome step: centered pop-in — translate must travel with scale */
@keyframes nf-welcome-in {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.93); }
    to   { opacity: 1; transform: translate(-50%, -50%) scale(1);    }
}

/* Progress bar shimmer sweep */
@keyframes nf-shimmer {
    0%   { transform: translateX(-150%); }
    60%  { transform: translateX(250%);  }
    100% { transform: translateX(250%);  }
}

/* Helper layer pulse */
@keyframes nf-ring-pulse {
    0%, 100% {
        border-color: rgba(var(--nf-primary-rgb), 0.65);
        box-shadow:
            0 0 0 5000px rgba(5, 5, 6, 0.6),
            0 0 16px rgba(var(--nf-primary-rgb), 0.28);
    }
    50% {
        border-color: rgba(var(--nf-primary-rgb), 1);
        box-shadow:
            0 0 0 5000px rgba(5, 5, 6, 0.6),
            0 0 30px rgba(var(--nf-primary-rgb), 0.55);
    }
}

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

@media (max-width: 991px) {
    .introjs-tooltip {
        min-width: 260px !important;
        max-width: calc(100vw - 40px) !important;
        padding: 16px !important;
    }

    .introjs-tooltip.nf-welcome {
        min-width: 280px !important;
        max-width: calc(100vw - 40px) !important;
    }

    .introjs-tooltiptext {
        font-size: 14px !important;
        line-height: 1.55 !important;
    }

    .introjs-tooltip-title {
        font-size: 15px !important;
    }

    .introjs-button {
        padding: 8px 14px !important;
        font-size: 12px !important;
    }

    .introjs-tooltipbuttons {
        padding-top: 10px !important;
        margin-top: 10px !important;
        gap: 6px !important;
    }

    .introjs-progress {
        height: 4px !important;
        margin-bottom: 12px !important;
    }

    .introjs-skipbutton {
        top: 8px !important;
        right: 8px !important;
        font-size: 18px !important;
    }

    .introjs-arrow {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .introjs-tooltip {
        min-width: 240px !important;
        max-width: calc(100vw - 24px) !important;
        padding: 14px !important;
    }

    .introjs-tooltip.nf-welcome {
        min-width: 240px !important;
        max-width: calc(100vw - 24px) !important;
    }
}