/* ==========================================================================
   Headphone Test - EasyToolio Modern Minimal Design System
   Light & Dark Theme Adaptive CSS (Apple-Inspired Aesthetic)
   ========================================================================== */

/* Step Card & Diagnostic Container */
.hp-step-card {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.dark .hp-step-card {
    background-color: rgba(0, 0, 0, 0.35);
    border-color: rgba(255, 255, 255, 0.06);
    box-shadow: none;
}

/* Step Navigation Tabs / Pills */
.hp-nav-step {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.hp-nav-step.active {
    background-color: #ecfeff !important;
    border-color: #06b6d4 !important;
    color: #0e7490 !important;
    box-shadow: 0 0 0 1px #06b6d4, 0 2px 6px rgba(6, 182, 212, 0.15) !important;
}

.dark .hp-nav-step.active {
    background-color: rgba(6, 182, 212, 0.15) !important;
    border-color: #22d3ee !important;
    color: #67e8f9 !important;
    box-shadow: 0 0 0 1px #22d3ee, 0 0 12px rgba(6, 182, 212, 0.25) !important;
}

.hp-nav-step.completed {
    border-color: #10b981;
    color: #047857;
}

.dark .hp-nav-step.completed {
    border-color: rgba(52, 211, 153, 0.4);
    color: #34d399;
}

/* User Confirmation Feedback Buttons */
.hp-feedback-btn {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    color: #334155;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 42px;
}

.hp-feedback-btn:hover:not(:disabled) {
    border-color: #cbd5e1;
    background-color: #f8fafc;
    color: #0f172a;
}

.dark .hp-feedback-btn {
    background-color: rgba(39, 39, 42, 0.8);
    border-color: rgba(63, 63, 70, 0.9);
    color: #d4d4d8;
    box-shadow: none;
}

.dark .hp-feedback-btn:hover:not(:disabled) {
    border-color: #71717a;
    background-color: #27272a;
    color: #ffffff;
}

.hp-feedback-btn.selected-good {
    background-color: #ecfdf5 !important;
    border-color: #10b981 !important;
    color: #047857 !important;
    box-shadow: 0 0 0 1px #10b981, 0 2px 8px rgba(16, 185, 129, 0.15) !important;
}

.dark .hp-feedback-btn.selected-good {
    background-color: rgba(16, 185, 129, 0.15) !important;
    border-color: #34d399 !important;
    color: #6ee7b7 !important;
    box-shadow: 0 0 0 1px #34d399, 0 0 12px rgba(16, 185, 129, 0.25) !important;
}

.hp-feedback-btn.selected-warn {
    background-color: #fffbeb !important;
    border-color: #f59e0b !important;
    color: #b45309 !important;
    box-shadow: 0 0 0 1px #f59e0b, 0 2px 8px rgba(245, 158, 11, 0.15) !important;
}

.dark .hp-feedback-btn.selected-warn {
    background-color: rgba(245, 158, 11, 0.15) !important;
    border-color: #fbbf24 !important;
    color: #fde68a !important;
    box-shadow: 0 0 0 1px #fbbf24, 0 0 12px rgba(245, 158, 11, 0.25) !important;
}

.hp-feedback-btn.selected-bad {
    background-color: #fef2f2 !important;
    border-color: #ef4444 !important;
    color: #b91c1c !important;
    box-shadow: 0 0 0 1px #ef4444, 0 2px 8px rgba(239, 68, 68, 0.15) !important;
}

.dark .hp-feedback-btn.selected-bad {
    background-color: rgba(239, 68, 68, 0.15) !important;
    border-color: #f87171 !important;
    color: #fca5a5 !important;
    box-shadow: 0 0 0 1px #f87171, 0 0 12px rgba(239, 68, 68, 0.25) !important;
}

.hp-feedback-btn.selected-unsure {
    background-color: #f1f5f9 !important;
    border-color: #94a3b8 !important;
    color: #1e293b !important;
    box-shadow: 0 0 0 1px #94a3b8 !important;
}

.dark .hp-feedback-btn.selected-unsure {
    background-color: rgba(148, 163, 184, 0.15) !important;
    border-color: #94a3b8 !important;
    color: #e2e8f0 !important;
    box-shadow: 0 0 0 1px #94a3b8 !important;
}

/* Secondary Action Buttons in Light Mode */
.btn-secondary-light {
    background-color: #f1f5f9;
    border: 1px solid #e2e8f0;
    color: #334155;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.btn-secondary-light:hover:not(:disabled) {
    background-color: #e2e8f0;
    border-color: #cbd5e1;
    color: #0f172a;
}

.dark .btn-secondary-light {
    background-color: #27272a;
    border-color: #3f3f46;
    color: #d4d4d8;
    box-shadow: none;
}

.dark .btn-secondary-light:hover:not(:disabled) {
    background-color: #3f3f46;
    border-color: #52525b;
    color: #ffffff;
}

/* Stereo Panning Stage Indicator */
.pan-track-container {
    background: linear-gradient(145deg, #f8fafc 0%, #f1f5f9 100%);
    border: 1px solid #cbd5e1;
}

.dark .pan-track-container {
    background: rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.08);
}

#hp-pan-indicator {
    transition: left 0.08s linear;
}

/* Touch Target Minimum Sizing */
.touch-target {
    min-height: 42px;
}