:root {
  --hs-bg-color: #f0f0f0;
  --hs-case-color: #1a1a1a;
  --hs-strap-color: #d35f28;
  --hs-screen-color: #000000;
  --hs-control-bg: #111111;
  --hs-accent-color: #d35f28;
  --hs-shadow-color: rgba(0, 0, 0, 0.5);
}

.device-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: sans-serif; /* Ensure font consistency within component */
}

.interaction-label {
  position: absolute;
  top: -50px;
  background-color: rgba(255, 255, 255, 0.9);
  color: rgb(66, 30, 0); /* Dark brown from case study */
  padding: 8px 16px;
  border-radius: 4px;
  border: 1px solid rgba(66, 30, 0, 0.1);
  font-family: "Space Grotesk", sans-serif;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  animation: float 4s ease-in-out infinite;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(4px);
}

.interaction-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background-color: var(--hs-accent-color);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

.interaction-label::after {
  /* Removed arrow for cleaner look */
  content: none;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes pulse-dot {
  0% { transform: scale(0.8); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.8); opacity: 0.5; }
}

/* Strap */
.strap {
  width: 140px;
  height: 60px;
  background-color: var(--hs-strap-color);
  position: relative;
  z-index: 0;
}

.strap.top {
  border-radius: 10px 10px 0 0;
  margin-bottom: -10px;
  background: linear-gradient(to bottom, #222 15%, var(--hs-strap-color) 15%);
}

.strap.bottom {
  border-radius: 0 0 10px 10px;
  margin-top: -10px;
  background: linear-gradient(to top, #333 15%, var(--hs-strap-color) 15%);
}

/* Case */
.case {
  width: 280px;
  height: 340px;
  background-color: var(--hs-case-color);
  border-radius: 45px;
  padding: 20px;
  box-sizing: border-box;
  position: relative;
  z-index: 1;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3),
    inset 0 2px 5px rgba(255, 255, 255, 0.1),
    inset 0 -2px 5px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 15px;
}

/* Side Button */
.button-side {
    position: absolute;
    right: -15px;
    top: -15px;
    width: 120px;
    height: 120px;
    z-index: -1;
    pointer-events: none; /* Let clicks pass through if needed, or remove if button should be clickable */
}

/* Screen */
.screen-area {
  flex: 1.5;
  background-color: var(--hs-screen-color);
  border-radius: 25px 25px 4px 4px;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.2);
  overflow: hidden; /* Clip content */
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Screen Area - Retro NASA Style */
#screen-content {
    width: 100%;
    height: 100%;
    padding: 10px;
    box-sizing: border-box;
    color: rgba(255, 255, 255, 0.9);
    font-family: 'Courier New', Courier, monospace; /* Monospace for technical look */
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 20px 20px; /* Grid effect */
    position: relative;
}

.screen-step {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    animation: fadeIn 0.5s ease;
}

.screen-step.active {
    display: flex;
}

/* New Visuals for Steps 04-06 (Restored) */
.icon-visor {
    width: 30px;
    height: 18px;
    border: 2px solid var(--hs-accent-color);
    border-radius: 4px;
    position: relative;
    margin-bottom: 5px;
}

.icon-visor::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 22px;
    height: 10px;
    background-color: rgba(211, 95, 40, 0.3);
}

/* Corner Brackets Decoration */
#screen-content::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    pointer-events: none;
    clip-path: polygon(
        0 10px, 0 0, 10px 0, 
        calc(100% - 10px) 0, 100% 0, 100% 10px,
        100% calc(100% - 10px), 100% 100%, calc(100% - 10px) 100%,
        10px 100%, 0 100%, 0 calc(100% - 10px)
    );
}

/* Typography Overrides */
#screen-content h1, #screen-content h2, #screen-content h3 {
    font-family: 'Courier New', Courier, monospace; /* Explicitly override global font */
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: normal;
    margin-bottom: 4px; /* Reduced from 8px */
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    display: inline-block;
    padding-bottom: 2px;
    color: rgba(255, 255, 255, 0.9);
}

#screen-content p {
    font-size: 9px; /* Reduced from 10px */
    opacity: 0.8;
    margin-bottom: 8px; /* Reduced from 12px */
    line-height: 1.4;
    max-width: 95%;
    color: rgba(255, 255, 255, 0.9);
}

/* Button Overhaul - Tactical */
.btn-primary, .btn-secondary {
    border: 1px solid var(--hs-accent-color);
    background: rgba(211, 95, 40, 0.1);
    color: var(--hs-accent-color);
    border-radius: 0; /* Squared corners */
    padding: 4px 12px; /* Reduced from 6px 16px */
    font-family: 'Courier New', Courier, monospace;
    text-transform: uppercase;
    font-size: 10px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.btn-primary:hover, .btn-secondary:hover {
    background: var(--hs-accent-color);
    color: #000;
}

.btn-primary::after {
    /* Technical marker on button */
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 4px;
    background: currentColor;
}

/* Step Specific Visuals - Technical Update */
.icon-check {
    width: 40px;
    height: 40px;
    border: 2px solid var(--hs-accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    position: relative;
}

.icon-check::after {
    content: '';
    position: absolute;
    top: 48%;
    left: 50%;
    width: 14px;
    height: 7px;
    border-left: 2px solid var(--hs-accent-color);
    border-bottom: 2px solid var(--hs-accent-color);
    transform: translate(-50%, -60%) rotate(-45deg);
}

.pulse-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--hs-accent-color);
    opacity: 0.5;
    animation: pulse 2s infinite;
    border: 1px dashed var(--hs-accent-color); /* Dashed for technical feel */
}

.spinner {
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-top: 2px solid var(--hs-accent-color);
    border-radius: 50%; /* Keep spinner round or make it square? Round is standard for rotation */
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.intensity-meter {
    width: 70%;
    height: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    border-radius: 0;
    position: relative;
    margin: 5px 0;
    overflow: hidden;
}

.intensity-bar {
    height: 100%;
    background-color: var(--hs-accent-color);
    transition: width 0.1s;
}

.intensity-value {
    margin-top: 2px;
    font-size: 10px;
    font-weight: bold;
}

#intensity-bar {
    background: repeating-linear-gradient(
        90deg,
        var(--hs-accent-color),
        var(--hs-accent-color) 2px,
        transparent 2px,
        transparent 4px
    ); /* Segmented bar look */
}

.immersion-visual {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px dashed rgba(255, 255, 255, 0.2);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 2px 0; /* Tight margin */
    position: relative;
}

.immersion-circle {
    background: radial-gradient(circle, var(--hs-accent-color) 0%, transparent 70%);
    box-shadow: none;
    border: 1px solid var(--hs-accent-color);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

#screen-content h1 { font-size: 18px; } /* Reduced from 24px */
#screen-content h2 { font-size: 16px; } /* Reduced from 20px */

.btn-primary, .btn-secondary {
    padding: 8px 20px; /* Reduced padding */
    border-radius: 16px;
    border: none;
    font-size: 12px; /* Reduced from 14px */
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.1s, opacity 0.2s;
}

.btn-primary {
    background-color: var(--hs-accent-color);
    color: white;
    box-shadow: 0 4px 10px rgba(211, 95, 40, 0.3);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.btn-primary:active, .btn-secondary:active {
    transform: scale(0.95);
}

.button-group {
    display: flex;
    gap: 15px;
}

/* Visuals */
.icon-logo {
    width: 30px; /* Reduced from 40px */
    height: 30px; /* Reduced from 40px */
    background-color: var(--hs-accent-color);
    border-radius: 50%;
    margin-bottom: 8px; /* Reduced from 10px */
    box-shadow: 0 0 15px rgba(211, 95, 40, 0.5);
}

.hand-visual {
    display: flex;
    gap: 8px;
    height: 40px;
    align-items: flex-end;
}

.finger {
    width: 8px;
    background-color: rgba(255,255,255,0.2);
    border-radius: 4px;
}

.finger.f1 { height: 25px; animation: flexFinger 1.5s infinite 0s; }
.finger.f2 { height: 35px; animation: flexFinger 1.5s infinite 0.2s; }
.finger.f3 { height: 30px; animation: flexFinger 1.5s infinite 0.4s; }
.finger.f4 { height: 20px; animation: flexFinger 1.5s infinite 0.6s; }

@keyframes flexFinger {
    0%, 100% { height: inherit; background-color: rgba(255,255,255,0.2); }
    50% { height: 10px; background-color: var(--hs-accent-color); }
}

.pulse-visual {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--hs-accent-color);
    opacity: 0.5;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.8); opacity: 0.3; }
    50% { transform: scale(1.1); opacity: 0.6; }
    100% { transform: scale(0.8); opacity: 0.3; }
}

/* Controls */
.controls-area {
  flex: 1;
  display: flex;
  gap: 15px;
}

.control-module {
  flex: 1;
  background-color: var(--hs-control-bg);
  border-radius: 20px;
  position: relative;
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.5),
    0 1px 0 rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Slider */
.slider-module {
    display: flex;
    justify-content: center;
    align-items: center;
}

.slider-track {
    width: 12px;
    height: 90px;
    background-color: #0d0d0d;
    border-radius: 6px;
    position: relative;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.8), 0 1px 0 rgba(255,255,255,0.05);
    transform: rotate(45deg);
}

.slider-handle {
    width: 36px;
    height: 36px;
    background-color: var(--hs-accent-color);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    top: 50%; /* Start at center */
    transform: translate(-50%, -50%);
    box-shadow: 
        0 4px 8px rgba(0,0,0,0.6),
        inset 0 2px 5px rgba(255,255,255,0.3),
        inset 0 -2px 5px rgba(0,0,0,0.2);
    cursor: grab;
    z-index: 10;
}

.slider-handle:active {
    cursor: grabbing;
}

/* Knob */
.knob-module {
    display: flex;
    justify-content: center;
    align-items: center;
}

.knob-base {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: conic-gradient(from 180deg, #2a2a2a, #1a1a1a, #2a2a2a);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 
        0 5px 15px rgba(0,0,0,0.4),
        inset 0 1px 2px rgba(255,255,255,0.05);
    position: relative;
}

/* Tick marks around knob */
.knob-base::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: repeating-conic-gradient(
        rgba(255,255,255,0.03) 0deg 2deg,
        transparent 2deg 30deg
    );
}

.knob-dial {
    width: 44px;
    height: 44px;
    background-color: var(--hs-accent-color);
    border-radius: 50%;
    position: relative;
    box-shadow: 
        0 3px 8px rgba(0,0,0,0.5),
        inset 0 2px 5px rgba(255,255,255,0.3),
        inset 0 -2px 5px rgba(0,0,0,0.2);
    cursor: grab;
    z-index: 10;
}

.knob-dial:active {
    cursor: grabbing;
}

.knob-dial::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background-color: rgba(0,0,0,0.2);
    border-radius: 50%;
}