/* ========================================
   RESET & BASE STYLES
   ======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    overflow-x: hidden;
}

/* ========================================
   LAYOUT COMPONENTS
   ======================================== */

.container {
    max-width: 400px;
    margin: 0 auto;
    padding: 15px;
    min-height: 100vh;
}

header {
    text-align: center;
    margin-bottom: 30px;
    color: white;
}

header h1 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

header p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ========================================
   STATUS SECTION
   ======================================== */

.status {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    padding: 15px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.status div {
    font-size: 0.85rem;
    margin-bottom: 5px;
    padding: 5px 0;
}

.status div:last-child {
    margin-bottom: 0;
}

.warning-message {
    color: #e74c3c;
    font-weight: bold;
    margin-top: 10px;
}

/* ========================================
   COMPASS COMPONENTS
   ======================================== */

.compass {
    background: #e8ecff;
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    text-align: center;
}

.compass-circle {
    width: calc(100vw - 40px);
    height: calc(100vw - 40px);
    max-width: 290px;
    max-height: 290px;
    border: 3px solid #667eea;
    border-radius: 50%;
    margin: 0 auto;
    position: relative;
    background: radial-gradient(circle, #f8f9ff 0%, #e8ecff 100%);
}

.compass-directions {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.direction {
    position: absolute;
    font-weight: bold;
    font-size: 1.1rem;
    color: #667eea;
}

.direction.north {
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
}

.direction.east {
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
}

.direction.south {
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
}

.direction.west {
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
}

/* ========================================
   COMPASS LINES & LANDMARKS
   ======================================== */

.compass-line {
    position: absolute;
    top: 15px;
    left: 50%;
    width: 2px;
    height: calc(50% - 15px);
    background: #999eff;
    transform-origin: bottom center;
    transform: translateX(-50%) rotate(0deg);
    border-radius: 1px;
    display: none;
    z-index: 1;
}

.compass-line.visible {
    display: flex;
}

.line-distance {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) rotate(-90deg);
    background: #e8ecff;
    color: #999eff;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: bold;
    white-space: nowrap;
    pointer-events: none;
    border: 2px solid #999eff;
    z-index: 5;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.compass-line.visible .line-distance {
    opacity: 1;
}

.compass-landmark {
    position: absolute;
    left: 50%;
    top: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.compass-landmark.visible {
    display: flex;
}

.compass-landmark.visible img {
    transform-origin: center bottom;
    animation: landmarkHeightAnimation 0.5s ease-out forwards;
}

.compass-landmark img {
    object-fit: cover;
}

/* ========================================
   LOADING & ANIMATIONS
   ======================================== */

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 20;
}

.loading-spinner.show {
    display: flex;
}

.spinner-ring {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(102, 126, 234, 0.2);
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

.spinner-text {
    font-size: 0.8rem;
    color: #667eea;
    font-weight: bold;
    text-align: center;
}

.loading {
    animation: pulse 1.5s infinite;
}

/* Keyframe Animations */
@keyframes landmarkHeightAnimation {
    0% {
        scale: 1 0;
    }
    40% {
        scale: 1 1.2;
    }
    70% {
        scale: 1 0.9;
    }
    100% {
        scale: 1 1;
    }
}

@keyframes distanceSlideIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

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

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ========================================
   BUTTONS & CONTROLS
   ======================================== */

#refresh-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

#refresh-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

#refresh-btn:active {
    transform: translateY(0);
}

#github-div {
    width: 100%;
    padding: 20px;
    border: none;
    font-size: 0.9rem;
    text-align: center;
}

#github-link {
    color: #69f;
}

/* ========================================
   MODAL COMPONENTS
   ======================================== */

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    margin: 20px;
    padding: 20px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    width: 90%;
    text-align: center;
    animation: modalSlideIn 0.3s ease-out;
}

.modal-content h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.modal-content p {
    color: #333;
    margin-bottom: 10px;
    line-height: 1.5;
    font-size: 0.95rem;
}

#sensor-permission-description {
    line-height: 1.5;
}

.privacy-details {
    background: rgba(102, 126, 234, 0.1);
    padding: 15px;
    border-radius: 10px;
    margin: 15px 0;
    border-left: 4px solid #667eea;
    list-style: none;
    text-align: left;
}

.privacy-details li {
    font-size: 0.9rem;
    line-height: 1.5;
    color: #555;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.privacy-details li:last-child {
    margin-bottom: 0;
}

.privacy-details li::before {
    content: "•";
    color: #667eea;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.modal-buttons {
    display: flex;
    gap: 15px;
    margin-top: 25px;
    justify-content: center;
}

.modal-btn {
    padding: 12px 25px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 100px;
}

.modal-btn.cancel {
    background: #f1f2f6;
    color: #666;
    border: 2px solid #ddd;
}

.modal-btn.cancel:hover {
    background: #e8e9ed;
    border-color: #bbb;
}

.modal-btn.ok {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.modal-btn.ok:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.modal-btn:active {
    transform: translateY(0);
}