:root {
            --primary: #3498db;
            --secondary: #9b59b6;
            --success: #2ecc71;
            --danger: #e74c3c;
            --dark: #2c3e50;
            --light: #ecf0f1;
            --gray: #95a5a6;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            -webkit-overflow-scrolling: touch;
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: linear-gradient(135deg, #f5f7fa 0%, #e3e8f7 100%);
            color: var(--dark);
            line-height: 1.6;
        }

        header {
            text-align: center;
            padding: 20px 15px 10px;
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            width: 100%;
        }

        #title {
            font-size: clamp(2.2rem, 6vw, 3.5rem);
            margin: 0;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.5px;
        }

        .tagline {
            font-size: clamp(0.95rem, 2.5vw, 1.2rem);
            color: var(--gray);
            margin: 5px 0 10px;
            font-weight: 500;
        }

        #error {
            color: var(--danger);
            font-weight: 600;
            text-align: center;
            margin: 8px 0;
            min-height: 24px;
            font-size: clamp(0.9rem, 3vw, 1rem);
        }

        .content-wrapper {
            display: flex;
            flex-direction: column;
            flex: 1;
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 15px;
        }

        .map-container {
            position: relative;
            flex: 1;
            display: flex;
            flex-direction: column;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
            margin-bottom: 20px;
            min-height: 300px;
        }

        #map {
            -webkit-backface-visibility: hidden;
            transform: translateZ(0);
            flex: 1;
            width: 100%;
            z-index: 10;
        }

        #locate-btn {
            position: absolute;
            bottom: 20px;
            right: 20px;
            background: white;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            box-shadow: 0 1px 5px rgba(0, 0, 0, 0.4);
            z-index: 1000;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            -webkit-appearance: none;
        }

        .permission-prompt {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.7);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            display: none;
        }

        .permission-box {
            background: white;
            border-radius: 15px;
            padding: 25px;
            max-width: 450px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }

        .permission-box h3 {
            color: var(--dark);
            margin-bottom: 15px;
            font-size: 1.4rem;
        }

        .permission-box p {
            color: var(--gray);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .permission-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 30px;
            font-size: 1.1rem;
            cursor: pointer;
            font-weight: 600;
            margin: 0 5px;
        }

        .permission-btn.secondary {
            background: var(--gray);
        }


        .controls-section {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 0 10px;
            width: 100%;
        }

        #mood-section {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin: 15px 0 20px;
            padding: 12px 0;
            background: rgba(255, 255, 255, 0.85);
            border-radius: 50px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
            width: 100%;
            max-width: 800px;
        }

        .mood-icon {
            width: clamp(45px, 9vw, 65px);
            height: clamp(45px, 9vw, 65px);
            cursor: pointer;
            transition: all 0.3s ease;
            border-radius: 50%;
            padding: 6px;
            background: rgba(255, 255, 255, 0.9);
            box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
            -webkit-user-select: none;
            user-select: none;
        }

        .mood-icon:hover {
            transform: scale(1.12);
            background: rgba(255, 255, 255, 1);
            box-shadow: 0 5px 12px rgba(0, 0, 0, 0.15);
        }

        .mood-icon.active {
            transform: scale(1.15);
            background: var(--primary);
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.6);
        }

        #form-div {
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 100%;
            max-width: 500px;
            padding: 20px;
            background: white;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            margin: 10px 0 20px;
            z-index: 1000;
        }

        #form-div h3 {
            margin-bottom: 18px;
            text-align: center;
            color: var(--dark);
            font-size: clamp(1.15rem, 3.5vw, 1.4rem);
        }

        #form-div textarea {
            width: 100%;
            height: 110px;
            padding: 14px;
            margin-bottom: 18px;
            border: 1px solid #ddd;
            border-radius: 10px;
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            transition: border 0.3s;
            -webkit-appearance: none;
        }

        #form-div textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }

        #form-div button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 28px;
            border-radius: 30px;
            font-size: 1.05rem;
            cursor: pointer;
            transition: all 0.3s;
            font-weight: 600;
            width: 100%;
            max-width: 200px;
            box-shadow: 0 3px 8px rgba(52, 152, 219, 0.3);
            -webkit-appearance: none;
        }

        #form-div button:hover {
            background: #2980b9;
            transform: translateY(-2px);
            box-shadow: 0 5px 12px rgba(52, 152, 219, 0.4);
        }

        #form-div .btn-cancel {
            background: var(--danger);
            margin-top: 10px;
            box-shadow: 0 3px 8px rgba(231, 76, 60, 0.3);
        }

        #form-div .btn-cancel:hover {
            background: #c0392b;
            box-shadow: 0 5px 12px rgba(231, 76, 60, 0.4);
        }

        .instructions {
            text-align: center;
            max-width: 700px;
            margin: 10px auto 20px;
            padding: 0 15px;
            font-size: clamp(0.95rem, 2.8vw, 1.1rem);
            color: var(--gray);
            line-height: 1.7;
        }

        footer {
            text-align: center;
            padding: 20px 15px;
            color: var(--gray);
            font-size: 0.9rem;
            background: rgba(255, 255, 255, 0.85);
            margin-top: auto;
            width: 100%;
        }

        /* Popup styling */
        .leaflet-popup-content-wrapper {
            border-radius: 10px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
        }

        .leaflet-popup-content {
            margin: 12px;
            text-align: center;
            font-size: 1rem;
        }

        .leaflet-popup-content h3 {
            color: var(--primary);
            margin-bottom: 5px;
        }

        /* Loading spinner */
        .loader {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 1001;
        }

        .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid rgba(0, 0, 0, 0.1);
            border-left: 4px solid var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        /* iOS-specific styles */
        .ios-device .map-container {
            border-radius: 0;
            box-shadow: none;
        }

        .ios-device body {
            padding-bottom: constant(safe-area-inset-bottom);
            padding-bottom: env(safe-area-inset-bottom);
        }

        .ios-device #map {
            -webkit-mask-image: -webkit-radial-gradient(white, black);
        }

        /* macOS-specific styles */
        .macos-device #map {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }

        /* Apple form elements */
        .ios-device #form-div textarea,
        .macos-device #form-div textarea,
        .ios-device #form-div button,
        .macos-device #form-div button {
            -webkit-appearance: none;
            border-radius: 8px;
        }

        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-thumb {
            background-color: var(--primary);
            border-radius: 4px;
        }

        /* Safari scrollbars */
        .ios-device ::-webkit-scrollbar,
        .macos-device ::-webkit-scrollbar {
            width: 8px;
        }

        .ios-device ::-webkit-scrollbar-thumb,
        .macos-device ::-webkit-scrollbar-thumb {
            background-color: var(--primary);
            border-radius: 4px;
        }

        /* iOS loader positioning fix */
        .ios-device .loader {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 1001;
        }

        #mac-permission-prompt {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.7);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        #mac-enable-location {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 30px;
            font-size: 1.1rem;
            cursor: pointer;
            font-weight: 600;
            margin: 0 5px;
        }

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

            100% {
                transform: rotate(360deg);
            }
        }

        /* Responsive adjustments */
        @media (max-width: 768px) {
            .map-container {
                border-radius: 12px;
            }

            #mood-section {
                padding: 10px 0;
                border-radius: 40px;
                gap: 10px;
            }

            .mood-icon {
                width: clamp(40px, 10vw, 55px);
                height: clamp(40px, 10vw, 55px);
            }

            #form-div {
                padding: 18px;
            }
        }

        @media (max-width: 480px) {
            header {
                padding: 15px 10px 5px;
            }

            .content-wrapper {
                padding: 10px;
            }

            #mood-section {
                border-radius: 35px;
                gap: 8px;
                padding: 8px 0;
            }

            .mood-icon {
                width: 42px;
                height: 42px;
            }

            #form-div {
                padding: 15px;
            }

            #form-div textarea {
                height: 90px;
                padding: 12px;
            }
        }

        @supports (-webkit-touch-callout: none) {
            .map-container {
                border-radius: 0;
                box-shadow: none;
            }

            body {
                padding-bottom: constant(safe-area-inset-bottom);
                padding-bottom: env(safe-area-inset-bottom);
            }

            #map {
                -webkit-mask-image: -webkit-radial-gradient(white, black);
            }
        }