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

        body {
            font-family: 'IRANSans', 'Tahoma', 'Vazir', 'Segoe UI', sans-serif;
            min-height: 100vh;
            min-height: -webkit-fill-available;
            background: #0c969c;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
            position: fixed;
            width: 100%;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            touch-action: manipulation;
            -webkit-overflow-scrolling: touch;
            -webkit-tap-highlight-color: transparent;
        }

        .bg-base {
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            background: #0c969c;
            z-index: 0;
        }

        .teal-dots {
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            background-image: radial-gradient(#5fc3c8 1px, transparent 1px);
            background-size: 55px 55px;
            opacity: 0.2;
            z-index: 0;
            pointer-events: none;
        }

        .orb {
            position: fixed;
            border-radius: 50%;
            filter: blur(90px);
            z-index: 0;
            animation: slowDrift 24s infinite ease-in-out;
        }

        .orb-1 {
            width: 520px;
            height: 520px;
            background: #5fc3c8;
            opacity: 0.15;
            top: -200px;
            right: -150px;
        }

        .orb-2 {
            width: 440px;
            height: 440px;
            background: #3aa8af;
            opacity: 0.18;
            bottom: -180px;
            left: -140px;
            animation-delay: -7s;
        }

        .orb-3 {
            width: 360px;
            height: 360px;
            background: #2f9da3;
            opacity: 0.16;
            top: 45%;
            left: 15%;
            animation-delay: -14s;
        }

        .orb-4 {
            width: 300px;
            height: 300px;
            background: #7fcdd2;
            opacity: 0.14;
            bottom: 12%;
            right: 8%;
            animation-delay: -4s;
        }

        @keyframes slowDrift {
            0%, 100% { transform: translate(0, 0) scale(1); }
            50% { transform: translate(35px, -40px) scale(1.08); }
        }

        .particle-container {
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            z-index: 0;
            pointer-events: none;
        }

        .particle {
            position: absolute;
            border-radius: 50%;
            background: #5fc3c8;
            opacity: 0;
            animation: floatParticle 13s linear infinite;
        }

        @keyframes floatParticle {
            0% {
                transform: translateY(100vh) rotate(0deg);
                opacity: 0;
            }
            15% {
                opacity: 0.5;
            }
            85% {
                opacity: 0.25;
            }
            100% {
                transform: translateY(-10vh) rotate(360deg);
                opacity: 0;
            }
        }

        .login-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 10;
            padding: 20px;
            overflow: hidden;
        }

        .login-container {
            width: 100%;
            max-width: 440px;
            animation: fadeUp 0.65s cubic-bezier(0.2, 0.9, 0.4, 1.2);
            position: relative;
            z-index: 2;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(35px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .login-card {
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(28px);
            -webkit-backdrop-filter: blur(28px);
            border-radius: 42px;
            padding: 46px 34px;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(12, 150, 156, 0.5);
            border: 1px solid rgba(12, 150, 156, 0.35);
            transition: all 0.3s ease;
            position: relative;
        }

        .login-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 35px 70px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(12, 150, 156, 0.7);
        }

        .login-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 5%;
            right: 5%;
            height: 2px;
            background: linear-gradient(90deg, transparent, #0c969c, #5fc3c8, #0c969c, transparent);
            border-radius: 4px;
            z-index: 3;
        }

        .icon-section {
            text-align: center;
            margin-bottom: 28px;
        }

        .icon-container {
            width: 90px;
            height: 90px;
            background: linear-gradient(145deg, #0c969c, #5fc3c8);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 12px 28px rgba(12, 150, 156, 0.5), 0 0 0 5px rgba(12, 150, 156, 0.2);
            animation: tealGlow 3s ease-in-out infinite;
        }

        .icon-container i {
            font-size: 44px;
            color: #0a0a0a;
            filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
        }

        @keyframes tealGlow {
            0%, 100% {
                box-shadow: 0 12px 28px rgba(12, 150, 156, 0.5), 0 0 0 5px rgba(12, 150, 156, 0.2);
                transform: scale(1);
            }
            50% {
                box-shadow: 0 18px 36px rgba(12, 150, 156, 0.7), 0 0 0 12px rgba(12, 150, 156, 0.1);
                transform: scale(1.02);
            }
        }

        .title {
            text-align: center;
            color: #0c969c;
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
            text-shadow: 0 2px 8px rgba(0,0,0,0.4);
        }

        .subtitle {
            text-align: center;
            color: #5fc3c8;
            font-size: 14px;
            margin-bottom: 36px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .error-box {
            background: rgba(12, 150, 156, 0.15);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(12, 150, 156, 0.6);
            color: #a8e6e8;
            padding: 12px 18px;
            border-radius: 28px;
            margin-bottom: 26px;
            text-align: center;
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .form-group {
            margin-bottom: 24px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            color: #0c969c;
            font-weight: 600;
            font-size: 13px;
            letter-spacing: 0.3px;
        }

        .input-wrapper {
            position: relative;
        }

        .input-wrapper i {
            position: absolute;
            right: 18px;
            top: 50%;
            transform: translateY(-50%);
            color: #5fc3c8;
            font-size: 18px;
            transition: all 0.2s;
            pointer-events: none;
        }

        .form-input {
            width: 100%;
            padding: 15px 52px 15px 20px;
            background: rgba(12, 150, 156, 0.1);
            border: 1.5px solid #2f9da3;
            border-radius: 34px;
            font-size: 14px;
            color: #e0f7fa;
            transition: all 0.25s;
            font-family: inherit;
        }

        .form-input::placeholder {
            color: #5fc3c8;
            font-size: 13px;
            opacity: 0.6;
        }

        .form-input:focus {
            outline: none;
            border-color: #0c969c;
            background: rgba(12, 150, 156, 0.2);
            box-shadow: 0 0 0 3px rgba(12, 150, 156, 0.3);
        }

        .form-input:focus ~ i {
            color: #0c969c;
        }

        .options-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 32px;
        }

        .remember-label {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #5fc3c8;
            font-size: 13px;
            cursor: pointer;
            font-weight: 500;
        }

        .remember-label input {
            width: 17px;
            height: 17px;
            accent-color: #0c969c;
            cursor: pointer;
        }

        .btn-submit {
            width: 100%;
            padding: 16px;
            background: linear-gradient(115deg, #0c969c, #5fc3c8);
            color: #0a0a0a;
            border: none;
            border-radius: 44px;
            font-size: 16px;
            font-weight: 800;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 8px 20px rgba(12, 150, 156, 0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            letter-spacing: 0.5px;
        }

        .btn-submit:hover {
            background: linear-gradient(115deg, #5fc3c8, #0c969c);
            transform: translateY(-2px);
            box-shadow: 0 14px 28px rgba(12, 150, 156, 0.7);
        }

        .btn-submit:active {
            transform: translateY(1px);
        }

        .btn-submit.loading {
            pointer-events: none;
            opacity: 0.85;
        }

        .btn-submit.loading .btn-text {
            visibility: hidden;
        }

        .btn-submit.loading::before {
            content: '';
            position: absolute;
            width: 22px;
            height: 22px;
            border: 2px solid #0a0a0a;
            border-top: 2px solid transparent;
            border-radius: 50%;
            animation: spin 0.7s linear infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .divider {
            display: flex;
            align-items: center;
            margin-top: 32px;
            color: #3aa8af;
            font-size: 12px;
        }

        .divider::before,
        .divider::after {
            content: '';
            flex: 1;
            height: 1px;
            background: linear-gradient(90deg, transparent, #5fc3c8, #0c969c, #5fc3c8, transparent);
        }

        .divider span {
            padding: 0 16px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        @media (max-width: 520px) {
            .login-card {
                padding: 38px 24px;
                border-radius: 36px;
            }
            .title {
                font-size: 27px;
            }
            .icon-container {
                width: 78px;
                height: 78px;
            }
            .icon-container i {
                font-size: 36px;
            }
            .form-input {
                padding: 13px 48px 13px 16px;
            }
            .btn-submit {
                padding: 14px;
                font-size: 15px;
            }
        }